An electronic paper printing method and device, a terminal device and a storage medium

Abstract

The application discloses an electronic paper printing method and device, a terminal equipment and a storage medium. The application is applied to a control module of an electronic paper printer, wherein the electronic paper printer further comprises a first roller and at least one row of pixel printing points; the electronic paper printing method comprises the following steps: controlling the first roller to drag the electronic paper to move forward at a first speed; the electronic paper is located between the pixel printing points and the first roller; determining a trigger time point and a trigger voltage of each pixel printing point according to the content to be printed and the first speed; when the current time reaches any trigger time point, inputting the trigger voltage corresponding to the current time to the corresponding pixel printing point, so that an electric field is formed between the triggered pixel printing point and the first roller, the motion of charged particles in the corresponding pixel area of the electronic paper is imaged, and the printing operation of the whole electronic paper is completed. Through the application, the refresh efficiency of the electronic paper can be improved, and the hardware cost required by the refresh operation of the electronic paper can be reduced.

Description

Technical Field

[0001] This application relates to the field of flexible electronic paper, and more particularly to an electronic paper printing method, apparatus, terminal equipment, and storage medium. Background Technology

[0002] Electronic paper (E-paper) is a display technology that allows for repeated writing and display, and is widely used in smart devices, electronic tags, e-books, and other fields. Compared with traditional LCD and OLED displays, electronic paper features low power consumption, wide viewing angles, and no need for a backlight, making it particularly suitable for applications requiring the display of static images or text for extended periods.

[0003] Existing e-paper display readers are often expensive, requiring the embedding of integrated circuit (IC) components in conjunction with the display backplane to drive the e-paper to refresh pixels. The embedded IC driver and the display backplane are often precision electronic devices that cannot withstand large voltage inputs, resulting in a slow pixel refresh rate for the e-paper in the e-paper display reader. In addition, an indium tin oxide (ITO) layer needs to be added to the e-paper to control the electric field of the pixels in the e-paper display, making the overall cost of the e-paper display reader too high and also affecting the portability and ease of use of e-paper.

[0004] Therefore, improving the efficiency of pixel refresh in electronic paper and reducing the cost of electronic paper refresh are technical problems that need to be solved. Summary of the Invention

[0005] This application provides an electronic paper printing method, apparatus, terminal device, and storage medium to solve the technical problem of how to improve the efficiency of pixel refresh in electronic paper while reducing the cost required for electronic paper refresh.

[0006] To address the aforementioned technical problems, in a first aspect, embodiments of this application provide an electronic paper printing method applied to the control module of an electronic paper printer, wherein the electronic paper printer further includes: a first roller and at least one row of several pixel printing dots; the electronic paper printing method includes:

[0007] The first roller is controlled to drag the electronic paper forward at a first speed; the electronic paper is located between the pixel printing point and the first roller.

[0008] Based on the content to be printed and the first speed, determine the trigger time and trigger voltage of each pixel printing point;

[0009] When the current time reaches any of the aforementioned trigger time points, the trigger voltage corresponding to the current time is input to the corresponding pixel printing point, so that an electric field is formed between the triggered pixel printing point and the first roller, thereby controlling the movement and imaging of charged particles in the corresponding pixel area of ​​the electronic paper, and completing the printing operation of the entire electronic paper.

[0010] Compared to existing technologies, the embodiments of this application have the following beneficial effects: By inputting voltage to a row of pixel printing dots through an electronic paper printer, an electric field is generated between the pixel printing dots and the first roller, thereby refreshing the pixels in the electronic paper. This eliminates the need to add an ITO layer to each sheet of electronic paper to assist in generating the electric field, reducing the hardware cost of electronic paper products. Simultaneously, by precisely adjusting the speed of the first roller and the applied voltage, only one row of pixel printing dots is needed to refresh the entire sheet of electronic paper, further reducing the hardware cost required for refreshing the pixels of electronic paper products. Finally, by separating the electronic paper refreshing process, the impact of applying a large voltage during the refreshing process on precision electronic components is avoided, thereby effectively improving the refreshing efficiency of electronic paper.

