TWI739673B - Touch-sensing display apparatus and cursor controlling methode of its touch pannel - Google Patents

Abstract

A touch-sensing display includes a screen, a touch-sensing panel and a controller used to execute steps as follows: a starting-position of an object triggering the touch-sensing panel is detected and a starting-coordinate of the starting-position is identified. A cursor is displayed on a first coordinate of the screen corresponding to the starting-coordinate. A first vector of the object moving from the starting-position to a first turning position on the touch panel. The cursor is moved along a first moving vector corresponding to the first vector with a first predetermined speed on the screen, until the object is stopped on the first turning position, so as to make the cursor ended up on a first virtual position having a first virtual coordinate. The coordinate of the cursor is then corrected from the first virtual coordinate to a second coordinate corresponding to the first turning position.

Description

Touch display device and cursor control method thereof

This disclosure relates to a display device and its data processing method, in particular to a touch display device and its cursor control method.

With the advancement of information electronics technology, in addition to traditional input devices such as mice, keyboards, keys, etc., a touch display device that integrates a touch panel (sensor) with a display screen allows users to watch the display screen At the same time, data input by touching the display screen and gestures has been widely used in portable electronic devices (for example, mobile phones, tablet computers, notebook computers, and smart watches).

When the touch display device performs a touch operation, it must track the start and end positions of the user's touch action or input gesture on the touch panel. If you cannot correctly track and interpret the trajectory of the touch or input gesture, it may cause the hand touch operation to fail. The cursor is a tool used to display the position of the user's current touch or input gesture relative to the image display screen. The user can treat the cursor as a pointer, and click the cursor to select data at a specific location on the image display screen to perform operations, so as to realize touch input.

In a small-size touch display device, since the touch panel and the display screen roughly overlap, the actual touch action or input gesture of the user is roughly the same as the position displayed by the cursor on the image display screen. Therefore, the trajectory of the user's touch action or input gesture is generally synchronized with and matched with the movement trajectory of the cursor displayed on the image display screen.

However, with the increase in the size of touch display devices, such as large touch display billboards, the user's operation methods have been changed. The user may only be able to perform touch operations in a sub-screen in a corner of the display screen. The sub-screen touch sensing area actually touched by the user may be much smaller than the display area of the main image frame on the display screen. This makes it difficult for the touch display device to track the trajectory of the touch action or the input gesture in real time, and further calculation is required to correctly locate the start and end points of the touch action or the input gesture corresponding to the position of the image display screen. Cause the user's actual touch action or input gesture trajectory to not match the cursor movement trajectory displayed in the main image screen, which may cause the cursor in the main image screen to display delays, and even cause the touch operation to fail. .

Therefore, there is a need to provide an advanced touch display device and its touch screen cursor control method to solve the problems faced by the prior art.

An embodiment of this specification discloses a cursor control method for a touch display device, which includes the following steps: firstly, detecting the starting position of the touch panel triggered by an object, and calculating the starting coordinates of the starting position; A cursor is displayed on the first coordinate corresponding to the start coordinate of the touch panel. Then detect the first vector of the object moving from the starting position to the first turning position on the touch panel; and on the display screen, The first preset speed moves the cursor along the first movement vector corresponding to the first vector until the object stops at the first turning position, so that the cursor reaches the first virtual coordinate on the display screen. Afterwards, the cursor is corrected from the first virtual coordinate to the second coordinate corresponding to the first turning position on the display screen.

Another embodiment of this specification discloses a touch display device. The touch display device includes a display screen, a touch panel, and a control circuit. Among them, the touch panel corresponds to the display screen. The control circuit is used to perform the following steps: first detect the start position of the touch panel triggered by the object, and calculate the start coordinates of the start position; on the display screen and the first coordinate corresponding to the start coordinates of the touch panel Display the cursor. Then detect the first vector of the object moving from the initial position to the first turning position on the touch panel; and on the display screen, follow the first movement vector corresponding to the first vector at the first preset speed Move the cursor until the object stops at the first turning position, so that the cursor reaches the first virtual coordinate on the display screen. Afterwards, the cursor is corrected from the first virtual coordinate to the second coordinate corresponding to the first turning position on the display screen.

