Electronic device

Abstract

To provide an electronic device with a fatigue detection function.SOLUTION: An electronic device with a fatigue detection function is provided, comprising a keyboard having at least one key, a key detection circuit for detecting the pressed state of the key to generate a first detection signal, a first processing circuit for converting the first detection signal into a first processing signal, a control circuit configured to determine whether a specific event has occurred or not according to the first processing signal and, in response to occurrence of the specific event, send a reminder signal, and a display screen for displaying a reminder image according to the reminder signal.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] This application claims priority to Taiwan Patent Application No. 113117665, filed May 14, 2024, all of which are incorporated herein by reference.

[0002] The present invention relates to an electronic device, and more particularly to an electronic device having a fatigue detection function. [Background technology]

[0003] The risk of myopia increases the longer a user looks at an electronic device. Furthermore, looking at an electronic device for a long period of time can cause fatigue (falling asleep) without the user even realizing it. Furthermore, while dozing off, users may accidentally touch the keyboard, accidentally writing or deleting content from an open document. Summary of the Invention [Problem to be solved by the invention]

[0004] To provide an electronic device equipped with a fatigue detection function. [Means for solving the problem]

[0005] According to one embodiment of the present disclosure, an electronic device with a fatigue detection function is provided. The electronic device with a fatigue detection function includes a keyboard, a key detection circuit, a first processing circuit, a control circuit, and a display screen. The keyboard includes at least one key. The key detection circuit detects a key press state and generates a first detection signal. The first processing circuit converts the first detection signal into a first processed signal. The control circuit determines whether a specific event has occurred in response to the first processed signal. In response to the specific event, the control circuit transmits a reminder signal. The display screen displays a reminder image in response to the reminder signal. [Brief explanation of the drawings]

[0006] The present invention can be more fully understood from the following detailed description and examples, taken in conjunction with the accompanying drawings. [Figure 1] 1 is a schematic diagram illustrating an exemplary embodiment of an electronic device. [Figure 2] 1 is a schematic diagram illustrating the internal structure of one exemplary embodiment of an electronic device. [Figure 3] FIG. 2 is a schematic diagram illustrating an exemplary embodiment of a key detection circuit. [Figure 4] FIG. 10 is a schematic diagram illustrating the internal structure of another exemplary embodiment of an electronic device. DETAILED DESCRIPTION OF THE INVENTION

[0007] The present invention will be described with respect to particular embodiments and with reference to certain drawings but the invention is not limited thereto but only by the claims. The drawings described are merely schematic and are non-limiting. In the drawings, the size of some of the elements may be exaggerated for illustrative purposes and not drawn to scale. The dimensions and relative dimensions do not correspond to actual dimensions in the practice of the invention.

[0008] FIG. 1 is a schematic diagram illustrating an exemplary embodiment of an electronic device. The present invention does not limit the type of electronic device 100. In this embodiment, the electronic device 100 is a laptop computer. The electronic device 100 has a fatigue detection function. The electronic device 100 detects the behavior of the user 110 and determines whether the user 110 has experienced fatigue. When the electronic device 100 detects that the user 110 has experienced fatigue, the electronic device 100 presents or displays a reminder image to promptly notify the user 110 to stand up and stretch. Furthermore, when the user 110 has been looking at the electronic device 100 for too long, the electronic device 100 notifies the user 110 to take a break or move away from the electronic device 100.

[0009] FIG. 2 is a schematic diagram showing the internal structure of the electronic device 100. For convenience of explanation, FIG. 2 shows only the component circuits related to the present invention and is not intended to limit the present invention. The electronic device 100 may include other hardware components or software for controlling the hardware, which will not be described in detail here. As shown in FIG. 2, the electronic device 100 includes a keyboard 210, a key detection circuit 220, a processing circuit 230, a control circuit 240, and a display screen 250.

[0010] Keyboard 210 includes at least one key. In this embodiment, keys SW1-SW6 are shown in FIG. 2, but the invention is not limited thereto. In other embodiments, keyboard 210 may include more or fewer keys. In one embodiment, keyboard 210 is the keyboard of a laptop computer.

