CN212515742U - Writing board capable of realizing fine erasing - Google Patents
Writing board capable of realizing fine erasing Download PDFInfo
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- CN212515742U CN212515742U CN202021520971.6U CN202021520971U CN212515742U CN 212515742 U CN212515742 U CN 212515742U CN 202021520971 U CN202021520971 U CN 202021520971U CN 212515742 U CN212515742 U CN 212515742U
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Abstract
A writing board capable of realizing fine erasing, wherein a touch screen comprises a writing touch screen area and a shortcut key touch screen area, the shortcut key touch screen area is arranged at the periphery of the writing touch screen area, the writing touch screen area is used for writing, and the shortcut key touch screen area is provided with a local erasing shortcut key; the touch sensor is connected with the touch screen and used for receiving local wiping signals of the touch screen to enter an wiping mode and determining a local wiping area; the erasing control circuit is connected with the touch sensor and is used for erasing the handwriting at the corresponding position according to the local erasing area determined by the touch sensor. This can realize meticulous clipboard of erasing has solved among the prior art that the blackboard of writing can only erase the writing track by a large scale and has erased unnecessary writing track to and lead to the not good technical problem of user's result of use, this can realize meticulous clipboard of erasing, directly uses the writing pen can realize erasing the meticulous of writing the track, erases efficiently, improves user's result of use.
Description
Technical Field
The utility model relates to an intelligent display technical field especially relates to a can realize meticulous clipboard of erasing.
Background
The current writing blackboard made of the liquid crystal writing film is convenient for people to use and can realize local erasing, the realization mode is that the coordinate of the writing point, the width and the height data are transmitted to the erasing control circuit of the writing blackboard by the touch sensor sensing the writing track and the size of the writing object, when the erasing control circuit receives the data and judges that the width and height of the writing point are greater than a certain value, the writing blackboard enters an erasing state, the erasing circuit is controlled to erase the writing notes at the writing point, in order to better distinguish the normal writing state from the erasing state, the erasing judgment area is generally larger and is generally more than 4cm X4 cm so as to obviously distinguish the size of a pen point from the size of the normal writing pen point, therefore, the erasing function can only erase the writing track in a large area, and finally the practicability of the writing blackboard is limited, and the using effect of a user is reduced.
SUMMERY OF THE UTILITY MODEL
Problem to prior art exists, the utility model provides a can realize meticulous clipboard of erasing has solved among the prior art and has write the blackboard and can only erase the writing orbit by a large scale and erase unnecessary writing orbit to and lead to the not good technical problem of user's result of use, this can realize the meticulous clipboard of erasing, directly uses the writing pen can realize erasing the meticulous of writing the orbit, erases efficiently, improves user's result of use.
In order to achieve the above object, the present invention provides the following technical solutions:
a writing board capable of realizing fine erasing comprises a touch screen, wherein the touch screen comprises a writing touch screen area and a shortcut key touch screen area, the shortcut key touch screen area is arranged on the periphery of the writing touch screen area, the writing touch screen area is used for writing, and the shortcut key touch screen area is provided with a local erasing shortcut key; the touch sensor is connected with the touch screen and used for receiving an office wiping signal of the touch screen to enter an wiping mode and determining an office wiping area; and the erasing control circuit is connected with the touch sensor and is used for erasing the handwriting at the corresponding position according to the local erasing area determined by the touch sensor.
Furthermore, the front surface of the writing board capable of realizing fine erasing is also provided with a key adjacent to the touch screen, and the key is connected with the touch sensor.
Further, the touch screen is an infrared technology touch screen, or an electromagnetic touch screen, or a capacitive touch screen, or a resistive touch screen.
The utility model has the advantages that:
according to the above features, the writing board capable of realizing fine erasing provided by the present invention is used for writing on the writing touch screen area of the touch screen, if the local handwriting needs to be erased, the local erasing shortcut key arranged on the shortcut key touch screen area is clicked, the touch sensor receives the local erasing signal of the touch screen to enter the local erasing mode, the writing coordinate is calculated, so as to determine the position to be erased, the touch sensor calculates the starting position and the ending position of the X axis and the Y axis of the erasing block in the writing touch screen area of the touch screen according to the erasing position and the erasing area size, the touch sensor transmits the starting position and the ending position of the X axis and the Y axis of the erasing block to the erasing control circuit, the erasing control circuit performs the designated position according to the data, the local erasing with the designated size is realized, that the fine erasing of the writing track can be realized by directly using the writing pen, the erasing efficiency is high, and the precision is high.
The utility model provides a can realize meticulous clipboard of erasing has solved among the prior art and has write the blackboard and can only erase the writing orbit by a large scale and erased unnecessary writing orbit to and lead to the not good technical problem of user's result of use, this can realize the meticulous clipboard of erasing, directly uses the writing pen can realize erasing the meticulous of writing the orbit, erases efficiently, improves user's result of use.
Drawings
FIG. 1 is a schematic structural diagram of a writing board capable of implementing fine erasing according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a writing board capable of implementing fine erasing according to an embodiment of the present invention.
In the figure, 10-touch screen, 11-writing touch screen area, 12-shortcut key touch screen area, 13-local erasing key, 20-writing pen, 30-touch sensor and 40-erasing control circuit
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a writing board capable of realizing fine erasing in an embodiment of the present invention, and fig. 2 is a schematic structural diagram of a writing board capable of realizing fine erasing in an embodiment of the present invention.
