TWI581139B - Touch display device and control system thereof - Google Patents

Description

Touch display device and touch display device control system

The present invention relates to a touch display device and a control system for the touch display device.

With the continuous development of electronic technology, most consumer electronic products such as mobile phones, portable computers, personal digital assistants (PDAs), tablet computers, and media players use touch panels (TP) as input devices. Make the product a more friendly human-machine dialogue mode. According to different touch principles, the touch panel includes a resistive touch panel, a capacitive touch panel, an infrared touch panel, and an acoustic wave touch panel. At present, touch panels that are widely used include resistive, capacitive, optical, and acoustic touch panels. Among them, the capacitive touch panel is more widely used. Capacitive touch panels are widely used in various consumer electronic products due to their advantages of good touch sensitivity, long service life, and difficulty in interference from external signals.

Products using TP may cause TP damage due to external forces, which may cause the entire TP function to be unusable, resulting in maintenance difficulties and challenges. For example, an OGS type (one glass solution) or a TOL (touch on lens) type touch display device, since the touch electrode of the TP is directly formed on a cover glass (CG), it cannot be separately used for maintenance. Replacing the glass cover requires replacing the entire touch module, resulting in increased maintenance difficulty and increased maintenance costs. In addition, local damage of the TP usually causes the entire touch display device to malfunction. Touch hand For example, in the case of local damage to the TP, the most basic emergency communication function of the touch phone will be affected.

In order to solve the above problems, it is necessary to provide a touch display device and a control system thereof that can solve the above problems.

The touch display device provided by the invention comprises a display module, a touch panel and a control system. The control system includes: a detection module for detecting a damaged portion of the touch panel; and a display control module configured to calculate the touch panel when the damaged portion of the touch panel is detected The maximum rectangular area included in the non-damaged portion is then displayed on the display area corresponding to the maximum rectangular area after the display screen of the touch display device is reduced according to the length and width of the maximum rectangular area.

The control system of the touch display device includes: a detection module for detecting a damaged portion of the touch panel of the touch display device; and a display control module for detecting the touch When the damaged portion of the control panel is controlled, the maximum rectangular area included in the non-damaged portion of the touch panel is calculated, and then the display screen of the touch display device is reduced according to the length and width of the maximum rectangular area, and then displayed in the maximum rectangular area. Display area.

Another touch display device provided by the present invention includes a display module, a touch panel, and a control system. The control system includes: a detection module for detecting a damaged portion of the touch panel; and a display control module for determining damage of the touch panel when detecting a damaged portion of the touch panel Whether the proportion of the portion exceeds a first predetermined value, and if the proportion of the damaged portion does not exceed the first predetermined value, the display control module controls the touch display device to enter the first mode, and the touch display device is The display screen is adjusted to a maximum rectangular area included in the non-damaged portion of the touch panel The corresponding display area is displayed.

Compared with the prior art, the touch display device and the control system thereof of the present invention can make the important functions of the touch display device (such as emergency communication function) or corresponding operation icons still be used when the touch panel is damaged. , to a large extent convenient for the user's use.

100‧‧‧Touch display device

10‧‧‧Control system

20‧‧‧Touch panel

30‧‧‧Display module

40‧‧‧ memory

50‧‧‧ processor

101‧‧‧Detection module

102‧‧‧Display Control Module

103‧‧‧Personalization module

60‧‧‧ touch chip

21‧‧‧ Cover glass

22‧‧‧Touch Module

R, R1, R2‧‧‧ largest rectangular area

M1, M2‧‧‧ blank area

G‧‧‧ operation buttons

111‧‧‧Voice input device

112‧‧‧Mechanical buttons

1 is a block schematic diagram of a touch display device provided by the present invention.

2 is a perspective view of the touch display device.

FIG. 3 is a schematic diagram of a display screen of the touch display device before and after the touch panel is damaged according to an embodiment.

FIG. 4 is a schematic diagram of the display screen of the touch display device before and after the touch panel is damaged in another embodiment.