According to the above-mentioned embodiment, the embodiment of this specification is to provide a touch display device and a cursor control method thereof. The start position of the touch panel is triggered by detecting an object (for example, the user's finger or touch control device), and the corresponding cursor start coordinates are displayed and calibrated synchronously on the display screen, and then the object is touched according to the object. The motion vector on the panel simulates the movement track of the cursor, and displays the moving cursor on the display screen in real time. When the movement of the object stops, according to the actual stopping position of the object on the touch panel, the terminal position of the cursor movement track is corrected to return to the correct coordinates corresponding to the actual stopping position of the touch panel.

Since the action of the object triggering the touch panel and the display of the movement track of the cursor can occur simultaneously, the user can instantly see the movement of the display cursor on the display screen. Therefore, it is possible to solve the problem that the display delay of the cursor in the prior art causes the failure of the touch operation.

200, 300, 400: touch display device

201, 301, 401: display screen

202, 302, 402: touch panel

203, 303, 403: control circuit

204, 304, 404: cursor

205, 305, 403: objects

206, 306, 406: starting position

207, 307, 407: first position

208, 308, 408: the first turning position

210, 310, 410: the first virtual location

220, 320, 330: second virtual location

218, 318, 418: second turning position

211: Touch sub-screen

212, 312, 412: first correct position

222, 322, 422: second correct position

228, 328, 428: third turning position

232, 332, 432: third correct position

(X ₀ , Y ₀ ), (X ₃₀ , Y ₃₀ ), (X ₄₀ , Y ₄₀ ): starting coordinates

(X ₁ , Y ₁ ): the first turning coordinate

(X ₂ , Y ₂ ): the second turning coordinate

(X ₃ , Y ₃ ): the third turning point

(X _m0 , Y _m0 ), (X _m30 , Y _m30 ), (X _m40 , Y _m40 ): the first coordinate

(X _m1 , Y _m1 ), (X _m31 , Y _m31 ), (X _m41 , Y _m41 ): the first virtual coordinate

(X _c1 , Y _c1 ), (X _c31 , Y _c31 ), (X _c41 , Y _c41 ): the first correct coordinate

(X _m2 , Y _m2 ), (X _m32 , Y _m32 ), (X _m42 , Y _m42 ): the second virtual coordinate

(X _c2 , Y _c2 ), (X _c32 , Y _c32 ), (X _c42 , Y _c42 ): the second correct coordinate

_{(X m3, Y m3),} (X m33, Y m33), (X m43, Y m43): third virtual coordinates

(X _c3 , Y _c3 ), (X _c33 , Y _c33 ), (X _c43 , Y _c43 ): the third correct coordinate

T1, T31, T41: the first vector

Tm1, Tm31, Tm41: the first movement vector

T2, T32, T42: second vector

Tm2, Tm42: second movement vector

T2, T32, T42: third vector

Tm3, Tm43: third movement vector

L1: The length of the object's movement track on the touch panel

Lm1: The length of the virtual movement track of the cursor on the display screen

Lr1: Proportional displacement of the cursor on the display screen

S11: Detect the start position of the touch panel triggered by the user’s finger or tools, and calculate the start coordinates of the start position

S12: Display the cursor on the first position of the display screen corresponding to the start position of the touch panel

S13: Detect the first vector of the object moving from the starting position to the first turning position on the touch panel

S14: On the display screen, move the cursor at the first preset speed along the first movement vector corresponding to the first vector until the object stops at the first turning position, so that the cursor reaches the first virtual coordinate on the display screen First virtual location

S15: Correct the cursor from the first virtual coordinate of the first virtual position to the first correct position corresponding to the first turning position on the display screen and having the first correct coordinate

In order to have a better understanding of the above and other aspects of this specification, the following specific examples are given in conjunction with the accompanying drawings and detailed descriptions are as follows: Figure 1 is a touch display device drawn according to an embodiment of this specification Step flow chart of the cursor control method; FIGS. 2A to 2D are schematic diagrams of multiple touch operation images of using a touch display device to execute the cursor control method shown in FIG. 1 according to an embodiment of this specification; Fig. 3 is a schematic diagram of a touch operation image of using another touch display device to execute the cursor control method shown in Fig. 1 according to another embodiment of this specification; and Fig. 4 is another implementation according to this specification For example, it shows a schematic diagram of a touch operation image using another touch display device to execute the cursor control method shown in FIG. 1.