The embodiment provides a can realize meticulous clipboard of erasing, belongs to intelligent display technical field, uses areas such as office, meeting room, classroom often being applied to. This can realize meticulous clipboard of erasing has solved among the prior art that the blackboard of writing can only erase the writing track by a large scale and has erased unnecessary writing track to and lead to the not good technical problem of user's result of use, this can realize meticulous clipboard of erasing, directly uses the writing pen can realize erasing the meticulous of writing the track, erases efficiently, improves user's result of use.
Referring to fig. 1 and 2, the writing board capable of realizing fine erasing comprises a writing board body, a touch screen 10, a touch sensor 30 and an erasing control circuit 40, wherein the touch screen 10 is arranged on the front surface of the writing board body and comprises a writing touch screen area 11 and a shortcut touch screen area 12, the shortcut touch screen area 12 is arranged on the periphery of the writing touch screen area 11, the writing touch screen area 11 is used for writing, a user writes, draws and the like on the writing touch screen area 11, the shortcut touch screen area 12 is provided with local erasing shortcuts and other shortcuts, and a function instruction signal can be formed by clicking the shortcuts; the touch sensor 30 is connected to the touch screen 10, and is configured to receive an erase signal from the touch screen 10 to enter an erase mode and determine an erase region; the erasing control circuit 40 is connected to the touch sensor 30, and is configured to erase the handwriting at the corresponding position according to the local erasing area determined by the touch sensor 30.
With continued reference to fig. 1, in the present embodiment, the front surface of the writing board capable of implementing fine erasing is further provided with a local erasing button 13 adjacent to the touch screen 10, the local erasing button 13 is connected to the touch sensor 30, and the function of the local erasing button 13 is consistent with the function of the local erasing shortcut key provided in the shortcut touch screen area 12.
Specifically, in the present embodiment, the touch screen 10 is configured as an infrared technology touch screen, an electromagnetic touch screen, a capacitive touch screen, a resistive touch screen, or the like.
The utility model provides a can realize the clipboard of meticulous erasing, when using, write on writing touch-sensitive screen zone 11 of touch-sensitive screen 10, if need erase local handwriting, click the local that establishes on shortcut key touch-sensitive screen zone 12 and wipe the shortcut key or press local and wipe button 13, touch-sensitive sensor receives the local signal of wiping of touch-sensitive screen 10 and gets into the local mode of wiping, calculate and write the coordinate, thereby confirm and want to erase the position, touch-sensitive sensor 30 will be according to erasing the position, and erase the area size, calculate the initial position and the end position of erasing the X axle and the Y axle of the square in writing touch-sensitive screen zone 11 of touch-sensitive screen 10, touch-sensitive sensor 30 will erase the initial position and the end position of the Y axle of square and convey and erase control circuit 40, it carries out the assigned position according to this data to erase control circuit 40, the local of assigned size is erased, namely, the writing pen can be directly used for realizing the fine erasing of the writing track, the erasing efficiency is high, and the accuracy is high.
The above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, the present invention is described in detail with reference to the preferred embodiments, and those skilled in the art should understand that the technical solutions of the present invention are modified or replaced with equivalents without departing from the spirit and scope of the technical solutions, which should be covered by the claims of the present invention.
Claims (3)
1. A writing board capable of realizing fine erasing, characterized in that: the writing board capable of realizing fine erasing includes,
the touch screen comprises a writing touch screen area and a shortcut key touch screen area, wherein the shortcut key touch screen area is arranged on the periphery of the writing touch screen area and is used for writing, and the shortcut key touch screen area is provided with a local erasing shortcut key;
the touch sensor is connected with the touch screen and used for receiving an office wiping signal of the touch screen to enter an wiping mode and determining an office wiping area;
and the erasing control circuit is connected with the touch sensor and is used for erasing the handwriting at the corresponding position according to the local erasing area determined by the touch sensor.
2. The writing board capable of realizing fine erasing according to claim 1, wherein: the front surface of the writing board capable of realizing fine erasing is also provided with a key adjacent to the touch screen, and the key is connected with the touch sensor.
3. A writing board capable of realizing fine erasing according to claim 1 or 2, wherein: the touch screen is set to be an infrared technology touch screen, or an electromagnetic touch screen, or a capacitive touch screen, or a resistive touch screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021520971.6U CN212515742U (en) | 2020-07-28 | 2020-07-28 | Writing board capable of realizing fine erasing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021520971.6U CN212515742U (en) | 2020-07-28 | 2020-07-28 | Writing board capable of realizing fine erasing |
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| Publication Number | Publication Date |
|---|---|
| CN212515742U true CN212515742U (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021520971.6U Active CN212515742U (en) | 2020-07-28 | 2020-07-28 | Writing board capable of realizing fine erasing |
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| CN (1) | CN212515742U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113345384A (en) * | 2021-05-28 | 2021-09-03 | 深圳市爱码讯实业发展有限公司 | Handwriting erasing method and system for handwriting board |
| CN117193620A (en) * | 2023-10-06 | 2023-12-08 | 深圳市弘扬德教科技有限公司 | Liquid crystal film local erasing handwriting color light energy plate and electronic writing equipment |
-
2020
- 2020-07-28 CN CN202021520971.6U patent/CN212515742U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113345384A (en) * | 2021-05-28 | 2021-09-03 | 深圳市爱码讯实业发展有限公司 | Handwriting erasing method and system for handwriting board |
| CN117193620A (en) * | 2023-10-06 | 2023-12-08 | 深圳市弘扬德教科技有限公司 | Liquid crystal film local erasing handwriting color light energy plate and electronic writing equipment |
| CN117193620B (en) * | 2023-10-06 | 2024-05-31 | 深圳市弘扬德教科技有限公司 | Liquid crystal film local erasing handwriting color light energy plate and electronic writing equipment |
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