[0011] The key detection circuit 220 detects the depression state of the keys SW1 to SW6 and outputs a detection signal S D1 In one embodiment, the key detection circuit 220 sequentially detects the depression states of the keys SW1 to SW6. FIG. 3 is a schematic diagram showing the key detection circuit 220 of the present invention. The key detection circuit 220 includes a resistor R1. The resistor R1 is connected between a power supply terminal VCC and a node ND. The key SW1 is connected between the node ND and a power supply terminal VSS. In another embodiment, the key detection circuit 220 further includes a capacitor C1. The capacitor C1 is connected between the node ND and the power supply terminal VSS.

[0012] In another embodiment, the number of resistors in key detection circuit 220 is related to the number of keys on keyboard 210. For example, when keyboard 210 includes keys SW1 to SW6, key detection circuit 220 further includes resistors R2 to R6. Resistor R2 is connected between node ND and key SW2. Key SW2 is connected between resistor R2 and power supply terminal VSS. Resistor R3 is connected between keys SW2 and SW3. Key SW3 is connected between resistor R3 and power supply terminal VSS. Resistor R4 is connected between keys SW3 and SW4. Key SW4 is connected between resistor R4 and power supply terminal VSS. Resistor R5 is connected between keys SW4 and SW5. Key SW5 is connected between resistor R5 and power supply terminal VSS. Resistor R6 is connected between keys SW5 and SW6. Key SW6 is connected between resistor R6 and power supply terminal VSS.

[0013] Each of the keys SW1 to SW6 has an equivalent impedance. The stronger the force with which a particular key (such as key SW1) is pressed, the smaller the equivalent impedance of that particular key. The lighter the force with which a particular key (such as key SW1) is pressed, the larger the equivalent impedance of that particular key. Therefore, it is possible to detect or determine whether or not any of the keys SW1 to SW6 has been pressed and the force with which the keys SW1 to SW6 were pressed, depending on the voltage level of the node ND. In this embodiment, the voltage level of the node ND is used as the detection signal S D1 It functions as:

[0014] As shown in FIG. 2, the processing circuit 230 receives the detection signal S D1 is converted to the processed signal S P1 In one embodiment, processing circuit 230 is an analog-to-digital conversion (ADC) circuit. In this embodiment, the ADC circuit converts the voltage at node ND from an analog format to a digital format and generates the result as a processed signal S P1 Let's say.

[0015] The control circuit 240 outputs the processed signal S P1If the specific event occurs, it indicates that the user 110 has experienced a fatigue state. Therefore, the control circuit 240 generates a reminder signal S N The present invention does not limit the structure of the control circuit 240. In one embodiment, the control circuit 240 includes an embedded controller (EC).

[0016] The control circuit 240 outputs the processed signal S P1 When the force with which any of the keys SW1 to SW6 is pressed does not satisfy the first predetermined condition, the control circuit 240 determines that a specific event has occurred. Therefore, the control circuit 240 generates a reminder signal S N In another embodiment, the control circuit 240 transmits the processed signal S P1 When the frequency at which any of the keys SW1 to SW6 is pressed does not satisfy the second predetermined condition, the control circuit 240 determines that a specific event has occurred. Therefore, the control circuit 240 generates a reminder signal S N Send.

[0017] In another embodiment, the control circuit 240 controls the processed signal S P1 When the time that any of the keys SW1 to SW6 is continuously pressed is longer than the first predetermined time, the control circuit 240 outputs a reminder signal S N In this embodiment, when any of the keys SW1 to SW6 is continuously pressed for a period longer than the first predetermined time, it indicates that the user 110 may fall asleep due to excessive fatigue and press the specific key with his / her finger. Therefore, the control circuit 240 transmits a reminder signal S N After sending this, it can go into sleep mode.

[0018] In some embodiments, the control circuit 240 first detects the processed signal S within a preset period (such as one hour or one minute).P1 Collect and process the signal S P1 For example, the control circuit 240 first calculates the processed signal S P1 The average force with which the user 110 presses the keys on the keyboard 210 in one minute is determined as a value in the range of, for example, 700 to 1000, and the average force is set as the first predetermined condition. In this case, when any of the keys SW1 to SW6 is pressed with a force value that does not fall within the range of 700 to 1000 (for example, a force value smaller than 400), the control circuit 240 generates a reminder signal S N Furthermore, if the force value when any of keys SW1 to SW6 is pressed suddenly changes to 1000 or 0, this indicates that user 110 may have fallen asleep while pressing any of keys SW1 to SW6, or that user 110 may have fallen asleep without using keyboard 210. Therefore, control circuit 240 automatically enters sleep mode, realizing a power-saving function.

