CN112083785A - A control method and display device for automatically adjusting display state - Google Patents

Abstract

The invention discloses a control method for automatically adjusting a display state and display equipment, wherein the control method comprises the following steps: s1: powering on the equipment and entering a scanning program; s2: judging whether the equipment is in a dormant state, if so, entering step S3, otherwise, entering step S5; s3: executing a dormancy display strategy, and starting to record a first scanning frequency; s4: judging whether the first scanning times reach a first threshold value, if not, controlling all keys not to be lighted and continuing to execute the step S4; if yes, controlling the effective key to light, and returning to the step S2 after clearing the first scanning times; s5: executing a non-dormancy display strategy, and starting to record a second scanning frequency; s6: judging whether the second scanning times reach a second threshold value, if not, controlling the effective keys to be on or all the keys to be on and continuing to execute the step S6; if so, the control unit controls the active keys or all keys to be on, clears the second scanning times and returns to the step S2. The invention realizes the automatic change of the display state of the display screen, and is convenient for users to intuitively judge the equipment state.

Description

A control method and display device for automatically adjusting display state

technical field

The present invention relates to the technical field of device display screens, and in particular, to a control technology for adjusting a display state and a display device.

Background technique

There are usually two types of display solutions for existing equipment in the market: ① when the display is off, the display is all off; ② when the display is turned on, in standby, and running, the display is all on. However, these two methods have the following disadvantages:

1. The user cannot intuitively judge the working status of the device from a distance. All off may be unplugged or in hibernation, and all bright may be in standby or working;

2. The full brightness is particularly dazzling in the dark place (such as at night), which affects the user's rest;

3. The energy consumption is relatively high, which reduces the life of the display device.

SUMMARY OF THE INVENTION

The present invention aims to solve one of the problems existing in the related art at least to a certain extent. For this reason, the present invention proposes a control method for automatically adjusting the display state, which realizes the automatic change of the display state of the display screen according to the device state. This enables users to intuitively judge the device status from a distance, and can reduce energy consumption. The present invention also provides a display device applying the control method for automatically adjusting the display state.

According to a control method for automatically adjusting the display state provided above, it is realized by the following technical solutions:

A control method for automatically adjusting a display state, comprising the following steps:

S1: The device is powered on and enters the scanning procedure;

S2: determine whether the device is in a dormant state, if so, go to step S3, if not, go to step S5;

S3: Execute the sleep display strategy, and start recording the first scan times;

S4: determine whether the first scan times reach the first threshold, if otherwise, control all keys not to light up and continue to perform step S4; if so, control the effective keys to light up, and return to step S2 after clearing the first scan times;

S5: Execute the non-sleep display strategy, and start recording the second scan times;

S6: judge whether the second scan times reach the second threshold, if otherwise, control the effective key or all keys to be illuminated and continue to perform step S6; if so, control the effective key or all keys to be illuminated, and return to the step after clearing the second scan times S2.

In some embodiments, in step S4, the valid key is on, specifically, the valid key is slightly bright or half-bright.

In some embodiments, the sleep state includes a cold standby sleep state and a hot standby sleep state. When the device is in the cold standby sleep state, if the first scan times < the first threshold, all keys are controlled to be off, and if the first number of scans is less than the first threshold The number of scans = the first threshold, then the control effective key will be slightly bright or half-lit; when the device is in the hot standby sleep state, if the first number of scans < the first threshold, all keys will not be controlled, if the first number of scans = The first threshold value, the control effective key is slightly bright or half bright.

In some embodiments, in step S4, as described otherwise, control all keys to be off and continue to perform step S4, which specifically includes steps:

S41: if the number of first scans does not reach the first threshold, control all keys to be off;

S42: Determine whether the device is switched to a non-sleep state;

S43: if the device switches to a non-sleep state, clear the first scan times and enter step S5;

S44: If the device does not switch to the non-sleep state, continue to perform step S4 to determine whether the number of times of the first scan reaches the first threshold.

In some embodiments, in step S6, the valid keys are on, specifically, the valid keys are fully lit or half-lit; the all keys are lit, specifically, the valid keys in all the keys are fully lit or half-lit. Half-bright, invalid keys are half-bright or slightly bright.

