TWI467422B - Touch-controlled electronic apparatus and control method thereof - Google Patents

Description

Touch electronic device and related control method

The present invention relates to a touch-sensitive electronic device and related control method thereof, and more particularly to an apparatus and method for using a partial touch screen (for example, a touch-sensitive button) to wake up a touch-type electronic device in a sleep mode.

In today's consumer electronics market, portable electronic products such as personal digital assistants (PDAs), mobile phones and PDA phones have been widely used with touch panels as their data communication. Interface tool. Since the design of electronic products is currently in the direction of light, thin, short and small, there is not enough space on the product to accommodate traditional input devices such as keyboards and mice, especially driven by the demand for tablet PCs with humanized design. Display devices with touch panels have gradually become one of the key components of various electronic products.

In order to save costs, manufacturers have used touch pads to replace the general buttons on mobile devices. However, they have some disadvantages: when the mobile device is in sleep mode. In this case, the system cannot be woken up, even if the system can be woken up, the system must constantly monitor whether an interrupt is triggered, thus requiring more power to be consumed, requiring low power consumption. The mobile device is very unsuitable.

Therefore, one of the objects of the present invention is to provide a touch type electronic device and related control method thereof to solve the above problems.

The invention discloses a touch type electronic device, which comprises a touch screen, a An arithmetic and judgment module and a central processing unit. The touch screen includes a first area for displaying an image and a second area for generating an output signal according to a contact. The operation and determination module is coupled to the second area of the touch screen for calculating the output signal to generate a determination result, and triggering an interrupt request according to the determination result. The central processing unit includes a processing module coupled to the computing and determining module for receiving the interrupt request. Wherein, when the touch-sensitive electronic device is in a first specific mode, the first region is in a disabled state and the second region is in an enabled state. When the processing module receives the interrupt request in the first specific mode, the processing module controls the touch control electronic device to enter a second specific mode from the first specific mode. . The first specific mode is a sleep mode, and the second specific mode is a normal mode.

In one embodiment, the touch control electronic device further includes a liquid crystal display panel (LCD panel), wherein the area of the liquid crystal display panel is equal to the sum of the area of the first area and the second area of the touch screen.

In one embodiment, the touch control electronic device further includes a liquid crystal display panel, wherein the area of the liquid crystal display panel is equal to the area of the first area of the touch screen.

The present invention discloses a touch-sensitive electronic device including a touch screen and a central processing unit. The touch screen includes a first area for displaying an image and a second area for generating an output signal according to a contact. The central processing unit includes an operation and determination module And a processing module. The operation and determination module is coupled to the second area of the touch screen for calculating the output signal to generate a determination result, and triggering an interrupt request according to the determination result. The processing module is coupled to the computing and determining module for receiving the interrupt request.

The present invention discloses a method of controlling a touch electronic device. The touch control device includes a touch screen having a first area for displaying an image and a second area for generating an output signal according to a contact. The method includes: when the second area generates the output signal, calculating the output signal to generate a determination result; triggering an interrupt request according to the determination result; and receiving the interrupt request.

Please refer to FIG. 1 . FIG. 1 is a block diagram of a touch control electronic device 100 according to a first embodiment of the present invention. As shown in FIG. 1 , the touch control device 100 includes, but is not limited to, a touch screen 130 , an operation and determination module 140 , and a central processing unit 180 , wherein the touch screen 130 is The first region 110 for displaying an image and the second region 120 for generating an output signal S _OUT according to a touch TU _IN are included. The operation and determination module 140 is coupled to the second area 120 of the touch screen 130 for calculating the output signal S _OUT to generate a determination result DR1, and triggering an interrupt request according to the determination result DR1 ( Interrupt) IR1. In the embodiment, the central processing unit 180 includes a processing module 160 and an execution module 170. The processing module 160 is coupled to the operation and determination module 140 for receiving the interrupt request IR1, and the execution module 170 is coupled to the processing module 160 for receiving the processing module 160. When the interrupt request IR1, the position of the contact TU _IN is executed corresponding to one of the specific application programs AP1. It should be noted that when the touch-sensitive electronic device 100 is in a first specific mode, the first region 110 of the touch screen 130 is in a disabled state, and the second region 120 is When the processing module 160 receives the interrupt request IR1 in the first specific mode, the touch control electronic device 100 controls the touch electronic device 100 to be controlled by the touch control device 100. The first specific mode enters a second specific mode, wherein the first specific mode is a sleep mode, and the second specific mode is a normal mode.

