CN101840279B - Method for correcting flexible plate - Google Patents

Abstract

The invention provides a method for correcting a flexible plate. The flexible plate includes at least one sensor. The method of the invention comprises the following steps: providing the flexible plate, wherein the flexible plate can be bent to form a specific shape; receiving a first deflection value, and measuring the first deflection value by the sensor when the flexible plate is formed into the specific shape; comparing the first deflection value with a comparison table; and transmitting a correction signal according to the comparison table so that the flexible board can execute an identification function according to the correction signal. When the flexible board is bent to form a specific shape, the flexible board can still normally perform the input touch function.

Description

Methods of Calibrating a Flex Board

technical field

The invention relates to a method for calibrating a flexible board, in particular to a method that when the flexible board is deflected into a specific shape, the flexible board can still normally perform the input touch function.

Background technique

The traditional display panel is made of rigid material and cannot be flexed, and its function is simply to display the output function of the surrounding electronic devices. Although the touch pad or touch display panel can be touched to perform certain functions, it is made of rigid material and cannot perform flexing actions.

If the flexible touch panel can have other additional functions, that is to use the flexible property, so that the flexible touch panel can have different functions when it is bent into different shapes. However, because the flexible board is flexible, the sensing of the touch input needs to be calibrated to provide more practicability for users.

Contents of the invention

To overcome the above defects, the present invention provides a method for calibrating a flexible board. The flexible board includes at least one sensor, and the sensor can be built in or attached to the flexible board to form a whole. The method of the present invention includes: providing the flexible board, and the flexible board can be flexed to form a specific shape; receiving a first deflection value, when the flexible board is formed into the specific shape, the first deflection value is measured by the sensor. A deflection value; comparing the first deflection value with the comparison table; and sending a correction signal according to the comparison table, so that the flexible plate performs an identification function according to the correction signal.

In this embodiment, the calibration signal includes a sensitivity signal, a false touch filter signal, a touch point offset signal or an ignore signal.

Preferably, the method of the present invention further includes: judging whether the specific shape of the flexible board has an overlapping portion; and if judging "yes", adjusting the correction signal.

The calibration signal can be changed according to the specific shape of the flexible plate.

In another preferred embodiment, the step of transmitting the correction signal according to the comparison table further includes: receiving a second deflection value, and after a certain time (for example, 0-20 seconds), the sensor measures the second deflection value ; judging whether a variation between the first and the second deflection value is within a deflection range; and if the judgment is “yes”, then sending the correction signal according to the comparison table. Preferably, the present invention can further determine whether the specific time is between 0-20 seconds; if the determination is "yes", the correction signal is sent.

In the above-mentioned embodiments, the flexible board mainly transmits the calibration signal according to the look-up table, so that the flexible board performs the identification function according to the calibration signal. However, the present invention can also define a correction signal according to the deflection shape of the flexible board itself, so that the flexible board can perform an identification function according to the correction signal.

Accordingly, the present invention provides a method of calibrating a flexible board. The flexible board includes a sensor. The sensor can be built into the flex board, while in one piece. The method of the present invention includes: providing the flexible board, and the flexible board can be flexed into a specific shape; receiving a first deflection value, measured by the sensor when the flexible board is formed into the specific shape The first deflection value; receiving a second deflection value, after a certain time, the sensor measures the second deflection value; judging a value between the first deflection value and the second deflection value Whether the variation is within a deflection range; and if it is judged as "yes", then sending a correction signal, so that the flexible plate performs an identification function according to the correction signal.

In the present invention, when the flexible board is bent to form a specific shape, the flexible board can still normally perform the input touch function.

Description of drawings

1A-1C and 4A-4B show several possible deflected shapes of the flexible board.

Figures 2A-2C show several possible flex shapes for a flex board with sensors.

Fig. 3A, Fig. 3B, Fig. 4, Fig. 5, Fig. 6A and Fig. 6B are flow charts of various embodiments of the method for calibrating a flexible plate according to the present invention.

