CN114201064A - Touch display and control method of display mode thereof - Google Patents
Touch display and control method of display mode thereof Download PDFInfo
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- CN114201064A CN114201064A CN202010977302.XA CN202010977302A CN114201064A CN 114201064 A CN114201064 A CN 114201064A CN 202010977302 A CN202010977302 A CN 202010977302A CN 114201064 A CN114201064 A CN 114201064A
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- 206010047571 Visual impairment Diseases 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/04162—Control or interface arrangements specially adapted for digitisers for exchanging data with external devices, e.g. smart pens, via the digitiser sensing hardware
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
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Abstract
The invention discloses a touch display and a control method of a display mode of the touch display. The control method of the display mode is used for the touch display. In the method, touch input data from a touch display panel is received. Then, the control module analyzes the touch input data to judge whether the touch display is in a handwriting state. And when the control module judges that the touch display is in a handwriting state, the touch display panel is in a handwriting display mode. And when the control module judges that the touch display is not in a handwriting state, the touch display panel is in a non-handwriting display mode. Therefore, according to the control method of the display mode, the touch display panel can be in a proper display mode, so that defects such as ghost shadow, flicker, delay or broken handwriting lines can be reduced or avoided.
Description
Technical Field
The present invention relates to a display and a control method of a display mode thereof, and more particularly, to a touch display and a control method of a display mode thereof.
Background
Currently, some electronic papers have a touch function, so that a user can not only read text and pictures displayed on the electronic paper, but also write on the electronic paper to input text or pictures. Therefore, the existing electronic paper can provide the functions of writing and drawing characters for users. However, when a user writes on the electronic paper, the general electronic paper may have defects such as image sticking, flickering, delay (latency), or broken lines of the written lines.
Disclosure of Invention
The present invention is directed to a touch display and a method for controlling a display mode thereof, which can help reduce or avoid the above-mentioned drawbacks.
The control method of the display mode provided by at least one embodiment of the invention is used for a touch display, wherein the touch display comprises a touch display panel and a control module electrically connected with the touch display panel. In the control method of the display mode, touch input data from the touch display panel is received. Then, the control module analyzes the touch input data to judge whether the touch display is in a handwriting state. And when the control module judges that the touch display is in a handwriting state, the touch display panel is in a handwriting display mode. And when the control module judges that the touch display is not in a handwriting state, the touch display panel is in a non-handwriting display mode.
The touch display provided by at least one embodiment of the invention includes a touch display panel and a control module, wherein the control module is electrically connected to the touch display panel. When the object contacts the touch display panel, the touch display panel generates touch input data. The control module is used for analyzing the touch input data to judge whether the touch display is in a handwriting state. When the touch display is judged to be in the handwriting state, the control module enables the touch display panel to be in a handwriting display mode. When the touch display is judged not to be in the handwriting state, the control module enables the touch display panel to be in the non-handwriting display mode.
In at least one embodiment of the present invention, when the object contacts the touch display panel and moves on the touch display panel, the touch display panel generates at least one movement signal, and the step of analyzing the touch input data by the control module includes counting the number of movement signals in the touch input data. When the number of the moving signals is less than the preset number, the control module judges that the touch display is not in a handwriting state. When the number of the mobile signals exceeds the preset number, the control module judges that the touch display is in a handwriting state.
In at least one embodiment of the present invention, when the object just contacts the touch display panel, the touch display panel generates a touch signal. When an object contacting the touch display panel just leaves the touch display panel, the touch display panel generates a separation signal. The step of analyzing the touch input data by the control module further comprises the step of calculating the contact time between the touch signal and the separation signal by the control module. When the contact time is shorter than the preset time, the control module judges that the touch display is not in a handwriting state.
In at least one embodiment of the present invention, the step of analyzing the touch input data by the control module further includes determining that the touch display is not in the handwriting state when the contact time exceeds a preset time and the number of the moving signals does not exceed a preset number. When the contact time exceeds the preset time and the number of the mobile signals exceeds the preset number, the control module judges that the touch display is in a handwriting state.
