Electronic ink screen refreshing method and device and electronic equipment
By generating 8-bit grayscale image templates and weighted processing of TCON controllers, the complex and flickering problems of color electronic paper refresh process are solved, and efficient and flexible screen refresh and user-defined effects are achieved.
Patent Information
- Application Number
- CN202510705678.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-29
- Publication Date
- 2025-08-08
AI Technical Summary
The refresh process of existing color electronic paper is complicated, the refresh time is long, and the screen flickers seriously, affecting the user experience.
By adjusting the grayscale values of different regions, defining the local phase offset intensity, generating an 8-bit grayscale image template, combining the TCON controller for weighting processing and voltage timing lookup table mapping, the screen refreshes according to preset timing.
It simplifies the implementation of user-defined transition effects, improves the resolution of transition effects and the flexibility of screen refresh, reduces system power consumption and hardware dependence, reduces screen flicker, and improves user experience.
Smart Images

Figure CN120452380A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of electronic ink screen display, and in particular to an electronic ink screen refreshing method, device, and electronic device. Background Art
[0002] With the rapid advancement of e-ink display technology and manufacturing techniques, e-ink displays are moving towards true color, large screen sizes, and low costs. In particular, breakthroughs in multi-color ink particle technology in recent years have led to the emergence of numerous e-ink displays with quality comparable to color printing, such as Eink Taiwan's latest Spectra6, Gallery, and Prism series of e-paper displays. These displays utilize enhanced color spectrum and advanced color imaging algorithms to provide full-color displays, enhancing product advertising and marketing effectiveness.
[0003] However, the core of these new technologies is to achieve true color presentation by driving microcapsules or microcups of multiple colors with different charges. Compared with the black and white e-paper in the past, the driving process of color e-paper has become more complicated. It takes a longer refresh time to update and display a frame of image. Viewers need to wait patiently for several seconds or even dozens of seconds to see the updated image. Moreover, during the image update driving process, microcapsules of various colors need to change positions frequently, causing the entire screen to flicker severely during the update process, seriously affecting the user experience of such products. Summary of the Invention
[0004] The purpose of the present invention is to provide an electronic ink screen refresh method, device, and electronic device. By adjusting the grayscale values of different areas to define the local phase shift intensity, no programming or hardware code modification is required. Only high grayscale values need to be set in the center area of the image and low grayscale values need to be set in the edge area. The template can be automatically parsed and the screen can be driven to refresh according to a preset timing, aiming to solve the problems in the prior art.
[0005] The present invention is implemented as follows: a method for refreshing an electronic ink screen is applied to an electronic device including an electronic ink screen, specifically comprising the following steps:
[0006] S101: Receive a designed image refresh transition effect transmitted by a control terminal, generate a transition template of effect data based on the image refresh transition effect, and define the transition template as an 8-bit grayscale image;
[0007] S102: Corresponding the grayscale value of each pixel in the transition template to a phase offset value of 0-255, and then importing the transition template into the TCON controller of the electronic ink screen;
[0008] S103: reading pixel color data of the current area when the screen is refreshed, and performing weighted processing on the pixel color data in combination with the phase offset value of the corresponding area in the transition template;
[0009] S104: Determine a driving voltage according to the weighted phase offset value through a predefined voltage timing lookup table, and send the driving voltage to the electronic ink screen to complete a partial refresh operation.
[0010] Furthermore, in S101, a transition template of effect data is generated by refreshing the image transition effect, including:
[0011] Generating the transition template by using a general graphic editing tool;
[0012] User-defined transition effects can be achieved without modifying the hardware control code, making it convenient for user terminals to complete the generation and transition of customized templates without relying on the device.
[0013] Furthermore, in S103, weighted processing is performed on the pixel color data, including:
[0014] Read the original color data of the pixel from the designated area of the electronic ink screen, and simultaneously extract the phase offset value of the corresponding pixel position from the imported transition template, and determine the timing adjustment weight coefficient of the phase offset value for the current pixel according to the preset weight distribution rule;
[0015] performing a mathematical operation on the pixel color data and the corresponding phase offset value, performing a multiplication or convolution operation on a luminance component or a chrominance component of the pixel color data and the phase offset value to generate an intermediate phase adjustment parameter;
[0016] The intermediate phase adjustment parameters are normalized and constrained to a predefined timing phase range, and then the normalized phase parameters are mapped to specific driving voltage waveform parameters through a voltage timing lookup table to control the movement timing of the ink particles.
