Display device

Abstract

The embodiment of the utility model discloses a display device, which comprises a display panel, a crack detection line, a circuit board and a detection module, and is characterized in that the display panel comprises a display area and a non-display area arranged around the display area; the crack detection line is arranged in the non-display area and surrounds the display area; the circuit board is connected with the display panel, an input voltage detection point and an output voltage detection point are arranged on the circuit board, one end of the crack detection line is connected with the input voltage detection point, and the other end of the crack detection line is connected with the output voltage detection point; and the detection module is connected with the output voltage detection point and is used for comparing the voltage of the output voltage detection point with the threshold voltage and outputting a detection signal for detecting whether the display panel is broken or not. According to the technical scheme provided by the embodiment of the utility model, the display panel breakage condition which cannot be recognized by human eyes can be presented, and the detection effect and the user experience effect can be improved.

Description

Technical Field

[0001] This utility model relates to the field of display technology, and in particular to a display device. Background Technology

[0002] With the development of display technology, people have increasingly higher requirements for the display quality of display devices.

[0003] Display devices typically include a display panel. In existing display devices, cracks that are invisible to the human eye can easily appear at the edges of the display panel, causing it to break. This breakage can lead to abnormal display images, screen flickering, and other undesirable effects. Currently, display panel breakage can usually only be detected with a microscope, which is time-consuming and laborious, and reduces the user experience. Utility Model Content

[0004] This utility model provides a display device to improve the detection effect of cracks that are invisible to the human eye and improve the user experience.

[0005] According to one aspect of the present invention, a display device is provided, comprising:

[0006] A display panel, the display panel including a display area and a non-display area surrounding the display area;

[0007] A crack detection line is disposed in the non-display area and surrounds the display area;

[0008] A circuit board connected to the display panel, the circuit board having an input voltage detection point and an output voltage detection point, one end of a crack detection line being connected to the input voltage detection point, and the other end of the crack detection line being connected to the output voltage detection point;

[0009] The detection module is connected to the output voltage detection point. The detection module is used to compare the voltage of the output voltage detection point with the threshold voltage and output a detection signal to determine whether the display panel is broken.

[0010] Optionally, it also includes a current-limiting resistor and a capacitor, wherein the first end of the current-limiting resistor is connected to the output voltage detection point, the second end of the current-limiting resistor is grounded, and the capacitor is connected in parallel with the current-limiting resistor.

[0011] Optionally, the voltage at the output voltage detection point and the voltage at the input voltage detection point satisfy the following relationship:

[0012] Uo = Ui * (r01 / r02);

[0013] Wherein, Uo is the voltage of the output voltage detection point, Ui is the voltage of the input voltage detection point, r01 is the resistance value of the crack detection line, and r02 is the resistance value of the current limiting resistor;

[0014] The resistance value of the current-limiting resistor is greater than the resistance value of the crack detection line.

[0015] Optionally, the threshold voltage is adjustable.

[0016] Optionally, the threshold voltage is greater than or equal to 0.9 times the voltage of the output voltage detection point, and the threshold voltage is not equal to the voltage of the output voltage detection point.

[0017] Optionally, the display panel further includes a chip bonding area disposed in the non-display area, and the crack detection line is located on the side of the chip bonding area away from the display area.

[0018] Optionally, the detection module includes a first comparison unit and a register unit. The first input terminal of the first comparison unit is connected to the output voltage detection point, the second input terminal of the first comparison unit is connected to the register unit, the register unit stores the threshold voltage, and the output terminal of the first comparison unit outputs the detection signal.

[0019] The detection module also includes a communication interface, and the register unit is connected to the communication interface.

[0020] Optionally, the display device further includes a source driver chip located in the non-display area of ​​the display panel, and the detection module is integrated inside the source driver chip. The source driver chip is used to enter a self-protection mode in response to the detection signal when the display panel breaks.

[0021] Optionally, the detection module includes a second comparison unit, and the display device further includes a control unit. The first input terminal of the second comparison unit is connected to the voltage of the output voltage detection point, the second input terminal of the second comparison unit is connected to the first output terminal of the control unit, the output terminal of the second comparison unit is connected to the input terminal of the control unit, and the output terminal of the second comparison unit outputs the detection signal.