In some embodiments, the non-sleep state includes a hot-standby non-sleep state and a cold-standby non-sleep state. When the device is in the hot-standby non-sleep state, if the second scan times < the second threshold, the valid keys are controlled to be in full state. On or half-lit, if the second scan times = the second threshold, the valid keys in all keys will be fully or half-lit, and the invalid keys will be half-lit or slightly bright; when the device is in a cold standby non-sleep state, if The second scan times < the second threshold, the control valid keys are fully lit or half-lit, and if the second scan times = the second threshold, the control valid keys are fully or half-lit.

In some other implementations, the non-sleep state includes a hot standby non-sleep state and a cold standby non-sleep state. When the device is in a hot standby non-sleep state, if the second scan times < the second threshold, control all keys in the non-sleep state. The valid keys are fully lit or half lit, and the invalid keys are half lit or slightly lit. If the second scan times = the second threshold, the control valid keys will be fully lit or half lit; when the device is in a cold standby non-sleep state, If the second scan times < the second threshold, the effective keys are controlled to be fully or half-lit, and if the second scan times = the second threshold, the control-effective keys are fully or semi-lit.

In some embodiments, in step S6, the control of the effective key or all keys to light up as otherwise described and continuing to perform step S6, specifically includes the steps:

S61: if the number of times of the second scan does not reach the second threshold, control the effective key to light up or all keys to light up;

S62: Determine whether the device is switched to the sleep state;

S63: if the device switches to the sleep state, clear the second scan times and enter step S3;

S64: If the device does not switch to the sleep state, continue to perform step S6 to determine whether the number of times of the second scan reaches the second threshold.

In some embodiments, the first threshold is greater than the second threshold.

According to a display device provided above, it is realized through the following technical solutions:

A display device applying the control method according to the claim, comprising a controller, a display screen and an indicator light driving circuit, the indicator light driving circuit comprising a switch unit and several indicator light units, and the switch unit is connected to the Between the indicator light unit and the power supply, and the control end of the switch unit is connected to the controller, the indicator light unit is arranged on the display screen and is connected to the controller, and the controller is used according to the working state of the equipment. The on-off state of the switch unit is controlled, so as to control the working state of the indicator light unit.

Compared with the prior art, the present invention at least includes the following beneficial effects:

A control method for automatically adjusting the display state of the present invention, by executing the sleep display strategy when the device is in the sleep state, and executing the non-sleep strategy when the device is in the non-sleep state, not only realizes the automatic change of the display screen according to the device state The display state also realizes changing the display brightness of the display screen according to the device state, which is more convenient for users to intuitively judge the device state from a distance, and at the same time can achieve the purpose of reducing energy consumption and prolonging the life of the display device.

Description of drawings

1 is a flowchart of a control method that can automatically adjust a display state in Embodiment 1 of the present invention;

Fig. 2 is the connection block diagram of the device controller in the embodiment 1 of the present invention;

3 is a state diagram of various states of the device in Embodiment 1 of the present invention;

Fig. 4 is the sub-flow chart of step S4 in Fig. 1;

Fig. 5 is the sub-flow chart of step S6 in Fig. 1;

6 is a circuit diagram of an indicator light driving circuit in Embodiment 1 of the present invention.

Detailed ways

The following examples illustrate the present invention, but the present invention is not limited by these examples. Modifications to the specific embodiments of the present invention or equivalent replacement of some technical features without departing from the spirit of the solution of the present invention shall all be included in the scope of the technical solution claimed in the present invention.

Example 1

1-2 , this embodiment provides a control method for automatically adjusting the display state. The device is provided with a controller 1 and a display screen 2 , and the controller 1 is connected to the display screen 2 . A device has two basic states: a sleep state and a non-sleep state. When the device is in the sleep state, the controller 1 automatically controls the display state of the display screen 2 according to the sleep display strategy; when the device is in the non-sleep state, the controller 1 automatically controls the display state of the display screen 2 according to the non-sleep display strategy. Thereby, it is ensured that the controller can automatically change the display state of the display screen 2 according to the device state, so that the user can intuitively judge the device state from a distance, and the user experience is improved.

In this embodiment, the control method includes the following steps:

S1: The device is powered on and enters the scanning procedure;

S2: determine whether the device is in a dormant state, if so, go to step S3, if not, go to step S5;

Specifically, the judging whether the device is in a dormant state, specifically, the controller 1 determines whether the state flag bit DMH of the device is 1, if so, it indicates that the device is in a dormant state and enters step S3; otherwise, it indicates that the device is in a non-dormant state and Go to step S5.

