CN114691003A - Handwritten note display method of ink screen device, ink screen device and storage medium - Google Patents
Handwritten note display method of ink screen device, ink screen device and storage medium Download PDFInfo
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Abstract
The invention discloses a handwritten note display method of ink screen equipment, the ink screen equipment and a storage medium. The method comprises the following steps: displaying a plurality of selection options of handwriting speeds and at least one note color option corresponding to the handwriting speed; identifying a target handwriting speed and a target note color selected by a user; determining a target refreshing mode corresponding to the target handwriting speed; and responding to the note drawing operation of the user, and refreshing the page by adopting a target refreshing mode to display the handwritten note drawn by the target note color. In the scheme, the user can select the target handwriting speed and the target note color which are matched with the requirement of the user according to the sensitivity of the user to the handwriting speed and the note color, so that the differentiation requirements of different users are met; and the refreshing mode adopted by the ink screen equipment is matched with the current user requirement, so that the user experience is improved.
Description
Technical Field
The invention relates to the technical field of information display, in particular to a handwritten note display method of ink screen equipment, the ink screen equipment and a storage medium.
Background
The ink screen device refers to an electronic device using an electronic ink screen (E-ink). The display effect of the electronic ink screen is higher in similarity with paper materials, the defect of light reflection of the traditional liquid crystal display can be avoided, good visual experience can be provided for users, and therefore the electronic ink screen has more applications in electronic book reading and the like.
Many ink screen devices are also provided with handwriting capabilities, and a user can write content on the screen through a corresponding medium (e.g., an electromagnetic pen, etc.). During the process of displaying the handwritten notes of the user, the ink screen device adopts a system default refreshing mode, such as a 16-order refreshing mode. The mode can not meet the differentiation requirements of users, thereby reducing the user experience.
Disclosure of Invention
In view of the above, the present invention has been made to provide a handwritten note display method of an ink screen apparatus, and a storage medium that overcome or at least partially solve the above problems.
According to an aspect of the present invention, there is provided a handwritten note display method of an ink screen device, including:
displaying a plurality of selection options of handwriting speeds and at least one note color option corresponding to the handwriting speed;
identifying a target handwriting speed and a target note color selected by a user; the target note color is one of note colors corresponding to the target handwriting speed;
determining a target refreshing mode corresponding to the target handwriting speed according to the mapping relation between the handwriting speed and the refreshing mode;
and responding to the note drawing operation of the user, refreshing the page by adopting the target refreshing mode to display the handwritten note drawn by the target note color.
According to another aspect of the present invention, there is provided an ink screen apparatus including: the ink screen, the electromagnetic plate, the processor, the memory, the communication interface and the communication bus are communicated with each other through the communication bus;
the electromagnetic plate is used for detecting a handwriting operation instruction generated on the ink screen by the electromagnetic pen,
the memory is configured to store at least one executable instruction that causes the processor to:
displaying a plurality of selection options of handwriting speeds and at least one note color option corresponding to the handwriting speed;
identifying a target handwriting speed and a target note color selected by a user; the target note color is one of note colors corresponding to the target handwriting speed;
determining a target refreshing mode corresponding to the target handwriting speed according to the mapping relation between the handwriting speed and the refreshing mode;
and responding to the note drawing operation of the user, refreshing the page by adopting the target refreshing mode to display the handwritten note drawn by the target note color.
According to still another aspect of the present invention, a computer storage medium is provided, where at least one executable instruction is stored in the storage medium, and the executable instruction causes a processor to perform an operation corresponding to the handwritten note display method of the ink screen device.
According to the handwritten note display method of the ink screen equipment, the ink screen equipment and the storage medium, the handwritten note display method of the ink screen equipment is provided. Firstly, displaying a plurality of selection options of handwriting speed and at least one note color option corresponding to the handwriting speed; identifying a target handwriting speed and a target note color selected by a user, wherein the target note color is one of note colors corresponding to the target handwriting speed; determining a target refreshing mode corresponding to the target handwriting speed; and responding to the note drawing operation of the user, and refreshing the page by adopting a target refreshing mode to display the handwritten note drawn by the target note color. In the scheme, the user can select the target handwriting speed and the target note color which are matched with the requirement of the user according to the sensitivity of the user to the handwriting speed and the note color, so that the differentiation requirements of different users are met; and the refreshing mode adopted by the ink screen equipment is matched with the current user requirement, so that the user experience is improved.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a flowchart illustrating a handwritten note display method of an ink screen device according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a handwritten note display method of an ink screen device according to a second embodiment of the present invention;
FIG. 3 is a flowchart illustrating a handwritten note display method of an ink screen device according to a third embodiment of the present invention;
fig. 4 shows a schematic structural diagram of an ink screen device according to a fifth embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Example one
Fig. 1 is a flowchart illustrating a handwritten note display method of an ink screen device according to an embodiment of the present invention. The handwritten note display method provided by the embodiment is applied to ink screen equipment, the ink screen equipment can be a reader, a mobile phone terminal with an ink screen, a computer, wearable equipment and the like, and the specific type of the ink screen equipment is not limited by the embodiment.