[0017] Furthermore, in S104, the driving voltage is determined by using a predefined voltage timing lookup table, and the driving voltage is sent to the electronic ink screen, including:
[0018] Establish a mapping relationship library between phase offset values 0-255 and drive voltage waveform parameters through pre-experimental calibration or theoretical model derivation. The drive voltage waveform includes a combination of voltage amplitude, pulse width, and switching timing.
[0019] During the screen refresh process, the corresponding driving voltage waveform parameters, including the timing sequence of the forward driving voltage and the reverse driving voltage, are indexed from the mapping relationship library according to the weighted phase offset value;
[0020] The driving voltage waveform parameters obtained by the index are converted into timing control signals and loaded to the pixel electrodes of the electronic ink screen at a preset refresh frequency. The directional movement of the ink particles is controlled by the timing changes of the electric field to achieve a smooth transition effect of the target grayscale.
[0021] Furthermore, the hardware architecture of the TCON controller includes any one or a combination of FPGA, ARM, SOC, and MCU.
[0022] Furthermore, the electronic ink screen refreshing method includes:
[0023] The template of the new image is spread out in all directions according to the concentric circles;
[0024] The pixels in the center area are at zero offset and start updating the image first. The pixels in the first ring area around the center area are refreshed after a delay of one phase beat. The transition effect is that the image is refreshed starting from the center.
[0025] The changes in color spread out dynamically like ripples on water until the new picture is updated.
[0026] Furthermore, the electronic ink screen refreshing method includes:
[0027] Inside the TCON controller, a corresponding phase deviation pointer is generated based on the phase offset value 0-255 of the pixel in the imported transition template. The pointer is used to index the pre-stored drive waveform table, and each phase offset value corresponds to a set of independent waveform timing parameters;
[0028] The traditional single lookup table logic based on pixel color values is restructured into a dual dynamic indexing mechanism that combines pixel color data and a phase deviation pointer. The basic waveform table is located according to the pixel color, and the index position is offset by the phase deviation pointer to obtain the target drive waveform parameters after phase adjustment.
[0029] The target driving waveform parameters obtained by the table lookup are calculated for timing phase offset compensation to generate the final driving signal, which is then output to the pixel electrode of the electronic ink screen according to the refresh cycle through the timing control module of TCON to achieve the local refresh effect of template drive.
[0030] Compared with the prior art, the electronic ink screen refreshing method, device, and electronic device provided by the present invention have the following beneficial effects:
[0031] 1. Define the intensity of local phase shifts by adjusting the grayscale values of different areas. No programming or hardware code modification is required. Simply set a high grayscale value in the center of the image and a low grayscale value at the edges. The system automatically parses the template and drives the screen to refresh according to the preset timing. This is simplified to graphical operations, allowing ordinary designers and even end users to independently complete template design, completely breaking away from technical dependence on equipment suppliers. The 256-level phase shift grayscale mapping mechanism significantly improves the resolution of transition effects, supporting a variety of effects from smooth gradients to complex dynamic textures.
[0032] 2. The implementation of the TCON controller does not rely on a specific hardware architecture. It can be quickly ported by simply modifying the firmware interface according to the target platform, significantly reducing system power consumption. In scenarios with high refresh rate requirements, the system can switch to the FPGA platform to improve timing control accuracy. Through the predefined voltage timing lookup table, the system does not need to calculate the drive waveform in real time. It only needs to index the LUT according to the weighted phase offset value to obtain the voltage parameters, greatly reducing the real-time calculation load. In addition, the template-based area division mechanism can dynamically select local or global refresh mode, extending battery life and reducing the risk of screen ghosting.
[0033] An electronic ink screen refreshing device, used to execute the above-mentioned electronic ink screen refreshing method, the device comprising:
[0034] A transition template generation module is used to generate or import an 8-bit grayscale image and map the pixel grayscale values in the image to a phase offset value of 0-255;
[0035] a TCON controller connected to the transition template generation module, configured to receive the phase offset value, and perform weighted calculation based on the pixel color data of the current refresh area and the corresponding phase offset value to generate a phase-adjusted driving waveform parameter;
[0036] The driving execution module is connected to the TCON controller and the pixel electrodes of the electronic ink screen, and is used to convert the driving waveform parameters into timing voltage signals and output them to the screen to control the timing of ink particle movement.