This specification provides a touch display device and its cursor control method and system, which can solve the problem of the cursor display delay of the large-scale touch display device board in the prior art. In order to improve the above-mentioned embodiments and other purposes, features and advantages of this specification The points can be more obvious and easy to understand, and a number of preferred embodiments are specifically cited below, and are described in detail in conjunction with the accompanying drawings.

However, it must be noted that these specific implementation cases and methods are not intended to limit the present invention. The present invention can still be implemented using other features, elements, methods, and parameters. The preferred embodiments are only used to illustrate the technical features of the present invention, and not to limit the scope of the patent application of the present invention. Those with ordinary knowledge in this technical field will be able to make equivalent modifications and changes based on the description of the following specification without departing from the spirit of the present invention. In different embodiments and drawings, the same elements will be represented by the same element symbols.

Please refer to FIG. 1. FIG. 1 is a flow chart of a method for controlling a cursor on a touch display device according to an embodiment of this specification. In some embodiments of this specification, the cursor control method of the touch display device depicted in FIG. 1 can be applied to a touch display device having a touch panel and a display screen. Among them, the touch panel and the display screen have a relative position correspondence relationship with each other, and can be combined with each other in a variety of different forms.

For example, please refer to Figures 2A to 2D. Figures 2A to 2D are based on an embodiment of the present specification, showing the use of the touch display device 200 to perform multiple touch controls of the cursor control method shown in Figure 1 Schematic diagram of the operation image. The touch display device 200 includes a display screen 201, a touch panel 202 and a control circuit 203. The size of the touch panel 202 and the display screen 201 are approximately the same, and they overlap with each other. The control circuit 203 is electrically connected to the display screen 201 and the touch panel 202 respectively, and is used to perform the touch operation of the touch display device 200. When the user touches or touches with an object 205 such as a finger or a tool When the touch panel 202 is triggered by a gesture action, the control circuit 203 can be used to control the movement track and coordinate positioning of the cursor 204 displayed on the display screen 201 relative to the object 205.

In some embodiments of this specification, the touch display device 200 may be an externally mounted touch display panel, in which the touch panel 202 may be directly overlapped on the surface of the display screen 201 by an external method. In other embodiments of this specification, the touch display device 200 may be an in-cell touch display panel, in which the touch panel 202 is embedded in the display screen 201. For example, in one embodiment, the touch display device 200 may be an on-cell touch display panel in which the touch panel 202 is embedded on the upper or lower layer of the color filter substrate (not shown) of the display screen 201 . In another embodiment, the touch display device 200 may be an in-cell touch display panel in which the touch panel 202 is embedded in the thin film transistor structure of the LCD cell of the display screen 201.

The method for controlling the cursor 204 of the touch display device 200 includes the following steps: first, perform step S11 shown in FIG. 1 to detect the user’s finger or an object 205 such as a tool to trigger the start position 206 of the touch panel 202. And calculate the starting coordinates (X ₀ , Y ₀ ) of the starting position 206. And as described in step S12 in FIG. 1, the cursor 204 is displayed on the first position 207 on the display screen 201 corresponding to the starting position 206 of the touch panel 202 (starting coordinates (X ₀ , Y _{0 )).}

In this embodiment, the touch display device 200 may be a large-scale touch display billboard. Although the display screen 201 and the touch panel 202 of the touch display device 200 overlap each other, and each position on the display screen 201 has a touch function, the size of the two is too large for the user to directly touch or approach. Show most of screen 201 Location. Therefore, only in the corners of the display screen 201 close to the user, another touch sub-screen 211 corresponding to the display screen 201 can be opened to provide the user with touch operations. In other words, although the triggering of the touch panel 202 and the display of the cursor 204 are performed on the display screen 201 (with the touch panel 202), the start position 206 of the touch panel 202 and the display screen 201 are used to display the cursor The first position 207 of 204 is not located at the same position on the display screen 201 (as shown in FIG. 2A).