FIG. 5 is a schematic diagram of the display screen of the touch display device before and after the touch panel is damaged in another embodiment.

FIG. 6 is a schematic diagram of the ratio of the touch panel in the damaged portion exceeding a first predetermined value.

FIG. 7 is a schematic view of the touch panel being completely damaged.

Please refer to FIG. 1 and FIG. 2 . FIG. 1 is a schematic block diagram of a touch display device 100 according to the present invention. FIG. 2 is a schematic perspective view of the touch display device 100 . The touch display device 100 includes a control system 10 , a touch panel 20 , a display module 30 , a memory 40 , a processor 50 , and a touch wafer 60 . The control system 10, the touch panel 20, and the display module 30. The components of the memory 40, the processor 50, and the touch wafer 60 can be directly or indirectly electrically connected to each other for data exchange and processing. It should be noted that, in order to facilitate the description of the present invention, FIG. 1 only lists some components of the touch display device 100 related to the present invention. Therefore, the specific configuration or structure of the touch display device 100 is not limited thereto. Preferably, in the embodiment, the touch display device 100 can be, but not limited to, a smart phone, a portable computer, a personal digital assistant (PDA), a tablet computer, a media player, and a mobile internet device (mobile Internet device). , MID), wearable devices, and the like that use a touch panel as an input/output device.

As shown in FIG. 2 , the touch panel 20 can be composed of a cover lens/cover glass and a touch module 22 . The display module 30 is configured to implement a display function of the touch display device 100. The touch module 22 is sandwiched between the cover glass 21 and the display module 30. In one embodiment, the cover glass 21 and the touch module 22 can be an integrated structure, and the cover glass 21 can be used as a substrate of the touch module, and the touch of the touch module 22 is used. The sensing electrode is formed on the cover glass 21 to form an OGS type (one glass solution) or a TOL (touch on lens) type touch panel. In other embodiments, the touch module 22 can also be bonded to the cover glass 21 and the display module 30 by optical glue. For example, the touch module 22 is bonded to the cover glass 21 and the display module by an optical adhesive having high transmittance such as Optical Clear Adhesive (OCA) or Optical Clear Resin (OCR). Between 30.

The control system 10 is configured to detect whether the touch panel 20 is partially damaged, and display the operation screen of the touch display device 100 on the touch panel 20 when the touch panel 20 is partially damaged. The corresponding display of the area (ie, the non-damaged part) The area, thereby preventing the touch display device 100 from being partially damaged in the touch panel 20, causes the overall function of the touch display device 100 to fail, thereby affecting the user's use. In particular, the above described functions of the control system 10 can be implemented by a number of functional modules. For example, as shown in FIG. 1 , the control system 10 can include multiple function modules, such as a detection module 101 , a display control module 102 , and a personalized setting module 103 . It should be noted that the components of the control system 10 are not limited thereto. For example, the control system 10 may further include other function modules than the detection module 101, the display control module 102, and the personalization module 103, or one or more of the function modules may be omitted.

In addition, each function module included in the control system 10 may be a software function module or a hardware function module. The software function module may refer to a software program segment that is provided to implement a specific function of the control system 10. If it is a software function module, the control system 10 may be a software control system integrated with the above software function modules. The software control system can be mounted to the memory 40 and controlled by the processor 50 for execution. In other embodiments, the software control system may also form part of the touch display device 100 operating system (OS).

The so-called hardware function module may be an integrated module composed of different hardware (such as circuit components) provided to realize a specific function of the control system 10. For example, a hardware function module may be an integrated wafer module composed of a control chip mounted with a firmware and necessary circuit components for data transmission and processing. Therefore, the control system 10 can also be an integrated circuit system integrated with the above hardware function modules, such as a single chip microcomputer system, a central processing unit (CPU) system, a microcontroller system, and an embedded control system.

The detecting module 101 is configured to detect whether the touch panel 20 has a damaged portion. In this embodiment, the damaged portion refers to a portion of the touch panel 20 that cannot detect the touch operation, that is, a portion where the touch detection function of the touch electrode of the touch panel 20 fails.