S3: Execute the sleep display strategy, and start recording the first scan times;

Specifically, the device is further provided with a counter 3 for recording the number of scans, and the counter 3 is connected to the controller 1 . When the controller 1 receives a signal that the device is in a sleep state, it sends a sleep display instruction to control the display 2 to execute the sleep display strategy, and at the same time controls the counter 3 to start recording the first scan times during display scan.

Preferably, the device is also provided with a timer 4 connected to the controller 1, and the timer 4 is used to record the timing display scanning time. In this way, the device adopts the timing scanning mode when performing display scanning. interrupts to reduce power consumption and extend the life of the display.

S4: determine whether the first scan times reach the first threshold, if otherwise, control all keys not to light up and continue to perform step S4; if so, control the effective keys to light up, and return to step S2 after clearing the first scan times;

Specifically, when the device executes the timing display scan, the controller 1 determines whether the first scan times of the timing display scan reach the first threshold, and if the first scan times < the first threshold, it controls all the keys of the display screen 2 to be off and continues to execute Step S4; if the first scan times = the first threshold, control the effective key of the display screen 2 to light up, and return to step S2 after clearing the first scan times.

Preferably, when the device executes the sleep display strategy, the valid keys are on, specifically, the valid keys are slightly bright or half-bright, so that when the device is not in use, it enters the sleep state, relative to the full brightness of the effective keys on the display screen In the display mode, the brightness of the effective keys of the display screen 2 of the present invention is reduced, which can not only reduce energy consumption, but also avoid affecting the daily life of the user, effectively solving the problem that the device is particularly dazzling in a dark place (such as at night) and affects the user's rest. .

S5: Execute the non-sleep display strategy, and start recording the second scan times;

Specifically, when the controller 1 receives a signal that the device is in a non-sleep state, it sends a non-sleep display instruction to control the display 2 to execute the non-sleep display strategy, and controls the counter 3 to start recording the second scan times during display scan. Preferably, when the device executes the non-sleep display strategy, the device adopts a timed scanning method, that is, when a display scan is entered, an interruption is entered, so as to further reduce energy consumption and prolong the service life of the display screen.

S6: judge whether the second scan times reach the second threshold, if otherwise, control the effective key or all keys to be illuminated and continue to perform step S6; if so, control the effective key or all keys to be illuminated, and return to the step after clearing the second scan times S2.

Specifically, the controller 1 continuously judges whether the second scan times of the timing display scan reaches the second threshold, and if the second scan times < the second threshold, it controls the effective keys of the display screen 2 or all the keys to be on, and continues to execute the steps S6; if the second scanning times=the second threshold, control the effective key or all keys of the display screen 2 to light up, and return to step S2 after clearing the second scanning times.

Preferably, the second threshold in this embodiment is smaller than the first threshold, so as to ensure that the display state of the display screen 2 is brighter and more frequent when the device is in the non-sleep display strategy, and saves more time when executing the sleep display strategy. Electricity. When the device is executing the non-sleep display strategy, the valid keys are on, specifically, the valid keys are fully or half-lit; the all keys are on, specifically, the valid keys in the all keys are fully or half-lit , the invalid keys are half-lit or slightly bright, so that when the device enters the non-sleep state, by controlling the valid keys of the display screen 2 to be fully or half-lit, and the invalid keys to be half-lit or slightly bright, it is convenient for the user to pass the display screen 2. Display brightness to know device status.

It can be seen from this that the control method for automatically adjusting the display state of the present embodiment implements a sleep display strategy when the device is in a sleep state, and executes a non-sleep strategy when the device is in a non-sleep state, so as to automatically adjust the display state according to the device. The state changes the display state of the display screen 2, so that the user can intuitively judge the device state from a distance.

In this embodiment, when the device executes the sleep display strategy, all the keys on the display screen 2 are off before the first scan times reach the first threshold, and the valid keys on the display screen 2 when the first scan times reach the first threshold It is slightly bright or half bright; when the non-sleep display strategy is implemented, the valid keys of the display screen 2 are fully bright or half bright before the second scan times reach the second threshold, and when the second scan times reach the second threshold, The valid keys of the display screen 2 are fully bright or half bright, and the invalid keys are half bright or slightly bright, so that the display brightness of the display screen 2 can be changed according to the device status, which is more convenient for the user to intuitively judge the device status from a distance. The purpose of reducing energy consumption and prolonging the life of the display device is achieved, which effectively avoids the device appearing particularly dazzling in a dark place (such as at night) and affecting the rest of the user.