In at least one embodiment of the present invention, the step of analyzing the touch input data by the control module includes the control module calculating a similarity between the touch input data and the handwriting sample data. And when the similarity exceeds a preset value, the control module judges that the touch display is in a handwriting state. And when the similarity is below a preset value, the control module judges that the touch display is in a non-handwriting state.
In at least one embodiment of the present invention, the step of analyzing the touch input data by the control module includes the control module calculating a similarity between the touch input data and the non-handwritten sample data. And when the similarity exceeds a preset value, the control module judges that the touch display is in a non-handwriting state. And when the similarity is below a preset value, the control module judges that the touch display is in a handwriting state.
In at least one embodiment of the present invention, the control module stores the handwriting sample data.
In at least one embodiment of the present invention, the control module stores the non-handwritten sample data.
In at least one embodiment of the present invention, the touch display panel has a plurality of pixels. When the touch display panel is in a handwriting display mode, the touch display updates the corresponding part of the pixels according to the position and the moving track of the object.
In at least one embodiment of the present invention, the method for calculating the similarity includes string matching algorithms (string matching algorithms) or pattern matching algorithms (pattern matching algorithms).
Compared with the prior art, the invention has the following beneficial effects: according to the touch display and the control method of the display mode of the touch display, the control module can analyze the touch input data generated by the touch display panel to judge whether the touch display is in a handwriting state or not, so that the touch display panel is in a proper display mode (namely a handwriting display mode or a non-handwriting display mode), and further defects such as ghost shadow, flicker, delay or handwritten line breakage can be reduced or avoided.
Drawings
Fig. 1 is a block diagram of a touch display according to at least one embodiment of the invention.
Fig. 2A is a flowchart illustrating a method for controlling a display mode according to at least one embodiment of the invention.
Fig. 2B is a schematic flowchart further disclosing step S210 in fig. 2A.
Fig. 2C is an operation diagram of the touch display panel in fig. 1 in a handwriting display mode.
Fig. 2D is a schematic diagram of touch input data generated by the touch display panel in fig. 2C.
Fig. 2E is an operation diagram of the touch display panel in fig. 1 in a non-handwriting display mode.
Fig. 2F is a schematic diagram of touch input data generated by the touch display panel in fig. 2E.
Fig. 3 is a flowchart illustrating a method for controlling a display mode according to another embodiment of the invention.
Fig. 4 is a flowchart illustrating a method for controlling a display mode according to another embodiment of the invention.
Description of the main reference numerals:
10-object, 20-finger, 100-touch display, 110-control module, 111-processor, 112-storage unit, 120-touch display panel, 121-reflective display panel, 121 a-icon, 122-touch panel, 122 a-touch surface, D2-touch signal, EP2, SP 2-point, M2-move signal, S201, S210, S211, S212, S213, S214, S221, S222, S311, S312, S411, S412-step, T2-move track, U2-disengage signal.
Detailed Description
In the following description, dimensions (e.g., length, width, thickness, and depth) of elements (e.g., layers, films, substrates, regions, etc.) in the figures are exaggerated in various proportions for the sake of clarity. Accordingly, the description and illustrations of the embodiments below are not limited to the sizes and shapes of elements shown in the drawings, but are intended to cover deviations in sizes, shapes and both that result from actual manufacturing processes and/or tolerances. For example, the flat surfaces shown in the figures may have rough and/or non-linear features, while the acute angles shown in the figures may be rounded. Therefore, the elements shown in the drawings are for illustrative purposes only, and are not intended to accurately depict the actual shapes of the elements or to limit the scope of the claims.
Fig. 1 is a block diagram of a touch display according to at least one embodiment of the invention. Referring to fig. 1, the touch display 100 includes a control module 110 and a touch display panel 120, wherein the control module 110 is electrically connected to the touch display panel 120. The touch display panel 120 can detect the contact of the object 10, so that the touch display 100 can further sense the position and movement of the object 10, wherein the object 10 can be a finger or a stylus (stylus), and the object 10 shown in fig. 1 is exemplified by a stylus.