In short, when the touch-sensitive electronic device 100 is in the sleep mode, the first area 110 (eg, image display area) of the touch screen 130 cannot function, and the second area 120 (eg, touch The control button area) can work normally. When the user touches any position of the second area 120, the second area 120 generates an output signal S _OUT to the operation and judgment module 140 according to the contact TU _IN , and then the operation is performed. The operation and determination module 140 triggers the interrupt request IR1 according to the judgment result DR1 generated after the operation. When the processing module 160 receives the interrupt request IR1, the touch control electronic device 100 is controlled to enter the sleep mode. The normal operation mode (ie, the wake-up electronic device 100 is awakened), and the specific application AP1 corresponding to the position of the contact TU _IN is executed through the execution module 170. The circuit architecture and operation mode of each component of the touch-sensitive electronic device 100 will be further described in detail in the following embodiments.

Please note that the above-mentioned touch-sensitive electronic device 100 is a handheld touch-type electronic device, such as a PDA or a mobile phone, but is not limited thereto. Other types of touch electronic devices are also available. Furthermore, the touch screen 130 can be a resistive touch panel or a capacitive touch panel, and can be implemented by a four-wire or five-wire resistive touch panel, which is well known to those skilled in the art. It should be understood that this is not a limitation of the invention. In addition, the first area 110 of the touch screen 130 can be used as an image display area, and the second area 120 can be used as a touch button area, and the second area 120 is located in the touch. The edge of the screen 130 is shown in Fig. 2, but it will be understood by those skilled in the art that this is not a limitation of the invention.

Please note that the processing module 160, the execution module 170, and the operation and determination module 140 can be implemented by software and/or hardware. In the first embodiment, the processing module 160 and the execution module 170 are software and implemented by the central processing unit 180. For example, the processing module 160 is configured by the central processing unit. The implementation code 170 is implemented by the implementation module 170, and the execution module 170 is used to execute the specific application AP1 corresponding to the location of the contact TU _IN . In addition, in the embodiment, the operation and determination module 140 is implemented by using a hardware, and is disposed outside the central processing unit 180, and the operation and determination module 140 includes a comparator 150. The comparator 150 is configured to receive the output signal S _OUT and a threshold TH1 for comparing the two, and trigger the interrupt request IR1 when the output signal S _OUT is greater than the threshold TH1.

The embodiments described above are only intended to be illustrative of the invention, and are not intended to be limiting of the invention, and those skilled in the art should understand that other embodiments or other elements are possible without departing from the spirit of the invention. The processing module 160, the execution module 170, and the operation and determination module 140 are all within the scope of the present invention.

Please refer to FIG. 2 , which is a schematic diagram of the appearance of the touch screen 130 shown in FIG. 1 . As shown in FIG. 2 , the touch screen 130 includes the first area 110 and the second area 120 , wherein the first area 110 is disposed in a middle portion of the touch screen 130 for displaying images. The second area 120 is disposed on the edge of the touch screen 130 and functions only as a touch pad. For example, the second area 120 has a plurality of button-printing patterns 210-260 for use as a touch-sensitive button, and the plurality of touch-type buttons are permeable or opaque. However, it should be understood by those skilled in the art that this is not a limitation of the invention. In addition, each button pattern can represent a different specific application. For example, when the user presses the button pattern 210, the execution module 170 can perform an action of adjusting the volume; when the user presses the button pattern 250, the execution module 170 can perform the action of playing music.

