TWI465971B - Electronic apparatus and controlling method thereof - Google Patents

Description

Electronic device and its control method

The present invention relates to an electronic device having a touch function, and more particularly to an electronic device that provides convenience for a user's touch operation and a method of controlling the same.

In recent years, with the continuous advancement of technology, the consumer market has continued to innovate, and various manufacturers have introduced various portable electronic devices with different functions and shapes, such as smart phones, tablets and other products. In order to enhance the convenience of the user in operating the portable electronic devices, most of the portable electronic devices are provided with a human interface of the touch screen.

Since the portable electronic device is characterized by being light and thin, and easy to carry, in general, the size of the screen is usually not large. For example, the size of a smartphone's screen is usually about 3 to 4 inches, while the screen size of a tablet is usually about 7 to 10 inches. Therefore, in order to be able to clearly view the image or text information in the screen displayed on the screen, the user must frequently use the screen image enlargement and reduction function.

Traditionally, the portable electronic device with touch function has the following types of designs for zooming in and out of the touch screen:

(1) As shown in FIG. 1 , the touch screen 90 of the portable electronic device 9 will display an enlarged icon + and a reduced icon - when the user touches the enlarged icon on the screen 90 + or zooms out In the area of the illustration - the screen F displayed on the screen 90 will correspondingly enlarge or reduce the effect. However, the portable electronic device 1 of this type has the disadvantage that the area of the screen 90 that displays the enlarged image and the reduced image has occupied a large layout of the screen displayed on the screen 90, and the user needs to find the screen first. On the 90, the area of the enlarged icon + or the reduced icon - is displayed, and then the finger is moved to touch the area of the enlarged icon + or the reduced icon - to enlarge or reduce the object F in the picture, for the user, Not only is it difficult to select and it is quite inconvenient.

(2) Referring to FIG. 2A to FIG. 2C, when the two fingers of the user respectively touch different positions A and B on the touch screen 90 of the portable electronic device 9, the user can move the two fingers to the respective positions. The object F displayed by the screen 90 in the position A' and B' is correspondingly enlarged to the object F' in FIG. 2B; similarly, the user can also move the two fingers to the position respectively. The zoom gesture of A" and B" controls the object F displayed on the screen 90 in Fig. 2A correspondingly to the object F" in Fig. 2C. This is the most common touch operation mode, however, the user except In addition to touching the screen 90 with two fingers, it is also necessary to move the two fingers to change the relative position between the two fingers. During this movement, it is very easy to cause the picture to be enlarged or reduced due to the unstable contact between the finger and the screen 90. In addition, when the user wants to enlarge the screen to the maximum or to the minimum, the finger may need more than two movements to achieve, and the action is quite complicated.

(3) Please refer to FIG. 3A to FIG. 3F, assuming that the touch screen 90 of the original portable electronic device 9 is placed at an angle as shown in FIG. 3A, when the two fingers of the user are respectively connected to the portable as in FIG. 3B. When the electronic device 9 touches the different positions A and B on the screen 90, the user can control the object F displayed on the screen 90 of FIG. 3B to be correspondingly enlarged as shown in FIG. 3C by tilting the angle of the screen 90 counterclockwise. Figure F is an object F'. Similarly, the user can control the object F displayed on the screen 90 of FIG. 3B to be correspondingly reduced to the object F of FIG. 3F by tilting the angle of the screen 90 clockwise as in FIG. 3E. However, in practical applications, Once the user changes the tilt angle of the screen 90, it is easy to affect the user's viewing angle of the screen 90, so that the user cannot clearly see the screen content displayed on the screen 90, and even needs to stretch or shrink the neck to match the screen 90. The tilt angle can be seen. If the screen 90 is frequently swung to enlarge or reduce the screen displayed on the screen 90, the user is more inconvenient to read.

Accordingly, the present invention provides an electronic device and a method of controlling the same to solve the problems encountered in the prior art described above.

An embodiment of the invention is an electronic device. In this embodiment, the electronic device includes a screen, a detection module, a comparison module, and an enlargement/reduction module. The screen is used to display an image. The detection module is configured to detect a corresponding operating distance between the first object and the second object that are simultaneously located above the screen. The comparison module is coupled to the detection module for comparing the operation distance with the first preset distance. The enlargement/reduction module is configured to selectively enlarge or reduce the image displayed on the screen according to the comparison result of the comparison module. Wherein, when the comparison result of the comparison module is that the operation distance is greater than the first preset distance, the enlargement/reduction module is to enlarge the image displayed by the screen, and when the comparison result of the comparison module is that the operation distance is less than or equal to the first preset When zoomed in, the zoom in/out module reduces the image displayed on the screen.