As shown in fig. 1, the method includes:
step S110: and displaying a plurality of selection options of handwriting speeds and at least one note color option corresponding to the handwriting speed.
The ink screen device generally supports a plurality of refresh modes, such as a 2-gray-scale refresh mode, a 4-gray-scale refresh mode, an 8-gray-scale refresh mode, and a 16-gray-scale refresh mode. The refresh speed corresponding to different refresh modes is different, wherein the refresh speed of the 2 gray scale refresh mode is the fastest, and the refresh time of the 16 gray scale refresh mode is the slowest. In the handwriting scene of the ink screen device, the refreshing speed and the handwriting speed are in positive correlation, namely the faster the refreshing speed is, the faster the handwriting speed is, and the slower the refreshing speed is, the slower the handwriting speed is.
Further, the range of colors provided by different refresh modes is also different. In the black-and-white ink screen device, the 2-gray scale refresh mode, the 4-gray scale refresh mode, the 8-gray scale refresh mode and the 16-gray scale refresh mode can provide 2, 4, 8 and 16 colors, respectively. In the color ink screen device, since a layer of color filter is added on the black and white ink screen by the printed circuit technology, the color types provided by the color ink screen device are more, for example, the 2 gray scale refresh mode, the 4 gray scale refresh mode, the 8 gray scale refresh mode and the 16 gray scale refresh mode can respectively provide 2 gray scale refresh modes3Seed, 43Seed, 83Seed and seed 163And (4) a color. Thus, in the handwriting scene of the ink screen device, the types of note colors provided by different refreshing modes are different.
As can be seen from the above, the handwriting speed and the type of note color for different refresh modes are different. The faster the handwriting speed corresponding to the refresh mode, the fewer the types of the corresponding note colors.
Unlike the prior art in which page refreshing is directly performed according to a uniform refresh mode, this embodiment provides a plurality of selection options of handwriting speed and at least one note color option corresponding to the handwriting speed for a user. The handwriting speed is negatively related to the number of corresponding note color options, namely the faster the handwriting speed is, the fewer the corresponding note color options are; the slower the handwriting speed, the more corresponding note color options. The user can select the handwriting speed and the note color which are matched with the requirement of the user according to the sensitivity of the user to the handwriting speed and the note color.
In this embodiment, the selection options of the handwriting speed and the specific display modes of the note color options corresponding to the handwriting speed are not limited. For example, in one display mode, a plurality of selection options of the handwriting speed can be displayed first, and when the note color viewing operation of a user aiming at a certain handwriting speed is monitored, the note color option corresponding to the handwriting speed is displayed, and by adopting the multi-stage display mode, the interference of redundant information to the user can be avoided, and the multi-stage display mode has good visual experience particularly in equipment with a small screen size; in another display mode, a plurality of selection options of handwriting speed and corresponding note color options can be displayed simultaneously, so that a user can quickly determine the finally selected handwriting speed and note color from two dimensions of the handwriting speed and note color.
Step S120: and identifying the target handwriting speed and the target note color selected by the user.
Specifically, a target handwriting speed and a target note color are identified according to a selection operation of a user. The note color selected by the user is the target note color, and the handwriting speed affiliated to the target note color is the target handwriting speed. In other words, the target note color is one of the note colors corresponding to the target handwriting speed.
The embodiment does not limit the specific type of the selection operation, for example, the selection operation may be a click operation, a preset gesture operation, or a voice control operation.
Step S130: and determining a target refreshing mode corresponding to the target handwriting speed according to the mapping relation between the handwriting speed and the refreshing mode.
A mapping relation table of different handwriting speeds and refreshing modes is established in advance, for example, a corresponding relation between a handwriting speed 'fast' and a 2-gray-scale refreshing mode, a corresponding relation between a handwriting speed 'middle' and an 8-gray-scale refreshing mode, and a corresponding relation between a handwriting speed 'slow' and a 16-gray-scale refreshing mode are established.
After the target handwriting speed is determined through step S120, the refresh mode corresponding to the target handwriting speed can be accurately and quickly obtained by looking up the mapping relation table, and the corresponding refresh mode is taken as the target refresh mode.
Step S140: and responding to the note drawing operation of the user, and refreshing the page by adopting a target refreshing mode to display the handwritten note drawn by the target note color.