In the embodiment shown in fig. 1, the touch display panel 120 may belong to an out-cell (out-cell) touch display panel, and may include a reflective display panel 121 and a touch panel 122, wherein the touch panel 122 may be adhered to the reflective display panel 121, so that the touch panel 122 is fixed on the reflective display panel 121. The reflective display panel 121 may be a display device that can maintain an image even when no electric power is supplied, such as an electrowetting display panel or an electrophoretic display panel.
However, it should be noted that in other embodiments, the touch display panel 120 may also belong to an integrated (on-cell) or an in-cell (in-cell) touch display panel. That is, the reflective display panel 121 and the touch panel 122 can be integrated into a single display panel. Therefore, the touch display panel 120 shown in fig. 1 is only for illustration, and the touch display panel 120 is not limited to be an external touch display panel.
When the object 10 contacts the touch surface 122a of the touch panel 122, the touch panel 122 generates touch input data, wherein the touch input data may include a plurality of digital signals representing 0 and 1. The control module 110 is used for analyzing the touch input data to obtain the position and movement information of the object 10. Therefore, according to the touch input data generated by the touch display panel 120, the control module 110 can know the position and movement of the object 10 on the touch surface 122a, so that the touch display 100 can sense the position and movement of the object 10.
In the present embodiment, the control module 110 may include a processor 111 and a storage unit 112, wherein the processor 111 is electrically connected to the touch panel 122, the reflective display panel 121 and the storage unit 112, and may be a microprocessor. The storage unit 112 can store touch input data, and the processor 111 can read the touch input data from the storage unit 112 to analyze the touch input data, thereby sensing the position and movement of the object 10.
Fig. 2A is a flowchart illustrating a method for controlling a display mode according to at least one embodiment of the invention. Referring to fig. 1 and fig. 2A, the method for controlling the display mode disclosed in fig. 2A can be applied to the touch display 100. That is, the touch display 100 in fig. 1 can execute the control method of the display mode in fig. 2A, and the storage unit 112 can store software for executing the control method. In the embodiment shown in fig. 2A, the control module 110 can analyze the touch input data to not only sense the position and movement of the object 10, but also determine whether the user uses the handwriting function of the touch display 100. In other words, according to the touch input data, the processor 111 of the control module 110 can determine whether the touch display 100 is in the handwriting state.
In the touch display 100 executing the control method shown in fig. 2A, first, step S201 is executed, and the control module 110 receives touch input data from the touch display panel 120. When the object 10 contacts the touch surface 122a of the touch panel 122, the touch panel 122 generates touch input data and inputs the touch input data to the control module 110, so that the control module 110 can receive the touch input data, wherein the touch input data can be stored in the storage unit 112 for the processor 111 to read and analyze.
Next, step S210 is executed to enable the control module 110 to analyze the touch input data to determine whether the touch display 100 is in the handwriting state. When the control module 110 determines that the touch display 100 is in the handwriting state, step S221 is executed, and the control module 110 enables the touch display panel 120 to be in the handwriting display mode. When the touch display panel 120 is in the handwriting display mode, the reflective display panel 121 can display the position and the moving track of the object 10 on the touch panel 122 in real time.
For example, the touch display panel 120 has a plurality of pixels, and the reflective display panel 121 updates only a portion of the corresponding pixels according to the position and the moving track of the object 10, but does not update all the pixels, so as to help reduce or eliminate the defects such as delay or disconnection of a handwritten line, wherein the control module 110 may input image data to the reflective display panel 121 by using, for example, a Universal Serial Bus (USB).
When the control module 110 determines that the touch display 100 is not in the handwriting state, step S222 is executed, and the control module 110 enables the touch display panel 120 to be in the non-handwriting display mode, where the non-handwriting display mode is, for example, a reading mode. When the touch display panel 120 is in the non-handwriting display mode (e.g., the reading mode), the control module 110 may input image data to the reflective display panel 121 by using, for example, a Mobile Industry Processor Interface (MIPI), so as to update all pixels of the reflective display panel 121.
