CN109671400B - Drive waveform debugging method for local refreshing and quick refreshing of electronic paper module - Google Patents
Drive waveform debugging method for local refreshing and quick refreshing of electronic paper module Download PDFInfo
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- CN109671400B CN109671400B CN201811568793.1A CN201811568793A CN109671400B CN 109671400 B CN109671400 B CN 109671400B CN 201811568793 A CN201811568793 A CN 201811568793A CN 109671400 B CN109671400 B CN 109671400B
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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
- 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
- G09G3/2003—Display of colours
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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
- G09G2230/00—Details of flat display driving waveforms
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- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
The invention provides a method for debugging the local refreshing and quick refreshing of a bicolor and tricolor electronic paper module, which comprises an electronic paper module, an integrated circuit and a driving program, wherein the electronic paper module is connected with the integrated circuit; the method for debugging the locally refreshed driving waveform is that a driving program is used for sending a positioning signal of an electronic paper module to an integrated circuit, so that the waveform signal is refreshed in a specific area of the electronic paper module; the quick refreshing driving waveform debugging method changes the original repeatedly refreshed positive and negative voltage sections of the waveform signal into voltage-free sections through the positioning signal, further increases the voltage-free sections of the waveform signal or reduces the positive and negative voltage sections of the waveform signal, shortens the driving time of the waveform signal and further quickly updates the picture; the repeated refreshing refers to one lifting moving cycle of charged particles in one refreshing process. Compared with the traditional driving waveform, the method for rapidly refreshing the driving waveform of the bicolor and tricolor electronic paper module has the advantages of low power consumption and short refreshing time, and can be used for refreshing in a specific area of the electronic paper module.
Description
Technical Field
The invention relates to the technical field of electronic paper, in particular to a method for debugging the local refreshing and quick refreshing driving waveforms of a bicolor and tricolor electronic paper module.
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 two-color electronic paper is prepared by encapsulating black and white charged particles in the same capsule structure, and the three-color electronic paper is prepared by encapsulating black and white red or black and white yellow or black and white blue charged particles in the same capsule structure, and controlling the lifting movement of the black and white red particles with different charges by an externally applied positive and negative electric field to display black and white two-color and three-color display effects.
The traditional driving waveform is divided into 3 stages, and the original color level is firstly erased to white or black; then activating the charged particles to facilitate the flashing of a new color level; finally, a new color level is written, but the switching time for a display with conventional drive waveforms is very long, up to several hundred milliseconds. The process of activating the particles is a square wave with a 50% duty cycle, however, this activation method is not applicable to all the gradation conversion processes; the activation mode enables the electronic paper display screen to switch between black and white, and the path of color level switching is longest, so that the image refreshing speed is seriously influenced. In addition, the traditional driving waveform can only refresh the electronic paper module in the universe, so that the electronic paper module region which does not need to be refreshed is refreshed repeatedly, the increase of the image refreshing time is influenced, the electric energy is wasted, and the use cost is improved.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the drive waveform debugging method which has short refreshing time and low power consumption and can also refresh in the specific area of the electronic paper module.
A method for debugging the local refreshing and fast refreshing driving waveforms of a bicolor and tricolor electronic paper module comprises the electronic paper module, an integrated circuit and a driving program;
the electronic paper module comprises a double-color electronic paper module and a three-color electronic paper module;
the driving program provides a positioning signal and a waveform signal for the integrated circuit, and the positioning signal controls the integrated circuit to refresh in a specific area of the electronic paper module; the method comprises the steps that a waveform signal enables components on an integrated circuit to form positive and negative voltages for a certain time on an electronic paper module, further drives charged particles on the electronic paper module to move up and down, and finally different colors are refreshed and displayed, wherein the waveform signal comprises a positive and negative voltage section and a no-voltage section which drive the charged particles to move up and down;
the method for debugging the locally refreshed driving waveform refers to sending a positioning signal of an electronic paper module to an integrated circuit through a driving program, so that the waveform signal is refreshed in a specific area of the electronic paper module;
a driving waveform debugging method for fast refreshing is characterized in that a positive and negative voltage section of a waveform signal which is refreshed repeatedly originally is changed into a voltage-free section through a positioning signal, so that the voltage-free section of the waveform signal is increased or the positive and negative voltage sections of the waveform signal are reduced, the driving time of the waveform signal is shortened, and a picture is updated rapidly; the repeated refreshing refers to one lifting and moving cycle of the charged particles in one refreshing process.