Among them, the touch sub-screen 211 and the display screen 201 respectively have a plane coordinate system corresponding to each other (for example, mapping each other). That is, for each point in the coordinate system of the touch sub-screen 211, a corresponding point can be found in the coordinate system of the display screen 201. _{For example, triggering the start coordinates (X 0} , Y ₀ ) of the start position 206 of the touch panel 202 _{can be matched with the first coordinates (X m0} , Y _m0) of the first position 207 of the display cursor 204 by means of coordinate mapping. ) Correspond to each other. And the image data of the cursor 204 is displayed on the first coordinate (X _m0 , Y _m0 ) of the display screen 201.

Next, proceed to step S13 shown in Figure 1 to detect the first movement of the object 205 on the touch panel 202 from the starting position 206 to the first turning position 208 (having the first turning coordinates (X ₁ , Y _{1 ))} A vector T1. And as shown in step S14 in Figure 1: On the display screen 201, along the first movement vector Tm1 corresponding to the first vector T1, move the cursor 204 at a first preset speed until the object 205 stops at the first movement vector Tm1. The turning position 208 makes the cursor 204 reach the first virtual position 210 _{with the first virtual coordinates (X m1} , Y _{m1) on the display screen 201.}

In some embodiments of this specification, the step of detecting the first vector T1 includes detecting the measurement coordinates of the object 205 after the object 205 changes its position during a measurement period (for example, the first turning position 208 of the first The turning coordinates (X ₁ , Y ₁ )), the first vector T1 is determined according to the starting coordinates (X ₀ , Y ₀ ) and the measurement coordinates (the first turning coordinates (X ₁ , Y _{1 )).} In said embodiment of the present embodiment, the first vector T1 starting coordinates (X _0, Y ₀₎ the amount of change between the two coordinates and the measurement coordinates (first corner coordinate _{(X 1, Y 1))} (X 1 -X ₀ , Y ₁ -Y ₀ ).

As shown in FIG. 2C, since the first preset speed of the cursor 204 moving along the first movement vector Tm1 on the display screen 201 is lower than the speed of the object 205 moving along the first vector T1 on the touch panel 202 quick. Therefore, the virtual movement track length of the cursor 204 on the display screen 201 (the distance between the first position 207 and the first virtual position 210) Lm1 and the movement track length of the object 205 on the touch panel 202 (the starting position 206 to the first virtual position 210) The distance between a turning position 208) L1 does not correspond to the coordinate ratio relationship between the touch sub-screen 211 and the display screen 201. The proportional length of the virtual movement of the cursor 204 on the display screen 201 (the length of the virtual movement trajectory Lm1/two plane coordinate system) is greater than the proportional length of the movement of the object 205 on the touch panel 202 (the length of the object movement trajectory L1/two The ratio of the plane coordinate system). In other words, the first virtual position 210 of the cursor 204 displayed on the display screen 201 is not the correct position of the object 205 at the first turning position 208 corresponding to the marking system on the display screen 201.

Then, step S15 shown in Figure 1 is performed, and the cursor 204 is _{corrected from the first virtual coordinates (X m1} , Y _m1 ) of the first virtual position 210 to the display screen 201 corresponding to the first turning position 208, and has The first correct position 212 of the first correct coordinates (X _c1 , Y _{c1 ).} In this embodiment, the virtual movement track length Lm1 of the cursor 204 on the display screen 201 is greater than the proportional displacement (the distance between the first position 207 and the first correct position 212) Lr1 of the cursor 204 on the display screen 201. Therefore, the cursor 204 must be moved from the first virtual position 210 to the first correct position 212 along the opposite direction of the first movement vector Tm1.