The target refreshing mode adopted in the embodiment corresponds to the target handwriting speed selected by the user, so that the actual refreshing speed of the ink screen device is matched with the sensitivity of the user to the handwriting speed; in addition, the finally displayed handwritten note color is the target note color selected by the user, and the user requirements are further met.
In the specific implementation process, image data of an image to be displayed is generated according to the note drawing operation of a user and the target note color, and further, according to the image data of the image to be displayed, page refreshing is performed in a target refreshing mode to display the image to be displayed. In order to improve the pen following effect of the note, a real-time refreshing mode is adopted for refreshing in the specific refreshing process. In the process of executing the note drawing operation by a user, reporting current handwritten note drawing information to a controller of the ink screen device by an electromagnetic plate in the ink screen device according to a certain sampling frequency, generating an image to be displayed according to the current handwritten note drawing information by the controller of the ink screen device, and then refreshing a page by adopting a target refreshing mode. And repeating the steps at the next sampling moment, thereby generating the effect of displaying the handwritten notes in real time along with the handwriting operation.
Therefore, the embodiment provides a plurality of selection options of handwriting speeds and at least one note color option corresponding to the handwriting speed for the user. The user can select the target handwriting speed and the target note color which are matched with the requirement of the user according to the sensitivity of the user to the handwriting speed and the note color. And then in the process of drawing the note, refreshing the page by adopting a refreshing mode corresponding to the target handwriting speed, so that the refreshing mode of the ink screen equipment is matched with the actual requirements of the user, the differentiation requirements of different users are met, and the user experience is improved.
Example two
Fig. 2 is a flowchart illustrating a handwritten note display method of an ink screen device according to a second embodiment of the present invention. As shown in fig. 2, the method includes:
step S210: and displaying a plurality of selection options of handwriting speeds and at least one note color option corresponding to the handwriting speed, and identifying the target handwriting speed and the target note color selected by the user.
Step S220: and determining a target refreshing mode corresponding to the target handwriting speed according to the mapping relation between the handwriting speed and the refreshing mode.
The specific implementation process of steps S210 and S220 may refer to the description of the corresponding steps in the first embodiment, which is not described herein again.
Step S230: monitoring the note drawing operation of a user, identifying a drawing area according to the note drawing operation, and determining a gray-scale value corresponding to the drawing area according to the target note color.
The drawing position of the note can be determined according to the note drawing operation of the user, and then the drawing area is determined according to the set note width.
And further determining a gray value corresponding to the drawing area, wherein the gray value is specifically the gray value of the target note color in the target refreshing mode. For example, the target note color is white, which has a gray scale value of 1 in the 2-gray scale refresh mode and a gray scale value of 7 in the 8-gray scale refresh mode. If the target refresh mode is an 8-gray-scale refresh mode, the gray scale value corresponding to the drawing area is 7.
In the black-and-white ink screen apparatus, each note color corresponds to one gray scale value, and for example, eight colors of black, first gray, second gray, third gray, fourth gray, fifth gray, sixth gray, and white are provided in the 8 gray scale refresh mode. The eight colors correspond to gray scale values 0, 1, 2, 3, 4, 5, 6, and 7 in the 8-gray scale refresh mode, respectively. Therefore, in the black-and-white ink screen device, the first gray scale value corresponding to the note color selected by the user can be calculated according to the mapping relation between the color and the gray scale value in the first gray scale refreshing mode. For example, if the first grayscale refresh mode is an 8-grayscale refresh mode and the target note color is two-level gray, the grayscale value of the target note color in the target refresh mode is 2, and thus the grayscale value corresponding to the drawing area is 2. In the black-and-white ink screen device, because the gray scale value of the target note color in the target refresh mode is single, the gray scale value corresponding to the drawing area is single, that is, the gray scale value corresponding to each pixel point in the drawing area is the same.
In the color ink screen device, because the color ink screen is formed by covering a layer of color filter film on a black-and-white ink screen, three adjacent pixels on the color filter film are sequentially coated with red, green and blue colors, and the three adjacent pixels of red, green and blue form a pixel unit. Thus, in a color ink screen device, one note color corresponds to three gray scale values. Thereby, the corresponding gray-scale values of the drawing area are multiple. For example, if the gray scale values corresponding to the rendering area are 2, 1, and 3, the gray scale values corresponding to three pixels belonging to the same pixel unit in the rendering area are 2, 1, and 3, respectively.
In the process of calculating the gray-scale value of the target note color in the target refreshing mode, firstly, the RGB value of the target note color is obtained, and then three color components of the RGB value are obtained, namely, a red component, a green component and a blue component are extracted respectively. And acquiring a gray value of each color component (wherein the gray value range is 0-255), and further determining the gray value of the target note color in the target refreshing mode according to the mapping relation between the gray value and the gray value in the target refreshing mode.