[0022] Optionally, the display device further includes a client unit and a source driver chip, wherein the detection module and the control unit are both integrated on the client unit, and the source driver chip is disposed in the non-display area of ​​the display panel;

[0023] The client-side device also includes a display system, which is connected to the second output terminal of the control unit and the source driver chip. The display system is used to send preset display data to the source driver chip in response to the detection signal when the display panel is broken.

[0024] The technical solution provided by this utility model embodiment sets crack detection lines in the non-display area of ​​the display panel, arranging the crack detection lines around the display area. One end of the crack detection line is connected to an input voltage detection point, and the other end is connected to an output voltage detection point. An input voltage is provided to the input voltage detection point. The detection module detects the output voltage of the output voltage detection point and compares it with a threshold voltage. Based on the comparison result, it outputs a detection signal indicating whether the display panel is cracked. This detection signal can reveal display panel cracks that are invisible to the human eye, improving detection effectiveness and user experience, and enhancing product competitiveness.

[0025] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of a display device provided in an embodiment of the present utility model;

[0028] Figure 2 This is a schematic diagram of another display device provided in an embodiment of the present utility model;

[0029] Figure 3 This is a schematic diagram of another display device provided in an embodiment of the present utility model;

[0030] Figure 4 for Figure 3 A partially enlarged schematic diagram of the display device shown;

[0031] Figure 5 This is a schematic diagram of another display device provided in an embodiment of the present utility model;

[0032] Figure 6 A schematic diagram of the internal structure of a source driver chip provided in an embodiment of this utility model;

[0033] Figure 7 This is a schematic diagram of the overall structure of the client machine provided in an embodiment of the present utility model;

[0034] Figure 8 A detection flowchart of a display device provided for an embodiment of this utility model;

[0035] Wherein, AA - display area; NA - non-display area; A1 - input voltage detection point; A2 - output voltage detection point; R1 - current limiting resistor; C1 - capacitor;

[0036] 100 - Display panel; 200 - Crack detection line; 300 - Circuit board; 400 - Detection module;

[0037] 101-First chip bonding area; 102-Second chip bonding area; 401-First comparator unit; 402-Register unit; 403-Communication interface; 404-Second comparator unit;

[0038] 501 - Source driver chip; 502 - Gate driver chip; 601 - Control unit; 602 - Display system. Detailed Implementation

[0039] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0040] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0041] Figure 1 This is a schematic diagram of the structure of a display device provided in an embodiment of the present utility model, with reference to... Figure 1The display device provided in this embodiment includes:

[0042] Display panel 100, the display panel 100 includes a display area AA and a non-display area NA arranged around the display area AA;

[0043] Crack detection line 200 is set in the non-display area NA and surrounds the display area AA;

[0044] Circuit board 300 is connected to display panel 100. Circuit board 300 is provided with input voltage detection point A1 and output voltage detection point A2. One end of crack detection line 200 is connected to input voltage detection point A1 and the other end of crack detection line 200 is connected to output voltage detection point A2.

[0045] The detection module 400 is connected to the output voltage detection point A2. The detection module 400 is used to compare the voltage at the output voltage detection point A2 with the threshold voltage and output a detection signal DES indicating whether the display panel 100 is broken.

[0046] Specifically, the circuit board 300 can be a flexible circuit board, bonded to the display panel 100. A crack detection line 200 is disposed at the edge of the display panel 100 to identify whether a crack has appeared in the display panel 100. For example, when the edge of the display panel 100 cracks, the crack detection line 200 will break; when the edge of the display panel 100 is intact, the crack detection line 200 remains intact. During the detection process, a voltage is input to the input voltage detection point A1. When the edge of the display panel 100 is intact, the input voltage received at the input voltage detection point A1 is output to the output voltage detection point A2 through the crack detection line 200, generating a voltage drop, and the output voltage is obtained at the output voltage detection point A2. When the edge of the display panel 100 cracks, the crack detection line 200 breaks, and the crack detection line 200 has a higher impedance, resulting in a lower voltage or no voltage output at the output voltage detection point A2.