Please note that the touch-sensitive electronic device 100 further includes a liquid crystal display panel (not shown in FIG. 2 ) disposed under the touch screen 130 . In the first configuration, the area of the liquid crystal display panel is equal to the sum of the area of the first area 110 and the second area 120 of the touch screen 130, and the backlight module of the liquid crystal display panel is used to provide the The light source required for the first region 110 and the second region 120. In the second case, the area of the liquid crystal display panel is only equal to the area of the first area 110 of the touch screen 130. The backlight module of the liquid crystal display panel is only used to provide the first area 110. The light source required for the second region 120 needs to be additionally provided with a light-emitting element (such as a light-emitting diode (LED)). In other words, the area of the liquid crystal display panel may be equal to the sum of the areas of the first area 110 and the second area 120 of the touch screen 130, or may be equal to the touch type The area of the first region 110 of the curtain 130, both of which are within the scope of the present invention.

In the above embodiment, the first area 110 is disposed at an intermediate portion of the touch screen 130, and the second area 120 is disposed at an edge of the touch screen 130, but is not limited thereto. . It will be appreciated by those skilled in the art that various changes in the placement of the second region 120 are possible without departing from the spirit of the invention. For example, the second region 120 may be disposed on one of the left side of the broken line AA' shown in FIG. 2, the right side of the broken line BB', the upper side of the broken line CC', or one of the lower positions of the broken line DD'.

In an embodiment, if the touch screen 130 is implemented by using a four-wire or five-wire resistive touch panel, and the comparator 150 is used to implement the operation and judgment module 140, one ( Or a plurality of comparators 150 compare the output signal S _OUT with one or a plurality of threshold values TH1, the output signal S _OUT representing the coordinate voltage of the contact TU _IN , such that when the output signal S _OUT is greater than the critical value When the value TH1 is determined, it is determined that the contact TU _IN is located in the second region 120 and the interrupt request IR1 is sent; when the output signal S _OUT is less than the threshold TH1, it is determined that the contact TU _IN is not located in the second region 120. Of course, the value and number of the threshold TH1 are not fixed, and they can be adjusted according to actual needs.

Please refer to FIG. 3 , which is a block diagram of a second embodiment of a touch control electronic device 300 according to the present invention. The elements described in the second embodiment are the same as those described in the first embodiment, indicating that they have the same function or relative position. The structure of the touch-sensitive electronic device 300 of FIG. 3 is similar to that of the touch-type electronic device 100 of FIG. 1 . The difference between the two is that the computing and determining module 340 in the second embodiment uses software. The operation module 160, the execution module 170, and the operation and determination module 340 are all implemented by the same central processing unit 380. For example, the operation and determination module 340 is implemented by The central processing unit 380 executes the code PC2, and so on. In this embodiment, the operation and determination module 340 must first wake up the central processing unit 380 to execute the program code PC2 through the central processing unit 380 to calculate the output signal S _OUT to calculate the position of the contact TU _IN , and When the operation and determination module 340 calculates that the position of the contact TU _IN is in the second area 120, the interrupt request IR1 is sent to the processing module 160 of the central processing unit 380. Compared with the touch-type electronic device 100 in the first embodiment, since the touch-type electronic device 300 does not need to use an actual hardware (the comparator 150) to practice the operation and judgment module, the cost can be further reduced. However, the central processing unit 380 is slower and more power hungry.

Please refer to FIG. 4 , which is a block diagram of a third embodiment of a touch control electronic device 400 according to the present invention. The elements described in the third embodiment are the same as those described in the first embodiment, indicating that they have the same function or relative position. The structure of the touch-sensitive electronic device 400 of FIG. 4 is similar to that of the touch-sensitive electronic device 100 of FIG. 1 . The difference between the two is that the computing and determining module 440 in the third embodiment adopts a micro processing. The unit 442 is implemented instead of the comparator 150 shown in FIG. 1, and the operation and determination module 440 is implemented by the micro processing unit 442 executing the code PC3. Compared with the touch control electronic device 300 in the second embodiment, since the touch control electronic device 400 processes the operation of the operation and determination module 440 through the additional micro processing unit 442, it is not necessary to wake up the central unit. The processing unit 180 can process it by itself, so as to avoid the speed of the central processing unit 180 being dragged down. And reduce power consumption. In addition, if the comparator is used in many locations, the touch-type electronic device 100 in the first embodiment is bound to have a plurality of comparators, which is not economical in terms of cost, if a micro-processing can be used. Instead of a plurality of comparators, the unit can also effectively control costs.