Referring to FIG. 3 , specifically, the sleep state includes a cold standby sleep state and a hot standby sleep state, and the non-sleep state includes a cold standby non-sleep state and a hot standby non-sleep state. After the device is powered on, it will directly enter the cold standby non-sleep state, click the start button to start the device and switch to the hot standby non-sleep state; touch other keys, no action, only maintain the cold standby non-sleep state; do not operate for a long time, switch to Cold standby hibernation state.

When the device is in the cold standby sleep state, touch any key to switch to the cold standby non-sleep state.

When the device is in the hot standby non-sleep state, click the start button to switch to the cold standby non-sleep state; if it is not operated for a long time, it will switch to the hot standby and sleep state.

When the device is in the hot standby hibernation state, touch the device, or click any button other than the power button, or when a start signal is detected to trigger a working condition, it can switch to the hot standby non-sleep state.

Preferably, in step S4, when the device is in a cold standby hibernation state, if the first scan times < the first threshold, all keys are controlled not to light up, so as to reduce energy consumption and prolong the service life of the display screen 2 of the device; When the number of scans = the first threshold, the control effective key is slightly bright or half bright, and the effective key is the power key at this time. When the device is in the hot standby sleep state, if the first scan times < the first threshold, all keys will be controlled to be off to reduce energy consumption; if the first scan times = the first threshold, the control effective keys will be dimly lit or half-lit , and the valid keys are the power key and other valid keys. It can be seen that when the first scan times = the first threshold, the control power key is slightly bright or half bright when the device is in the cold standby sleep state, and the control power key and other valid keys are slightly bright or half bright when the device is in the hot standby sleep state. Half-bright, it is more convenient for users to distinguish whether the device is in a cold standby hibernation state or a hot standby hibernation state. While reducing energy consumption, it ensures that the device enters the hibernation state, and the brightness of the display screen 2 decreases, which does not affect the user's daily life.

More preferably, when the device of this embodiment is in a cold standby hibernation state, and the first number of scans = the first threshold, the control effective key (ie, the power key) is slightly bright. When the device is in a hot standby hibernation state, and the first number of scans = the first threshold, the control valid keys (ie, the power key and other valid keys) are dimly lit. In this way, the display brightness of the display screen 2 of the device in the sleep state is guaranteed to be the lowest, energy consumption is reduced, and the daily life of the user is not affected at the same time.

Referring to Fig. 4, further, in step S4, if otherwise, control all keys to be off and continue to perform step S4, which specifically includes steps:

S41: if the number of first scans does not reach the first threshold, control all keys to be off;

S42: Determine whether the device is switched to a non-sleep state;

Specifically, to determine whether the device is switched to a non-sleep state, the controller 1 determines whether a switching signal is received, and the switching signal at least includes a status flag bit DMH, wherein when the status flag bit DMH is 1, it indicates that the device needs to switch to Sleep state; and when the state flag bit DMH is not 1, it indicates that the device needs to switch to a non-sleep state.

S43: if the device switches to a non-sleep state, clear the first scan times and enter step S5;

Specifically, if the controller 1 determines that the status flag bit DMH is not 1, it indicates that the device switches to a non-sleep state, and at this time, the first scan times are cleared and step S5 is entered.

S44: If the device does not switch to the non-sleep state, continue to perform step S4 to determine whether the number of times of the first scan reaches the first threshold.

Specifically, if the controller 1 determines that the status flag bit DMH is 1, it means that the device does not switch to a non-sleep state, and the device is still in a dormant state at this time, and then the next display scan is interrupted once, until the first scan The number of times reaches the first threshold.