[0047] The detection module 400 acquires the output voltage at the output voltage detection point A2 and compares it with a threshold voltage. Based on the comparison result, it outputs a corresponding detection signal DES. The detection module 400 can report an error based on its own output detection signal DES or feed the detection signal DES back to the display system to display a specific image, thereby visualizing the crack in the display panel 100 so that it can be easily detected by the human eye. For example, if the output voltage is greater than or equal to the threshold voltage, it can be characterized that the display panel 100 is not cracked; if the output voltage is less than the threshold voltage, it can be characterized that the display panel 100 is cracked.

[0048] The technical solution provided in this embodiment of the utility model involves setting a crack detection line 200 in the non-display area NA of the display panel 100, with the crack detection line 200 arranged around the display area AA. One end of the crack detection line 200 is connected to an input voltage detection point A1, and the other end is connected to an output voltage detection point A2. An input voltage is provided to the input voltage detection point A1. The detection module 400 detects the output voltage at the output voltage detection point A2 and compares this output voltage with a threshold voltage. Based on the comparison result, it outputs a detection signal DES indicating whether the display panel 100 is cracked. The detection signal DES can reveal cracks in the display panel 100 that are invisible to the human eye, which improves the detection effect and user experience, thereby enhancing product competitiveness.

[0049] Figure 2 This is a schematic diagram of another display device provided in an embodiment of the present invention, with reference to... Figure 2 Optionally, based on the above embodiments, a current-limiting resistor R1 and a capacitor C1 are also included. The first end of the current-limiting resistor R1 is connected to the output voltage detection point A2, the second end of the current-limiting resistor R1 is grounded, and the capacitor C1 is connected in parallel with the current-limiting resistor R1. The capacitor C1 can be used for filtering.

[0050] In this embodiment, the voltage at output voltage detection point A2 and the voltage at input voltage detection point A1 satisfy the following relationship:

[0051] Uo = Ui * (r01 / r02);

[0052] Where Uo is the output voltage of the output voltage detection point, Ui is the input voltage of the input voltage detection point, r01 is the resistance value of the crack detection line, and r02 is the resistance value of the current limiting resistor.

[0053] Optionally, the resistance value of the current-limiting resistor R1 is greater than the resistance value of the crack detection line 200, which is beneficial to improving the output voltage Uo of the output voltage detection point A2. The resistance value r01 of the crack detection line 200 can be designed according to actual requirements.

[0054] In this embodiment, the threshold voltage is an adjustable voltage. The specific value of the threshold voltage can be adjusted according to the actual setting of the crack detection line 200, so as to ensure that the threshold voltage can be set within a reasonable range, thereby improving the accuracy of crack detection of the display panel 100.

[0055] Optionally, the threshold voltage is greater than or equal to 0.9 times the output voltage Uo of the output voltage detection point A2, but the threshold voltage is not equal to the voltage of the output voltage detection point A2. That is, the threshold voltage can be taken as 10% of the output voltage Uo as a reference to ensure redundancy of the threshold voltage and facilitate comparison between the threshold voltage and the output voltage Uo. For example, with an input voltage Ui of 3.3V, a resistance value r01 of the crack detection line 200 of 100Ω, and a resistance value r02 of the current limiting resistor R1 of 1KΩ, the output voltage Uo is 2.97V according to the above formula, and the threshold voltage is 2.7V. Compare the output voltage Uo with the threshold voltage. During the detection process, when the output voltage Uo is greater than or equal to 2.7V, it can be determined that the display panel 100 is not cracked; when the output voltage Uo is less than 2.7V, it can be determined that the display panel 100 is cracked.