[0011] In some embodiments of the first aspect of this application, determining the trigger time point and trigger voltage of each pixel printing point according to the content to be printed and the first speed includes:

[0012] The trigger time points of the pixel printing points are determined according to the first speed;

[0013] Based on the content that the pixel printing point needs to print when it reaches each of the trigger time points, determine the direction in which the electric field needs to be formed between the pixel printing point and the first roller when each of the trigger time points arrives;

[0014] Based on the time interval between two consecutive trigger time points, determine the strength of the electric field that needs to be formed between the pixel print point and the first roller when the first of the two consecutive trigger time points is reached;

[0015] Based on the direction and intensity of the electric field, determine the trigger voltage that the pixel printing point needs to output when it reaches the corresponding trigger time point.

[0016] Compared to existing technologies, the above embodiments have the following advantages: To ensure that the initial speed of the roller dragging the electronic paper matches the refresh speed of the electronic paper, and to guarantee the accuracy of the electronic paper refresh, the input voltage needs to be adjusted to generate a suitable electric field. Therefore, the trigger time point for the refresh of each row of pixels in the electronic paper is determined by the speed at which the first roller drags the electronic paper. Furthermore, based on the content to be printed, the direction of movement of charged particles within the corresponding pixel area can be determined, thereby determining the direction of the electric field to be applied. Finally, based on the time interval between two consecutive trigger time points, the minimum velocity of the charged particles can be determined, thereby determining the electric field strength. Once the direction and strength of the electric field to be applied are known, the input trigger voltage can be determined, thus ensuring the accuracy of the electronic paper refresh even when using only one row of pixel printheads.

[0017] In some embodiments of the first aspect of this application, determining the direction in which an electric field needs to be formed between the pixel printing point and the first roller when each trigger time point is reached, based on the content that needs to be printed by the pixel printing point at each trigger time point, includes:

[0018] Based on the content that needs to be printed when the pixel print point reaches the trigger time point, determine whether the first pixel area corresponding to the pixel print point needs to display ink dots at this time.

[0019] If necessary, a first trigger voltage is input to the pixel printing point to form a first electric field in the first pixel region;

[0020] If not required, a second trigger voltage is input to the pixel printing point to form a second electric field in the first pixel region; the first electric field and the second electric field are in opposite directions.

[0021] Compared to existing technologies, the above embodiments have the following advantages: Electronic paper typically contains two colors of charged particles. By applying an electric field in the corresponding direction, charged particles of the same color will move simultaneously in the corresponding direction, thereby displaying the content to be printed. Based on the above principle, the direction of the electric field generated by the print head for each pixel at each trigger time point can be pre-set according to the content to be printed, ensuring the accuracy of the printed content obtained through subsequent refreshes.

[0022] In some embodiments of the first aspect of this application, determining the strength of the electric field that needs to be formed between the pixel print point and the first roller when the first of the two consecutive trigger time points is reached, based on the time interval between the two consecutive trigger time points, includes:

[0023] Based on the time interval, determine the second velocity of the charged particle between the pixel print point and the first roller;

[0024] Based on the second speed, the strength of the electric field that needs to be formed between the pixel printing point and the first roller is determined.

[0025] Compared with the prior art, the above embodiments have the following beneficial effects: after knowing the distance that charged particles need to move in the electronic paper, the second speed of the charged particles when they move can be known according to the time interval. After knowing the second speed, the magnitude of the electric field intensity that needs to be applied can be known, thereby determining the magnitude of the trigger voltage that needs to be input subsequently, which improves the consistency between the refresh frequency of each row of pixel areas in the electronic paper and the first speed of the first roller dragging the electronic paper.

[0026] In some embodiments of the first aspect of this application, each pixel printing point is composed of an independent metal line, and the pixel printing points are insulated from each other.

[0027] Compared with the prior art, the above embodiments have the following beneficial effects: each pixel printing point is composed of independent metal lines, and the pixel printing points are kept insulated from each other, preventing mutual interference between two adjacent pixel printing points when a large trigger voltage is input to the pixel printing point. This allows for the input of a higher trigger voltage when printing on electronic paper and increases the first speed at which the first roller drags the electronic paper, thereby improving the refresh efficiency of the electronic paper.

[0028] In some embodiments of the first aspect of this application, the electronic paper consists of a plurality of uniformly arranged electronic paper ink capsules wrapped in two layers of polyimide films.