Since the control module 110 can analyze the touch input data generated by the touch display panel 120 to determine whether the touch display 100 is in a handwriting state, the touch display panel 120 is in a proper display mode (i.e., a handwriting display mode or a non-handwriting display mode). Thus, the touch display 100 can automatically enter a suitable display mode according to the touch operation manner of the user, so as to help reduce or avoid defects such as ghost, flicker, delay or disconnection of a handwritten line.
Fig. 2B is a schematic flowchart further disclosing step S210 in fig. 2A. Referring to fig. 1 and 2B, in step S210 in fig. 2A, there are various embodiments for analyzing the touch input data to determine whether the touch display 100 is in the handwriting state, and fig. 2B discloses at least one embodiment thereof. It should be noted, however, that the step S210 disclosed in fig. 2B is only one of many specific implementation methods, and therefore the specific implementation method of the step S210 is not limited to fig. 2B. Specifically, after the control module 110 receives the touch input data from the touch display panel 120 (i.e., step S201 shown in fig. 2A), step S211 can be executed, and the processor 111 of the control module 110 calculates the contact time between the touch signal and the release signal.
Referring to fig. 1, fig. 2C and fig. 2D, wherein fig. 2C is an operation diagram of the touch display 100 in a handwriting display mode, and fig. 2D discloses touch input data generated by the touch display panel 120 in fig. 2C. When the object 10 just touches the touch surface 122a of the touch display panel 120, the touch panel 122 of the touch display panel 120 generates the touch signal D2 first. Taking the left diagram of fig. 2C as an example, when the user uses the object 10 to write on the touch display panel 120, the object 10 first contacts the point SP2 of the touch display panel 120, wherein the point SP2 is located on the touch surface 122 a. At this time, the touch panel 122 generates a touch signal D2 because the object 10 touches the point SP 2.
When the object 10 is still continuously in contact with the touch surface 122a of the touch display panel 120 after the contact point SP2 and moves on the touch surface 122a to form a movement track T2 starting from the point SP2, the touch display panel 122 generates at least one movement signal M2 (shown by a dotted line in fig. 2D). The number of the moving signals M2 is related to the path length of the moving trajectory T2. The longer the path length of the movement trajectory T2, the greater the number of generated movement signals M2.
When the object 10 contacting the touch display panel 120 just leaves the touch display panel 120 from the point EP2 on the touch surface 122a, the touch panel 122 generates the leaving signal U2, and the moving track T2 starting from the point SP2 and ending at the point EP2 is displayed on the reflective display panel 121. Since the touch input data has a plurality of digital signals representing 0 and 1, the touch signal D2, the moving signal M2 and the release signal U2 are also digital signals. Taking fig. 2D as an example, the touch signal D2, the moving signal M2 and the release signal U2 may be substantially square wave signals with logic level 1.
Referring to fig. 1, fig. 2B and fig. 2D, after step S211, step S212 may be executed in which the processor 111 of the control module 110 counts the number of the movement signals M2 in the touch input data. Then, step S213 is executed, and the processor 111 of the control module 110 determines whether the contact time calculated in step S211 exceeds a preset time, wherein the preset time may be selected according to different types of touch displays 100, and the preset time may be between 50 milliseconds (ms) and 200 ms, but the invention is not limited thereto.
The contact time between the touch signal D2 and the release signal U2 substantially corresponds to the time when the object 10 continuously and uninterruptedly contacts the touch surface 122a of the touch display panel 120. When the contact time does not exceed the preset time, i.e., is less than the preset time, the time representing that the object 10 continuously contacts the touch display panel 120 is so short that the object 10 has difficulty in forming a moving track on the touch surface 122a enough to be sensed, so that it is difficult to generate the moving signal M2, even not generate any moving signal M2.