[0056] Figure 3 This is a schematic diagram of another display device provided in an embodiment of the present utility model. Figure 4 for Figure 3 A partially enlarged schematic diagram of the display device shown is as follows: Figure 3 The enlarged structure within the dashed box is referenced. Figure 3 and Figure 4 Based on the above embodiments, optionally, the display panel 100 further includes a chip bonding area disposed in the non-display area NA, and the crack detection line 200 is located on the side of the chip bonding area away from the display area NA. Exemplarily, the chip bonding area includes a first chip bonding area 101 and a second chip bonding area 102, which are located on different sides of the display panel 100. The first chip bonding area 101 and the second chip bonding area 102 are respectively used to bond different driver chips to provide drive signals to the display panel 100.

[0057] Combination Figure 4 A cascaded signal line 103 is provided between the first chip bonding area 101 and the second chip bonding area 102. The cascaded signal line 103 is used to transmit cascaded signals. The crack detection line 200 is located on the side of the chip bonding area away from the display area AA and does not overlap with the cascaded signal line 103, which helps to improve the accuracy of edge detection of the display panel 100.

[0058] Figure 5 This is a schematic diagram of another display device provided in an embodiment of the present invention, with reference to... Figure 5The display device further includes a source driver chip 501 located in the non-display area NA of the display panel 100. The source driver chip 501 provides pixel voltage to the driving circuit in the display panel 100. The display device also includes a gate driver chip 502 located in the non-display area NA of the display panel 100. The gate driver chip 502 provides a gate drive signal to the driving circuit. Taking a liquid crystal display panel as an example, the driving circuit may include transistors. The transistors are turned on in response to the gate drive signal, transmitting the pixel voltage to the pixel electrode.

[0059] Combination Figure 4 and Figure 5 The first chip bonding area 101 can be used to bond the source driver chip 501, and the second chip bonding area 102 can be used to bond the gate driver chip 502.

[0060] In this embodiment, the detection module 400 can be integrated inside the source driver chip 501. Figure 6 This is a schematic diagram of the internal structure of a source driver chip provided in an embodiment of the present invention, with reference to... Figure 5 and Figure 6 The detection module 400 includes a first comparison unit 401 and a register unit 402. The first input terminal of the first comparison unit 401 is connected to the output voltage detection point A2, and the second input terminal of the first comparison unit 401 is connected to the register unit 402. The register unit 402 stores the threshold voltage, and the output terminal of the first comparison unit 401 outputs the detection signal DES.

[0061] Specifically, the source driver chip 501 is connected to the output voltage detection point A2. The output voltage of the output voltage detection point A2 is transmitted back to the source driver chip 501. The detection module 400 inside the source driver chip 501 determines whether the edge of the display panel 100 is cracked based on the relationship between the output voltage Uo of the output detection point A2 and the threshold voltage.

[0062] The first comparison unit 401 may include a first voltage comparator OC1. The positive input terminal of the first voltage comparator OC1 is connected to the output voltage detection point A2, and the negative input terminal of the first voltage comparator OC1 is connected to the register unit 402. The first power supply terminal of the first voltage comparator OC1 is connected to the VCC voltage, and the second power supply terminal is grounded. When the output voltage Uo is greater than or equal to the threshold voltage, the output terminal of the first voltage comparator OC1 outputs a high-level detection signal DES, which indicates that the edge of the display panel 100 is not broken, the source driver chip 501 has not reported an error, and the source driver chip 501 will not enter the self-protection mode. The source driver chip 501 transmits the high-level detection signal DES to the display system, and the display device can display normally.

[0063] When the output voltage Uo is less than the threshold voltage, the output of the first voltage comparator OC1 outputs a low-level detection signal DES, indicating that the edge of the display panel 100 is cracked. The source driver chip 501 reports an error and enters self-protection mode. The source driver chip 501 transmits the low-level detection signal DES to the display system, and the display device fails to display normally.

[0064] The technical solution provided in this embodiment integrates a detection module 400 inside the source driver chip 501. The detection module outputs a high-low level detection signal DES to the display system by comparing the output voltage Uo and the threshold voltage, thus visualizing the crack situation that cannot be captured by the human eye. By observing the display of the display device, it can be determined whether the edge of the display panel 100 has cracked.