Please refer to FIG. 5. FIG. 5 is a flow chart showing a first operation example of the method for controlling a touch electronic device according to the present invention, which includes the following steps (note that if substantially the same result is obtained, the following steps are performed. It is not limited to be performed in the order shown in FIG. 5): Step 502: The process starts.

Step 504: Providing a touch-sensitive electronic device, comprising a touch screen, the touch control screen having a first area for displaying an image and a second area for generating an output signal according to a contact.

Step 506: The touch-sensitive electronic device is in a first specific mode, wherein the first region is in a disabled state and the second region is in an enabled state.

Step 508: When the second area generates the output signal, compare the output signal with a threshold to generate a determination result. When the output signal is greater than the threshold, step 510 is performed; otherwise, step 506 is returned.

Step 510: Trigger an interrupt request.

Step 512: Determine whether the contact is a false touch. If the contact is not a false touch, step 514 is performed; otherwise, return to step 506.

Step 514: Receive the interrupt request.

Step 516: Control the touch electronic device to enter a second specific mode by the first specific mode.

Step 518: Performing the location of the contact corresponds to one of the specific applications.

For each step shown in Figure 5, please use the components shown in Figure 1 (or Figure 4) and Figure 2 to understand how each component works. For the sake of brevity of the description, The operation of each step in the figure will not be described again. It should be noted that the above steps of the present invention are only the embodiments of the present invention, and are not intended to limit the present invention, and the method may further include other intermediate steps or may be included without departing from the spirit of the present invention. Several steps are combined into a single step to make the appropriate changes. For example, step 512 can be omitted. It should be noted that, in the first embodiment, the touch control electronic device 100 uses the comparator 150 in the operation and determination module 140 to perform the comparison function of step 508; and in the third embodiment The touch-type electronic device 400 uses the micro-processing unit 442 in the operation and determination module 440 to execute the program code PC3 to implement the comparison function of step 508.

Please refer to FIG. 6. FIG. 6 is a flow chart showing a second operation example of the method for controlling a touch electronic device according to the present invention, which includes the following steps: Step 502: The process starts.

Step 504: Providing a touch-sensitive electronic device, comprising a touch screen, the touch control screen having a first area for displaying an image and a second area for generating an output signal according to a contact.

Step 506: The touch-sensitive electronic device is in a first specific mode, wherein the first region is in a disabled state and the second region is in an enabled state.

Step 610: When the second area generates the output signal, calculate the output signal to calculate the position of the contact.

Step 620: Determine whether the location of the contact is located in the second area. When the contact When the location is in the second region, step 510 is performed; otherwise, step 506 is returned.

Step 510: Trigger an interrupt request.

Step 512: Determine whether the contact is a false touch. If the contact is not a false touch, step 514 is performed; otherwise, return to step 506.

Step 514: Receive the interrupt request.

Step 516: Control the touch electronic device to enter a second specific mode by the first specific mode.

Step 518: Performing the location of the contact corresponds to one of the specific applications.

For each step shown in Figure 6, please match the components shown in Figures 3 and 2 to understand how each component works. For the sake of brevity of the description, the steps in Figure 6 are The operation will not be described again. It should be noted that the steps of FIG. 6 are similar to the steps of FIG. 5, which is a modified embodiment of FIG. 5, and the difference is that the fifth figure is replaced by steps 610 and 620 in FIG. Step 508 in . Steps 610 and 620 in FIG. 6 are implemented by the operation and determination module 340 in FIG. 3, which is implemented by the central processing unit 380 executing the code PC2; and the step 508 of FIG. 5 is performed. This is implemented by the comparator 150 of the operation and determination module 140 in FIG. 1 or the micro-processing unit 442 of the operation and determination module 440 in FIG. 4, which is different.