In one embodiment, the detection module 101 can send a detection command to the touch wafer 60 to control the touch wafer 60 to activate its built-in self-test function (BIST). To detect whether the function of the touch panel 20 is normal. When the function of the touch panel 20 is abnormal, the self-checking function of the touch panel 60 can report the electrode channel of the touch panel 20 with abnormal touch function or disconnection. Therefore, the self-checking function of the touch wafer 60 can effectively detect the damaged position of the touch panel 20, and then further determine the damaged portion. The self-checking function of the touch wafer 60 is integrated into the touch wafer 60, and is generally initiated by an instruction of the operating system end of the touch display device 100. Preferably, in the embodiment, the detecting module 101 can send the detecting command to the touch wafer 60 for self-checking of the touch panel 20 at a certain time (for example, 5-10 minutes), or When the touch display device 100 is powered on, the detection command is sent to the touch wafer 60 to perform a self-test on the touch panel 20 .

In another implementation, the detection module 101 can control the touch sensor 60 to send a scan signal to the touch electrode of the touch panel 20, and then detect the touch panel 20 according to whether the touch electrode returns a scan signal. Is there a damaged part? Generally, when the touch electrode receives the scan signal, it will return the sensing signal to the touch wafer 60. Therefore, if the touch sensor 60 does not receive the sensing signal returned by a touch electrode, it indicates that the position of the touch electrode may be damaged. The sensing signals returned by the touch electrodes vary depending on the type of the touch panel 20. For example, the mutual-capacitive touch panel generally includes a driving electrode and a sensing electrode. After the driving electrode receives the scanning signal, the sensing electrode returns to the sensing even if no touch action is generated. Signal package The capacitance value signal between the driving electrode and the sensing electrode is included.

The above embodiment is only used to illustrate the preferred embodiment of the present invention for detecting the damaged portion of the touch panel 20. However, in practical applications, the method for detecting the damaged portion of the touch panel 20 may be any other suitable method. And not limited to the above two ways.

The display control module 102 is configured to adjust the display screen of the touch display device 100 to display a display area corresponding to the non-damaged portion of the touch panel 20 when the damaged portion of the touch panel 20 is detected.

In another embodiment, the display control module 102 may first determine whether the proportion of the damaged portion of the touch panel 20 exceeds a first predetermined value (for example, 50%). If the proportion of the damaged portion does not exceed the first predetermined value, the display control module 102 controls the touch display device 100 to enter the first mode (eg, the first survival mode, Survivor Mode I), and then in the first mode. The display screen of the touch display device 100 is adjusted to a display area corresponding to the non-damaged portion of the touch panel 20 for display. The proportion of the damaged portion refers to the ratio of the damaged portion to the entire touch area of the touch panel 20.

Specifically, the display control module 102 may first calculate a maximum rectangular area included in the non-damaged portion of the touch panel 20, and then reduce the display screen of the touch display device 100 according to the length and width of the maximum rectangular area. Then displayed in the display area corresponding to the maximum rectangular area (corresponding to the display mode of the first mode).

As shown in FIG. 3 , it is a schematic diagram of the display screen of the touch display device 100 before and after the touch panel 20 is damaged in an embodiment. In this embodiment, the display screen is a call dialing screen. Before the touch panel is not damaged, the call dialing screen is displayed in full screen on the corresponding area of the touch panel 20. After the touch panel 20 is damaged (example) The display control module 102 reduces the call dialing screen of the touch panel 20 according to the length and width of the largest rectangular area R included in the non-damaged portion, and displays the display area corresponding to the maximum rectangular area R. The length and width of the reduced call dialing screen are respectively equal to the length and width of the maximum rectangular area R. For example, if the length and width dimensions of the maximum rectangular area R are a and b, respectively, the display control module 102 can reduce the call dialing screen to a rectangular range of a×b, and then display the corresponding rectangular area R correspondingly. Display area. That is to say, the reduced display screen is covered with the display area corresponding to the maximum rectangular area R.