Specifically, the charged particles of the two-color e-paper module and the charged particles of the three-color e-paper module may be charged particles of each color component.
Specifically, the method comprises a driving waveform debugging method for local refreshing and fast refreshing of a black-and-white double-color electronic paper module, wherein a plurality of waveform signals form a waveform signal schematic diagram, and the waveform signal schematic diagram comprises a black-and-black stage, a black-and-white stage, a white-and-black stage and a white-and-white stage, wherein the black-and-black stage and the white-and-white stage are free of waveform signals, and the one-time fast refreshing of the black-and-white double-color electronic paper module refers to the black-and-white stage and the white-and-black stage of; the one-time partial refreshing of the black-white double-color electronic paper module refers to that after the drive program sends an electronic black-white double-color electronic paper module positioning signal to the integrated circuit, a black-white stage and a white-black stage of a waveform signal are executed in a specific area of the black-white double-color electronic paper module.
Specifically, the voltage value of the waveform signal in the black and white stage is-15V, the voltage value of the waveform signal in the white and black stage is +15V, and the driving time for the fast refreshing of the double-color electronic paper module is 300ms to 1000ms, wherein the shorter the driving time is, the more serious the refreshed afterimage becomes.
Specifically, the method comprises a driving waveform debugging method for local refreshing and fast refreshing of a black-white-red electronic paper module, wherein a plurality of waveform signals form a waveform signal schematic diagram, the waveform signal schematic diagram comprises a black, white and red three-color mutual change stage, a black-black stage, a white stage and a red-red stage, no waveform signal exists in the black-black stage, the white stage and the red-red stage, and the fast refreshing of the black-white-red electronic paper module refers to the execution of the white-black stage, the red-black stage, the black-white stage, the red-white stage, the black-red stage and the white-red stage of the waveform signals by the black-white-red electronic paper; the one-time partial refreshing of the black-white-red three-color electronic paper module refers to that the black-white and two-color electronic paper module executes a black-white stage and a white-black stage of a waveform signal, then a driving program sends a red electronic paper module positioning signal to the integrated circuit, and the black-red stage and the white-red stage of the waveform signal are executed in a specific area of the black-white-red three-color electronic paper module, wherein the driving time of the black-red stage and the white-red stage is 1000 ms-3000 ms.
Specifically, the voltage values of the waveform signals in the black-white stage and the red-white stage are-15V, the voltage values of the waveform signals in the white-black stage and the red-black stage are +15V, and the voltage values of the waveform signals in the black-red stage and the white-red stage are + 4V- + 10V.
Specifically, the waveform signals in the black-red stage and the white-red stage drive the red charged particles to move up and down, and the displayed red optical value reaches an L value >30 and an A value > 42.
Compared with the traditional driving waveform, the method for rapidly refreshing the driving waveform by the double-color electronic paper module does not flicker during refreshing, but directly displays the next picture, and has the advantages of good display effect, short refreshing time and low power consumption; the local refreshing of the double-color and three-color electronic paper module does not need full-screen flashing updating, the refreshing can be directly performed in the local area of the electronic paper module, the refreshing time is short, the energy loss during refreshing is reduced, and the use cost is reduced; the refresh time interval of the fast refresh of the three-color electronic paper module is 5 s-8 s, the display picture of the specific area is directly updated, while the refresh time interval of the traditional three-color driving waveform method is 15s and the full screen flicker is needed.
Drawings
FIG. 1 is a schematic diagram of a waveform signal for local refreshing of a black-and-white dual-color electronic paper module;
FIG. 2 is a schematic diagram of a waveform signal for fast refreshing of a black-white-red electronic paper module;
FIG. 3 is a schematic diagram of partial refresh waveform signals of the monochrome/red three-color electronic paper module.