Another embodiment of the present invention is an electronic device manipulation method. In this embodiment, the electronic device manipulation method is used to control an electronic device having a screen. The electronic device control method comprises the following steps: First, the screen displays an image; secondly, the method detects a corresponding operating distance between the first object and the second object simultaneously located above the screen. Next, the method compares the operational distance with the first predetermined distance. Thereafter, the method selectively enlarges or reduces the image displayed on the screen based on the comparison result described above.

Compared with the prior art, through the electronic device and the control method thereof, when the user wants to enlarge or reduce the screen displayed on the screen, the user only needs to touch the two fingers to any two different positions on the screen, the electronic device. That is, according to the distance between the two fingers and the preset distance, and according to the comparison result, the screen displayed on the screen can be selectively enlarged or reduced, without touching the zoom-in and zoom-out specific position on the screen, and no need to be above the screen. Pull or pull the distance between the two fingers or change the tilt angle of the screen. When the user wants to continuously enlarge or reduce the picture, the two fingers only need to maintain the original touch action continuously, and the two fingers do not need any movement. For the user, the electronic device of the present invention and its control method are indeed quite simple, intuitive and user-friendly. In addition, the user can also personalize the operation by setting the preset distance and scaling the number of segments and the zoom ratio.

The advantages and spirit of the present invention will be further understood from the following detailed description of the invention.

An embodiment of the invention is an electronic device. In an actual application, the electronic device may preferably be a portable electronic device with a touch screen function, such as a smart phone with a touch screen, a tablet computer, a personal digital assistant (PDA), etc., but not Limited. Please refer to FIG. 4A and FIG. 4B . FIG. 4A and FIG. 4B are respectively a schematic diagram and a functional block diagram of the electronic device.

As shown in FIG. 4A and FIG. 4B , the electronic device 1 includes a housing 10 , a screen 12 , a detection module 14 , a comparison module 16 , an enlargement/reduction module 18 , and a storage module 20 . The comparison module 16 is coupled to the detection module 14; the amplification/reduction module 18 is coupled to the comparison module 16 and the screen 12; and the storage module 20 is coupled to the comparison module 16. Next, the functions of the respective modules of the electronic device 1 will be described in detail.

In this embodiment, the screen 12 of the electronic device 1 is preferably a liquid crystal display with a touch function disposed on the housing 10, but is not limited thereto. The material and appearance of the casing 10 of the electronic device 1 are not particularly limited. The screen 12 is used to display any screen, such as images, photos, icons, web pages, menu pages, tablecloths, etc., without any particular limitation.

As shown in FIG. 5A, when the first object M1 and the second object M2 are simultaneously located (for example, at the first time) above the screen 12 of the electronic device 1, the detecting module 14 of the electronic device 1 will automatically detect A corresponding operational distance D1 between the first object M1 and the second object M2 is measured. In this embodiment, the first object M1 and the second object M2 are two fingers of the user performing a touch operation on the screen 12 of the electronic device 1, but are not limited thereto. In fact, the first object M1 and the second object M2 can be respectively located above the image displayed by the screen 12, above the diagonal of the screen 12, above the same side of the screen 12, and above the different sides of the screen 12. one of them. That is to say, the two fingers of the user can simultaneously touch any two different positions on the screen 12 without any particular limitation.

Then, the comparison module 16 compares the operation distance D1 with the first preset distance, thereby determining that the operation distance D1 between the first object M1 and the second object M2 is greater than the first preset distance, or less than or equal to The first preset distance. In practical applications, the first preset distance may be a preset value of the system or may be set by the user through a setting module (for example, a human machine interface, not shown), and there is no specific limitation. The first preset distance can be stored in the storage module 20 for access by the comparison module 16 as needed. For the convenience of the user's operation, taking a smart phone or a tablet as an example, the first preset distance is preferably set to be about 2 to 3 cm, that is, the operating distance is slightly larger than when the user's two fingers are close together. The length, but not limited to this.