As shown in FIG. 4 , it is a schematic diagram of the display screen of the touch display device 100 before and after the touch panel 20 is damaged in another embodiment. In this embodiment, the display screen is a call dialing screen. Before the touch panel is not damaged, the call dialing screen is displayed in full screen on the corresponding area of the touch panel 20. After the touch panel 20 is damaged (for example, edge cracking occurs), the display control module 102 scales the length and width of the call dialing screen according to the length of the largest rectangular region R included in the non-damaged portion, and then displays In the display area corresponding to the maximum rectangular area R1, the length of the reduced call dialing screen is equal to the length of the maximum rectangular area R1, and the ratio of the width of the reduced call dialing screen to the original width of the call dialing screen is equal to the The ratio of the length of the largest rectangular area R1 to the original length of the call dialing picture. For example, if the length and width dimensions of the largest rectangular area R1 are a and b, respectively, the original length and width dimensions of the call dial picture are a1 and b1, respectively. Then, the length and width dimensions of the call dialing screen after reduction are respectively a and b1 × a / a1. Thus, the reduced display screen may not cover the display area corresponding to the maximum rectangular area R1, and a blank area M1 exists on the right side of the maximum rectangular area R1 in the width direction.

As shown in FIG. 5, it shows a display of the touch display device 100 in another embodiment. A schematic view of the front and back of the touch panel 20 before and after damage. In this embodiment, the display screen is a call dialing screen. Before the touch panel is not damaged, the call dialing screen is displayed in full screen on the corresponding area of the touch panel 20. After the touch panel 20 is damaged (for example, edge cracking occurs), the display control module 102 scales the length and width of the call dialing screen in accordance with the width of the largest rectangular region R2 included in the non-damaged portion, and then displays In the display area corresponding to the maximum rectangular area R2, the width of the reduced call dialing screen is equal to the width of the maximum rectangular area R2, and the ratio of the length of the reduced call dialing screen to the original length of the call dialing screen is equal to the The ratio of the width of the largest rectangular area R2 to the original width of the call dialing picture. For example, if the length and width dimensions of the maximum rectangular area R2 are a and b, respectively, the original length and width dimensions of the call dial picture are a1 and b1, respectively. Then, the length and width dimensions of the call dialing screen after reduction are respectively a1×b/b1 and b. Thus, the reduced display screen may not cover the display area corresponding to the maximum rectangular area R2, and a blank area M2 exists below the longitudinal direction of the maximum rectangular area R2.

In addition, the display screen of the touch display device 100 generally includes a plurality of operation icons. When the damaged portion of the touch panel 20 is too large, the icon displayed in the non-damaged portion may be overcrowded. In order to solve this problem, the personalization module 103 is configured to preset at least one display content. The display control module 102 displays only the at least one display content set in advance in the display area corresponding to the non-damaged part according to the setting of the personalized setting module 103. The preset at least one display content may include an operation diagram corresponding to at least one function of the touch display device 100. After the operation icon is selected, the display control module 102 may scale down the display interface corresponding to the selected operation icon and display the display interface corresponding to the non-damaged portion. In this way, the user can selectively set the operation icon corresponding to one or more important functions according to actual needs, and the touch panel 20 can still be used after being damaged. To a greater extent, the user's use.

If the proportion of the damaged portion exceeds the first predetermined value, the display control module 102 controls the touch display device 100 to enter a second mode (eg, a second survival mode, Survivor Mode II), in the second mode. The display area corresponding to the non-damaged portion of the touch display device 100 displays a predetermined operation interface. The preset operation interface can be preset by the personalization module 103. In this manner, when the damaged portion of the touch panel 20 is too large to display all the display screens of the touch display device 100 normally, only the preset operation interface can be displayed on the display area corresponding to the non-damaged portion to ensure the touch display device 100. Some of the important features are still available.