[0037] Furthermore, the TCON controller includes:
[0038] A dual-dimensional table lookup module stores a basic driving waveform table and a phase offset correction table, configured to index the basic waveform according to pixel color data and dynamically adjust the index position by the phase offset value to obtain the corrected waveform parameters;
[0039] The timing superposition module is used to perform timing phase compensation on the corrected waveform parameters and generate a driving signal with local delay or pulse width adjustment to achieve the transition effect defined by the template.
[0040] An electronic ink screen refreshing electronic device includes a storage device and a processor, wherein the storage device is used to store a computer program, and the processor runs the computer program to enable the electronic ink screen refreshing electronic device to execute the above-mentioned electronic ink screen refreshing method. BRIEF DESCRIPTION OF THE DRAWINGS
[0041] Figure 1 This is a schematic flow chart of a method for refreshing an electronic ink screen proposed in the present invention;
[0042] Figure 2 This is a schematic block diagram of the process of receiving a designed image refresh transition effect transmitted by a control terminal and generating a transition template of effect data through the image refresh transition effect in an electronic ink screen refresh method proposed by the present invention;
[0043] Figure 3 This is a logical operation block diagram of an electronic ink screen refresh method proposed by the present invention;
[0044] Figure 4 This is a schematic diagram of the principle of Example 1 of an electronic ink screen refresh method proposed by the present invention;
[0045] Figure 5 This is a logical operation block diagram of Example 2 of an electronic ink screen refresh method proposed by the present invention. DETAILED DESCRIPTION
[0046] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0047] The implementation of the present invention is described in detail below with reference to specific embodiments.
[0048] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "up", "down", "left", "right", etc. indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0049] Example 1
[0050] Reference Figure 1-3As shown, a method for refreshing an electronic ink screen is applied to an electronic device including an electronic ink screen, and specifically includes the following steps:
[0051] S101: Receive a designed image refresh transition effect transmitted by a control terminal, generate a transition template of effect data based on the image refresh transition effect, and define the transition template as an 8-bit grayscale image;
[0052] Among them, the transition template for generating effect data through image refresh transition effect includes:
[0053] Generate transition templates through common graphic editing tools;
[0054] User-defined transition effects can be achieved without modifying the hardware control code, making it convenient for user terminals to complete the generation and transition of customized templates independently of the device;
[0055] S102: Corresponding the grayscale value of each pixel in the transition template to a phase offset value of 0-255, and then importing the transition template into the TCON controller of the electronic ink screen;
[0056] S103: reading pixel color data of the current area when the screen is refreshed, and performing weighted processing on the pixel color data in combination with the phase offset value of the corresponding area in the transition template;
[0057] The weighted processing of pixel color data includes:
[0058] Read the original color data of the pixel from the specified area of the electronic ink screen, and simultaneously extract the phase offset value of the corresponding pixel position from the imported transition template. According to the preset weight distribution rule, determine the timing adjustment weight coefficient of the phase offset value for the current pixel;
[0059] Performing a mathematical operation on the pixel color data and the corresponding phase offset value, performing a multiplication or convolution operation on the luminance component or the chrominance component of the pixel color data and the phase offset value to generate an intermediate phase adjustment parameter;
[0060] Normalize the intermediate phase adjustment parameters to constrain them to a predefined timing phase range, and then map the normalized phase parameters to specific drive voltage waveform parameters using a voltage timing lookup table to control the movement timing of the ink particles.