[0029] Compared with the prior art, the above embodiments have the following advantages: an electric field is generated by the first roller and pixel printhead in an additional independent printer. Therefore, when refreshing electronic paper with this printer, there is no need to add an ITO layer to the electronic paper to assist in generating an electric field. Only a polyimide film for protection needs to be added to the upper and lower layers of the electronic paper ink capsule. This effectively reduces the hardware cost of the electronic paper itself and further improves the portability of the electronic paper.

[0030] In some embodiments of the first aspect of this application, the electronic paper printer further includes a media substrate for embedding the pixel print dots and for supporting the electronic paper.

[0031] Compared with the prior art, the above embodiments have the following beneficial effects: Since the pixel printing point is composed of independent metal lines, embedding the pixel printing point in the substrate can prevent the pixel printing point from wearing out, thereby improving the durability of the pixel printing point.

[0032] Secondly, embodiments of this application also provide an electronic paper printing device, applied to a control module of an electronic paper printer, wherein the electronic paper printer further includes: a first roller and at least one row of several pixel printing dots; the electronic paper printing device includes: a roller control module, a voltage control module, and a voltage output module;

[0033] The first roller control module is used to control the first roller to drag the electronic paper forward at a first speed; the electronic paper is located between the pixel printing point and the first roller.

[0034] The voltage control module is used to determine the trigger time and trigger voltage of each pixel printing point according to the content to be printed and the first speed.

[0035] The voltage output module is used to input the trigger voltage corresponding to the current time to the corresponding pixel printing point when the current time reaches any of the trigger time points, so that an electric field is formed between the triggered pixel printing point and the first roller, so as to control the movement and imaging of charged particles in the corresponding pixel area of ​​the electronic paper, and complete the printing operation of the entire electronic paper.

[0036] Thirdly, this application also provides a terminal device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor executes the computer program to implement the above-described electronic paper printing method.

[0037] Fourthly, this application also provides a computer-readable storage medium, the computer-readable storage medium including a stored computer program, wherein, when the computer program is executed, it controls the device where the computer-readable storage medium is located to perform the above-described electronic paper printing method. Attached Figure Description

[0038] Figure 1 This is a flowchart illustrating an electronic paper printing method provided in some embodiments of this application;

[0039] Figure 2 This is a schematic diagram of the mechanism of an electronic paper printer provided in some embodiments of this application;

[0040] Figure 3 This is a schematic diagram of the printhead structure of an electronic paper printer provided in some embodiments of this application;

[0041] Figure 4 This is a schematic diagram of the structure of an electronic paper provided in some embodiments of this application;

[0042] Figure 5This is a schematic diagram of the structure of an electronic paper printing device provided in some embodiments of this application. Detailed Implementation

[0043] Existing e-paper display readers are often expensive, requiring embedded IC drivers and display backplanes to drive the e-paper to refresh pixels. The embedded IC drivers and display backplanes are often precision electronic components that cannot withstand large voltage inputs, resulting in slow pixel refresh rates in the e-paper display reader. In addition, an ITO layer needs to be added to the e-paper to control the electric field of the pixels in the e-paper display, making the overall cost of the e-paper display reader too high and also affecting the portability and ease of use of e-paper.

[0044] To address the aforementioned technical problems, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0045] Example 1

[0046] Please refer to Figure 1 This application provides an electronic paper printing method, which is applied to the control module of an electronic paper printer. The electronic paper printer further includes a first roller and at least one row of several pixel printing dots.

[0047] Preferably, refer to Figure 2 In some embodiments of this application, the conveying roller (i.e., the first roller) contacts the upper side of the electronic paper. When the conveying roller rotates at a certain speed, it can drag or drive the electronic paper to move at the same speed through the contact point between the two. Therefore, the width of the first roller should be at least equal to the width of the first electronic paper.

[0048] Furthermore, in some embodiments of this application, the electronic paper printer further includes a media substrate for embedding the pixel printing dots and for supporting the electronic paper.

[0049] Preferably, refer to Figure 2 In some embodiments of this application, the substrate that contacts the underside of the electronic paper is a media substrate, in which a printhead the size of a pixel is embedded.

[0050] Since the pixel printing dots are composed of independent metal lines, embedding the pixel printing dots into the substrate can prevent wear of the pixel printing dots, thereby improving their durability.

[0051] Furthermore, in some embodiments of this application, each pixel printing point is composed of an independent metal line, and the pixel printing points are insulated from each other.