In this embodiment, the enlargement/reduction module 18 is configured to selectively enlarge or reduce the image displayed on the screen 12 according to the comparison result of the comparison module 16. When the comparison result of the comparison module 16 is that the operation distance D1 between the first object M1 and the second object M2 is greater than the first preset distance, the enlargement/reduction module 18 will display the screen 12 of FIG. 5A. The object F is enlarged to be the object F1 as shown in FIG. 5B; when the comparison result of the comparison module 16 is that the operation distance D1 between the first object M1 and the second object M2 is less than or equal to the first preset distance, the enlargement/reduction mode Group 18 will reduce the object F displayed on screen 12 of Figure 5A to object F2 as in Figure 5C.

For example, if the first preset distance is preset to be 3 cm, when the position of the user's two fingers touching the screen 12 is very close, the comparison module 16 will determine that the operating distance between the two fingers is less than 3 cm. The zoom in/out module 18 will reduce the image displayed on the screen 12; when the user touches the screen 12 at a relatively long position, the comparison module 16 will determine that the operating distance between the two fingers is greater than 3 cm. The enlargement/reduction module 18 magnifies the image displayed on the screen 12. Therefore, the user only needs to touch the screen 12 of the electronic device 1 with two fingers, and the zoom of the image displayed by the screen 12 can be controlled by the distance between the positions where the two fingers touch the screen 12, and the user does not need it at all. As in the prior art, a gesture of moving a finger is also made above the screen 12, which is convenient in operation.

In an actual application, the enlargement/reduction module 18 enlarges or reduces the magnification or the reduction ratio of the image displayed on the screen 12 according to the comparison result of the comparison module 16 may be a system preset value or a user through the setting module (not As shown in the figure, there are no specific restrictions. According to the above example, if the preset image magnification of the system is 4 times, when the comparison module 16 determines that the operation distance between the two fingers of the user is greater than 3 cm, the enlargement/reduction module 18 displays the screen 12 The image is magnified 4 times; if the user sets the image magnification by the setting module (not shown) to the maximum magnification (for example, 16 times) that the image can be enlarged, the comparison module 16 determines the user's two fingers. When the operation distance is greater than 3 cm, the enlargement/reduction module 18 enlarges the image displayed on the screen 12 to the maximum magnification (16 times) that the image can be enlarged. Similarly, the enlargement/reduction module 18 can reduce the operation of the image displayed on the screen 12, and details are not described herein.

The above embodiment describes only the operation of the electronic device 1 at the first time. In fact, the enlargement/reduction module 18 of the electronic device 1 can also enlarge or reduce the image displayed on the screen 12 a plurality of times in a segmented manner at different times. Please refer to FIG. 6A to FIG. 6C . FIG. 6A to FIG. 6C are schematic diagrams showing the images displayed by the screen in multiple steps in a segmented manner at different times.

As shown in FIG. 6A, it is assumed that, at the first time, the comparison result of the comparison module 16 is that the operation distance D1 between the two fingers M1 and M2 is greater than the first preset distance, and the enlargement/reduction module 18 of the electronic device 1 The object F displayed on the screen 12 in Fig. 6A is magnified twice as the object F1 of Fig. 6B. If the user thinks that the magnification is still not clear enough, as shown in FIG. 6B, in the second time, the user can maintain the two fingers M1 and M2, and the comparison result of the comparison module 16 is still two fingers M1. The operation distance D1 between the M2 and the M2 is greater than the first predetermined distance, and the enlargement/reduction module 18 of the electronic device 1 magnifies the object F1 of FIG. 6B by a factor of two to become the object F2 of FIG. 6C. At this time, the object F2 of FIG. 6C is four times larger than the object F of the original FIG. 6A. If the user thinks that the magnification of 4 times is still not clear enough, as shown in FIG. 6C, in the third time, the user continues to maintain the two fingers M1 and M2, and the comparison result of the comparison module 16 is still two fingers M1. The operation distance D1 between the M2 and the M2 is greater than the first preset distance, and the enlargement/reduction module 18 of the electronic device 1 further enlarges the object F2 of FIG. 6C by a factor of two to become the object F3 of FIG. 6D. At this time, the object F3 of FIG. 6D is eight times larger than the object F of the original FIG. 6A.

By analogy, after a plurality of amplification processes, the enlargement/reduction module 18 of the electronic device 1 can enlarge the image displayed on the screen 12 to the maximum magnification (for example, 16 times) that the image can be enlarged. Similarly, the enlargement/reduction module 18 can reduce the operation of the image displayed on the screen 12 in a segmented manner at different times, and will not be further described herein. The magnification or reduction ratio at the time of each enlargement or reduction processing may be a preset value of the system or set by the user, and there is no particular limitation.