And, the reference numerals in the above-mentioned accompanying drawings are explained as follows:

Flexible board 1, 2

Sensor 21-23

Overlap 41

Detailed ways

The invention provides a method for calibrating a flexible board. The flexible board includes at least one sensor, and the sensor can be built in or attached to the flexible board to form a whole. The method of the present invention includes: providing the flexible board, and the flexible board can be flexed to form a specific shape; receiving a first deflection value, when the flexible board is formed into the specific shape, the first deflection value is measured by the sensor. A deflection value; comparing the first deflection value with the comparison table; and sending a correction signal according to the comparison table, so that the flexible plate performs an identification function according to the correction signal.

In this embodiment, the calibration signal includes a sensitivity signal, a false touch filter signal, a touch point offset signal or an ignore signal.

Preferably, the method of the present invention further includes: judging whether the specific shape of the flexible board has an overlapping portion; and if judging "yes", adjusting the correction signal.

The calibration signal can be changed according to the specific shape of the flexible plate.

In another preferred embodiment, the step of transmitting the correction signal according to the comparison table further includes: receiving a second deflection value, and after a certain time (for example, 0-20 seconds), the sensor measures the second deflection value ; judging whether a variation between the first and the second deflection value is within a deflection range; and if the judgment is “yes”, then sending the correction signal according to the comparison table. Preferably, the present invention can further determine whether the specific time is between 0-20 seconds; if the determination is "yes", the correction signal is sent.

In the above-mentioned embodiments, the flexible board mainly transmits the calibration signal according to the look-up table, so that the flexible board performs the identification function according to the calibration signal. However, the present invention can also define a correction signal according to the deflection shape of the flexible board itself, so that the flexible board can perform an identification function according to the correction signal.

Accordingly, the present invention provides a method of calibrating a flexible board. The flexible board includes a sensor. The sensor can be built into the flex board, while in one piece. The method of the present invention includes: providing the flexible board, and the flexible board can be flexed into a specific shape; receiving a first deflection value, measured by the sensor when the flexible board is formed into the specific shape The first deflection value; receiving a second deflection value, after a certain time, the sensor measures the second deflection value; judging a value between the first deflection value and the second deflection value Whether the variation is within a deflection range; and if it is judged as "yes", then sending a correction signal, so that the flexible plate performs an identification function according to the correction signal.

Sensor 21 Sensor 22 Sensor 23 State a (Figure 2A shape) 0 0 0 State b (Figure 2B shape) 0 -1 0

State c (Figure 2C shape) -0.5 -0.5 0.5

Table 2 represents the settings of A-C for the flexible board to be bent into various specific shapes (states a-c).

Therefore, as long as the deflection value measured by the sensor is the same as that in Table 1, it means that the flexible board forms the specific shape, and then a specific set value is given according to the settings in Table 2 as a correction signal, and the flexible board can be made according to the specified shape. The calibration signal performs an identification function, as shown in step S54 of FIG. 5 . Furthermore, a specific set value is given according to the comparison table as a correction signal, and according to the correction signal, the flexible board will re-correspond to the internal positioning setting of the original touch plane and the bending plane, so as to perform a correct identification function.

For example, if the user bends the flexible board into a U-shape or cylindrical shape and puts it on the wrist (not shown), the flexible board may be pressed against the table due to the placement of the user's wrist. When the flexible board is pressed against the side of the table, the touch can be regarded as an error signal.

In another example, if the flexible board is bent into an arc, it is also necessary to correct the user's touch position due to the point offset of the touch point on the curved surface.

Similar to the above-mentioned FIG. 4 , since different parts may have different bending degrees during bending, the present invention can further judge whether there are overlapping parts, and give different setting values. For example, for the overlapping portion 41 in FIG. 4A or 4B , the setting of its sensitivity should be lowered, false touch filtering should be turned off, or even any touch action on the overlapping portion should be completely ignored.

In a preferred embodiment, in addition to directly transmitting the correction signal according to the look-up table, the present invention can also add a judgment of time factor before transmitting the correction signal. Please refer to FIG. 6A and FIG. 6B , steps S61-63 are similar to S51-53 in FIG. 5 , so the description will not be repeated.

In the embodiment shown in FIG. 6A , after step S63 , the second deflection value is received after a certain period of time, such as step S64 . This step is substantially similar to step S33 in FIG. 3A , so details are not repeated here.

For the next step S65, refer to the determination of step S34 in FIG. 3A above. The difference in this embodiment is that, when the determination in step S65 is "Yes", the process goes to step S67: according to the comparison table, a correction signal is transmitted, so that the flexible plate performs an identification function according to the correction signal.