Preferably, in step S6, when the device is in a hot standby non-sleep state, if the second scan times < the second threshold, the effective keys are controlled to be fully lit or half lit, and the effective keys are the power key and other Valid keys; if the second scan times = the second threshold, the valid keys in all keys are controlled to be fully bright or half bright, and the invalid keys are half bright or slightly bright, and the valid keys are the power key and other valid keys. . When the device is in a cold standby and non-sleep state, if the second scan times < the second threshold, the effective key is controlled to be fully lit or half-lit, and the effective key is the power button; if the second scan times = the second threshold , the control effective key is fully lit or half lit, and the effective key is the power key at this time. It can be seen from this that when the second scan times = the second threshold, when the device is in the cold standby non-sleep state, the control power key is fully lit or half-lit, while the control power key and other valid keys are fully lit when the device is in the hot standby non-sleep state. Or half-bright, the invalid key is half-bright or slightly bright, which realizes the intuitive display of the two non-sleep states of the device, which is more convenient for users to distinguish whether the device is in a cold standby non-sleep state or a hot standby non-sleep state.

More preferably, the device in this embodiment is in a cold standby non-sleep state, the control valid key (ie the power key) is fully lit when the second scan times < the second threshold, and the control valid key (ie the power key) is in the second The number of scans = the second threshold is fully bright. When the device is in the hot standby and non-sleep state, the control valid keys (ie the power key and other valid keys) are fully lit when the second scan times < the second threshold, and the control valid keys (ie the power key and other valid keys) are on the first When the number of scans = the second threshold, it is fully lit, and the invalid key is half-lit when the number of scans = the second threshold. In this way, through different display states and display brightness, the user can also intuitively judge from a distance. device status, and at the same time can achieve the purpose of saving power.

Referring to FIG. 5, further, in step S6, the control of the effective key or all keys to light up as otherwise described and continuing to perform step S6, specifically includes the steps:

S61: if the number of times of the second scan does not reach the second threshold, control the effective key to light up or all keys to light up;

S62: Determine whether the device is switched to the sleep state;

Specifically, to determine whether the device switches to the dormant state, the controller 1 determines whether a switching signal is received, and the switching signal at least includes the status flag bit DMH, wherein when the status flag bit DMH is 1, it indicates that the device needs to switch to the dormant state state; and when the state flag bit DMH is not 1, it indicates that the device needs to switch to a non-sleep state.

S63: if the device switches to the sleep state, clear the second scan times and enter step S3;

Specifically, if the controller 1 determines that the state flag bit DMH is 1, it means that the device switches to the sleep state, and at this time, the second scan times are cleared and the process goes to step S3.

S64: If the device does not switch to the sleep state, continue to perform step S6 to determine whether the number of times of the second scan reaches the second threshold.

Specifically, if the controller 1 determines that the status flag bit DMH is not 1, it means that the device does not switch to the dormant state, and the device is still in the non-dormant state at this time, and then the next time the display scan is interrupted once, until the second The number of scans reaches the second threshold.

To sum up, when the device is in the cold standby non-sleep state, the device is powered on, and the device is turned off and does not work. Correspondingly, the display state of the display screen 2 is generally as follows: only the valid keys are all on, and the valid key is the power key at this time.

When the device is in the cold standby hibernation state, the device is powered on and not working when it is turned off. Correspondingly, the display state of the display screen 2 is generally as follows: only the valid key is slightly bright, and the valid key is the power key at this time.

When the device is in the hot standby and non-sleep state, the device is powered on, ready to start up, or in working state. Correspondingly, the display state of the display screen 2 is generally as follows: the valid keys are all on, the invalid keys are half-lighted, at this time Valid keys are the power key and other valid keys.

When the device is in the hot standby hibernation state, the device is powered on and not working. Correspondingly, the display state of the display screen 2 is generally as follows: the valid keys are slightly bright, and the valid keys are the power key and other valid keys.

The source code of this embodiment is as follows:

Referring to FIG. 6 , the present embodiment also provides a display device, which applies the above-mentioned control method for automatically adjusting the display state. The display device includes a controller 1, a display screen 2 and an indicator light driving circuit (in the figure Not shown), the indicator light driving circuit is connected to the controller 1 and the display screen 2 respectively. Specifically, the indicator light drive circuit includes a switch unit and several indicator light units. The switch unit is connected between the indicator light unit and the power supply, and the control end of the switch unit is connected to the controller 1. The indicator light unit is arranged on the display screen 2 and connected to Controller 1, the controller 1 is used to control the on-off state of the switch unit according to the working state of the equipment, thereby realizing the control of the working state of the indicator light unit. Therefore, by controlling the on-off state of the switch unit according to the working state of the device, the working state of the indicator light unit can be controlled, so that the user can intuitively judge the state of the device from a distance and improve the user experience.