Therefore, if the user wants to gradually enlarge the image originally displayed on the screen 12, it is only necessary to maintain the position where the two fingers M1 and M2 are originally placed on the screen 12, so that the operations of the M1 and M2 between the two fingers are performed. The distance can be maintained at a different state than the first preset distance at different times. It is not necessary to make a gesture of moving the finger multiple times above the screen 12 as in the prior art, so the operation is convenient. It should be noted that when the user touches the screen 12, slight jitter or movement error may occur, but these jitters or movements are acceptable errors and should not affect the comparison result of the comparison module 16.

In addition to the above-mentioned methods of zooming in or out according to different time segments, the present invention also proposes a method of zooming in or out according to different operating distances, which is described in detail below.

In an embodiment, after the detection module 14 of the electronic device 1 automatically detects the corresponding operation distance D1 between the first object M1 and the second object M2, the comparison module 16 compares the operation distance D1. In addition to the first preset distance, the operating distance D1 and the second preset distance are also compared. The second preset distance is greater than the first preset distance. In practice, the first preset distance and the second preset distance may be stored in the storage module 20 for access by the comparison module 16 when needed, but not limited thereto.

If the comparison result of the comparison module 16 is that the operation distance D1 is greater than the second preset distance, the enlargement/reduction module 18 enlarges the image displayed by the screen 12 to the first magnification; if the comparison result of the comparison module 16 is the operation distance The D1 is smaller than the second preset distance but larger than the first preset distance, and the enlargement/reduction module 18 enlarges the image displayed on the screen 12 to the second magnification. If the comparison result of the comparison module 16 is that the operation distance D1 is smaller than the first preset distance, the enlargement/reduction module 18 reduces the image displayed by the screen 12. Wherein, the first magnification is higher than the second magnification, and the ratio between the first magnification and the second magnification is related to the first preset distance and the second preset distance. That is, the ratio between the first magnification and the second magnification may be equal to a ratio between the first preset distance and the second preset distance, or a ratio between the first preset distance and the second preset distance. Multiples, but not limited to this.

It is assumed that the second preset distance is 6 cm and the first preset distance is 3 cm, the first magnification is 8 times and the second magnification is 4 times. As shown in FIG. 7A, if the operation distance D1 between the two fingers M1 and M2 is 10 cm, since the comparison result of the comparison module 16 is that the operation distance D1 is greater than 6 cm, the enlargement/reduction module 18 will take FIG. 7A. The object F displayed on the screen 12 is magnified 8 times as the object F1 of Fig. 7B. As shown in FIG. 7C, if the operation distance D2 between the two fingers M1 and M2 is 4 cm, since the comparison result of the comparison module 16 is that the operation distance D2 is less than 6 cm but greater than 3 cm, the enlargement/reduction module 18 will The object F displayed on the screen 12 in Fig. 7C is magnified four times to the object F2 of Fig. 7D. As shown in FIG. 7E, if the operation distance D3 between the two fingers is 2 cm, since the comparison result of the comparison module 16 is that the operation distance D3 is less than 3 cm, the enlargement/reduction module 18 will display the screen in FIG. 7E. The object F displayed in 12 is reduced to the object F3 of Fig. 7F.

In addition, if the user wants to directly enlarge the object F displayed on the screen 12 in FIG. 7A to the maximum magnification (for example, 16 times), the first magnification may be set to the maximum magnification that the object F can enlarge in advance. The operation distance D1 between the two fingers M1 and M2 is greater than the second preset distance of 6 cm, and the enlargement/reduction module 18 will directly enlarge the object F displayed on the screen 12 in FIG. 7A to the maximum magnification, but not Limited.

In another embodiment, after the detecting module 14 of the electronic device 1 automatically detects the corresponding operating distance D1 between the first object M1 and the second object M2, the comparing module 16 compares the operating distance D1. In addition to the first preset distance, the operating distance D1 and the second preset distance and the third preset distance are also compared. The third preset distance is greater than the second preset distance and the second preset distance is greater than the first preset distance. In practice, the first preset distance, the second preset distance, and the third preset distance may be stored in the storage module 20 for access by the comparison module 16 when needed, but not limited thereto.