Therefore, once the processor 111 determines that the contact time does not exceed the predetermined time (i.e. is less than the predetermined time), the processor 111 determines that the touch display 100 is not in the handwriting state, and performs step S222 to enable the touch display panel 120 to be in the non-handwriting display mode. On the contrary, when the contact time exceeds the predetermined time, the time for the object 10 to continuously contact the touch display panel 120 is sufficient to generate the moving signal M2. At this time, the processor 111 of the control module 110 executes step S214 to further determine whether the number of the moving signals M2 exceeds a preset number. Similar to the preset time, the preset number may be selected according to different types of touch displays 100, and the preset number may be between 5 and 10, but the invention is not limited thereto.
Referring to fig. 1, fig. 2B, fig. 2E and fig. 2F, when the contact time exceeds the predetermined time and the number of the moving signals M2 does not exceed the predetermined number, the processor 111 determines that the touch display 100 is not in the handwriting state, and executes step S222 to enable the touch display panel 120 to be in the non-handwriting display mode.
Taking fig. 2E and fig. 2F as an example, when the user presses the icon (icon)121a displayed on the touch display panel 120 with the finger 20 for a long time, the contact time obviously exceeds the preset time. However, the finger 20 presses the icon 121a for a long time and does not move on the touch surface 122a of the touch display panel 120, so the touch display panel 120 generates a small number of movement signals M2 (e.g., two movement signals M2 shown in fig. 2F), or even generates no movement signal M2. Thus, if the number of the movement signals M2 does not exceed the preset number, the control module 110 determines that the touch display 100 is not in the handwriting state, and performs step S222.
Referring to fig. 1, fig. 2B, fig. 2C and fig. 2D, when the contact time exceeds the preset time and the number of the moving signals M2 exceeds the preset number, the processor 111 determines that the touch display 100 is in the handwriting state, and executes step S221, and the control module 110 makes the touch display panel 120 in the handwriting display mode. Taking fig. 2C and fig. 2D as an example, the user object 10 first contacts the point SP2 of the touch display panel 120 and moves on the touch surface 122a, and then leaves the touch display panel 120 from the point EP2 to form a moving track T2. Thus, the touch display panel 120 generates the moving signals M2 with a number exceeding the preset number, so that the control module 110 determines that the touch display 100 is in the handwriting state and performs step S221.
It should be noted that, in the embodiment shown in fig. 2B, steps S211 and S213 may be omitted. That is, in other embodiments, the control method of the display mode may count only the number of the movement signals M2 and omit the step of calculating the contact time. In this way, when the number of the moving signals M2 is less than or equal to the preset number, the control module 110 can directly determine that the touch display 100 is not in the handwriting state, and perform step S222. When the number of the moving signals M2 exceeds the preset number, the control module 110 can directly determine that the touch display 100 is in the handwriting state, and perform step S221.
Fig. 3 is a flowchart illustrating a control method of a display mode according to another embodiment of the invention, wherein the control method in fig. 3 is also applicable to the touch display 100 in fig. 1. Referring to fig. 1 and 3, the embodiment shown in fig. 3 is similar to the previous embodiments, but the differences are mainly: the means for analyzing the touch input data is different (i.e., step S210). The control method of fig. 3 determines whether the touch display 100 is in a handwriting state by comparing the touch input data with the sample data pre-stored in the storage unit 112.
Specifically, the storage unit 112 of the control module 110 stores handwriting sample data, wherein the handwriting sample data may be touch input data as shown in fig. 2D and includes more than a predetermined number of movement signals M2. After the control module 110 receives the touch input data (i.e., step S201 in fig. 2A), step S311 is executed, and the control module 110 calculates a similarity between the touch input data and the handwriting sample data.