[0052] Preferably, refer to Figure 2 In some embodiments of this application, a printer system control circuit (i.e., the control module of an electronic paper printer) is connected below the media substrate. This control circuit is electrically connected to the printhead in the media substrate and also to the conveyor rollers. The electrical connection between the control circuit and the printhead is to input a trigger voltage to the independent metal line corresponding to each pixel print point; the electrical connection with the conveyor rollers is to provide a stable output voltage so that an electric field can be formed between the conveyor rollers and each pixel print point.

[0053] Preferably, refer to Figure 3 This is a schematic diagram of the printhead structure of an electronic paper printer provided in some embodiments of this application, corresponding to... Figure 2 The printhead in the electronic paper consists of several pixel-sized sections, each representing a single pixel. The width of the printhead should be at least equal to the width of the electronic paper.

[0054] Each pixel is formed by independent metal circuits, and the pixels are kept insulated from each other. This prevents two adjacent pixels from interfering with each other when a large trigger voltage is applied to the pixel. As a result, when printing on electronic paper, a higher trigger voltage can be applied to generate a stronger electric field, thereby increasing the initial speed of the first roller dragging the electronic paper and improving the refresh efficiency of the electronic paper.

[0055] Figure 1 The electronic paper printing method shown includes S10 to S30, specifically as follows:

[0056] S10: Control the first roller to drag the electronic paper forward at a first speed; the electronic paper is located between the pixel printing point and the first roller.

[0057] Furthermore, in some embodiments of this application, the electronic paper is composed of a plurality of uniformly arranged electronic paper ink capsules wrapped in two layers of polyimide films.

[0058] Preferably, refer to Figure 4 The diagram below shows a structural schematic of an electronic paper provided in some embodiments of this application. The electronic paper ink capsule is encapsulated in two layers of PI material and is evenly distributed in the two layers of PI material. The PI material is mainly to protect the ink capsule from damage during the printing operation.

[0059] The electric field is generated by the first roller and pixel printhead in an additional independent printer. Therefore, when refreshing electronic paper with this printer, there is no need to add an ITO layer to the electronic paper to assist in generating the electric field. Only a polyimide film for protection needs to be added to the upper and lower layers of the electronic paper ink capsule. This effectively reduces the hardware cost of the electronic paper itself and further improves its portability.

[0060] S20: Determine the trigger time and trigger voltage of each pixel printing point according to the content to be printed and the first speed.

[0061] Preferably, in some embodiments of this application, when the width of the electronic paper is smaller than the width of the print head, at least the pixel printing points in the print head that are in contact with the electronic paper should be identified in order to determine the pixel printing points for which the trigger time point and trigger voltage need to be calculated.

[0062] Furthermore, in some embodiments of this application, determining the trigger time and trigger voltage of each pixel printing point according to the content to be printed and the first speed includes:

[0063] The trigger time points of the pixel printing points are determined according to the first speed;

[0064] Based on the content that the pixel printing point needs to print when it reaches each of the trigger time points, determine the direction in which the electric field needs to be formed between the pixel printing point and the first roller when each of the trigger time points arrives;

[0065] Based on the time interval between two consecutive trigger time points, determine the strength of the electric field that needs to be formed between the pixel print point and the first roller when the first of the two consecutive trigger time points is reached;

[0066] Based on the direction and intensity of the electric field, determine the trigger voltage that the pixel printing point needs to output when it reaches the corresponding trigger time point.

[0067] To ensure that the initial speed of the roller dragging the electronic paper matches the paper's refresh rate, and to guarantee the accuracy of the refresh, the input voltage needs to be adjusted to generate a suitable electric field. Therefore, the speed at which the first roller drags the electronic paper determines the trigger time for refreshing each row of pixels. Further, based on the content to be printed, the direction of movement of charged particles within the corresponding pixel area can be determined, thus defining the direction of the applied electric field. Finally, the minimum velocity of the charged particles can be determined based on the time interval between two consecutive trigger times, thus defining the electric field strength. Once the direction and strength of the applied electric field are known, the input trigger voltage can be determined, ensuring the accuracy of the electronic paper refresh even when using only one row of pixels.