For example, the mapping relationship between the gray-level value and the gray-level value in the 16-gray-level refresh mode is shown in table 1a and table 1b (in the actual implementation process, one skilled in the art can configure the gray-level value and the gray-level value according to the actual requirementThe mapping relationship of (a), which is not limited in this embodiment). In tables 1a and 1b, 16 gray scale values in the 16 gray scale refresh mode correspond to 16 gray scale values of 0-255, respectively, so that a pixel point in the 16 gray scale refresh mode can correspond to 16 gray scale values, and in the color ink screen device, three adjacent rgb pixels form a pixel unit, so that the 16 gray scale refresh mode can provide 16 gray scale values3And (5) writing colors. If the target note color is orange, and the RGB value is (255, 136, 17), the gray level value of the target note color in the target refresh mode is 15, 8, 1; if the target note color is purple and the RGB value is (136, 0, 136), the gray level of the target note color in the target refresh mode is 8, 0, 8.
TABLE 1a
| Grey scale value | 0 | 17 | 34 | 51 | 68 | 85 | 102 | 119 |
| Gray scale value | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
TABLE 1b
| Grey scale value | 136 | 153 | 170 | 187 | 204 | 221 | 238 | 255 |
| Gray scale value | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
Step S240: and acquiring the image data of the previous frame of image to be displayed, and generating the image data of the image to be displayed according to the image data of the previous frame of image to be displayed, the drawing area and the gray-scale value corresponding to the drawing area.
The image to be displayed in the previous frame is the image displayed after the last page refresh, and is also the image displayed in the current ink screen device. In this embodiment, the previous frame of image to be displayed is modified according to the rendering area and the gray scale value corresponding to the rendering area, so as to obtain the current corresponding image to be displayed. The image to be displayed corresponds to the entire display page of the ink screen device.
Step S250: and looking up a table to obtain a driving waveform of the image to be displayed in the target refreshing mode, and driving the ink screen to display the image to be displayed in a global refreshing mode according to the driving waveform of the image to be displayed in the target refreshing mode.
After the image to be displayed is obtained, according to the gray-scale value of each pixel in the image to be displayed in the target refresh mode, the driving waveform corresponding to the gray-scale value of each pixel is searched in the LUT table. The LUT table is a voltage driving table, and the corresponding relations between different gray scale values and driving waveforms are recorded in the LUT. The driving waveform includes information such as voltage, pulse frequency, pulse duration, etc. The ink capsules at the corresponding pixel positions on the ink screen can be driven according to the driving waveforms, so that black and white particles in the ink capsules move at different distances to form corresponding colors, and finally, the image to be displayed is displayed in the ink screen equipment.
In the present embodiment, when performing page refresh, a global refresh mode in the target refresh mode is specifically adopted. Global refresh may also be referred to as a screen flush refresh. The global refresh means that before driving the black-and-white particles to the display position of the image to be displayed, the ink screen is firstly subjected to a full white brushing or full black brushing operation, so that the black-and-white particles return to the initial extreme position, no matter whether the front and back gray scales of the same pixel are changed, and then the black-and-white particles are driven from the initial position to the position corresponding to the gray scale value to display the image to be displayed. Adopt this kind of mode can avoid the ink screen to appear the screen ghost, promote display effect.
Therefore, the embodiment provides a plurality of selection options of handwriting speeds and at least one note color option corresponding to the handwriting speed for the user. The user can select the target handwriting speed and the target note color which are matched with the requirement of the user according to the sensitivity of the user to the handwriting speed and the note color. And then, in the process of drawing the note, refreshing the page by adopting a refreshing mode corresponding to the target handwriting speed, so that the refreshing mode of the ink screen equipment is matched with the actual requirements of the user, the differentiation requirements of different users are met, and the user experience is improved. In addition, in the embodiment, the image data of the image to be displayed is generated according to the image data of the previous frame of image to be displayed, the drawing area and the gray scale value corresponding to the drawing area, and then the image to be displayed is displayed by adopting a global refreshing mode in a target refreshing mode, so that the screen ghost can be effectively avoided, and the display effect is improved.
EXAMPLE III
FIG. 3 is a flowchart illustrating a handwritten note display method of an ink screen device according to a third embodiment of the present invention. As shown in fig. 3, the method includes:
step S310: and displaying a plurality of selection options of handwriting speeds and at least one note color option corresponding to the handwriting speed, and identifying the target handwriting speed and the target note color selected by the user.
Step S320: and determining a target refreshing mode corresponding to the target handwriting speed according to the mapping relation between the handwriting speed and the refreshing mode.
The specific implementation process of step S310 and step S320 may refer to the description of the corresponding steps in the first embodiment, which is not described herein again.
Step S330: monitoring the note drawing operation of a user, identifying a drawing area according to the note drawing operation, and determining a gray-scale value corresponding to the drawing area according to the target note color.