Subsequently, when the object 205 moves from the first turning position 208 on the touch panel 202 along the second vector T2 (X ₂ -X ₁ , Y ₂ -Y ₁ ) to the second turning position 218 (with the second turning coordinate ( X ₂ , Y ₂ )), the steps from step S13 to step S15 can be repeated, synchronously on the display screen 201, along the second movement vector Tm2 corresponding to the second vector T2, at the previous first preset speed Or the adjusted second preset speed, move the cursor 204 from _{the first correct position 212 with the first correct coordinates (X c1} , Y _c1 ) to the second virtual position with the second virtual coordinates (X _m2 , Y _m2 ) Location 220. After that, the cursor 204' at the second virtual position 220 is _{corrected from the second virtual coordinates (X m2} , Y _m2 ) of the second virtual position 220 to the display screen 201 corresponding to the second turning position 218 and has the second correctness. The second correct position 222 of the coordinates (X _c2 , Y _{c2 ).}

In some embodiments of this specification, the second preset speed is based on the virtual movement track length Lm1 of the cursor 204 on the display screen 201 and the proportional movement track length of the cursor 204 on the display screen 201 (first position 207 to correct The distance between the positions 212) Lr1 is adjusted. If the difference between the two exceeds a preset value, the first preset speed is increased or slowed to the second preset speed, and the cursor 204 is displayed at the second preset speed and moved to the second turning position 218. If the difference between the two does not exceed a preset value, the cursor 204 is still displayed at the first preset speed and the cursor 204 is moved to the second turning position 218. In this embodiment, the first preset speed is slowed down to the second preset speed, and the cursor 204 is moved from the first correct position 212 to the second virtual position 220 at the second preset speed.

In this embodiment (as shown in Fig. 2C), since the cursor 204 moves along the second movement vector Tm2 on the display screen 201 at the second preset speed, it is faster than the object 205 along the first movement on the touch panel 202. The speed of the two-vector T2 movement is still slow. Therefore, the length of the virtual movement track of the cursor 204 on the display screen 201 (the distance between the first correct position 212 and the second virtual position 220) Lm2 and the length of the movement track of the object 205 on the touch panel 202 (the first turning position) The distance between 208 and the second turning position 218) L2 does not correspond to the coordinate ratio relationship between the touch sub-screen 211 and the display screen 201. The proportional length of the virtual movement of the cursor 204 on the display screen 201 (the length of the virtual movement track Lm2/the ratio of the two-plane coordinate system) is smaller than the proportional length of the movement of the object 205 on the touch panel 202 (the length of the object movement track L2/two The ratio of the plane coordinate system).

In other words, the virtual movement track length Lm2 of the cursor 204 on the display screen 201 is smaller than the actual movement track length of the cursor 204 on the display screen 201 (the distance between the first correct position 212 and the second correct position 222) Lr2. Therefore, the cursor 204 must be moved forward from the second virtual position 220 to the second correct position 222 along the second movement vector Tm2.

As shown in FIG. 2D, the work piece 205 moves from the second turning position 218 on the touch panel 202 along the third vector T3 (X ₃ -X ₂ , Y ₃ -Y ₂ ) to the third turning position 228 ( With the third turning coordinates (X ₃ , Y ₃ )), the steps from step S13 to step S15 can be repeated, and synchronously on the display screen 201, along the third movement vector Tm3 corresponding to the third vector T3, follow the previous The second preset speed or the adjusted third preset speed moves the cursor 204 from _{the second correct position 222 with the second correct coordinates (X c2} , Y _c2 ) to the third virtual coordinate (X _m3 , Y _m3 ) at the third virtual position 230. Afterwards, the cursor 204 is _{corrected from the second virtual coordinates (X m3} , Y _m3 ) of the third virtual position 230 to the display screen 201 corresponding to the third turning position 228 and has the third correct coordinates (X _c3 , Y _c3 ) The third correct position 232.