[0068] Preferably, in some embodiments of this application, when determining the intensity of the electric field, it is also necessary to determine the required intensity of the electric field based on the currently printed content. For example, when there are only two types of charged particles in the ink capsule of the electronic paper, the spatial position of the charged particles of different colors in the ink capsule can be changed by altering the intensity and duration of the applied electric field, thereby adjusting the color depth of the pixel area. For instance, by applying a sufficiently strong and long-lasting electric field, the black charged particles in the ink capsule are completely moved towards the display side of the ink capsule, resulting in a completely black pixel area; by applying a weaker and shorter-lasting electric field, the black charged particles are located only in a spatial position closer to the display side of the ink capsule, resulting in a gray pixel area. When there are more types of charged particles in the ink capsule of electronic paper, the charged particles of different colors have different driving voltage values ​​and movement speeds. For example, in black, white and red electronic paper, the black and red charged particles have positive charges, while the white charged particles have negative charges. The black and white particles are driven by a voltage value of ±15V, and the red particles are driven by a voltage value of ±5V. The red particles move slower. Therefore, multiple trigger voltages can be input in a certain order between two trigger time points to adjust the spatial position of the particles of different colors in the ink capsule, thereby controlling the color of the pixel area.

[0069] Furthermore, in some embodiments of this application, determining the direction in which an electric field needs to be formed between the pixel printing point and the first roller when each trigger time point is reached, based on the content that needs to be printed by the pixel printing point at each trigger time point, includes:

[0070] Based on the content that needs to be printed when the pixel print point reaches the trigger time point, determine whether the first pixel area corresponding to the pixel print point needs to display ink dots at this time.

[0071] If necessary, a first trigger voltage is input to the pixel printing point to form a first electric field in the first pixel region;

[0072] If not required, a second trigger voltage is input to the pixel printing point to form a second electric field in the first pixel region; the first electric field and the second electric field are in opposite directions.

[0073] Electronic paper typically contains two colors of charged particles. By applying an electric field in the corresponding direction, charged particles of the same color will move simultaneously in that direction, thus displaying the content to be printed. Based on this principle, the direction of the electric field generated by the print head for each pixel at each trigger time point can be pre-set according to the content to be printed, ensuring the accuracy of the printed content obtained during subsequent refreshes.

[0074] Preferably, in some embodiments of this application, when the ink capsules in the electronic paper contain only black and white charged particles, black particles are positively charged and white particles are negatively charged. During the printing process, after the printer transfers the paper to the rollers and printhead, the printhead outputs a trigger voltage. For example, if a pixel print point forms a voltage difference of +100V with the first roller, the corresponding pixel area is refreshed to black; if a voltage difference of -100V, the corresponding pixel area is refreshed to white. The trigger voltage output by the printhead is coordinated with the conveying speed of the first roller, meaning that after printing one line, the roller drives to refresh to the next line. Similarly, when the ink capsules in the electronic paper contain charged particles of multiple colors, the voltage difference between the pixel print point and the first roller is changed sequentially according to the desired displayed color, meaning that multiple electric fields need to be generated sequentially within a time interval.

[0075] Furthermore, in some embodiments of this application, determining the strength of the electric field that needs to be formed between the pixel printing point and the first roller when reaching the first of the two consecutive triggering time points based on the time interval between the two consecutive triggering time points includes:

[0076] Based on the time interval, determine the second velocity of the charged particle between the pixel print point and the first roller;

[0077] Based on the second speed, the strength of the electric field that needs to be formed between the pixel printing point and the first roller is determined.

[0078] Knowing the distance that charged particles need to move in the electronic paper, the second velocity of the charged particles can be known based on the time interval. Knowing the second velocity further allows us to determine the magnitude of the electric field strength that needs to be applied, thereby determining the magnitude of the trigger voltage that needs to be input subsequently. This improves the consistency between the refresh frequency of each row of pixels in the electronic paper and the first speed at which the first roller drags the electronic paper.

[0079] Preferably, in some embodiments of this application, the electric field strength affects not only the refresh rate but also the accuracy of the printed content. For example, in the refresh process of black-and-white and red-and-white electronic paper, in order to accurately adjust the color display of pixel areas, it is necessary to determine the electric field strength to be applied according to the content to be printed; otherwise, particles that should not be displaced may be displaced, or particles that should be displaced may not be displaced, resulting in errors in the color display of pixel areas. Therefore, it is also necessary to determine the electric field strength according to the content to be printed. Since the characteristics of charged particles in different types of electronic paper are different, this application does not specifically limit the method of adjusting the electric field strength according to the printed content.