For example, as shown in FIG. 6, when the proportion of the damaged portion exceeds the first predetermined value, the touch display device 100 can display an operation button G for calling an emergency contact (for example, "call emergency contact 1" and "call emergency contact". 2") in the display area corresponding to the non-damaged part. The communication information (for example, a phone number) of the emergency contact person may be preset and stored in the memory 40 of the touch display device 100 by the personalization module 103. That is to say, the preset operation interface includes at least one operation button for calling a preset contact.

In addition, when the detecting module 101 detects that the touch panel 20 is completely damaged (the touch operation cannot be detected) or the proportion of the damaged portion is greater than a second predetermined value (for example, 80%), the detecting module 101 The touch display device 100 is controlled to enter a third mode (eg, the third survival mode, Survivor Mode III). In the third mode, the touch display device 100 activates a preset control function, such as a voice control function. For example, as shown in FIG. 7, the touch display device 100 further includes a voice input device 111 (for example, a microphone). In the third mode, the touch display device 100 performs a predetermined function, such as an emergency call function, according to the voice command received by the voice input device 111. In addition, the touch display device 100 further includes at least one mechanical button 112. The preset control function can be a button control function. The button control function specifically means that in the third mode, when the mechanical button 112 is operated, the touch display device 100 performs a preset function corresponding to the mechanical button 112. For example, as shown in FIG. 7, the preset function may include a call preset caller. The touch display device 100 can include a plurality of mechanical buttons 112, each of which can correspond to a preset function.

In summary, when the touch panel 20 of the present invention is damaged, the important functions of the touch display device (such as an emergency communication function) or corresponding operation icons can still be used, to a large extent. Convenient for the user's use.

In summary, the creation meets the requirements of the invention patent, and the patent application is filed according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and those skilled in the art will be equivalently modified or changed according to the spirit of the present invention. It should be covered by the following patent application.

100‧‧‧Touch display device

10‧‧‧Control system

20‧‧‧Touch panel

30‧‧‧Display module

40‧‧‧ memory

50‧‧‧ processor

101‧‧‧Detection module

102‧‧‧Display Control Module

103‧‧‧Personalization module

60‧‧‧ touch chip

Claims (39)