In an embodiment of the present specification, the adjustment method of the third preset speed may be the same as the adjustment method of the second preset speed, and the same adjustment method will not be repeated here. In another embodiment of the present specification, the third preset speed may be obtained by calculating the average value of the first preset speed and the second preset speed.

After the user moves the cursor 204 to the selected position (for example, the third correct position 232) on the display screen 201 in the aforementioned manner, the user can click the cursor 204 to input a command to display the image at that position. Calculate the data.

It should be noted that the touch display device suitable for the cursor control method shown in FIG. 1 is not limited to this. For example, please refer to FIG. 3. FIG. 3 is a schematic diagram illustrating a touch operation image of using another touch display device 300 to execute the cursor control method shown in FIG. 1 according to another embodiment of the present specification. The structure and operation method of the touch display device 300 are substantially similar to those of the touch display device 200. The main difference is that the size of the touch display device 300 and the touch display device 200 are different, which results in a difference in touch operation methods.

In this embodiment, the touch display device 300 may be, for example, a touch display device built in a portable electronic device (for example, a mobile phone, a tablet computer, a notebook computer, a smart watch). Since the touch panel 302 and the display screen 301 overlap each other, and the size allows the user's finger or tool (object 305) to directly touch each corner of the display screen 301. Therefore, the user can enter various positions on the display screen 301 Perform touch operation without opening a sub-screen on the display screen 301 for touch operation.

In other words, the initial coordinates (X ₃₀ , Y ₃₀ ) of the initial position 306 and the first turning coordinates (X ₃₁ , Y ₃₁ ), the second turning coordinates (X ₃₂ , Y ₃₂ ) of the second turning position 318 and the third turning coordinates (X ₃₃ , Y ₃₃ ) of the third turning position 328 will correspond to the display screen 301 respectively The first coordinate of the first position 307 (X _m30 , Y _m30 ), the first correct coordinate of the first correct position 312 (X _c31 , Y _c31 ), the second correct coordinate of the second correct position 322 (X _c32 , Y _c32 ) and the third correct coordinates (X _c33 , Y _c33 ) of the third correct position 332 overlap.

At the same time, the control circuit 303 will also adopt the method shown in Figures 2A to 2D to match the movement trajectory of the finger or the tool (object 305) (for example, the first vector T31, the second vector T32, and the third vector). T33), synchronously display the movement track of the cursor 304 on the display screen 301. And move the cursor 304 along the first vector T31, the second vector T32 and the third vector T33, and the speed is faster (or slower) than the moving speed of the finger or the tool (object 305) from the first virtual position The first virtual coordinates (X _m31 , Y _m31 ) of 310 are corrected to the first correct coordinates (X _c31 , Y _c31 ) of the first correct position 312; the second virtual coordinates (X _m32 , Y _{m32) of the second virtual position 320} ) Corrected to the second correct coordinates (X _c32 , Y _c32 ) of the second correct position 322; and corrected from the third virtual coordinates (X _m32 , Y _m32 ) of the third virtual position 330 to the third correct position 332 Correct coordinates (X _c33 , Y _c33 ).

After the user moves the cursor 304 to the selected position (for example, the third correct position 332) on the display screen 301 in the aforementioned manner, the user can click the cursor 304 to input a command to display the image at that position. Data is calculated.

Please refer to FIG. 4. FIG. 4 is a schematic diagram illustrating a touch operation image of using another touch display device 400 to execute the cursor control method shown in FIG. 1 according to another embodiment of the present specification. The structure and operation method of the touch display device 400 are substantially similar to those of the touch display device 200. The main difference is that the touch panel 401 and the display screen 402 of the touch display device 400 can be separated from each other, and the two can be electrically connected. For example, the touch display device 400 may be a combination of a display screen without a touch function in a notebook computer and a touch panel 401 provided around the keyboard. In still other embodiments of the present specification, the touch panel 402 and the display screen 402 of the touch display device 400 can be separated from each other, and there is no electrical connection between the two; the touch panel and the display screen only use electromagnetic Or photoelectric signal coupling.