[0080] S30: When the current time reaches any of the aforementioned trigger time points, the trigger voltage corresponding to the current time is input to the corresponding pixel printing point, so that an electric field is formed between the triggered pixel printing point and the first roller, thereby controlling the movement and imaging of charged particles in the corresponding pixel area of ​​the electronic paper, and completing the printing operation of the entire electronic paper.

[0081] Preferably, in some embodiments of this application, the refresh rate of the electronic paper can be determined first, and the first speed at which the first roller drags the electronic paper and the trigger time and trigger voltage of each pixel printing point can be further determined based on the refresh rate. This only requires reverse engineering of step S20 in the embodiments of this application.

[0082] In summary, the electronic paper printing method provided in this application has the following beneficial effects: By inputting voltage to a row of pixel printing dots through an electronic paper printer, an electric field is generated between the pixel printing dots and the first roller, thereby refreshing the pixels in the electronic paper. This eliminates the need to add an ITO layer to each sheet of electronic paper to assist in generating the electric field, reducing the hardware cost of electronic paper products. Simultaneously, by precisely adjusting the speed of the first roller and the applied voltage, only one row of pixel printing dots is needed to refresh the entire sheet of electronic paper, further reducing the hardware cost required for refreshing the pixels of electronic paper products. Finally, by isolating the electronic paper refreshing process, the impact of applying a large voltage during the refreshing process on precision electronic components is avoided, thereby effectively improving the refreshing efficiency of the electronic paper.

[0083] Example 2

[0084] refer to Figure 5 This application provides an electronic paper printing device, which is applied to the control module of an electronic paper printer. The electronic paper printer further includes: a first roller and at least one row of several pixel printing dots; the electronic paper printing device includes: a roller control module 11, a voltage control module 12 and a voltage output module 13.

[0085] Furthermore, in some embodiments of this application, the first roller control module 11 is used to control the first roller to drag the electronic paper forward at a first speed; the electronic paper is located between the pixel printing point and the first roller; the voltage control module 12 is used to determine the trigger time point and trigger voltage of each pixel printing point according to the content to be printed and the first speed; the voltage output module 13 is used to input the trigger voltage corresponding to the current time to the corresponding pixel printing point when the current time reaches any of the trigger time points, so that an electric field is formed between the triggered pixel printing point and the first roller, so as to control the movement and imaging of charged particles in the corresponding pixel area of ​​the electronic paper, and complete the printing operation of the entire electronic paper.

[0086] Furthermore, in some embodiments of this application, determining the trigger time point and trigger voltage of each pixel printing point according to the content to be printed and the first speed includes: determining each trigger time point of the pixel printing point according to the first speed; determining the direction of the electric field that needs to be formed between the pixel printing point and the first roller when each trigger time point is reached, based on the content that needs to be printed when the pixel printing point reaches each trigger time point; determining the strength of the electric field that needs to be formed between the pixel printing point and the first roller when the first trigger time point is reached, based on the time interval between two consecutive trigger time points; and determining the trigger voltage that the pixel printing point needs to output when it reaches the corresponding trigger time point, based on the direction and strength of the electric field.

[0087] Furthermore, in some embodiments of this application, determining the direction of the electric field to be formed between the pixel printing point and the first roller when each trigger time point is reached, based on the content to be printed by the pixel printing point at each trigger time point, includes: determining whether the first pixel area corresponding to the pixel printing point needs to display ink dots at this time, based on the content to be printed by the pixel printing point at each trigger time point; if so, inputting a first trigger voltage to the pixel printing point to form a first electric field in the first pixel area; if not, inputting a second trigger voltage to the pixel printing point to form a second electric field in the first pixel area; the directions of the first electric field and the second electric field are opposite.

[0088] Furthermore, in some embodiments of this application, determining the strength of the electric field that needs to be formed between the pixel printing point and the first roller when the first of the two consecutive triggering time points is reached based on the time interval between the two consecutive triggering time points includes: determining the second velocity of the charged particle between the pixel printing point and the first roller based on the time interval; and determining the strength of the electric field that needs to be formed between the pixel printing point and the first roller based on the second velocity.

[0089] Furthermore, in some embodiments of this application, each pixel printing point is composed of an independent metal line, and the pixel printing points are insulated from each other.