[0061] S104: Determine a driving voltage based on the weighted phase offset value using a predefined voltage timing lookup table, and send the driving voltage to the electronic ink screen to complete a partial refresh operation;
[0062] The driving voltage is determined by a predefined voltage timing lookup table, and the driving voltage is sent to the electronic ink screen, including:
[0063] Through pre-experimental calibration or theoretical model derivation, a mapping relationship library between phase offset values 0-255 and driving voltage waveform parameters is established. The driving voltage waveform includes a combination of voltage amplitude, pulse width and switching timing;
[0064] During the screen refresh process, the corresponding driving voltage waveform parameters, including the timing sequence of the forward driving voltage and the reverse driving voltage, are indexed from the mapping relationship library according to the weighted phase offset value;
[0065] The driving voltage waveform parameters obtained by the index are converted into timing control signals and loaded into the pixel electrodes of the electronic ink screen at a preset refresh frequency. The directional movement of ink particles is controlled by the timing changes of the electric field to achieve a smooth transition effect of the target grayscale. The local phase shift intensity is defined by adjusting the grayscale values of different areas. No programming or hardware code modification is required. Only high grayscale values are set in the center area of the image and low grayscale values are set in the edge area. The template can be automatically parsed and the screen can be driven to refresh according to the preset timing. The operation is simplified to graphical operations. Ordinary designers and even end users can complete the template design independently, completely getting rid of the technical dependence on equipment suppliers. The 256-level phase shift grayscale mapping mechanism significantly improves the resolution of the transition effect and can support a variety of effects from smooth gradients to complex dynamic textures.
[0066] In this embodiment, the hardware architecture of the TCON controller includes any one or a combination of FPGA, ARM, SOC, and MCU.
[0067] Reference Figure 4 The electronic ink screen refresh method of this embodiment 1 specifically includes:
[0068] The template of the new image is spread out in all directions according to the concentric circles;
[0069] The pixels in the center area are at zero offset and start updating the image first. The pixels in the first ring area around the center area are refreshed after a delay of one phase beat. The transition effect is that the image is refreshed starting from the center.
[0070] The color changes spread dynamically around like ripples on water until the new image is updated. The intensity of the local phase shift is defined by adjusting the grayscale values of different areas. No programming or hardware code modification is required. Simply set a high grayscale value in the center of the image and a low grayscale value at the edge. The template is automatically parsed and the screen is driven to refresh according to the preset timing.
[0071] By simplifying the operation to graphical operations, ordinary designers and even end users can complete template design independently, completely getting rid of the technical dependence on equipment suppliers. The grayscale mapping mechanism with 256 levels of phase shift significantly improves the resolution of transition effects and can support a variety of effects from smooth gradients to complex dynamic textures.
[0072] Example 2
[0073] Reference Figure 5 As shown, the electronic ink screen refreshing method of embodiment 2 specifically includes:
[0074] Inside the TCON controller, the corresponding phase deviation pointer is generated according to the phase offset value 0-255 of the pixel in the imported transition template. The pointer is used to index the pre-stored drive waveform table, and each phase offset value corresponds to a set of independent waveform timing parameters;
[0075] The traditional single lookup table logic based on pixel color values is restructured into a dual dynamic indexing mechanism that combines pixel color data and a phase deviation pointer. The basic waveform table is located according to the pixel color, and the index position is offset by the phase deviation pointer to obtain the target drive waveform parameters after phase adjustment.
[0076] The target drive waveform parameters obtained by table lookup are compensated for the timing phase offset to generate the final drive signal. The final drive signal is then output to the pixel electrodes of the electronic ink screen according to the refresh cycle through the timing control module of TCON, achieving the local refresh effect of template drive.
[0077] The technical solution of this embodiment significantly improves the flexibility and convenience of user-defined transition effects and lowers the technical threshold. The refresh transition effects of traditional electronic ink screens are usually implemented by equipment suppliers through code solidification, and users cannot flexibly adjust them according to actual scene requirements. For example, in scenarios such as dynamic billboards and e-book page turning, users often need different transition effects (such as gradient erasing, local ripple diffusion, etc.), but the traditional method requires suppliers to rewrite the code and update the firmware, which has a long development cycle, high cost, and is difficult to meet personalized needs. The present invention, by abstracting the transition effect into an 8-bit grayscale image template (grayscale value 0-255 corresponds to 256 levels of phase offset), transforms complex phase timing control into an intuitive graphic editing problem, achieving the following breakthrough advantages:
[0078] Enhanced user-friendly design capabilities: Users can directly edit grayscale images using common graphics tools such as Photoshop and GIMP, defining the intensity of local phase shifts by adjusting the grayscale values of different areas without any programming or hardware code modification. For example, to achieve a "center-to-surround" transition effect, users simply set a high grayscale value (large phase shift) in the center of the image and a low grayscale value (small phase shift) at the edges. The system will then automatically interpret the template and drive the screen to refresh according to the preset timing.