The specific implementation process of this step may refer to the description of the corresponding step in the second embodiment, which is not described herein again.
Step S340: and generating image data of the image to be displayed according to the drawing area and the gray-scale value corresponding to the drawing area.
Different from the second embodiment, in the present embodiment, the image to be displayed is generated only according to the rendering area and the grayscale value corresponding to the rendering area. The image to be displayed corresponds to a portion of the display page of the ink screen device, which is a portion of the display page after the page refresh is executed in the subsequent step S360, and which changes with respect to the current display page.
Step S350: and looking up a table to obtain a driving waveform of the image to be displayed in the target refreshing mode, and driving an ink screen to display the image to be displayed in a local refreshing mode according to the driving waveform of the image to be displayed in the target refreshing mode.
After the image to be displayed is obtained, according to the gray-scale value of each pixel in the image to be displayed in the target refresh mode, the driving waveform corresponding to the gray-scale value of each pixel is searched in the LUT. The ink capsules at the corresponding pixel positions on the ink screen can be driven according to the driving waveforms, so that black and white particles in the ink capsules move at different distances to form corresponding colors. Because the image to be displayed is only the difference part of the displayed page before and after the page refreshing, the table lookup data volume is small, and the table lookup efficiency is high.
In the present embodiment, when performing page refresh, a partial refresh mode in the target refresh mode is specifically adopted. Partial refresh may also be referred to as non-flush refresh. Partial refresh does not perform a screen clearing operation before data output, but directly outputs pixels which change with the current page, thereby greatly improving refresh efficiency and effectively reducing the occurrence of a screen flashing phenomenon compared with the second embodiment.
Therefore, the embodiment provides a plurality of selection options of handwriting speeds and at least one note color option corresponding to the handwriting speed for the user. The user can select the target handwriting speed and the target note color which are matched with the requirement of the user according to the sensitivity of the user to the handwriting speed and the note color. And then, in the process of drawing the note, refreshing the page by adopting a refreshing mode corresponding to the target handwriting speed, so that the refreshing mode of the ink screen equipment is matched with the actual requirements of the user, the differentiation requirements of different users are met, and the user experience is improved. In addition, according to the embodiment, the image data of the image to be displayed is generated according to the drawing area and the gray scale value corresponding to the drawing area, and then the image to be displayed is displayed by adopting a local refreshing mode in the target refreshing mode, so that the refreshing efficiency can be greatly improved, and the phenomenon of screen flashing can be effectively reduced.
Example four
According to a fourth embodiment of the present invention, a non-volatile computer storage medium is provided, where the computer storage medium stores at least one executable instruction, and the computer executable instruction may execute the handwritten note display method of the ink screen device in any of the above-mentioned method embodiments.
The executable instructions may be specifically configured to cause the processor to:
displaying a plurality of selection options of handwriting speeds and at least one note color option corresponding to the handwriting speed;
identifying a target handwriting speed and a target note color selected by a user; the target note color is one of note colors corresponding to the target handwriting speed;
determining a target refreshing mode corresponding to the target handwriting speed according to the mapping relation between the handwriting speed and the refreshing mode;
and responding to the note drawing operation of the user, refreshing the page by adopting the target refreshing mode to display the handwritten note drawn by the target note color.
In an alternative embodiment, the executable instructions may be specifically configured to cause the processor to:
generating image data of an image to be displayed according to the note drawing operation of the user and the target note color;
and refreshing a page by adopting the target refreshing mode according to the image data of the image to be displayed so as to display the image to be displayed.
In an alternative embodiment, the executable instructions may be specifically configured to cause the processor to:
identifying a drawing area according to the note drawing operation;
and determining a gray scale value corresponding to the drawing area according to the target note color.
In an alternative embodiment, the executable instructions may be specifically configured to cause the processor to:
and taking the gray scale value of the target note color in the target refreshing mode as the gray scale value corresponding to the drawing area.
In an alternative embodiment, the executable instructions may be specifically configured to cause the processor to:
acquiring image data of a previous frame of image to be displayed;
and generating the image data of the image to be displayed according to the image data of the previous frame of image to be displayed, the drawing area and the gray scale value corresponding to the drawing area.
In an alternative embodiment, the executable instructions may be specifically configured to cause the processor to:
looking up a table to obtain a driving waveform of the image to be displayed in the target refreshing mode;
and driving an ink screen to display the image to be displayed in a global refreshing mode according to the driving waveform of the image to be displayed in the target refreshing mode.
In an alternative embodiment, the executable instructions may be specifically configured to cause the processor to:
and generating image data of the image to be displayed according to the drawing area and the gray-scale value corresponding to the drawing area.