If the comparison result of the comparison module 16 is that the operation distance D1 is greater than the third preset distance, the enlargement/reduction module 18 enlarges the image displayed by the screen 12 to the first magnification; if the comparison result of the comparison module 16 is the operation distance D1 is smaller than the third preset distance but larger than the second preset distance, and the enlargement/reduction module 18 enlarges the image displayed by the screen 12 to the second magnification; if the comparison result of the comparison module 16 is the operation distance D1 is smaller than the second The preset distance is greater than the first preset distance, and the enlargement/reduction module 18 enlarges the image displayed by the screen 12 to the third magnification; if the comparison result of the comparison module 16 is that the operation distance D1 is smaller than the first preset distance, The enlargement/reduction module 18 reduces the image displayed on the screen 12.

Wherein, the first magnification is higher than the second magnification and the second magnification is higher than the third magnification, and the ratio between the first magnification, the second magnification and the third magnification is the first preset distance and the second preset The distance is related to the third preset distance. That is, the ratio between the first magnification, the second magnification, and the third magnification may be equal to a ratio between the first preset distance, the second preset distance, and the third preset distance, or the first preset distance. a multiple of the ratio between the second preset distance and the third preset distance, but not limited thereto.

It is assumed that the first preset distance is 3 cm, the second preset distance is 6 cm, and the third preset distance is 9 cm, the first magnification is 16 times, the second magnification is 8 times, and the third magnification is 4 times. As shown in FIG. 8A, if the operation distance D1 between the two fingers M1 and M2 is 12 cm, and the comparison result of the comparison module 16 is that the operation distance D1 is greater than 9 cm, the enlargement/reduction module 18 will be the screen of FIG. 8A. The object F displayed by 12 is magnified 16 times as the object F1 of Fig. 8B. As shown in FIG. 8C, if the operating distance D2 between the two fingers M1 and M2 is 7 cm, and the comparison result of the comparison module 16 is that the operating distance D2 is less than 9 cm but greater than 6 cm, the enlargement/reduction module 18 will The object F displayed on the screen 12 of Fig. 8C is magnified eight times as the object F2 of Fig. 8D. As shown in FIG. 8E, if the operating distance D3 between the two fingers M1 and M2 is 4 cm, and the comparison result of the comparison module 16 is that the operating distance D3 is less than 6 cm but greater than 3 cm, the enlargement/reduction module 18 will The object F displayed on the screen 12 of Fig. 8E is magnified four times as the object F3 of Fig. 8F. As shown in FIG. 8G, if the operation distance D4 between the two fingers M1 and M2 is 2 cm, and the comparison result of the comparison module 16 is that the operation distance D4 is less than 3 cm, the enlargement/reduction module 18 will be the screen of FIG. 8G. The object F displayed in 12 is reduced to the object F4 of Fig. 8H.

In addition, it should be particularly noted that since the image displayed on the screen 12 may include a plurality of image areas, the enlargement/reduction module 18 can not only enlarge or reduce the entire image but also a specific image. The image area or object is enlarged or reduced. In fact, the specific image area or object is preset by the system, and the position of the specific image area displayed on the screen 12 corresponds to the first object M1 and the second object M2, but is not limited thereto. .

Another embodiment of the present invention is an electronic device manipulation method. In this embodiment, the electronic device control method is used to control a portable electronic device with a touch screen, such as a smart phone with a touch screen, a tablet computer, a personal digital assistant (PDA), etc., but not This is limited. Please refer to FIG. 9. FIG. 9 is a flow chart showing a method for controlling an electronic device according to this embodiment.

As shown in FIG. 9, first, in step S10, an image is displayed on the screen. Next, the method performs step S12 to detect a corresponding operating distance between the first object and the second object that are simultaneously located above the screen. In fact, the first object and the second object system can be respectively located above the image displayed on the screen, above the diagonal of the screen, above the same side of the screen, and above the different sides of the screen, but not This is limited to this. Next, the method performs step S14, comparing the operation distance with the first preset distance, and determining whether the operation distance is greater than the first preset distance. Thereafter, the method performs step S16A or 16B, and enlarges the image displayed on the screen when the operation distance is greater than the first preset distance (step S16A), and conversely, reduces the image displayed on the screen (step S16B). The method performs step S18 to detect whether the first object and the second object are still in contact at the same time or above the screen; if yes, return to step S12.