Detailed Description
For a further understanding of the invention, reference will now be made to the preferred embodiments of the invention by way of example, and it is to be understood that the description is intended to further illustrate features and advantages of the invention, and not to limit the scope of the claims.
A method for debugging the local refreshing and fast refreshing driving waveforms of a bicolor and tricolor electronic paper module comprises the electronic paper module, an integrated circuit and a driving program;
the electronic paper module comprises a double-color electronic paper module and a three-color electronic paper module;
the driving program provides a positioning signal and a waveform signal for the integrated circuit, and the positioning signal controls the integrated circuit to refresh in a specific area of the electronic paper module; the method comprises the steps that a waveform signal enables components on an integrated circuit to form positive and negative voltages for a certain time on an electronic paper module, further drives charged particles on the electronic paper module to move up and down, and finally different colors are refreshed and displayed, wherein the waveform signal comprises a positive and negative voltage section and a no-voltage section which drive the charged particles to move up and down;
the method for debugging the locally refreshed driving waveform refers to sending a positioning signal of an electronic paper module to an integrated circuit through a driving program, so that the waveform signal is refreshed in a specific area of the electronic paper module;
a driving waveform debugging method for fast refreshing is characterized in that a positive and negative voltage section of a waveform signal which is refreshed repeatedly originally is changed into a voltage-free section through a positioning signal, so that the voltage-free section of the waveform signal is increased or the positive and negative voltage sections of the waveform signal are reduced, the driving time of the waveform signal is shortened, and a picture is updated rapidly; the repeated refreshing refers to one lifting and moving cycle of the charged particles in one refreshing process.
The charged particles of the two-color electronic paper module are black-white charged particles, and the charged particles of the three-color electronic paper module are black-white red charged particles.
The four waveform signals form a waveform signal schematic diagram, and the waveform signal schematic diagram comprises a black and black stage, a black and white stage, a white and black stage and a white and white stage, as shown in fig. 1, wherein the black and black stage and the white and white stage have no waveform signal, and the one-time quick refreshing of the black and white dual-color electronic paper module refers to the black and white stage and the white and black stage of the waveform signal executed by the black and white dual-color electronic paper module; the one-time partial refreshing of the black-white double-color electronic paper module refers to that after the drive program sends an electronic black-white double-color electronic paper module positioning signal to the integrated circuit, a black-white stage and a white-black stage of the waveform signal are executed in a specific area of the black-white double-color electronic paper module. Wherein, the voltage value of the waveform signal in the black and white stage is-15V, the voltage value of the waveform signal in the white and black stage is +15V, and the driving time for the quick refreshing of the double-color electronic paper module is 300 ms-1000 ms.
The method for debugging the driving waveform of the partial refreshing and the quick refreshing of the black-white-red electronic paper module comprises that nine waveform signals form a waveform signal schematic diagram, the waveform signal schematic diagram comprises a black, white and red three-color mutual change stage, a black-black stage, a white stage and a red stage, wherein the black-black stage, the white stage and the red stage are not provided with the waveform signals, the quick refreshing of the black-white-red electronic paper module refers to that the black-white electronic paper carries out the black-white stage, the red-black stage, the black-white stage, the red-white stage, the black-red stage and the white-red stage of the waveform signals, as shown in figure 2, the black stage comprises the black-white stage and the red-black stage, the white stage comprises the black-white stage and the red stage, and the red stage comprises the black-red stage and the; the one-time partial refreshing of the black-white-red electronic paper module refers to that the black-white electronic paper module executes the black-white stage and the white-black stage of the waveform signal, then the driving program sends the red electronic paper module positioning signal to the integrated circuit, and the black-red stage and the white-red stage of the waveform signal are executed in a specific area of the black-white-red electronic paper module, as shown in fig. 3, wherein the driving time of the black-red stage and the white-red stage is 1000 ms-3000 ms. The voltage values of the waveform signals in the black-white stage and the red-white stage are-15V, the voltage values of the waveform signals in the white-black stage and the red-black stage are +15V, and the voltage values of the waveform signals in the black-red stage and the white-red stage are + 5.4V. The waveform signals of the black-red stage and the white-red stage drive the red charged particles to move up and down, the displayed red optical value reaches an L value >30 and an A value >42, and the red stage can be cycled for 2-12 times for adjusting the displayed red optical value, as shown in FIG. 3.