[0079] The technical threshold is significantly lowered: Traditional methods require mastery of hardware description languages (such as Verilog) or embedded development skills, but this invention simplifies the technical implementation into graphical operations. Ordinary designers and even end users can independently complete template design, completely breaking away from the technical dependence on equipment suppliers. For example, e-book manufacturers can directly have their UI design team create a variety of page-turning animation templates to quickly adapt to different reading scenarios without waiting for supplier firmware updates;
[0080] Diversified and refined dynamic effects: A 256-level phase-shifted grayscale mapping mechanism significantly improves the resolution of transition effects, supporting a variety of effects from smooth gradients to complex dynamic textures. For example, in medical display scenarios, grayscale templates can be used to achieve seamless coexistence of local high-refresh rate areas (such as electrocardiogram waveforms) and static areas (such as background text), balancing display smoothness with low power consumption.
[0081] Second point: high hardware compatibility, strong scalability, adaptability to multiple platforms and optimized resource utilization;
[0082] Traditional E-ink screen control solutions are often tied to specific hardware architectures (such as dedicated ASICs or FPGAs), resulting in high upgrade costs and difficulty in cross-platform migration. However, this invention decouples transition template analysis from drive voltage generation logic and implements phase-voltage mapping using a lookup table. While ensuring refresh performance, it offers the following core advantages:
[0083] Cross-hardware platform compatibility: The implementation of the TCON controller does not rely on a specific hardware architecture. It can be quickly ported by simply modifying the firmware interface according to the target platform (such as FPGA, ARM, MCU, etc.). For example, in low-power scenarios, the MCU controller can be used to parse the template and drive the screen, significantly reducing system power consumption; while in scenarios with high refresh rate requirements, the FPGA platform can be switched to improve timing control accuracy. This feature significantly extends the life cycle of the device and avoids system obsolescence due to hardware iterations.
[0084] Optimized resource usage and computing efficiency: By pre-defining the voltage timing lookup table (LUT), the system no longer needs to calculate the driving waveform in real time. Instead, it can obtain the voltage parameters by indexing the LUT based on the weighted phase offset value, significantly reducing the real-time computing load. For example, even on the low-computing power ARM Cortex-M series chips, millisecond-level response can still be achieved, meeting the fast refresh requirements of devices such as electronic price tags and smart watches.
[0085] Intelligent coordination of local refresh and global refresh: Based on the template-based area division mechanism, the system can dynamically select local or global refresh mode. For example, in an e-paper reader, only the text update area (such as the page turning part) is refreshed with a high phase offset, while the remaining areas are kept static. Compared with the traditional global refresh solution, it can reduce the number of driving voltage switching by more than 50%, thereby extending battery life and reducing the risk of screen ghosting. In addition, this mechanism has been verified by the FPGA platform and can be seamlessly extended to other hardware, providing manufacturers with a "one-time development, multi-platform deployment" technical path;
[0086] In summary, by template-based and graphical transition effects and combining them with cross-platform hardware adaptation solutions, we not only solve the industry problems of user customization and hardware compatibility, but also achieve all-round optimization in terms of power consumption, display quality and development efficiency, providing core technical support for the large-scale application of electronic ink screens in the fields of Internet of Things, smart wearables, digital signage, etc.
[0087] An electronic ink screen refresh device, for executing the aforementioned electronic ink screen refresh method, comprises: a transition template generation module, for generating or importing an 8-bit grayscale image and mapping pixel grayscale values in the image to phase offset values ranging from 0 to 255; a TCON controller, connected to the transition template generation module and configured to receive the phase offset value and perform a weighted calculation based on pixel color data of a current refresh area and the corresponding phase offset value to generate phase-adjusted driving waveform parameters; and a drive execution module, connected to the TCON controller and pixel electrodes of the electronic ink screen, for converting the driving waveform parameters into a timing voltage signal and outputting it to the screen to control the timing of ink particle movement. Due to the limitations of the refresh mechanism, traditional refresh processes for electronic ink screens, especially those using various multi-color capsule technologies, produce noticeable, continuous flickering of the entire screen lasting from several seconds to tens of seconds. By externally inputting a transition template, different pixel areas are triggered to refresh the screen according to hundreds of pre-set sub-waveforms with different phases. This can optimize the flickering during screen refresh, solve the problem of excessive full-screen flicker caused by refreshes, and incorporate rich, vivid, and dynamic transition effects between images, enhancing the user experience.