[0065] Optionally, the detection module 400 also includes a communication interface 403, and the register unit 402 is connected to the communication interface 403. For example, the register unit 402 and the communication interface 403 can be connected via a bus. The encoding of the register unit 402 can be configured through the communication interface 403, thereby adjusting different threshold voltages to match different display devices.

[0066] Alternatively, in another embodiment provided in this example, the detection module 400 can also be integrated into the client machine, which helps to reduce the cost of the source driver chip 501. Figure 7 This is a schematic diagram of the overall structure of the client machine provided in an embodiment of the present utility model, with reference to... Figure 3 and Figure 7 The detection module 400 includes a second comparison unit 401, and the display device also includes a control unit 601. The first input terminal of the second comparison unit 404 is connected to the output voltage detection point A2, the second input terminal of the second comparison unit 404 is connected to the first output terminal of the control unit 601, the output terminal of the second comparison unit 404 is connected to the input terminal of the control unit 601, and the output terminal of the second comparison unit 404 outputs the detection signal DES.

[0067] The control unit 601 and the detection module 400 are both integrated on the client machine. During the detection process, the output voltage at the output voltage detection point A2 is given to the first input terminal of the second comparison unit 404. The second input terminal of the second comparison unit 404 receives the threshold voltage output by the control unit 601 (this threshold voltage can be set to different values ​​according to the actual situation). The second comparison unit 404 outputs a high or low level detection signal DES to the control unit 601.

[0068] Optionally, the second comparison unit 404 may include a second voltage comparator OC2. The positive input terminal of the second voltage comparator OC2 serves as the first input terminal of the second comparison unit 404, the negative input terminal of the second voltage comparator OC2 serves as the second input terminal of the second comparison unit 404, and the output terminal of the second voltage comparator OC2 serves as the output terminal of the second comparison unit 404. The first power supply terminal of the second voltage comparator OC2 is connected to the VCC voltage, and the second power supply terminal is grounded.

[0069] The client-side unit also includes a display system 602, which is connected to the second output terminal of the control unit 601 and the source driver chip 501. The display system 602 is used to send preset display data to the source driver chip 501 in response to the detection signal DES when the display panel breaks. The preset display data is display data that enables the display panel to display a specific image, such as a black and white image.

[0070] When the output voltage Uo is greater than or equal to the threshold voltage, the output of the first voltage comparator OC1 outputs a high-level detection signal DES, indicating that the edge of the display panel 100 is not broken, the client device does not detect any abnormality (e.g., the control unit 601 does not report an error), and the display system 602 does not send preset display data; the display panel 100 displays normally. When the output voltage Uo is less than the threshold voltage, the output of the first voltage comparator OC1 outputs a low-level detection signal DES, indicating that the edge of the display panel 100 is broken, the client device detects an abnormality, and the display system 602 sends preset display data to the source driver chip 501 according to the signal output by the control unit 601; the display panel 100 displays a normal black and white image.

[0071] The technical solution provided in this embodiment integrates a detection module 400 on the client machine. The detection module compares the output voltage Uo with the threshold voltage and outputs a high-low level detection signal DES to the control unit 601 on the machine. The control unit 601 controls the display system 602 to send preset display data to the source driver chip 501 according to the received detection signal DES, so as to visualize the crack situation that cannot be captured by the human eye. By observing the display of the display device, it can be determined whether the edge of the display panel 100 has cracked.

[0072] Figure 8 A detection flowchart of a display device provided in this embodiment of the present utility model, combined with Figures 1-8The crack detection line 200 is connected to the input voltage detection point A1 and the output voltage detection point A2 respectively. The input voltage Ui is provided to the input detection point A1, and the output voltage Uo of the output voltage detection point A2 is detected. The detection module 400 compares the output voltage Uo with the threshold voltage. If the output voltage Uo is greater than or equal to the threshold voltage, it is determined to pass (i.e., the edge of the display panel 100 is not cracked); if the output voltage Uo is less than the threshold voltage, it is determined to fail (i.e., the edge of the display panel 100 is cracked).