[0090] Furthermore, in some embodiments of this application, the electronic paper is composed of a plurality of uniformly arranged electronic paper ink capsules wrapped in two layers of polyimide films.

[0091] Furthermore, in some embodiments of this application, the electronic paper printer further includes a media substrate for embedding the pixel printing dots and for supporting the electronic paper.

[0092] It is understood that the above-described device embodiments correspond to the method embodiments of the present invention. The electronic paper printing device provided by the embodiments of the present invention can implement any one of the method embodiments of the present invention, namely the electronic paper printing method provided in Embodiment 1.

[0093] In summary, the electronic paper printing device provided in this application has the following beneficial effects: By inputting voltage to a row of pixel printing dots through the electronic paper printer, an electric field is generated between the pixel printing dots and the first roller, thereby refreshing the pixels in the electronic paper. This eliminates the need to add an ITO layer to each sheet of electronic paper to assist in generating the electric field, reducing the hardware cost of electronic paper products. Simultaneously, by precisely adjusting the speed of the first roller and the applied voltage, only one row of pixel printing dots is needed to refresh the entire sheet of electronic paper, further reducing the hardware cost required for refreshing the pixels of electronic paper products. Finally, by separating the electronic paper refreshing process, the impact of applying a large voltage during the refreshing process on precision electronic components is avoided, thereby effectively improving the refreshing efficiency of the electronic paper.

[0094] Example 3

[0095] Based on the above embodiments of the electronic paper printing method, another embodiment of this application provides an electronic paper printing terminal device, which includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, it implements the electronic paper printing method of any embodiment of this application.

[0096] For example, in this embodiment, the computer program can be divided into one or more modules, which are stored in the memory and executed by the processor to complete the present application. The one or more modules can be a series of computer program instruction segments capable of performing specific functions, which describe the execution process of the computer program in the electronic paper printing device.

[0097] The electronic paper printing device can be a desktop computer, laptop, handheld computer, or cloud server, etc. The electronic paper printing terminal device may include, but is not limited to, a processor and a memory.

[0098] The processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor. The processor is the control center of the electronic paper printing device, connecting various parts of the device via various interfaces and lines. The memory can be used to store the computer programs and / or modules. The processor implements various functions of the electronic paper printing device by running or executing the computer programs and / or modules stored in the memory, and by calling data stored in the memory. The memory can mainly include a program storage area and a data storage area. The program storage area can store the operating system, at least one application program required for a function, etc.; the data storage area can store data created based on the use of the mobile phone, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as hard disk, memory, plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0099] Example 4

[0100] Based on the above embodiments of the electronic paper printing method, another embodiment of this application provides a storage medium, the storage medium including a stored computer program, wherein, when the computer program is running, it controls the device where the storage medium is located to execute the electronic paper printing method of any embodiment of this application.

[0101] In this embodiment, the storage medium is a computer-readable storage medium, and the computer program includes computer program code, which can be in the form of source code, object code, executable file, or some intermediate form. The computer-readable medium can include any entity or device capable of carrying the computer program code, recording media, USB flash drive, portable hard drive, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the content included in the computer-readable medium can be appropriately added or removed according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electrical carrier signals and telecommunication signals.

[0102] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this application. It should be understood that the above descriptions are merely specific embodiments of this application and are not intended to limit the scope of protection of this application. In particular, it should be noted that any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application for those skilled in the art.