The embodiments described above are only intended to illustrate the technical features of the present invention and are not intended to limit the scope of the present invention. As can be seen from the above, the present invention provides a touch electronic device and related control method. By using a touch screen that defines a part of the area as a touch button, the user can still touch the touch area in the sleep mode. Press the button to wake up the touch electronic device. In this way, not only can the button be reduced, but also the cost can be saved. Furthermore, since the touch-sensitive electronic device disclosed in the present invention can be automatically woken up in the sleep mode, power consumption can be further saved to achieve power saving. In addition, the trigger interrupt requirement (that is, the processing module 160 and the operation and determination module 140) can be implemented through software and/or hardware, both of which have the advantages of simple fabrication and convenient use, and are very suitable for application in the image. It is a handheld touch-sensitive electronic device such as a mobile phone or a personal digital assistant.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

100, 300, 400‧‧‧ touch electronic devices

130‧‧‧Touch screen

110‧‧‧First area

120‧‧‧Second area

140, 340, 440‧‧‧ Calculation and Judgment Module

150‧‧‧ comparator

160‧‧‧Processing module

170‧‧‧Execution module

180, 380‧‧‧ central processing unit

TU _IN ‧‧‧Contact

S _OUT ‧‧‧ output signal

TH1‧‧‧ threshold

DR1‧‧‧ judgment result

IR1‧‧‧ interrupt request

PC1, PC2, PC3‧‧‧ code

AP1‧‧‧ specific application

210~260‧‧‧ button pattern

AA’, BB’, CC’, DD’‧‧‧ dotted lines

442‧‧‧Microprocessing unit

502~518, 610, 620‧ ‧ steps

1 is a block diagram of a first embodiment of a touch electronic device of the present invention.

Fig. 2 is a schematic view showing the appearance of the touch screen shown in Fig. 1.

3 is a block diagram of a second embodiment of a touch electronic device of the present invention.

4 is a block diagram of a third embodiment of a touch electronic device of the present invention.

FIG. 5 is a flow chart showing a first operation example of a method for controlling a touch electronic device according to the present invention.

FIG. 6 is a flow chart showing a second operation example of the method for controlling a touch electronic device according to the present invention.

100‧‧‧Touch electronic device

130‧‧‧Touch screen

110‧‧‧First area

120‧‧‧Second area

140‧‧‧Operation and judgment module

150‧‧‧ comparator

160‧‧‧Processing module

170‧‧‧Execution module

180‧‧‧Central Processing Unit

TU _IN ‧‧‧Contact

S _OUT ‧‧‧ output signal

TH1‧‧‧ threshold

DR1‧‧‧ judgment result

IR1‧‧‧ interrupt request

PC1‧‧‧ code

AP1‧‧‧ specific application

Claims (27)