Referring to FIG. 10, in an embodiment, first, in step S20, an image is displayed on the screen. Next, the method performs step S22 to detect a corresponding operating distance between the first object and the second object that are simultaneously located above the screen. Different from the foregoing embodiment, the method next performs steps S24A and S24B, compares the operation distance with the first preset distance and the second preset distance, and then selectively performs steps S26A, S26B or according to the comparison result. S26C. Step S28 detects whether the first object and the second object are still in contact with or near the top of the screen; if yes, returning to step S22.

The second preset distance is greater than the first preset distance. If the operation distance is greater than the second preset distance (step S24A), the method performs step S26A to enlarge the image displayed by the screen at the first magnification; if the operation distance is less than or equal to the second preset distance but greater than the first preset distance (Step S24A and Step S24B), the method performs step S26B to enlarge the image displayed on the screen by the second magnification; if the operation distance is smaller than the first preset distance (step S24B), the method performs step S26C to reduce the display on the screen. Image.

Wherein, the first magnification is higher than the second magnification, and the ratio between the first magnification and the second magnification is related to the first preset distance and the second preset distance. That is, the ratio between the first magnification and the second magnification may be equal to a ratio between the first preset distance and the second preset distance, or a ratio between the first preset distance and the second preset distance. Multiples. In fact, the first magnification may be the maximum magnification that the image can be magnified, but is not limited thereto.

Referring to FIG. 11, in another embodiment, first, in step S30, an image is displayed on the screen. Next, the method performs step S32 to detect a corresponding operating distance between the first object and the second object that are simultaneously located above the screen. Different from the foregoing embodiment, the method next performs steps S34A, 34B and S34C to compare the operation distance with the first preset distance, the second preset distance, and the third preset distance. Then, step S36A, S36B, S36C or S36D is selectively performed in accordance with the above comparison result. Thereafter, in step S38, it is detected whether the first object and the second object are still in contact with or close to the top of the screen; if so, the process returns to step S32.

The third preset distance is greater than the second preset distance and the second preset distance is greater than the first preset distance. If the operation distance is greater than the third preset distance (step 34A), the method performs step S36A to enlarge the image displayed on the screen by the first magnification; if the operation distance is less than or equal to the third preset distance but greater than the second preset distance (Step 34A and Step 34B), the method performs Step S36B to enlarge the image displayed on the screen by the second magnification; if the operation distance is less than or equal to the second preset distance but greater than the first preset distance (Step 34B and Step 34C) The method performs step S36C to enlarge the image displayed on the screen by the third magnification; if the operation distance is less than or equal to the first preset distance (step 34C), the method performs step S36D to reduce the image displayed on the screen.

Wherein the first magnification is higher than the second magnification and the second magnification is higher than the third magnification, and the ratio between the first magnification, the second magnification and the third magnification is the first preset distance and the second preset distance Related to the third preset distance. That is, the ratio between the first magnification, the second magnification, and the third magnification may be equal to a ratio between the first preset distance, the second preset distance, and the third preset distance, or the first preset distance. a multiple of a ratio between the second preset distance and the third preset distance. In fact, the first magnification may be the maximum magnification that the image can be magnified, but is not limited thereto.

It should be noted that the image displayed on the screen may include a plurality of image areas. Therefore, in addition to being able to enlarge or reduce the entire image, the above-described enlargement and reduction steps can also zoom in or out for a specific image area. In fact, the specific image area is preset by the system, selected by the user, or the position of the specific image area displayed on the screen corresponds to the first object and the second object, but is not limited thereto.

Compared with the prior art, through the electronic device and the control method thereof, when the user wants to enlarge or reduce the screen displayed on the screen, the user only needs to touch the two fingers to any two different positions on the screen, the electronic device. That is, according to the distance between the two fingers and the preset distance, and according to the comparison result, the screen displayed on the screen can be selectively enlarged or reduced, without touching the zoom-in and zoom-out specific position on the screen, and no need to be above the screen. Pull or pull the distance between the two fingers or change the tilt angle of the screen. When the user wants to continuously enlarge or reduce the picture, it is only necessary to continuously maintain the original two-finger touch action, and the two fingers do not need any movement. For the user, the electronic device of the present invention and its control method are indeed quite simple, intuitive and user-friendly. In addition, the user can also achieve personalized operation by setting the preset distance and scaling the number of segments and zooming magnification.

The features and spirit of the present invention will be more apparent from the detailed description of the preferred embodiments. On the contrary, the intention is to cover various modifications and equivalents within the scope of the invention as claimed.