Claims

1. An electronic paper printing method, characterized in that, A control module for an electronic paper printer, wherein the electronic paper printer further includes: a first roller and at least one row of several pixel printing dots; the electronic paper printing method includes: The first roller is controlled to drag the electronic paper forward at a first speed; the electronic paper is located between the pixel printing point and the first roller; the electronic paper does not contain an ITO layer; Based on the content to be printed and the first speed, determine the trigger time and trigger voltage of each pixel printing point; When the current time reaches any of the aforementioned trigger time points, the trigger voltage corresponding to the current time is input to the corresponding pixel printing point, so that an electric field is formed between the triggered pixel printing point and the first roller, thereby controlling the movement and imaging of charged particles in the corresponding pixel area of ​​the electronic paper, and completing the printing operation of the entire electronic paper. The step of determining the trigger time and trigger voltage of each pixel printing point based on the content to be printed and the first speed includes: The trigger time points of the pixel printing points are determined according to the first speed; Based on the content that the pixel printing point needs to print when it reaches each of the trigger time points, determine the direction in which the electric field needs to be formed between the pixel printing point and the first roller when each of the trigger time points arrives; Based on the time interval between two consecutive trigger time points, determine the strength of the electric field that needs to be formed between the pixel print point and the first roller when the first of the two consecutive trigger time points is reached; Based on the direction and intensity of the electric field, determine the trigger voltage that the pixel printing point needs to output when it reaches the corresponding trigger time point; The step of determining the required electric field strength between the pixel print point and the first roller when reaching the first of the two consecutive trigger time points based on the time interval between the two consecutive trigger time points includes: Based on the time interval, determine the second velocity of the charged particle between the pixel print point and the first roller; Based on the second speed, determine the strength of the electric field that needs to be formed between the pixel printing point and the first roller; Each pixel printing point is composed of an independent metal circuit, and each pixel printing point is insulated from the others; the electronic paper printer also includes a media substrate, which is used to embed the pixel printing points and to support the electronic paper.

2. The electronic paper printing method as described in claim 1, characterized in that, The step of determining the direction in which an electric field needs to be formed between the pixel printing point and the first roller when each trigger time point is reached, based on the content that needs to be printed by the pixel printing point at each trigger time point, includes: Based on the content that needs to be printed when the pixel print point reaches the trigger time point, determine whether the first pixel area corresponding to the pixel print point needs to display ink dots at this time. If necessary, a first trigger voltage is input to the pixel printing point to form a first electric field in the first pixel region; If not required, a second trigger voltage is input to the pixel printing point to form a second electric field in the first pixel region; the first electric field and the second electric field are in opposite directions.

3. The electronic paper printing method as described in claim 1, characterized in that, The electronic paper consists of several uniformly arranged electronic paper ink capsules wrapped in two layers of polyimide film.

4. An electronic paper printing device, characterized in that, A control module for an electronic paper printer, wherein the electronic paper printer further includes: a first roller and at least one row of several pixel printing dots; the electronic paper printing device includes: a roller control module, a voltage control module, and a voltage output module; The first roller control module is used to control the first roller to drag the electronic paper forward at a first speed; the electronic paper is located between the pixel printing point and the first roller; the electronic paper does not contain an ITO layer; The voltage control module is used to determine the trigger time and trigger voltage of each pixel printing point according to the content to be printed and the first speed. The voltage output module is used to input the trigger voltage corresponding to the current time to the corresponding pixel printing point when the current time reaches any of the trigger time points, so that an electric field is formed between the triggered pixel printing point and the first roller, so as to control the movement and imaging of charged particles in the corresponding pixel area of ​​the electronic paper, and complete the printing operation of the entire electronic paper. The step of determining the trigger time and trigger voltage of each pixel printing point based on the content to be printed and the first speed includes: The trigger time points of the pixel printing points are determined according to the first speed; Based on the content that the pixel printing point needs to print when it reaches each of the trigger time points, determine the direction in which the electric field needs to be formed between the pixel printing point and the first roller when each of the trigger time points arrives; Based on the time interval between two consecutive trigger time points, determine the strength of the electric field that needs to be formed between the pixel print point and the first roller when the first of the two consecutive trigger time points is reached; Based on the direction and intensity of the electric field, determine the trigger voltage that the pixel printing point needs to output when it reaches the corresponding trigger time point; The step of determining the required electric field strength between the pixel print point and the first roller when reaching the first of the two consecutive trigger time points based on the time interval between the two consecutive trigger time points includes: Based on the time interval, determine the second velocity of the charged particle between the pixel print point and the first roller; Based on the second speed, determine the strength of the electric field that needs to be formed between the pixel printing point and the first roller; Each pixel printing point is composed of an independent metal circuit, and each pixel printing point is insulated from the others; the electronic paper printer also includes a media substrate, which is used to embed the pixel printing points and to support the electronic paper.

5. A terminal device, characterized in that, The device includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor, when executing the computer program, implements an electronic paper printing method as described in any one of claims 1 to 3.

6. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored computer program, wherein, when the computer program is executed, it controls the device on which the computer-readable storage medium is located to perform an electronic paper printing method as described in any one of claims 1 to 3.

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