A touch-sensitive electronic device includes: a touch screen, comprising: a first area for displaying an image; and a second area for generating an output signal according to a contact; an operation and a judgment The module is coupled to the second area of the touch screen for calculating the output signal to generate a determination result, and triggering an interrupt request according to the determination result; and a central processing unit, including: a processing module coupled to the computing and determining module for receiving the interrupt request; wherein when the touch electronic device is in a first specific mode, the first region and the second region are Different operating states. The touch-sensitive electronic device of claim 1, wherein when the touch-sensitive electronic device is in the first specific mode, the first region is in a disabled state and the second region is in a state The processing module controls the touch electronic device to be controlled by the processing module when the processing module of the central processing unit receives the interrupt request in the first specific mode. A particular mode enters a second particular mode. The touch-sensitive electronic device of claim 2, wherein the first specific mode is a sleep mode, and the second specific mode is a normal operation mode. The touch-sensitive electronic device of claim 1, wherein the second area of the touch screen is used as a touch button, and the second area is located The edge of the touch screen. The touch-sensitive electronic device of claim 4, wherein the second area has a button pattern printed on the web. The touch-sensitive electronic device of claim 4, wherein the touch-sensitive button is permeable or opaque. The touch-sensitive electronic device of claim 1, wherein the central processing unit further comprises: an execution module coupled to the processing module, configured to receive the interrupt request when the processing module receives the interrupt request The location where the contact is performed corresponds to one of the specific applications. The touch-sensitive electronic device of claim 1, further comprising a liquid crystal display panel, wherein the area of the liquid crystal display panel is equal to the sum of the area of the first area and the second area of the touch screen . The touch-sensitive electronic device of claim 8, wherein the liquid crystal display panel further comprises a backlight module for providing a light source required for the first region and the second region. The touch-sensitive electronic device of claim 1, further comprising a liquid crystal display panel, wherein the area of the liquid crystal display panel is equal to the area of the first region of the touch screen. The touch-sensitive electronic device of claim 10, further comprising a light-emitting element for providing a light source required for the second region. The touch-sensitive electronic device of claim 11, wherein the light-emitting element comprises at least one light-emitting diode. The touch control electronic device of claim 1, wherein the processing module The group and the operation and judgment module are implemented by software and/or hardware. The touch-sensitive electronic device of claim 1, wherein the processing module is implemented by the central processing unit executing the code, and the computing and determining module is disposed outside the central processing unit, and The operation and judgment module includes a comparator. The touch-sensitive electronic device of claim 1, wherein the processing module is implemented by the central processing unit executing a code, the computing and determining module is located outside the central processing unit, and the The operation and judgment module is implemented by a micro processing unit executing the code. The touch-sensitive electronic device of claim 1 is a handheld touch-type electronic device. A touch-sensitive electronic device includes: a touch screen, comprising: a first area for displaying an image; and a second area for generating an output signal according to a contact; a central processing unit The method includes: an operation and determination module coupled to the second area of the touch screen for calculating the output signal to generate a determination result, and triggering an interrupt request according to the determination result; a processing module coupled to the computing and determining module for receiving the interrupt request; wherein when the touch electronic device is in a first specific mode, the first region and the second region are Different operating states. The touch-sensitive electronic device of claim 17, wherein when the touch-sensitive electronic device is in the first specific mode, the first region is in a disabled state and the second region is in a state The processing module controls the touch electronic device to be controlled by the processing module when the processing module of the central processing unit receives the interrupt request in the first specific mode. A particular mode enters a second particular mode. The touch-sensitive electronic device of claim 18, wherein the first specific mode is a sleep mode, and the second specific mode is a normal operation mode. The touch-sensitive electronic device of claim 17, wherein the central processing unit further comprises: an execution module coupled to the processing module, when the processing module receives the interrupt request The location where the contact is performed corresponds to one of the specific applications. The touch-sensitive electronic device of claim 17, wherein the processing module and the computing and determining module are implemented by the central processing unit executing the code. A touch control electronic device includes a touch screen having a first area for displaying an image and an output for generating a contact according to a contact a second region of the signal, and the method includes: when the second region generates the output signal, calculating the output signal to generate a determination result; triggering an interrupt request according to the determination result; and receiving The interruption request; When the touch electronic device is in a first specific mode, the first region and the second region are in different operating states. The method of claim 22, wherein when the touch-sensitive electronic device is in the first specific mode, the first region is in a disabled state and the second region is in an enabled state; The method further includes: controlling the touch electronic device to enter a second specific mode by the first specific mode when the interrupt request is received under the first specific mode. The method of claim 23, wherein the first specific mode is a sleep mode, and the second specific mode is a normal operation mode. The method of claim 22, further comprising: when receiving the interrupt request, performing a location of the contact corresponding to a specific application. The method of claim 22, wherein the step of calculating the output signal to generate the determination result comprises: comparing the output signal with a threshold to generate the determination result; and according to the determination result The step of triggering the interrupt request includes: triggering the interrupt request when the result of the determination indicates that the output signal is greater than the threshold. The method of claim 22, wherein the step of calculating the output signal to generate the determination result further comprises: calculating the output signal to calculate a position of the contact to generate the determination result; and according to the determination result The steps to trigger the interrupt request are: The interrupt request is triggered when the result of the determination indicates that the location of the contact is in the second region.