_{When the user triggers the starting position 406 (starting coordinates (X 40} , Y ₄₀ )) on the touch panel 401 with a finger or a tool (object 405), and it follows the first vector T41 and the second vector T42 in sequence And the third vector T43 moves to the first turning coordinates (X ₄₁ , Y ₄₁ ) of the first turning position 408, the second turning coordinates (X ₄₂ , Y ₄₂ ) of the second turning position 418, and the third turning position 428 At the same time as the three turning coordinates (X ₄₃ , Y ₄₃ )), the control circuit 403 will also adopt the method shown in Figures 2A to 2D to match the movement trajectory of the finger or the tool (object 405) (for example, the first A vector T41, a second vector T42, and a third vector T43), synchronously display the cursor 404 on the display screen 402, and place the cursor 404 along the lines corresponding to the first vector T41, the second vector T42, and the third vector T43. The first movement vector Tm41, the second movement vector Tm42, and the third movement vector Tm43 move to the first virtual coordinates (X _m41 , Y _{m41 ) of the first virtual position 410 and the second virtual coordinates (X m42} ) of the second virtual position 420 , Y _m42 ) and the third virtual coordinates (X _m42 , Y _m42 ) of the third virtual position 430; and the cursor 404 whose moving speed is faster (or slower) than the moving speed of the finger or the tool (object 405), respectively, _Corrected from the first virtual coordinates (X m41, Y _m41 ) of the first virtual position 410 to the first correct coordinates (X _c41 , Y _c31 ) of the first correct position 412; from the second virtual coordinates of the second virtual position 420 ( X _m42 , Y _m42 ) are corrected to the second correct coordinates (X _c42 , Y _c42 ) of the second correct position 422; and the third virtual coordinates (X _m42 , Y _m42 ) of the third virtual position 430 are corrected to the third correct The third correct coordinate of position 432 (X _c43 , Y _c43 ).

After the user moves the cursor 404 to the selected position (for example, the third correct position 432) on the display screen 401 in the aforementioned manner, the user can click the cursor 404 to input a command to display the image at that position. Data is calculated.

According to the above-mentioned embodiment, the embodiment of this specification is to provide a touch display device and a cursor control method thereof. The start position of the touch panel is triggered by detecting an object (for example, the user's finger or touch control device), and the corresponding cursor start coordinates are displayed and calibrated synchronously on the display screen, and then the object is touched according to the object. The motion vector on the panel simulates the movement track of the cursor, and displays the moving cursor on the display screen in real time. When the movement of the object stops, according to the actual stopping position of the object on the touch panel, the terminal position of the cursor movement track is corrected to return to the correct coordinates corresponding to the actual stopping position of the touch panel.

Since the action of the object triggering the touch panel and the display of the movement track of the cursor can occur simultaneously, the user can instantly see the movement of the display cursor on the display screen. Therefore, it is possible to solve the problem that the display delay of the cursor in the prior art causes the failure of the touch operation.

Although the present invention has been disclosed as above in preferred embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field will not depart from the present invention. Within the spirit and scope of the invention, some changes and modifications can be made. Therefore, the scope of protection of the invention shall be subject to the scope of the attached patent application.

S11: Detect the start position of the touch panel triggered by the user’s finger or tools, and calculate the start coordinates of the start position

S12: Display the cursor on the first position of the display screen corresponding to the start position of the touch panel

S13: Detect the first vector of the object moving from the starting position to the first turning position on the touch panel

S14: On the display screen, move the cursor at the first preset speed along the first movement vector corresponding to the first vector until the object stops at the first turning position, so that the cursor reaches the first virtual coordinate on the display screen First virtual location

S15: Correct the cursor from the first virtual coordinate of the first virtual position to the first correct position corresponding to the first turning position on the display screen and having the first correct coordinate

Claims (16)