The switch unit in the indicator light driving circuit in this embodiment is implemented by a MOS transistor, and can also be implemented by an electronic component with a switch control function such as a triode. The number of indicator light units is seven, and the controller 1 has a total control terminal COM8, and seven indicator light control bits COM[1 _... 7] corresponding to the indicator light units. This embodiment is described by taking a P-type MOS transistor as an example for the MOS transistor Q2, wherein the gate electrode of the MOS transistor Q2 is connected to the general control terminal COM8 of the controller 1, and the source electrode is connected to the power supply. Each indicator unit includes a light-emitting diode and a voltage divider resistor. The anode of the light-emitting diode is connected to the drain of the MOS transistor Q2, and the cathode is connected to the corresponding indicator light control bit COM[1...7] of the controller 1 through the voltage divider resistor, so that , The voltage divider can prevent the light-emitting diode from being burned out by high voltage, and improve the service life of the light-emitting diode. When the effective lamp needs to be lit, firstly, COM1~COM7 need to be lit to low level. After the assignment is completed, when the total control terminal COM8 of controller 1 is set to low level, the MOS tube Q2 is turned on, and the effective lamp is lit, thus Make the valid key light up.

Preferably, the indicator light driving circuit further includes a resistor R51, and the gate of the MOS transistor Q2 is connected to the general control terminal COM8 of the controller 1 through the resistor R51. In this way, the setting of the resistor R51 acts as a voltage divider to prevent excessive voltage Impact the MOS tube to burn out the MOS tube.

Example 2

The difference between this embodiment and Embodiment 1 is that the display brightness of the device in a non-sleep state is different. Specifically, when the device is in a cold standby non-sleep state, the control effective key (ie, the power key) is half-lit before the second scan times reaches the second threshold, and is half-lit when the second threshold is reached. When the device is in a hot standby non-sleep state, the control valid keys (ie, the power key and other valid keys) are always on half-light, and the invalid keys are slightly bright when the second scan times = the second threshold.

It can be seen that the control method for automatically adjusting the display state of the present implementation makes the brightness of the device in the non-sleep state lower and the power saving effect is better, ensuring that the brightness of the device does not affect the daily life of the user.

Example 3

The difference between this embodiment and Embodiment 1 is that the display state of the device is different when the device is in hot standby and not in sleep mode. Specifically, when the device is in the hot standby non-sleep state, if the second scan times < the second threshold, the valid keys in all keys are controlled to be fully lit or half-lit, and the invalid keys are half-lit or slightly lit. The number of scans = the second threshold, then the control effective key is fully or half-lit.

More specifically, when the device is in a hot standby non-sleep state, if the second scan times=the second threshold, the effective keys are controlled to be fully lit or half-lit, and the valid keys are the power key and other valid keys; if The second scan time < the second threshold value, the valid keys in all keys are controlled to be fully lit or half-lit, and the invalid keys are half-lit or slightly lit. At this time, the valid keys are the power key and other valid keys.

Preferably, the device in this embodiment is in a hot standby non-sleep state, the control valid keys (ie the power key and other valid keys) are fully lit when the second scan times = the second threshold, and the control valid keys (ie the power key and the other valid keys) are fully lit. The other valid keys) are fully lit when the second scan times < the second threshold, and the invalid keys are half-lit when the second scan times < the second threshold. Other parts are the same as in Example 1.

It can be seen that by controlling the valid keys in all keys to be fully lit and the invalid keys to be half-lit when the second scan times < the second threshold, the number of times the invalid keys are lit is lower, and the invalid keys are prevented from failing if they do not work for a long time. .

The foregoing are merely some of the embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, several modifications and improvements can be made, which all belong to the protection scope of the present invention.

Claims (10)

1. A control method for automatically adjusting display state is characterized by comprising the following steps:

s1: powering on the equipment and entering a scanning program;

s2: judging whether the equipment is in a dormant state, if so, entering step S3, otherwise, entering step S5;

s3: executing a dormancy display strategy, and starting to record a first scanning frequency;

s4: judging whether the first scanning times reach a first threshold value, if not, controlling all keys not to be lighted and continuing to execute the step S4; if yes, controlling the effective key to light, and returning to the step S2 after clearing the first scanning times;

s5: executing a non-dormancy display strategy, and starting to record a second scanning frequency;

s6: judging whether the second scanning times reach a second threshold value, if not, controlling the effective keys to be on or all the keys to be on and continuing to execute the step S6; if so, the control unit controls the active keys or all keys to be on, clears the second scanning times and returns to the step S2.