[0019] In another embodiment, the control circuit 240 controls the processed signal S P1 In response to the processed signal S, the frequency with which the user 110 presses the keys on the keyboard 210 is calculated, and the calculation result is used as the second predetermined condition. P1 In response to this, the control circuit 240 determines that the average frequency at which the user 110 presses the key is 60 times per minute (i.e., the second predetermined condition). In this case, when the frequency at which the user 110 presses the key is less than 1 / 3 of the average frequency (e.g., 20 times), the control circuit 240 generates a reminder signal S N Send.

[0020] The display screen 250 displays the reminder signal S NIn response to the request, the control circuit 240 displays or shows a reminder screen to notify the user 110 whether they need to take a break. In one embodiment, the control circuit 240 uses a WMI method to work with the BIOS and EC to directly pop up a reminder message on the display screen 250 under the OS. In another embodiment, the control circuit 240 triggers a specific application program (APP) to notify the user 110 whether a fatigue state has occurred and whether they need to take a break. In some embodiments, the specific application program also notifies the user 110 of the current usage status of the electronic device 100, such as the temperature of the GPU or the speed of the fan. The user 110 can also adjust the fan speed or the color of the LED light on the housing of the electronic device 100 through the specific application program.

[0021] 4 is a schematic diagram showing the internal structure of another exemplary embodiment of an electronic device. As shown in FIG. 4, the electronic device 400 includes a keyboard 410, a key detection circuit 420, processing circuits 430 and 470, a control circuit 440, a display screen 450, and an image detection circuit 460. The features of the keyboard 410, the key detection circuit 420, the processing circuit 430, and the display screen 450 are similar to those of the keyboard 210, the key detection circuit 220, the processing circuit 230, and the display screen 250 in FIG. 2, and therefore, related descriptions will be omitted here.

[0022] In this embodiment, the image detection circuit 460 detects the user's face and generates a detection signal S D2 The present invention does not limit the structure of the image detection circuit 460. In one embodiment, the image detection circuit 460 includes a lens (not shown). The lens can be fixed to the housing of the electronic device 400.

[0023] The processing circuit 470 processes the detection signal S via a first algorithm. D2 and process the processed signal S P2 In one embodiment, the processing circuit 470 generates the detection signal S D2 is fed into a first algorithm to analyze changes in the user's eyes, the user's mouth, or both.

[0024] The control circuit 440 outputs the processed signal S P1 and S P2 In one embodiment, the control circuit 440 determines whether a particular event has occurred in response to the processed signal S P1 In another embodiment, the control circuit 440 determines the force with which the keys of the keyboard 410 are pressed and the frequency with which the keys are pressed in response to the processed signal S P2 Depending on the frequency, the frequency at which the user blinks and the frequency at which the user's mouth is open for a period of time exceeding a predetermined period of time (for example, one second) are determined.

[0025] For example, when the force with which a key on the keyboard 410 is pressed does not satisfy a first predetermined condition (for example, the value of the force with which one key is pressed is not within a range of 700 to 1000), and the frequency with which the user blinks is not within a first normal range (for example, 12 to 17 times per minute), it is determined that a specific event (user fatigue state) has occurred. Therefore, the control circuit 440 outputs a reminder signal S N In another embodiment, when the frequency at which the keys on the keyboard 410 are pressed (e.g., 60-80 times per minute) does not meet a second predetermined condition and the frequency at which the user blinks is not within a first normal range, the control circuit 440 sends a reminder signal S N Send.

[0026] For example, when the force with which the keys on the keyboard 410 are pressed does not meet the first predetermined condition and the frequency with which the user's mouth is open exceeds a predetermined time (e.g., 1 second) increases, the control circuit 440 generates a reminder signal S N In some embodiments, when the frequency at which the keys on the keyboard 410 are pressed does not meet the second predetermined condition and the frequency at which the user's mouth is open for more than the predetermined time increases, the control circuit 440 sends a reminder signal S N Send.