S10~S38. . . Process step

1. . . Electronic device

9. . . Portable electronic device

90, 12. . . Screen

+. . . Zoom in icon

-. . . Zoom out icon

F, F', F", F1, F2, F3, F4... objects

A, B, A', B', A", B". . . The position of the object on the screen

10. . . case

14. . . Detection module

16. . . Comparison module

18. . . Zoom in/out module

20. . . Storage module

M1. . . First object

M2‧‧‧ second object

D1, D2, D3, D4‧‧‧ operating distance

FIG. 1 is a schematic diagram showing an enlarged and reduced display on a touch screen of a portable electronic device in the prior art.

2A-2C are schematic diagrams showing correspondingly enlarged or reduced images displayed by the gesture control screen of the two fingers by zooming in or out in the prior art.

3A to 3F are schematic diagrams showing correspondingly enlarged or reduced images displayed by the angle control screen of the tilt screen in the prior art.

4A and 4B are respectively a schematic diagram and a functional block diagram of an electronic device according to an embodiment of the invention.

5A is a schematic diagram showing an operation distance between a first object and a second object on the screen; FIG. 5B is a schematic diagram showing an enlarged object displayed on the screen when the operation distance is greater than the first preset distance; A schematic diagram of reducing an object displayed on the screen when the operation distance is less than or equal to the first preset distance.

6A-6C are schematic diagrams showing the images displayed by the screen in a plurality of times in a segmented manner at different times.

7A and FIG. 7B are schematic diagrams showing the image displayed on the screen being enlarged to a first magnification when the operation distance is greater than the second predetermined distance; FIG. 7C and FIG. 7D are diagrams showing that when the operation distance is less than the second preset distance, The image displayed on the screen is enlarged to a second magnification when the distance is greater than the first preset distance; FIG. 7E and FIG. 7F are schematic diagrams showing that the image displayed by the screen is reduced when the operation distance is less than the first preset distance.

8A and FIG. 8B are schematic diagrams showing the image displayed on the screen being enlarged to a first magnification when the operation distance is greater than the third predetermined distance; and FIG. 8C and FIG. 8D are diagrams showing that when the operation distance is less than the third preset distance, The image displayed on the screen is enlarged to a second magnification when the second preset distance is greater; FIG. 8E and FIG. 8F are diagrams showing that the screen is displayed when the operation distance is less than the second preset distance but greater than the first preset distance. The image is enlarged to a schematic diagram of the third magnification; FIG. 8G and FIG. 8H are schematic diagrams showing that the image displayed by the screen is reduced when the operation distance is smaller than the first preset distance.

FIG. 9 is a flow chart showing a method of controlling an electronic device according to another embodiment of the present invention.

FIG. 10 is a flow chart showing a method of controlling an electronic device according to another embodiment of the present invention.

FIG. 11 is a flow chart showing a method of controlling an electronic device according to another embodiment of the present invention.

1. . . Electronic device

20. . . Storage module

12. . . Screen

14. . . Detection module

16. . . Comparison module

18. . . Zoom in/out module

Claims (21)