In step S311, the control module 110 may employ a string matching algorithm or a pattern matching algorithm to calculate the similarity. Next, step S312 is executed, and the processor 111 of the control module 110 determines whether the similarity exceeds a predetermined value. The predetermined value may be, for example, between 80% and 100%. However, the preset value can be adjusted according to different types of touch displays 100, and therefore the preset value is not limited to the foregoing range. When the similarity obtained in step S311 exceeds the predetermined value, the processor 111 determines that the touch display 100 is in the handwriting state, and performs step S221. Otherwise, when the similarity is below the predetermined value, the processor 111 determines that the touch display 100 is in the non-handwriting state, and performs step S222.
Fig. 4 is a flowchart illustrating a method for controlling a display mode according to another embodiment of the invention. Referring to fig. 4, the control method shown in fig. 4 is similar to the control method shown in fig. 3, except that the two methods differ only in that: the sample data compared with the touch input data is different. Specifically, in the present embodiment, the non-handwriting sample data is used to compare with the touch input data, wherein the storage unit 112 of the control module 110 stores the non-handwriting sample data in advance, and the non-handwriting sample data may be the touch input data as shown in fig. 2F and includes the movement signals M2 whose number is less than or equal to the predetermined number.
After the control module 110 receives the touch input data (i.e., step S201 in fig. 2A), step S411 is executed, and the processor 111 of the control module 110 calculates the similarity between the touch input data and the non-handwritten sample data. In step S411, the control module 110 may also use a string matching algorithm or a pattern matching algorithm to calculate the similarity.
Next, in step S412, the control module 110 determines whether the similarity exceeds a predetermined value. When the similarity obtained in step S311 exceeds the predetermined value, the control module 110 determines that the touch display 100 is in the non-handwriting state, and performs step S222. Otherwise, when the control module 110 determines that the similarity is below the predetermined value, the processor 111 determines that the touch display 100 is in the handwriting state, and performs step S221.
In summary, in the touch display according to at least one embodiment of the invention, the control module can analyze the touch input data generated by the touch display panel to determine whether the user writes on the touch display panel, so as to determine whether the touch display is in a handwriting state. Then, according to the state of the touch display, the touch display panel can automatically display an image by using a suitable display mode (i.e., a handwriting display mode or a non-handwriting display mode) to help reduce or avoid defects such as afterimage, flicker, delay or broken handwriting lines.
Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.
Claims (15)
1. A control method of a display mode is used for a touch display, wherein the touch display comprises a touch display panel and a control module electrically connected with the touch display panel, and the control method of the display mode comprises the following steps:
receiving touch input data from the touch display panel;
enabling the control module to analyze the touch input data to judge whether the touch display is in a handwriting state;
when the control module judges that the touch display is in the handwriting state, enabling the touch display panel to be in a handwriting display mode; and
and when the control module judges that the touch display is not in the handwriting state, enabling the touch display panel to be in a non-handwriting display mode.
2. The method as claimed in claim 1, wherein when an object contacts the touch display panel and moves on the touch display panel, the touch display panel generates at least one movement signal, and the step of the control module analyzing the touch input data comprises:
counting the number of the movement signals in the touch input data;
when the number of the mobile signals is smaller than a preset number, judging that the touch display is not in the handwriting state; and
and when the number of the mobile signals exceeds the preset number, judging that the touch display is in the handwriting state.
3. The method as claimed in claim 2, wherein when the object just touches the touch display panel, the touch display panel generates a touch signal; when the object contacting the touch display panel just leaves the touch display panel, the touch display panel generates a separation signal;
the step of analyzing the touch input data by the control module further comprises:
calculating a contact time between the touch signal and the release signal; and
and when the contact time is lower than the preset time, judging that the touch display is not in the handwriting state.
4. The method for controlling display mode according to claim 3, wherein the step of the control module analyzing the touch input data further comprises:
when the contact time exceeds the preset time and the number of the mobile signals does not exceed the preset number, judging that the touch display is not in the handwriting state; and
and when the contact time exceeds the preset time and the number of the mobile signals exceeds the preset number, judging that the touch display is in the handwriting state.