A method of Integrated Circuit (IC) internal coordinate positioning, taking SSD1675A IC as an example, vertical scan direction (same inside other ICs):
COM(0X44)Set RAM X–address Start/End position
COM(0X45)Set RAM Y–address Start/End position
COM(0X4E)Set RAM X address counter
COM(0X4F)Set RAM Y address counter
WRITECOM(0x44)；
WRITEDATA(0x02)；
WRITEDATA(0x08；
the next two-bit 16-ary number in the 0X44 register is to set the start Y coordinate to the end Y coordinate. Y coordinate value TFT origin (gate value at scanning start when determining IC scanning direction to determine full-brush at initialization, and whether coordinate value is increasing or decreasing) to start position pixel number divided by 8 to get the start coordinate value of Y, and to end position pixel number divided by 8 to get the integer to be the Y end coordinate value. Note that since the data is 8 bits, the number of pixels of the pattern Y at the calculation position is an integral multiple of 8.
WRITECOM(0x45)；
WRITEDATA(0x84)；
WRITEDATA(0x00)；
WRITEDATA(0x5e)；
WRITEDATA(0x00)；
The 0X45 register sets the next 4 two-bit 16-ary number to set the start X coordinate to the end X coordinate. The X-coordinate value TFT origin (the source value at the start of the scan when the IC scan direction is determined to determine a full brush at initialization, and whether the coordinate value is incremented or decremented) is converted to the first dibit 16 number, the first dibit 16 number is carried to the lower two dibit 16 numbers if the value is greater than 256, and the second dibit 16 number is 0X00 if less than 256. And when the number of the X pixel points is converted into the third binary 16 number, if the numerical value is greater than 256, carrying to the fourth binary 16 number, and if the numerical value is less than 256, the fourth binary 16 number is 0X 00.
WRITECOM(0x4E)；
WRITEDATA(0x02)；
The refresh point coordinates are initiated for setting the office brush Y.
WRITECOM(0x4F)；
WRITEDATA(0x84)；
WRITEDATA(0x00)；
The refresh point coordinates are initiated for setting the office brush X.
And carrying out local area coordinate positioning through the 4 refreshing point coordinates to carry out local refreshing.
Claims (4)
1. A method for debugging the local refreshing and fast refreshing driving waveforms of a bicolor and tricolor electronic paper module comprises the electronic paper module, an integrated circuit and a driving program;
the electronic paper module comprises a double-color electronic paper module and a three-color electronic paper module;
the driving program provides a positioning signal and a waveform signal for the integrated circuit, and the positioning signal controls the integrated circuit to refresh in a specific area of the electronic paper module; the waveform signal enables components on the integrated circuit to form positive and negative voltages for a certain time on the electronic paper module, further drives charged particles on the electronic paper module to move up and down, and finally refreshes and displays different colors, wherein the waveform signal comprises a positive and negative voltage section and a no-voltage section for driving the charged particles to move up and down;
the method for debugging the locally refreshed driving waveform is that a driving program is used for sending a positioning signal of an electronic paper module to an integrated circuit, so that the waveform signal is refreshed in a specific area of the electronic paper module;
the quick refreshing driving waveform debugging method changes the original repeatedly refreshed positive and negative voltage sections of the waveform signal into voltage-free sections through the positioning signal, further increases the voltage-free sections of the waveform signal or reduces the positive and negative voltage sections of the waveform signal, shortens the driving time of the waveform signal and further quickly updates the picture; the repeated refreshing refers to one lifting moving cycle of charged particles in one refreshing process;