In an alternative embodiment, the executable instructions may be specifically configured to cause the processor to:
looking up a table to obtain a driving waveform of the image to be displayed in the target refreshing mode;
and driving an ink screen to display the image to be displayed in a local refreshing mode according to the driving waveform of the image to be displayed in the target refreshing mode.
Therefore, the embodiment provides a plurality of selection options of handwriting speeds and at least one note color option corresponding to the handwriting speed for the user. The user can select the target handwriting speed and the target note color which are matched with the requirement of the user according to the sensitivity of the user to the handwriting speed and the note color. And then, in the process of drawing the note, refreshing the page by adopting a refreshing mode corresponding to the target handwriting speed, so that the refreshing mode of the ink screen equipment is matched with the actual requirements of the user, the differentiation requirements of different users are met, and the user experience is improved.
EXAMPLE five
Fig. 4 shows a schematic structural diagram of an ink screen device according to a fifth embodiment of the present invention. As shown in fig. 4, the ink screen apparatus 400 may include: an ink screen 401, a magnetic plate 402, a processor 403, a memory 404, a communication Interface 405, and a communication bus 406. If the ink-screen device is a color ink-screen device, the ink-screen device 400 may further include a color filter (not shown).
Wherein: the ink screen 401, the electromagnetic board 402, the processor 403, the memory 404 and the communication interface 405 are in communication with each other via a communication bus 406. The electromagnetic board 402 is used to detect a handwriting operation instruction generated on the ink screen 501.
A communication interface 405 for communicating with network elements of other devices, such as clients or other servers. The processor 403 is configured to execute the program 407, and may specifically execute relevant steps in the embodiment of the handwritten note display method of the ink screen device.
In particular, the program 407 may include program code that includes computer operating instructions.
The processor 403 may be a central processing unit CPU, or an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement an embodiment of the invention. The ink screen device comprises one or more processors, which can be the same type of processor, such as one or more CPUs; or may be different types of processors such as one or more CPUs and one or more ASICs.
The memory 404 stores a program 407. The memory 404 may comprise high-speed RAM memory, and may also include non-volatile memory (non-volatile memory), such as at least one disk memory.
The program 407 may specifically be configured to cause the processor 403 to perform the following operations:
displaying a plurality of selection options of handwriting speeds and at least one note color option corresponding to the handwriting speed;
identifying a target handwriting speed and a target note color selected by a user; the target note color is one of note colors corresponding to the target handwriting speed;
determining a target refreshing mode corresponding to the target handwriting speed according to the mapping relation between the handwriting speed and the refreshing mode;
and responding to the note drawing operation of the user, and refreshing the page by adopting the target refreshing mode to display the handwritten note drawn by the target note color.
In an alternative embodiment, the program 407 is specifically configured to cause the processor 403 to perform the following operations:
generating image data of an image to be displayed according to the note drawing operation of the user and the target note color;
and refreshing a page by adopting the target refreshing mode according to the image data of the image to be displayed so as to display the image to be displayed.
In an alternative embodiment, the program 407 is specifically configured to cause the processor 403 to perform the following operations:
identifying a drawing area according to the note drawing operation;
and determining a gray scale value corresponding to the drawing area according to the target note color.
In an alternative embodiment, the program 407 is specifically configured to cause the processor 403 to perform the following operations:
and taking the gray scale value of the target note color in the target refreshing mode as the gray scale value corresponding to the drawing area.
In an alternative embodiment, the program 407 is specifically configured to cause the processor 403 to perform the following operations:
acquiring image data of a previous frame of image to be displayed;
and generating the image data of the image to be displayed according to the image data of the previous frame of image to be displayed, the drawing area and the gray scale value corresponding to the drawing area.
In an alternative embodiment, the program 407 can be specifically configured to cause the processor 403 to perform the following operations:
looking up a table to obtain a driving waveform of the image to be displayed in the target refreshing mode;
and driving an ink screen to display the image to be displayed in a global refreshing mode according to the driving waveform of the image to be displayed in the target refreshing mode.
In an alternative embodiment, the program 407 can be specifically configured to cause the processor 403 to perform the following operations:
and generating image data of the image to be displayed according to the drawing area and the gray-scale value corresponding to the drawing area.
In an alternative embodiment, the program 407 is specifically configured to cause the processor 403 to perform the following operations:
looking up a table to obtain a driving waveform of the image to be displayed in the target refreshing mode;
and driving an ink screen to display the image to be displayed in a local refreshing mode according to the driving waveform of the image to be displayed in the target refreshing mode.
Therefore, the embodiment provides a plurality of selection options of handwriting speeds and at least one note color option corresponding to the handwriting speed for the user. The user can select the target handwriting speed and the target note color which are matched with the requirement of the user according to the sensitivity of the user to the handwriting speed and the note color. And then, in the process of drawing the note, refreshing the page by adopting a refreshing mode corresponding to the target handwriting speed, so that the refreshing mode of the ink screen equipment is matched with the actual requirements of the user, the differentiation requirements of different users are met, and the user experience is improved.