An electronic device control method for controlling an electronic device having a screen, the electronic device control method comprising the steps of: (a) displaying an image on the screen; and (b) detecting a first object located at the same time above the screen An operating distance corresponding to a second object, wherein the first object and the second object remain stationary above the screen, such that the operating distance remains fixed; (c) comparing the operating distance with a first preset distance; and (d) selectively magnifying or reducing the image displayed by the screen according to the comparison result of the step (c). The electronic device control method according to claim 1, wherein if the comparison result of the step (c) is that the operation distance is greater than the first preset distance, the step (d) is to enlarge the image displayed by the screen. The electronic device control method according to claim 2, wherein the step (d) directly enlarges the image displayed on the screen to a maximum magnification that the image can be enlarged. The electronic device control method according to claim 1, wherein if the comparison result obtained by performing steps (b) and (c) at a plurality of times is that the operation distance is greater than the first preset distance, the step (d) correspondingly, the image displayed on the screen is enlarged in a plurality of times, and after the plurality of amplifications, the step (d) is to enlarge the image to a maximum magnification that can be amplified by the image. The electronic device control method according to claim 1, wherein if the comparison result of the step (c) is that the operation distance is less than or equal to the first preset distance, the step (d) is to reduce the display of the screen. image. The electronic device control method of claim 1, wherein the step (c) further comprises the steps of: comparing the operating distance with a second predetermined distance, wherein the second preset distance is greater than the first predetermined Set the distance. The electronic device control method according to claim 6, wherein if the comparison result of the step (c) is that the operation distance is greater than the second preset distance, the step (d) is to enlarge the image displayed by the screen. To a first magnification; if the comparison result of the step (c) is that the operation distance is less than the second preset distance but greater than the first preset distance, the step (d) is to enlarge the image displayed by the screen to one a second magnification, wherein the first magnification is higher than the second magnification, and the ratio between the first magnification and the second magnification is related to the first preset distance and the second preset distance. The electronic device control method according to claim 7, wherein the first magnification is a maximum magnification that the image can be enlarged. The electronic device control method of claim 1, wherein the step (c) further comprises the steps of: comparing the operating distance with a second preset distance and a third preset distance, wherein the third preset The distance system is greater than the second predetermined distance and the second predetermined distance is greater than the first predetermined distance. The electronic device control method according to claim 9, wherein if the comparison result of the step (c) is that the operation distance is greater than the third predetermined distance, the step (d) is to enlarge the image displayed on the screen. Up to a first magnification; if the comparison result of the step (c) is that the operation distance is less than the third preset distance but greater than the second preset distance, the step (d) is to enlarge the image displayed by the screen to one a second magnification; if the comparison result of the step (c) is that the operation distance is less than the second preset distance but greater than the first preset distance, the step (d) is to enlarge the image displayed on the screen to a third The magnification, wherein the first magnification is higher than the second magnification and the second magnification is higher than the third magnification. The electronic device control method of claim 10, wherein the ratio between the first magnification, the second magnification, and the third magnification is the first preset distance and the second preset distance The third preset distance is related. The electronic device control method according to claim 1, wherein the first object and the second object system of the step (b) are respectively located above the image displayed on the screen, and the screen is diagonally opposite to the screen. One of the four above the line, above the same side of the screen, and above the different sides of the screen. The electronic device control method according to claim 1, wherein the image displayed in the screen of the step (a) includes a plurality of image regions, and the step (d) selectively enlarges or reduces the image. An image area of the plurality of image areas, the image area being a system preset, selected by a user, or the image area being displayed on the screen corresponds to the first object and the second object. An electronic device includes: a screen for displaying an image; and a detecting module for detecting an operating distance corresponding to a first object and a second object at the same time above the screen The first object and the second object are fixed at the top of the screen, so that the operation distance is maintained constant; a comparison module is coupled to the detection module and used to compare the operation And the first preset distance; and an enlargement/reduction module coupled to the comparison module and the screen, and configured to selectively enlarge or reduce the display of the screen according to the comparison result of the comparison module The image is displayed; wherein, when the comparison result of the comparison module is that the operation distance is greater than the first preset distance, the enlargement/reduction module enlarges the image displayed by the screen, when the comparison module compares As a result, when the operation distance is less than or equal to the first preset distance, the enlargement/reduction module reduces the image displayed on the screen. The electronic device of claim 14, wherein the enlargement/reduction module directly enlarges the image displayed on the screen to a maximum magnification that can be amplified by the image. The electronic device of claim 14, wherein if the comparison result of the comparison module is greater than the first preset distance at a plurality of times, the enlargement/reduction module is correspondingly The image displayed on the screen is enlarged in multiple steps. The electronic device of claim 16, wherein after the plurality of amplifications, the enlargement/reduction module enlarges the image to a position where the image can be placed The maximum magnification of the big one. The electronic device of claim 14, wherein the comparison module compares the operating distance with a second predetermined distance, wherein the second predetermined distance is greater than the first predetermined distance. The electronic device of claim 18, wherein if the comparison result of the comparison module is that the operation distance is greater than the second preset distance, the enlargement/reduction module enlarges the image displayed on the screen Up to a first magnification; if the comparison result of the comparison module is that the operation distance is less than the second preset distance but greater than the first preset distance, the enlargement/reduction module enlarges the image displayed on the screen And a second magnification, wherein the first magnification is higher than the second magnification. The electronic device of claim 19, wherein the ratio between the first magnification and the second magnification is related to the first predetermined distance and the second predetermined distance. The electronic device control method of claim 1, wherein the first preset distance is independent of the first object and the second object that are simultaneously located above the screen.