2. The control method according to claim 1, wherein in step S4, the active key is bright, specifically, the active key is slightly bright or semi-bright.

3. The control method for automatically adjusting the display state according to claim 1 or 2, wherein the sleep states include a cold standby sleep state and a hot standby sleep state, when the device is in the cold standby sleep state, if the first scanning time is less than a first threshold, all the keys are controlled not to be lighted, and if the first scanning time is equal to the first threshold, the active keys are controlled to be slightly or semi-lighted;

when the equipment is in a hot standby dormant state, if the first scanning times is less than a first threshold value, all the keys are controlled not to be lighted, and if the first scanning times is equal to the first threshold value, the effective keys are controlled to be slightly bright or semi-bright.

4. The method as claimed in claim 1, wherein in step S4, if otherwise, all the keys are controlled not to be lit and the method continues to perform step S4, specifically comprising the steps of:

s41: if the first scanning times do not reach the first threshold value, controlling all keys not to be lighted;

s42: judging whether the equipment is switched to a non-sleep state or not;

s43: if the device is switched to the non-sleep state, clearing the first scanning times and entering the step S5;

s44: if the device does not switch to the non-sleep state, the process continues to determine whether the first scanning times reaches the first threshold in step S4.

5. The control method according to claim 1, wherein in step S6, the active key is bright, specifically, the active key is fully bright or half bright; and the all keys are bright, specifically, the effective keys in all the keys are full bright or half bright, and the ineffective keys are half bright or slightly bright.

6. The control method for automatically adjusting the display state according to claim 1 or 5, wherein the non-sleep state comprises a hot standby non-sleep state and a cold standby non-sleep state, when the device is in the hot standby non-sleep state, if the second scanning time is less than a second threshold, the active keys are controlled to be fully bright or half bright, and if the second scanning time is equal to the second threshold, the active keys in all the keys are controlled to be fully bright or half bright, and the inactive keys are controlled to be half bright or slightly bright;

when the equipment is in a cold standby non-dormant state, if the second scanning times is less than a second threshold value, the effective key is controlled to be fully bright or semi-bright, and if the second scanning times is equal to the second threshold value, the effective key is controlled to be fully bright or semi-bright.

7. The control method for automatically adjusting the display state according to claim 1 or 5, wherein the non-sleep state comprises a hot standby non-sleep state and a cold standby non-sleep state, when the device is in the hot standby non-sleep state, if the second scanning time is less than a second threshold value, the active keys in all the keys are controlled to be fully bright or semi bright, and the inactive keys are controlled to be semi bright or slightly bright, and if the second scanning time is equal to the second threshold value, the active keys are controlled to be fully bright or semi bright;

when the equipment is in a cold standby non-dormant state, if the second scanning times is less than a second threshold value, the effective key is controlled to be fully bright or semi-bright, and if the second scanning times is equal to the second threshold value, the effective key is controlled to be fully bright or semi-bright.

8. The method as claimed in claim 1, wherein in step S6, if it is not the case, controlling the active key to be on or all keys to be on and continuing to execute step S6, specifically comprising the steps of:

s61: if the second scanning times do not reach the second threshold value, controlling the effective keys to be on or controlling all keys to be on;

s62: judging whether the equipment is switched to a dormant state or not;

s63: if the device switches to the sleep state, clearing the second scanning times and proceeding to step S3;

s64: if the device does not switch to the sleep state, the process continues to determine whether the second scanning number reaches the second threshold in step S6.

9. The control method for automatically adjusting a display state according to claim 1, wherein the first threshold is greater than the second threshold.

10. A display device applying the control method according to any one of claims 1 to 9, comprising a controller (1), a display screen (2) and an indicator light driving circuit, wherein the indicator light driving circuit comprises a switch unit and a plurality of indicator light units, the switch unit is connected between the indicator light units and a power supply, a control end of the switch unit is connected with the controller (1), the indicator light units are arranged on the display screen (2) and connected with the controller (1), and the controller (1) is used for controlling the on-off state of the switch unit according to the working state of the device, so as to control the working state of the indicator light units.

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