Similarly, in the embodiment of FIG. 6B , time judgment is further added to transmit a more accurate calibration signal. As shown in Figure 6B, before step S67, step S66 is carried out: further judge whether the elapsed time between the first deflection value and the second deflection value is within a specific time, such as between 0-20 seconds; if judged If it is "Yes", the correction signal is sent according to the comparison table, as in step S67. In other words, if the specified time between the first deflection value and the second deflection value is too long, the comparison standard of the first deflection value must be reset, so if the judgment of step S66 is "No" , the flow returns to step S62: re-receiving the first deflection value.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, this The scope of protection of the invention should be determined by the scope defined by the appended claims.

Claims (17)

1. A method of calibrating a flexible board, wherein the flexible board includes at least one sensor, the method comprising: providing the flexible sheet, and the flexible sheet can be flexed into a specific shape; receiving a first deflection value, the first deflection value is measured by the at least one sensor when the flexible plate forms the specific shape; receiving a second deflection value, and after a certain period of time, the at least one sensor measures the second deflection value; judging whether a variation between the first deflection value and the second deflection value is within a deflection range; and If the determination is “yes”, then a calibration signal is sent, so that the flexible board executes a recognition function according to the calibration signal to recognize a touch input by the user. 2. The method of claim 1, wherein the calibration signal comprises a sensitivity signal, a false touch filter signal, a touch point offset signal or a ignore signal. 3. The method of claim 2, further comprising: determining whether the particular shape of the flexible board has an overlapping portion; and If the judgment is "yes", the correction signal is adjusted. 4. The method of claim 2, wherein the correction signal changes according to the specific shape of the flexible board. 5. The method of claim 1, wherein before transmitting the correction signal, it is further determined whether the specific time is between 0-20 seconds; if the determination is "yes", then the correction signal is transmitted. 6. The method of claim 1, wherein the sensor is built-in or attached to the flexible board. 7. The method of claim 1, wherein the sensor is a strain sensor, an optical sensor or a vibration sensor, wherein the strain sensor can be a piezoelectric sensor, a capacitive sensor, an inductive sensor or an resistive sensor. 8. The method according to claim 1, the flexible board is a flexible panel, and the flexible panel can be a flexible display, a liquid crystal display, an organic light emitting diode display, an electronic paper or a Transparent display. 9. A method of calibrating a flexible board, wherein the flexible board includes at least one sensor, the method comprising: providing the flexible sheet, and the flexible sheet can be flexed into a specific shape; receiving a first deflection value, the first deflection value is measured by the at least one sensor when the flexible plate forms the specific shape; comparing the first deflection value with a table; and According to the comparison table, a correction signal is sent, so that the flexible board executes a recognition function according to the correction signal to recognize a touch input of the user. 10. The method of claim 9, wherein the calibration signal comprises a sensitivity signal, a false touch filter signal, a touch point offset signal or a ignore signal. 11. The method of claim 10, further comprising: determining whether the particular shape of the flexible board has an overlapping portion; and If the judgment is "yes", the correction signal is adjusted. 12. The method of claim 10, wherein the correction signal changes according to the specific shape of the flexible board. 13. The method of claim 9, wherein the step of transmitting the calibration signal according to the look-up table further comprises: receiving a second deflection value, and after a certain period of time, the at least one sensor measures the second deflection value; judging whether a variation between the first deflection value and the second deflection value is within a deflection range; and If the judgment is "yes", the correction signal is transmitted according to the comparison table. 14. The method of claim 13, wherein before transmitting the correction signal, it is further determined whether the specific time is between 0-20 seconds; if the determination is "yes", then the correction signal is transmitted. 15. The method of claim 9, wherein the sensor is built into the flexible board. 16. The method of claim 9, wherein the sensor is a strain sensor, an optical sensor or a vibration sensor, wherein the strain sensor can be a piezoelectric sensor, a capacitive sensor, an inductive sensor or an resistive sensor. 17. The method according to claim 9, wherein the flexible board is a flex panel, and the flex panel can be a flex display, a liquid crystal display, an organic light emitting diode display, an electronic paper or an Transparent display.

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