[0027] As described above, the control circuit 440 determines whether the user has experienced symptoms of fatigue according to the force and frequency with which the user presses the keys on the keyboard 410, and outputs the processed signal S P2 In accordance with the processed signal S, it is further determined whether the frequency of the user's blinking has increased or whether the frequency of the user's mouth being open for more than one second has increased. This can improve the accuracy of determining whether the user is experiencing fatigue and reduce the occurrence of false determinations. In some embodiments, the control circuit 440 receives the processed signal S P2 In response to the request, the control circuitry 440 may record the amount of time that the user has been using the electronic device 400. In this case, if the user has been using the electronic device 400 for too long, the control circuitry 440 may notify the user via the display screen 450 to stand up and stretch. In some embodiments, the display screen 450 may display or indicate for reference the amount of time that the user has been continuously using the electronic device 400.

[0028] In one embodiment, the electronic device 400 further includes a distance detection circuit 480. The distance detection circuit 480 detects whether an object is close to the display screen 450, and generates a detection signal S according to the detection result. D3 In this embodiment, the processing circuit 470 generates the detection signal S via a second algorithm. D3 and process the processed signal S P3 The processing circuit 470 generates the detection signal S D3 is fed into a second algorithm to analyze the distance between the object and the display screen 450. In some embodiments, the image detection circuitry 460 and the distance detection circuitry 480 operate simultaneously.

[0029] The control circuit 440 outputs the processed signal S P1 ~S P3 , and determines whether a particular event has occurred. For example, the control circuit 440 determines the force with which a key on the keyboard 410 is pressed or the frequency with which a key on the keyboard 410 is pressed in response to the processed signal SP1. In another embodiment, the control circuit 440 determines whether a particular event has occurred in response to the processed signal SP1. P2In another embodiment, the control circuit 440 determines how often the user blinks or how often the user's mouth is open for more than a predetermined period of time in response to the processed signal S P2 When it is determined that the user is located in front of the display screen 450 in response to the signal S, the object detected by the distance detection circuit 480 is the user's face. P3 However, the control circuit 440 determines whether the distance between the user and the display screen 450 is appropriate in response to the processed signal S P2 When it is determined that the user is not located in front of the display screen 450 in response to the signal S, the control circuit 440 indicates that the object detected by the distance detection circuit 480 is not the user's face. P3 By ignoring the reminder signal S N to avoid sending

[0030] The control circuit 440 outputs the processed signal S P2 When it is determined that the user is located in front of the display screen 450, the processed signal S P1 ~S P3 For example, when the force with which a key on the keyboard 410 is pressed does not meet a first predetermined condition, the user's blink frequency is not within a first normal range, and the distance between the object (i.e., the user) and the display screen 450 detected by the distance detection circuit 480 is not within a second normal range (e.g., greater than 45 cm), the control circuit 440 generates a reminder signal S N The display screen 450 transmits the reminder signal S N The reminder screen may notify the user to take a break or maintain an appropriate distance from the display screen 450, thereby avoiding eye discomfort.

[0031] In another embodiment, when the frequency at which the keys of the keyboard 410 are pressed does not satisfy a second predetermined condition, the frequency at which the user blinks is not within a first normal range, and the distance between the object (i.e., the user) and the display screen 450 detected by the distance detection circuit 480 is not within a second normal range, the control circuit 440 generates a reminder signal S N Send.

[0032] In another embodiment, when the force with which the keys of the keyboard 410 are pressed does not meet the first predetermined condition, the frequency with which the user's mouth is open exceeds the predetermined time increases, and the distance between the object (i.e., the user) and the display screen 450 detected by the distance detection circuit 480 is not within a second normal range, the control circuit 440 outputs a reminder signal S N In some embodiments, when the frequency at which the keys on the keyboard 410 are pressed does not satisfy a second predetermined condition, the frequency at which the user's mouth is open for more than the predetermined time increases, and the distance between the object (i.e., the user) and the display screen 450 detected by the distance detection circuit 480 is not within a second normal range, the control circuit 440 sends a reminder signal S N Send.

[0033] In this embodiment, the control circuit 440 determines whether the user has symptoms of fatigue according to the force and frequency with which the user presses the keys on the keyboard 410, and outputs the processed signal S P2 , and determining whether the user blinks more frequently or keeps their mouth open for more than one second in response to the processed signal S P3In response to this, the distance detection circuit 480 determines that the distance between the object detected by the distance detection circuit 480 and the display screen 450 also decreases. This can improve the accuracy of determining whether the user is fatigued and reduce the occurrence of erroneous determinations. In some embodiments, when the distance between the object (e.g., the user) detected by the distance detection circuit 480 and the display screen 450 is constantly changing, this indicates that the user may be dozing off. Therefore, the control circuit 440 can gradually reduce the brightness of the display screen 450 to achieve a power-saving function.