A touch display device includes a display module, a touch panel, and a control system, wherein the control system includes: a detection module for detecting a damaged portion of the touch panel; and a display control module for When detecting the damaged portion of the touch panel, calculating a maximum rectangular area included in the non-damaged portion of the touch panel, and then displaying the display screen of the touch display device according to the length and width of the maximum rectangular area is displayed on the The display area corresponding to the largest rectangular area. The touch display device of claim 1, wherein the control system further includes a performance setting module, configured to preset at least one display content; wherein the display screen of the touch display device is the advance Setting at least one display content; the display control module displays the preset at least one display content in a display area corresponding to the non-damaged portion according to the setting of the personalized setting module. The touch display device of claim 1 or 2, wherein the touch display device further includes a touch chip, the detection module sends a detection command to the touch wafer to activate the touch The self-test function of the chip to detect the damaged portion of the touch panel. The touch display device of claim 3, wherein the detecting module sends the detecting command to the touch wafer at a fixed time to perform a self-test on the touch panel. The touch display device of claim 3, wherein the detection module sends the detection command to the touch wafer to perform self-test on the touch panel when the touch display device is powered on. . The touch display device of claim 1 or 2, wherein the touch display device further includes a touch chip, the detection module controlling the touch chip to send a scan signal to the touch panel Control the electrode, and then detect the touch panel according to whether the touch electrode returns a scan signal Damaged part. The touch display device of claim 6, wherein the touch electrode of the touch panel comprises a driving electrode and a sensing electrode, wherein the driving electrode is configured to receive a scanning signal, and the sensing electrode is configured to receive at the driving electrode After the scan signal is sent back to the touch sensor chip, the sensing signal includes a capacitance value signal between the driving electrode and the sensing electrode. The touch display device according to claim 1, wherein the display control module reduces the display screen according to the length and width of the maximum rectangular area, and displays the reduced display screen in the maximum rectangular area. In the display area, the length and width of the reduced display screen are respectively the same as the length and width of the maximum rectangular area. The touch display device according to claim 1, wherein the display control module displays the length and width dimensions of the display screen in a scaled manner according to the length of the maximum rectangular area, and displays the corresponding size in the maximum rectangular area. a display area, wherein a length of the reduced display screen is equal to a length of the maximum rectangular area, and a ratio of a width of the reduced display screen to an original width of the display screen is equal to a length of the maximum rectangular area and the display The ratio of the original length of the picture. The touch display device according to claim 1, wherein the display control module displays the length and width dimensions of the display screen in a scaled manner according to the width of the maximum rectangular area, and displays the corresponding size in the maximum rectangular area. a display area, wherein a width of the reduced display screen is equal to a width of the maximum rectangular area, and a ratio of a length of the reduced display screen to an original length of the display screen is equal to a width of the maximum rectangular area and the display The ratio of the original width of the picture. The touch display device of claim 1 , wherein the touch panel of the touch display device is an OGS type or a TOL type touch panel. A control system for a touch display device, wherein the control system includes: a detection module for detecting a damaged portion of the touch panel of the touch display device; The display control module is configured to calculate a maximum rectangular area included in the non-damaged portion of the touch panel when the damaged portion of the touch panel is detected, and then display the display screen of the touch display device according to the maximum rectangular area The length and width dimensions are reduced and displayed in the display area corresponding to the largest rectangular area. The control system of claim 12, wherein the control system further comprises a setting module for presetting at least one display content; wherein the display screen of the touch display device is at least the preset Displaying the content; the display control module displays the preset at least one display content in a display area corresponding to the non-damaged portion according to the setting of the personalized setting module. The control system of claim 12 or 13, wherein the detecting module activates the self-checking function of the touch wafer by transmitting a detecting command to the touch wafer of the touch display device to detect Measure the damaged part of the touch panel. The control system of claim 14, wherein the detecting module sends the detecting command to the touch wafer at a fixed time to perform a self-test on the touch panel. The control system of claim 14, wherein the detecting module sends the detecting command to the touch wafer to perform a self-test on the touch panel when the touch display device is powered on. The control system of claim 12 or 13, wherein the detection module controls the touch chip of the touch display device to send a scan signal to the touch electrode of the touch panel, and then according to the touch Whether the electrode should scan the signal to detect the damaged part of the touch panel. The control system of claim 17, wherein the touch electrode of the touch panel comprises a driving electrode and a sensing electrode, the driving electrode is configured to receive a scanning signal, and the sensing electrode is configured to receive a scan at the driving electrode The signal is sent back to the touch sensor chip, and the sensing signal includes a capacitance value signal between the driving electrode and the sensing electrode. The control system of claim 12, wherein the display control module reduces the display screen according to the length and width of the maximum rectangular area, and displays the reduced display screen on the display screen. The display area corresponding to the largest rectangular area, wherein the length and width of the reduced display picture are respectively the same as the length and width of the maximum rectangular area. The control system of claim 12, wherein the display control module displays the length and width dimensions of the display screen in a scaled manner according to the length of the maximum rectangular