[0073] When the edge of the display panel 100 is cracked, it can be visualized by the source driver chip 501 reporting an error and entering a self-protection mode, or by detecting the abnormality of the whole machine and outputting a black and white image, so that the human eye can capture the cracking phenomenon of the display panel 100 without the aid of a microscope.

[0074] Conversely, when the edge of the display panel 100 is not cracked, the source driver chip 501 will not report an error and will not enter the self-protection mode, or the whole machine will not detect any abnormality and will not output a black and white image, and the display device can display normally.

[0075] The technical solution provided by this utility model embodiment, after the display screen malfunctions, can visually present whether the source driver chip 501 reports an error and enters a self-protection mode, or whether the whole machine detects the abnormality and outputs a black and white screen. This allows the human eye to determine whether the edge of the display panel 100 is cracked, which is beneficial to improving product competitiveness and technological feel.

[0076] Optionally, in this embodiment, the display device can be a liquid crystal display device or an OLED display device, and this embodiment does not limit it.

[0077] It should be understood that the various forms of the process shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this utility model can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this utility model can be achieved, and this is not limited herein.

[0078] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A display device, characterized by comprising: The display panel comprises a display area and a non-display area surrounding the display area. A crack detection line is arranged in the non-display area and surrounds the display area. A circuit board is connected to the display panel, and the circuit board is provided with an input voltage detection point and an output voltage detection point. One end of the crack detection line is connected to the input voltage detection point, and the other end of the crack detection line is connected to the output voltage detection point. A current-limiting resistor is connected to the output voltage detection point. A detection module is connected to the output voltage detection point, and the detection module is used to compare the voltage of the output voltage detection point with a threshold voltage and output a detection signal of whether the display panel is broken. The voltage of the output voltage detection point and the voltage of the input voltage detection point satisfy the following relationship: ； wherein Uo is the voltage of the output voltage detection point, Ui is the voltage of the input voltage detection point, r01 is the resistance value of the crack detection line, and r02 is the resistance value of the current-limiting resistor.

2. The display device according to claim 1, wherein The display device further comprises a capacitor connected in parallel to the current-limiting resistor.

3. The display device according to claim 2, wherein The resistance value of the current-limiting resistor is greater than the resistance value of the crack detection line.

4. The display device according to claim 1, wherein The threshold voltage is adjustable.

5. The display device according to claim 1, wherein The threshold voltage is greater than or equal to 0.9 times the voltage of the output voltage detection point, and the threshold voltage is not equal to the voltage of the output voltage detection point.

6. The display device according to claim 1, wherein The display panel further comprises a chip bonding area arranged in the non-display area, and the crack detection line is located on a side of the chip bonding area away from the display area.

7. The display device according to claim 1, wherein The detection module comprises a first comparison unit and a register unit, a first input end of the first comparison unit is connected to the output voltage detection point, a second input end of the first comparison unit is connected to the register unit, the threshold voltage is stored in the register unit, and an output end of the first comparison unit outputs the detection signal. The detection module further comprises a communication interface, and the register unit is connected to the communication interface.

8. The display device according to claim 7, wherein The display device further comprises a source driving chip, the source driving chip is located in the non-display area of the display panel, the detection module is integrated in the source driving chip, and the source driving chip is used to enter a self-protection mode in response to the detection signal when the display panel is broken.

9. The display device according to claim 1, wherein The detection module comprises a second comparison unit, the display device further comprises a control unit, a first input end of the second comparison unit is connected to the voltage of the output voltage detection point, a second input end of the second comparison unit is connected to a first output end of the control unit, an output end of the second comparison unit is connected to an input end of the control unit, and the output end of the second comparison unit outputs the detection signal.

10. The display device according to claim 9, wherein The display device further comprises a client whole machine and a source driving chip, the detection module and the control unit are integrated on the client whole machine, and the source driving chip is arranged in the non-display area of the display panel. The client machine further comprises a display system connected with the second output end of the control unit and the source driving chip, and the display system is used for sending preset display data to the source driving chip in response to the detection signal when the display panel is broken.

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