[0034] In one embodiment, the control circuit 440 controls the processed signal S P1 For example, the control circuit 440 may determine the first predetermined condition by controlling the processing signal S for a preset period (for example, one hour). P1 and calculates the average value of the force with which the user presses the keys on the keyboard 410 in one minute (for example, a value in the range of 700 to 1000). In this case, the control circuit 440 sets the distribution range of the average force (700 to 1000) as the first predetermined condition. In another embodiment, the control circuit 440 calculates the strength of the force with which the user presses the keys on the keyboard 410 in one minute and compares it with the calculated strength of the force for the next minute. If the value of the force with which the user presses the keys on the keyboard 410 suddenly drops below 400 or suddenly changes to 1000 or 0, it indicates that the user fell asleep while pressing the keys on the keyboard 410. Therefore, the control circuit 440 generates a reminder signal S N Send.

[0035] In another embodiment, the control circuit 440 controls the processed signal S P2 For example, the control circuit 440 may define a first normal range depending on the processed signal S for a preset period (e.g., one hour). P2and calculates the frequency at which the user blinks in one minute. In this case, the control circuit 440 determines the distribution range of the user's average blink frequency per minute as the first normal range. In another embodiment, the control circuit 440 compares the blink frequency in the current minute with the blink frequency in the next minute. If the blink frequency in the current minute increases by more than one-third compared to the blink frequency in the previous minute, it indicates that the user is experiencing fatigue. In one embodiment, the control circuit 440 converts the processed signal S P2 When it is determined that the number of times the user's mouth is open for more than one second has increased in response to the signal S, it indicates that the user is experiencing symptoms of fatigue. P1 , and determines whether the force or frequency with which the user presses the keys on the keyboard 410 is abnormal. When the force or frequency with which the user presses the keys on the keyboard 410 does not meet the first predetermined condition, the control circuit 440 outputs a reminder signal S N Send.

[0036] In another embodiment, the control circuit 440 controls the processed signal S P3 For example, the control circuit 440 may define a second normal range depending on the processed signal S P2 When it is determined that the user is positioned in front of the display screen 450 according to the P3 and calculates the distance (for example, greater than 45 cm) between the user and the image detection circuit 460. In this case, the control circuit 440 determines the normal distance between the user and the image detection circuit 460 as the second normal range.

[0037] In some embodiments, when a specific event occurs, it indicates that the user may be dozing off. Therefore, control circuitry 440 may gradually decrease the brightness of display screen 450. In this case, when the specific event has not been resolved, control circuitry 440 may request other circuits of electronic device 400 to enter sleep mode. However, when the specific event is resolved, control circuitry 440 restores the brightness of display screen 450.

[0038] When an element or layer is described as being "bonded" to another element or layer, it is understood that the element or layer can be directly bonded to the other element or layer, or that intervening elements or layers can be present. In contrast, when an element or layer is described as being "directly bonded" to another element or layer, it is understood that no intervening elements or layers are present.

[0039] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms defined in commonly used dictionaries should be interpreted as meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense unless explicitly defined herein. Terms such as "first," "second," and the like are used herein to describe various components, but these elements should not be construed as being limited by these terms. These terms are used only to distinguish one element from another. In the following claims, terms such as "first," "second," and the like are used merely as labels and do not impose numerical requirements on their objects.

[0040] While the present disclosure has been described by way of example and in terms of embodiments, it is to be understood that the disclosure is not limited to the disclosed embodiments. On the contrary, it is intended to cover various modifications and similar arrangements (as would be apparent to those skilled in the art). Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements. [Explanation of symbols]

[0041] 100, 400 electronic equipment 110 users 210, 410 keyboard 220, 420 key detection circuit 230, 430, 470 Processing circuit 240, 440 control circuit 250, 450 display screen 460 Image detection circuit 480 Distance detection circuit SW1 to SW6 keys S D1 ~S D3 Detection signal S P1 ~S P3 Processing Signal S N Reminder Signal R1~R6 resistor ND node C1 capacitor VCC, VSS power supply pins