area, and displays the display area corresponding to the maximum rectangular area. The length of the reduced display screen is equal to the length of the maximum rectangular area, and the ratio of the width of the reduced display screen to the original width of the display screen is equal to the length of the maximum rectangular area and the original of the display screen. The ratio of the length. The control system according to claim 12, wherein the display control module displays the length and width dimensions of the display screen in a scaled manner according to the width of the maximum rectangular area, and displays the display area corresponding to the maximum rectangular area. The width of the reduced display screen is equal to the width of the maximum rectangular area, and the ratio of the length of the reduced display screen to the original length of the display screen is equal to the width of the maximum rectangular area and the original of the display screen. The ratio of the width. A touch display device includes a display module, a touch panel, and a control system, wherein the control system includes: a detection module for detecting a damaged portion of the touch panel; and a display control module for When detecting the damaged portion of the touch panel, determining whether the proportion of the damaged portion of the touch panel exceeds a first predetermined value, and if the proportion of the damaged portion does not exceed the first predetermined value, the display control module controls the The touch display device enters the first mode, and adjusts the display screen of the touch display device to a display area corresponding to a maximum rectangular area included in the non-damaged portion of the touch panel for display. The touch display device of claim 22, wherein the control system further includes a performance setting module, configured to preset at least one display content; wherein the display screen of the touch display device is the advance Setting at least one display content; the display control module is based on the one The setting of the setting module is performed, and the at least one display content set in advance is displayed in a display area corresponding to the non-damaged portion. The touch display device of claim 22, wherein the display control module is further configured to control the touch display device to enter the second mode when the proportion of the damaged portion exceeds the first predetermined value, In the second mode, the display area corresponding to the non-damaged portion of the touch display device displays a predetermined operation interface. The touch display device of claim 24, wherein the preset operation interface comprises at least one operation button for calling a preset contact. The touch display device of claim 24, wherein the control system further comprises a personalized setting module, and the preset operation interface is preset by the personalized setting module. The touch display device of claim 22 or 23, wherein the detection module is further configured to control the touch display when the proportion of the completely damaged or damaged portion of the touch panel is greater than a second predetermined value. The device enters a third mode in which the touch display device initiates a predetermined control function. The touch display device of claim 27, wherein the preset control function is a voice control function to control the touch display device to perform a predetermined function according to the received voice command. The touch display device of claim 27, wherein the touch display device further comprises at least one mechanical button, and the preset control function is a button control function, when the at least one mechanical button is operated, the touch The control display device performs a preset function corresponding to the at least one mechanical button. The touch display device of claim 29, wherein the preset function corresponding to the at least one mechanical button comprises calling a preset contact. The touch display device of claim 22 or 23, wherein the touch display device further includes a touch chip, and the detecting module activates the touch by transmitting a detection command to the touch wafer Control the self-test function of the chip to detect the damaged part of the touch panel. The touch display device of claim 31, wherein the detecting module sends the detecting command to the touch wafer at a fixed time to perform a self-test on the touch panel. The touch display device of claim 31, wherein the detection module sends the detection command to the touch wafer to perform self-test on the touch panel when the touch display device is powered on. . The touch display device of claim 22 or 23, wherein the touch display device further includes a touch chip, the detection module controlling the touch chip to send a scan signal to the touch panel The control electrode then detects the damaged portion of the touch panel according to whether the touch electrode is back to the scan signal. The touch display device of claim 34, wherein the touch electrode of the touch panel comprises a driving electrode and a sensing electrode, the driving electrode is configured to receive a scanning signal, and the sensing electrode is configured to receive at the driving electrode After the scan signal is sent back to the touch sensor chip, the sensing signal includes a capacitance value signal between the driving electrode and the sensing electrode. The touch display device according to claim 22, wherein the display control module reduces the display screen according to the length and width of the maximum rectangular area, and displays the reduced display screen in the maximum rectangular area. In the display area, the length and width of the reduced display screen are respectively the same as the length and width of the maximum rectangular area. The touch display device according to claim 22, wherein the display control module displays the length and width dimensions of the display screen in a scaled manner according to the length of the maximum rectangular area, and displays the corresponding size in the maximum rectangular area. a display area, wherein a length of the reduced display screen is equal to a length of the maximum rectangular area, and a ratio of a width of the reduced display screen to an original width of the display screen is equal to a length of the maximum rectangular area and the display The ratio of the original length of the picture. The touch display device according to claim 22, wherein the display control module displays the length and width dimensions of the display screen in a scaled manner according to the width of the maximum rectangular area, and displays the corresponding size in the maximum rectangular area. Within the display area, where the width of the reduced display is The width of the largest rectangular area is equal, and the ratio of the length of the reduced display picture to the original length of the display picture is equal to the ratio of the width of the maximum rectangular area to the original width of the display picture. The touch display device of claim 22, wherein the touch panel of the touch display device is an OGS type or a TOL type touch panel.