[0088] In an embodiment, the TCON controller includes: a two-dimensional table lookup module, which stores a basic driving waveform table and a phase offset correction table, and is configured to index the basic waveform according to pixel color data and dynamically adjust the index position through the phase offset value to obtain the corrected waveform parameters; a timing superposition module, which is used to perform timing phase compensation on the corrected waveform parameters and generate a driving signal with local delay or pulse width adjustment to achieve the transition effect defined by the template.
[0089] Regarding the common refresh method in the industry, the entire screen will flicker when the image transitions to the next one, which is not user-friendly. The operating logic of this device is as follows:
[0090] The grayscale image template is imported into the driver controller (TCON), and during the screen refresh process, the original color data of the target pixel is read according to the normal timing;
[0091] Based on the template, a phase offset value corresponding to the current pixel is obtained, and an index pointer of a preset waveform lookup table is dynamically corrected to obtain voltage waveform data after the phase offset;
[0092] The pixel electrodes are driven in stages according to the corrected voltage waveform data, so that the pixel refresh timings of adjacent annular areas have a phase difference, achieving a ripple-like transition effect without full-screen flicker.
[0093] An electronic device for refreshing an electronic ink screen comprises a storage device and a processor, wherein the storage device is used to store a computer program, and the processor runs the computer program to enable the electronic device for refreshing the electronic ink screen to execute the above-mentioned electronic ink screen refreshing method. The implementation of the TCON controller does not rely on a specific hardware architecture, and only requires modifying the firmware interface according to the target platform for rapid porting, significantly reducing system power consumption. In scenarios with high refresh rate requirements, the system can switch to an FPGA platform to improve timing control accuracy. By using a predefined voltage timing lookup table, the system does not need to calculate the drive waveform in real time, but only needs to index the LUT according to the weighted phase offset value to obtain the voltage parameters, greatly reducing the real-time computing load. In addition, based on the template-based area division mechanism, the system can dynamically select local or global refresh mode, extending battery life and reducing the risk of screen ghosting.
[0094] The transition template generation module can generate custom geometric shapes, such as concentric circles, waves, etc.
[0095] In this embodiment, the entire operation process can be controlled by a computer to provide signal feedback to implement the steps in sequence. These are all conventional knowledge of current automated control and will not be described in detail in this embodiment.
[0096] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A method for refreshing an electronic ink screen, characterized in that: The method is applied to an electronic device including an electronic ink screen, and specifically includes the following steps: S101: Receive a designed image refresh transition effect transmitted by a control terminal, generate a transition template of effect data based on the image refresh transition effect, and define the transition template as an 8-bit grayscale image; S102: Corresponding the grayscale value of each pixel in the transition template to a phase offset value of 0-255, and then importing the transition template into the TCON controller of the electronic ink screen; S103: reading pixel color data of the current area when the screen is refreshed, and performing weighted processing on the pixel color data in combination with the phase offset value of the corresponding area in the transition template; S104: Determine a driving voltage according to the weighted phase offset value through a predefined voltage timing lookup table, and send the driving voltage to the electronic ink screen to complete a partial refresh operation.
2. The electronic ink screen refresh method according to claim 1, wherein: In S101, a transition template for effect data is generated by refreshing the image transition effect, including: Generating the transition template by using a general graphic editing tool; User-defined transition effects can be achieved without modifying the hardware control code, making it convenient for user terminals to complete the generation and transition of customized templates without relying on the device.
3. The electronic ink screen refresh method according to claim 2, wherein: In S103, weighted processing is performed on the pixel color data, including: Read the original color data of the pixel from the designated area of the electronic ink screen, and simultaneously extract the phase offset value of the corresponding pixel position from the imported transition template, and determine the timing adjustment weight coefficient of the phase offset value for the current pixel according to the preset weight distribution rule; performing a mathematical operation on the pixel color data and the corresponding phase offset value, performing a multiplication or convolution operation on a luminance component or a chrominance component of the pixel color data and the phase offset value to generate an intermediate phase adjustment parameter; The intermediate phase adjustment parameters are normalized and constrained to a predefined timing phase range, and then the normalized phase parameters are mapped to specific driving voltage waveform parameters through a voltage timing lookup table to control the movement timing of the ink particles.