the charged particles of the two-color electronic paper module and the charged particles of the three-color electronic paper module can be charged particles of each color component; the method comprises the steps of local refreshing and fast refreshing of a black-and-white double-color electronic paper module, wherein a plurality of waveform signals form a waveform signal schematic diagram, the waveform signal schematic diagram comprises a black-and-black stage, a black-and-white stage, a white-and-black stage and a white-and-white stage, the black-and-black stage and the white-and-white stage are free of waveform signals, and the fast refreshing of the black-and-white double-color electronic paper module at one time refers to the black-and-white stage and the white-and-black stage of the waveform signals executed; the one-time partial refreshing of the black-white double-color electronic paper module refers to that after a drive program sends an electronic black-white double-color electronic paper module positioning signal to an integrated circuit, a black-white stage and a white-black stage of a waveform signal are executed in a specific area of the black-white double-color electronic paper module; the method comprises the steps of local refreshing of a black-white-red electronic paper module and rapid refreshing of a driving waveform, wherein a plurality of waveform signals form a waveform signal schematic diagram, the waveform signal schematic diagram comprises a black, white and red three-color mutual change stage, a black-black stage, a white stage and a red-red stage, the black-black stage, the white stage and the red-red stage are free of waveform signals, and the one-time rapid refreshing of the black-white-red electronic paper module refers to the execution of the white-black stage, the red-black stage, the black-white stage, the red-white stage, the black-red stage and the white-red stage of the waveform signals by the black-white-red electronic paper; the one-time partial refreshing of the black-white-red electronic paper module refers to that the black-white electronic paper module executes the black-white stage and the white-black stage of the waveform signal, then the driving program sends a red electronic paper module positioning signal to the integrated circuit, and the black-red stage and the white-red stage of the waveform signal are executed in a specific area of the black-white-red electronic paper module.
2. The method for debugging the driving waveform for the partial refresh and the fast refresh of the bicolor and tricolor electronic paper module as claimed in claim 1, wherein the voltage value of the waveform signal in the black and white phase is-15V, and the voltage value of the waveform signal in the white and black phase is + 15V.
3. The method for debugging the driving waveform for the partial refresh and the fast refresh of the two-color and three-color electronic paper module according to claim 1, wherein the voltage values of the waveform signals in the black-and-white stage and the red-and-white stage are-15V, the voltage values of the waveform signals in the white-and-black stage and the red-and-black stage are +15V, and the voltage values of the waveform signals in the black-and-red stage and the white-and-red stage are + 4V- + 10V.
4. The method for debugging the driving waveform for the partial refresh and the fast refresh of the bicolor and tricolor electronic paper module as claimed in claim 3, wherein the waveform signals of the black-red stage and the white-red stage drive the red charged particles to move up and down, and the displayed red optical value reaches an L value >30 and an A value > 42.
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| CN110189711B (en) * | 2019-05-14 | 2021-05-11 | 江西兴泰科技有限公司 | Waveform debugging method for shortening black, red and white three-color refreshing time |
| CN110889849B (en) * | 2019-12-11 | 2023-04-11 | 电子科技大学中山学院 | Method for measuring and calculating black and white refreshing time of electronic paper |
| CN111951738A (en) * | 2020-07-15 | 2020-11-17 | 江西兴泰科技有限公司 | Low-power-consumption driving method for electronic paper product |
| CN113920952B (en) * | 2021-10-20 | 2023-03-14 | 京东方科技集团股份有限公司 | Electronic paper debugging method, electronic paper, debugging system and equipment |
| CN114639354B (en) * | 2022-02-24 | 2024-04-12 | 大连龙宁科技有限公司 | Driving method of electronic paper module with double display modes |
| CN115359761B (en) * | 2022-08-16 | 2023-07-18 | 广州文石信息科技有限公司 | Ink screen display control method and device based on key frames |
| CN116994532B (en) * | 2023-09-22 | 2023-12-15 | 汉朔科技股份有限公司 | Display content updating method, device, equipment and medium |
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