5. The method for controlling display mode according to claim 1, wherein the step of the control module analyzing the touch input data comprises:
calculating the similarity between the touch input data and the handwriting sample data;
when the similarity exceeds a preset value, judging that the touch display is in the handwriting state; and
and when the similarity is below the preset value, judging that the touch display is in the non-handwriting state.
6. The method for controlling display mode according to claim 1, wherein the step of the control module analyzing the touch input data comprises:
calculating the similarity between the touch input data and the non-handwritten sample data;
when the similarity exceeds a preset value, judging that the touch display is in the non-handwriting state; and
and when the similarity is below the preset value, judging that the touch display is in the handwriting state.
7. The method according to claim 5 or 6, wherein the similarity calculation method comprises a string matching algorithm or a pattern matching algorithm.
8. The method as claimed in claim 1, wherein the touch display panel has a plurality of pixels, and when the touch display panel is in the handwriting display mode, the touch display updates a corresponding portion of the plurality of pixels according to a position and a movement trajectory of an object.
9. A touch display, comprising:
a touch display panel, wherein the touch display panel generates touch input data when an object contacts the touch display panel; and
the control module is electrically connected with the touch display panel and used for analyzing the touch input data so as to judge whether the touch display is in a handwriting state;
when the touch display is judged to be in the handwriting state, the control module enables the touch display panel to be in a handwriting display mode;
and when the touch display is judged not to be in the handwriting state, the control module enables the touch display panel to be in a non-handwriting display mode.
10. The touch display of claim 9, wherein when the object contacts the touch display panel and moves on the touch display panel, the touch display panel generates at least one movement signal, and the control module counts the number of movement signals in the touch input data;
when the number of the moving signals is less than a preset number, the control module judges that the touch display is not in the handwriting state; and
when the number of the moving signals exceeds the preset number, the control module judges that the touch display is in the handwriting state.
11. The touch display of claim 10, wherein the touch display panel generates a touch signal when the object just touches the touch display panel; when the object contacting the touch display panel just leaves the touch display panel, the touch display panel generates a separation signal;
the control module calculates the contact time between the touch signal and the separation signal; and when the contact time is lower than the preset time, the control module judges that the touch display is not in the handwriting state.
12. The touch display of claim 11, wherein when the contact time exceeds the preset time and the number of the movement signals is less than or equal to the preset number, the control module determines that the touch display is not in the handwriting state; and
when the contact time exceeds the preset time and the number of the mobile signals exceeds the preset number, the control module judges that the touch display is in the handwriting state.
13. The touch display of claim 9, wherein the control module stores handwriting sample data and is configured to calculate a similarity between the touch input data and the handwriting sample data;
when the similarity exceeds a preset value, judging that the touch display is in the handwriting state; and
and when the similarity is below the preset value, judging that the touch display is in the non-handwriting state.
14. The touch display of claim 9, wherein the control module stores non-handwritten sample data and is configured to calculate a similarity between the touch input data and the non-handwritten sample data;
when the similarity exceeds a preset value, judging that the touch display is in the non-handwriting state; and
and when the similarity is below the preset value, judging that the touch display is in the handwriting state.
15. The touch display of claim 13 or 14, wherein the control module calculates the similarity using a string matching algorithm or a pattern matching algorithm.
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| CN1991720A (en) * | 2005-12-28 | 2007-07-04 | 中兴通讯股份有限公司 | Device for realizing automatic hand-write input |
| US20150294627A1 (en) * | 2014-04-15 | 2015-10-15 | Samsung Electronics Co., Ltd. | Device and method for controlling display |
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| CN1991720A (en) * | 2005-12-28 | 2007-07-04 | 中兴通讯股份有限公司 | Device for realizing automatic hand-write input |
| US20150294627A1 (en) * | 2014-04-15 | 2015-10-15 | Samsung Electronics Co., Ltd. | Device and method for controlling display |
| CN111552432A (en) * | 2020-04-29 | 2020-08-18 | 唐景贤 | Electronic equipment screen operating system and method |
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