A cursor control method for a touch display device, comprising: detecting an object triggering an initial position of a touch panel, and calculating an initial coordinate of the initial position; on a display screen and the initial position of the touch panel A cursor is displayed on a first coordinate corresponding to the coordinates; a first vector that detects the movement of the object on the touch panel from the starting position to a first turning position; on the display screen, a first vector The preset speed is to move the cursor along a first movement vector corresponding to the first vector until the object stops at the first turning position, so that the cursor reaches a first virtual coordinate on the display screen; and The cursor is corrected from the first virtual coordinate to a second coordinate corresponding to the first turning position on the display screen. The cursor control method for a touch screen according to claim 1, further comprising: detecting a second vector that the object moves from the first turning position to a second turning position on the touch panel; On the screen, move the cursor along a second movement vector corresponding to the second vector at a second preset speed until the object stops at the second turning position, so that the cursor reaches a point on the display screen Second virtual coordinates; and The cursor is corrected from the second virtual position to the second turning position corresponding to a third coordinate of the display screen. The cursor control method for a screen control according to claim 2, wherein a first distance between the first coordinate and the second coordinate is smaller than a first virtual distance between the first coordinate and the first virtual coordinate . The cursor control method for a touch screen as described in claim 3 further includes adjusting the second preset speed according to a difference between the first distance and the first virtual distance. The cursor control method for a touch screen according to claim 3, further comprising adjusting the movement on the touch panel from the second turning point according to an average value of the first preset speed and the second preset speed A third preset speed to a third turning point. The cursor control method for a touch screen according to claim 1, wherein a first distance between the first coordinate and the second coordinate is greater than a first virtual coordinate between the first coordinate and the first virtual coordinate distance. The method for controlling a cursor on a touch screen according to claim 1, wherein the step of displaying the cursor on the first coordinate of the display screen includes: Mapping the start coordinate of the touch panel to the first coordinate displayed on the display screen; and displaying an image data of the cursor on the first coordinate. The cursor control method for a touch screen according to claim 1, wherein the step of detecting the first vector includes detecting a measurement coordinate of the object at a measurement time, and according to the start coordinate and the measurement The coordinates determine the first vector. A touch display device includes: a display screen; a touch panel corresponding to the display screen; and a control circuit for detecting an object triggering a starting position of the touch panel, and calculating the starting position A starting coordinate of the position; displaying a cursor on a first coordinate corresponding to the starting coordinate of the touch panel on the display screen; detecting the object on the touch panel from the starting coordinate to a first A first vector of the turning position movement; on the display screen, at a first preset speed, move the cursor along a first movement vector corresponding to the first vector until the object stops at the first The turning position so that the cursor reaches a first virtual coordinate on the display screen; and The cursor is corrected from the first virtual coordinate to a second coordinate corresponding to the first turning position on the display screen. The touch display device according to claim 9, wherein the control circuit further includes a second vector for detecting the movement of the object on the touch panel from the first turning position to a second turning position; On the display screen, move the cursor along a second movement vector corresponding to the second vector at a second preset speed until the object stops at the second turning position, so that the cursor reaches the display screen And correcting the cursor from the second virtual position to the second turning position corresponding to a third coordinate of the display screen. The touch display device according to claim 10, wherein a first distance between the first coordinate and the second coordinate is smaller than a first virtual distance between the first coordinate and the first virtual coordinate. The touch display device according to claim 11, wherein the control circuit further comprises: adjusting the second preset speed according to a difference between the first distance and the first virtual distance. The touch display device according to claim 11, wherein the control circuit further comprises: according to an average value of the first preset speed and the second preset speed, adjust the slave on the touch panel The second turning point moves to a third preset speed at a third turning point. The touch display device according to claim 9, wherein a first distance between the first coordinate and the second coordinate is greater than a first virtual distance between the first coordinate and the first virtual coordinate. The touch display device according to claim 9, wherein the display screen and the touch panel are overlapped or not overlapped with each other, and the control circuit further comprises: mapping the start coordinates of the touch panel to the display Displaying the first coordinate on the screen; and displaying an image data of the cursor on the first coordinate. The touch display device according to claim 9, wherein the control circuit further includes a measurement coordinate for detecting the object at a measurement time, and determining the first coordinate according to the starting coordinate and the measurement coordinate One vector.

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