The algorithms or displays presented herein are not inherently related to any particular computer, virtual system, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. In addition, embodiments of the present invention are not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the embodiments of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
Various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functionality of some or all of the components according to embodiments of the present invention. The present invention may also be embodied as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present invention may be stored on computer-readable media or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names. The steps in the above embodiments should not be construed as limiting the order of execution unless specified otherwise.
The invention discloses: A1. a handwritten note display method of an ink screen device comprises the following steps:
displaying a plurality of selection options of handwriting speeds and at least one note color option corresponding to the handwriting speed;
identifying a target handwriting speed and a target note color selected by a user; the target note color is one of note colors corresponding to the target handwriting speed;
determining a target refreshing mode corresponding to the target handwriting speed according to the mapping relation between the handwriting speed and the refreshing mode;
and responding to the note drawing operation of the user, and refreshing the page by adopting the target refreshing mode to display the handwritten note drawn by the target note color.
A2. The method of a1, wherein the performing page refresh in the target refresh mode in response to a note drawing operation by a user to display the handwritten note drawn in the target note color further comprises:
generating image data of an image to be displayed according to the note drawing operation of the user and the target note color;
and refreshing a page by adopting the target refreshing mode according to the image data of the image to be displayed so as to display the image to be displayed.
A3. The method of a2, wherein the generating image data of an image to be displayed according to the note drawing operation and the target note color further comprises:
identifying a drawing area according to the note drawing operation;
and determining a gray scale value corresponding to the drawing area according to the target note color.
A4. The method according to a3, wherein the determining a grayscale value corresponding to the drawing region according to the target note color further includes:
and taking the gray scale value of the target note color in the target refreshing mode as the gray scale value corresponding to the drawing area.
A5. The method of A3 or A4, wherein the generating image data of an image to be displayed according to the note drawing operation and the target note color further comprises:
acquiring image data of a previous frame of image to be displayed;
and generating the image data of the image to be displayed according to the image data of the previous frame of image to be displayed, the drawing area and the gray scale value corresponding to the drawing area.
A6. The method according to a5, wherein the performing page refresh in the target refresh mode according to the image data of the image to be displayed to display the image to be displayed further includes:
looking up a table to obtain a driving waveform of the image to be displayed in the target refreshing mode;
and driving an ink screen to display the image to be displayed in a global refreshing mode according to the driving waveform of the image to be displayed in the target refreshing mode.
A7. The method of A3 or A4, wherein the generating image data of an image to be displayed according to the note drawing operation and the target note color further comprises:
and generating image data of the image to be displayed according to the drawing area and the gray-scale value corresponding to the drawing area.
A8. The method according to claim 7, wherein the performing page refresh in the target refresh mode according to the image data of the image to be displayed to display the image to be displayed further comprises:
looking up a table to obtain a driving waveform of the image to be displayed in the target refreshing mode;
and driving an ink screen to display the image to be displayed in a local refreshing mode according to the driving waveform of the image to be displayed in the target refreshing mode.
The invention also discloses: B9. an ink screen apparatus, comprising: the ink screen, the electromagnetic plate, the processor, the memory, the communication interface and the communication bus are communicated with each other through the communication bus;
the electromagnetic plate is used for detecting handwriting operation instructions generated on the ink screen by the electromagnetic pen,
the memory is configured to store at least one executable instruction that causes the processor to:
displaying a plurality of selection options of handwriting speeds and at least one note color option corresponding to the handwriting speed;
identifying a target handwriting speed and a target note color selected by a user; the target note color is one of note colors corresponding to the target handwriting speed;
determining a target refreshing mode corresponding to the target handwriting speed according to the mapping relation between the handwriting speed and the refreshing mode;
and responding to the note drawing operation of the user, refreshing the page by adopting the target refreshing mode to display the handwritten note drawn by the target note color.
B10. The ink screen device of B9, wherein the executable instructions cause the processor to:
generating image data of an image to be displayed according to the note drawing operation of the user and the target note color;
and refreshing a page by adopting the target refreshing mode according to the image data of the image to be displayed so as to display the image to be displayed.
B11. The ink screen device of B10, wherein the executable instructions cause the processor to:
identifying a drawing area according to the note drawing operation;
and determining a gray scale value corresponding to the drawing area according to the target note color.
B12. The ink screen device of B11, wherein the executable instructions cause the processor to:
and taking the gray scale value of the target note color in the target refreshing mode as the gray scale value corresponding to the drawing area.