Claims

1. A keyboard including a first key and a second key, A key detection circuit that detects the pressed state of the first key and the second key and generates a first detection signal, A first processing circuit that converts the first detection signal to generate a first processing signal, A control circuit that, in response to the first processing signal, determines whether the force applied to the first key is within a preset range, transmits a reminder signal if the force applied to the first key is not within the preset range, and does not transmit the reminder signal if the force applied to both the first and second keys is within the preset range. The system includes a display screen that displays a reminder image in response to the reminder signal, The aforementioned key detection circuit is A first resistor connected between the first power terminal and the node, A second resistor connected between the node and the second key, A capacitor connected between the node and the second power supply terminal, Includes, The first key is connected between the node and the second power terminal, and the second key is connected between the second resistor and the second power terminal. The first processing circuit is an analog-to-digital conversion circuit, and the analog-to-digital conversion circuit converts the voltage of the node to generate the first detection signal. An electronic device equipped with a fatigue detection function.

2. The electronic device equipped with a fatigue detection function according to claim 1, wherein the control circuit determines the frequency with which the first key is pressed in accordance with the first processing signal, and transmits the reminder signal when the frequency with which the first key is pressed does not satisfy a second predetermined condition.

3. The electronic device having a fatigue detection function according to claim 2, wherein the control circuit determines the time the first key is pressed down in response to the first processing signal, and when the time the first key is pressed down is longer than a first predetermined time, it transmits the reminder signal and then enters sleep mode.

4. An image detection circuit that detects the user's face and generates a second detection signal, and The system further includes a second processing circuit that processes the second detection signal via a first algorithm to generate a second processed signal. The control circuit determines whether to transmit the reminder signal in accordance with the first and second processing signals. The electronic device having a fatigue detection function according to claim 1, wherein the first algorithm is applied to analyze changes in the user's eyes, the user's mouth, or both.

5. The control circuit determines, in response to the second processing signal, the frequency at which the user blinks or the time the user's mouth is open exceeds a second predetermined time, The electronic device having a fatigue detection function according to claim 4, wherein the control circuit transmits the reminder signal when the frequency with which the user blinks their eyes does not fall within a first normal range, or when the frequency with which the user's mouth is open exceeds a second predetermined time increases.

6. The control circuit determines the frequency with which the first key is pressed in response to the first processing signal. The control circuit determines, in response to the second processing signal, the frequency at which the user blinks or the time the user's mouth is open exceeds a second predetermined time. The electronic device having a fatigue detection function according to claim 4, wherein the frequency at which the first key is pressed does not satisfy the second predetermined condition, and the frequency at which the user blinks their eyes does not fall within the first normal range, or the frequency at which the user's mouth is open exceeds the second predetermined time increases, the control circuit transmits the reminder signal.

7. The system further includes a distance detection circuit that detects whether an object is close to the display screen and generates a third detection signal. The second processing circuit processes the third detection signal via the second algorithm and generates a third processing signal. The control circuit determines whether to transmit the reminder signal according to the first, second, and third processing signals. The electronic device having a fatigue detection function according to claim 4, wherein the second algorithm is applied to analyze the distance between the object and the display screen.

8. The control circuit determines, in response to the second processing signal, the frequency at which the user blinks or the time the user's mouth is open exceeds a second predetermined time, The control circuit determines the distance between the object and the display screen in accordance with the third processing signal. The electronic device having a fatigue detection function according to claim 7, wherein the control circuit transmits the reminder signal when the frequency with which the user blinks does not fall within a first normal range, or when the frequency with which the user's mouth is open exceeds a second predetermined time increases, and the distance between the object and the display screen does not fall within a second normal range.

9. The control circuit determines the frequency with which the first key is pressed in response to the first processing signal. The control circuit determines, in response to the second processing signal, the frequency at which the user blinks or the time the user's mouth is open exceeds a second predetermined time. The control circuit determines the distance between the object and the display screen in accordance with the third processing signal. The electronic device having a fatigue detection function according to claim 7, wherein the frequency at which the first key is pressed does not satisfy the second predetermined condition, the frequency at which the user blinks their eyes does not fall within the first normal range, or the frequency at which the user's mouth is open exceeds the second predetermined time increases, and the distance between the object and the display screen does not fall within the second normal range, the control circuit transmits the reminder signal.

10. The electronic device equipped with a fatigue detection function according to claim 1, wherein when the force applied to the first key is not within the preset range, the control circuit reduces the brightness of the display screen, and when the force applied to the first key is within the preset range, the control circuit restores the brightness of the display screen to its original level.

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