4. The electronic ink screen refresh method according to claim 3, wherein: In S104, a driving voltage is determined by using a predefined voltage timing lookup table, and the driving voltage is sent to the electronic ink screen, including: Establish a mapping relationship library between phase offset values 0-255 and drive voltage waveform parameters through pre-experimental calibration or theoretical model derivation. The drive voltage waveform includes a combination of voltage amplitude, pulse width, and switching timing. During the screen refresh process, the corresponding driving voltage waveform parameters, including the timing sequence of the forward driving voltage and the reverse driving voltage, are indexed from the mapping relationship library according to the weighted phase offset value; The driving voltage waveform parameters obtained by the index are converted into timing control signals and loaded to the pixel electrodes of the electronic ink screen at a preset refresh frequency. The directional movement of the ink particles is controlled by the timing changes of the electric field to achieve a smooth transition effect of the target grayscale.
5. The electronic ink screen refresh method according to claim 4, characterized in that: The hardware architecture of the TCON controller includes any one or a combination of FPGA, ARM, SOC, and MCU.
6. The electronic ink screen refreshing method according to any one of claims 1 to 5, characterized in that: The electronic ink screen refreshing method includes: The template of the new image is spread out in all directions according to the concentric circles; The pixels in the center area are at zero offset and start updating the image first. The pixels in the first ring area around the center area are refreshed after a delay of one phase beat. The transition effect is that the image is refreshed starting from the center. The changes in color spread out dynamically like ripples on water until the new picture is updated.
7. The electronic ink screen refreshing method according to any one of claims 1 to 5, characterized in that: The electronic ink screen refreshing method includes: Inside the TCON controller, a corresponding phase deviation pointer is generated based on the phase offset value 0-255 of the pixel in the imported transition template. The pointer is used to index the pre-stored drive waveform table, and each phase offset value corresponds to a set of independent waveform timing parameters; The traditional single lookup table logic based on pixel color values is restructured into a dual dynamic indexing mechanism that combines pixel color data and a phase deviation pointer. The basic waveform table is located according to the pixel color, and the index position is offset by the phase deviation pointer to obtain the target drive waveform parameters after phase adjustment. The target driving waveform parameters obtained by the table lookup are compensated for the timing phase offset to generate the final driving signal, which is then output to the pixel electrode of the electronic ink screen according to the refresh cycle through the timing control module of TCON to achieve the local refresh effect of template drive.
8. An electronic ink screen refresh device, characterized in that: The device is used to execute the electronic ink screen refreshing method according to any one of claims 1 to 5, comprising: A transition template generation module is used to generate or import an 8-bit grayscale image and map the pixel grayscale values in the image to phase offset values of 0-255; a TCON controller connected to the transition template generation module, configured to receive the phase offset value, and perform weighted calculation based on the pixel color data of the current refresh area and the corresponding phase offset value to generate a phase-adjusted driving waveform parameter; The driving execution module is connected to the TCON controller and the pixel electrodes of the electronic ink screen, and is used to convert the driving waveform parameters into timing voltage signals and output them to the screen to control the timing of ink particle movement.
9. The electronic ink screen refresh device according to claim 8, characterized in that: The TCON controller includes: A dual-dimensional table lookup module stores a basic driving waveform table and a phase offset correction table, configured to index the basic waveform according to pixel color data and dynamically adjust the index position by the phase offset value to obtain the corrected waveform parameters; The timing superposition module is used to perform timing phase compensation on the corrected waveform parameters and generate a driving signal with local delay or pulse width adjustment to achieve the transition effect defined by the template.
10. An electronic device for refreshing an electronic ink screen, comprising a storage device and a processor, wherein the storage device is used to store a computer program, characterized in that: The processor runs the computer program to enable the electronic ink screen refreshing electronic device to execute the electronic ink screen refreshing method according to any one of claims 1 to 5.