B13. The ink screen device of B11 or B12, wherein the executable instructions cause the processor to:
acquiring image data of a previous frame of image to be displayed;
and generating the image data of the image to be displayed according to the image data of the previous frame of image to be displayed, the drawing area and the gray scale value corresponding to the drawing area.
B14. The ink screen device of B13, wherein the executable instructions cause the processor to:
looking up a table to obtain a driving waveform of the image to be displayed in the target refreshing mode;
and driving an ink screen to display the image to be displayed in a global refreshing mode according to the driving waveform of the image to be displayed in the target refreshing mode.
B15. The ink screen device of B11 or 12, wherein the executable instructions cause the processor to:
and generating image data of the image to be displayed according to the drawing area and the gray-scale value corresponding to the drawing area.
B16. The ink screen device of B15, wherein the executable instructions cause the processor to:
looking up a table to obtain a driving waveform of the image to be displayed in the target refreshing mode;
and driving an ink screen to display the image to be displayed in a local refreshing mode according to the driving waveform of the image to be displayed in the target refreshing mode.
The invention also discloses: C17. a computer storage medium having stored therein at least one executable instruction for causing a processor to perform operations corresponding to the handwritten note display method of an ink screen device as described in any of a 1-A8.
Claims (10)
1. A handwritten note display method of an ink screen device comprises the following steps:
displaying a plurality of selection options of handwriting speeds and at least one note color option corresponding to the handwriting speed;
identifying a target handwriting speed and a target note color selected by a user; the target note color is one of note colors corresponding to the target handwriting speed;
determining a target refreshing mode corresponding to the target handwriting speed according to the mapping relation between the handwriting speed and the refreshing mode;
and responding to the note drawing operation of the user, refreshing the page by adopting the target refreshing mode to display the handwritten note drawn by the target note color.
2. The method of claim 1, wherein the page refreshing in the target refresh mode to display the target note color drawn handwritten note in response to a note drawing operation by a user further comprises:
generating image data of an image to be displayed according to the note drawing operation of the user and the target note color;
and refreshing a page by adopting the target refreshing mode according to the image data of the image to be displayed so as to display the image to be displayed.
3. The method of claim 2, wherein the generating image data for an image to be displayed in accordance with the note drawing operation and the target note color further comprises:
identifying a drawing area according to the note drawing operation;
and determining a gray scale value corresponding to the drawing area according to the target note color.
4. The method of claim 3, wherein the determining a grayscale value corresponding to the drawing region according to the target note color further comprises:
and taking the gray scale value of the target note color in the target refreshing mode as the gray scale value corresponding to the drawing area.
5. The method of claim 3 or 4, wherein the generating image data of an image to be displayed according to the note drawing operation and the target note color further comprises:
acquiring image data of a previous frame of image to be displayed;
and generating the image data of the image to be displayed according to the image data of the previous frame of image to be displayed, the drawing area and the gray scale value corresponding to the drawing area.
6. The method according to claim 5, wherein the performing page refresh in the target refresh mode according to the image data of the image to be displayed to display the image to be displayed further comprises:
looking up a table to obtain a driving waveform of the image to be displayed in the target refreshing mode;
and driving an ink screen to display the image to be displayed in a global refreshing mode according to the driving waveform of the image to be displayed in the target refreshing mode.
7. The method of claim 3 or 4, wherein the generating image data of an image to be displayed according to the note drawing operation and the target note color further comprises:
and generating image data of the image to be displayed according to the drawing area and the gray-scale value corresponding to the drawing area.
8. The method according to claim 7, wherein the performing page refresh in the target refresh mode according to the image data of the image to be displayed to display the image to be displayed further comprises:
looking up a table to obtain a driving waveform of the image to be displayed in the target refreshing mode;
and driving an ink screen to display the image to be displayed in a local refreshing mode according to the driving waveform of the image to be displayed in the target refreshing mode.
9. An ink screen apparatus, comprising: the ink screen, the electromagnetic plate, the processor, the memory, the communication interface and the communication bus are communicated with each other through the communication bus;
the electromagnetic plate is used for detecting handwriting operation instructions generated on the ink screen by the electromagnetic pen,
the memory is configured to store at least one executable instruction that causes the processor to:
displaying a plurality of selection options of handwriting speeds and at least one note color option corresponding to the handwriting speed;
identifying a target handwriting speed and a target note color selected by a user; the target note color is one of note colors corresponding to the target handwriting speed;
determining a target refreshing mode corresponding to the target handwriting speed according to the mapping relation between the handwriting speed and the refreshing mode;
and responding to the note drawing operation of the user, refreshing the page by adopting the target refreshing mode to display the handwritten note drawn by the target note color.
10. A computer storage medium having stored therein at least one executable instruction for causing a processor to perform operations corresponding to the handwritten note display method of an ink screen device of any one of claims 1-8.
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