CN101169929A - Method for controlling power supply and display parameter of display and display - Google Patents

Abstract

When a host system is normally started, the power supply of the display is controlled or the display parameters of the display are changed by utilizing the on-time of a switch in the display. When the switch on time exceeds a default value, a control unit of the display sets the display to enter an off state or a power-saving state, and when the switch on time is shorter than the default value, the control unit sets the display to control the display to display video signals received from the host system according to different display parameters.

Description

Method for controlling power supply and display parameters of a display and display

technical field

The invention relates to a display method and a display, in particular to a method for controlling a display power supply and display parameters and the display.

Background technique

During the development of display technology, displays supporting a display data channel/command interface (DDC/CI) function in a display data channel are becoming more and more popular. Different from ordinary monitors that need to set the display parameters of the monitor through the buttons of the monitor, the DDC/CI function allows the user to directly set the display parameters of the monitor through the application program on the host side, and apply them to the monitor, while the setting of the display parameters The process and setting results are displayed on the display. Therefore, the current monitors that support the DDC/CI function do not need to set several buttons like traditional monitors, or only need to keep the power button for controlling the power of the monitor.

For monitors that are known to support DDC/CI functions, except for the power button that controls the power of the monitor, all display parameter adjustments can be done on the host side through the application program. Although this can omit the button setting of the display, setting and applying display parameters can still be performed under the condition that the display can display information normally. Once the display is abnormal, such as the screen is too bright or too dark, the contrast is too high or too low, so that the readability of the information displayed on the display is reduced, or even the picture cannot be displayed normally, it will cause problems that cannot be solved by adjusting the display parameters through the application Displays unusual issues.

On the other hand, for most users, it is a convenient method on known displays to quickly switch between different display default values on the display to meet the needs of different usage environments. But for a display that supports DDC/CI function with only one power button, the above-mentioned convenience will be sacrificed, and it will be more complicated and inconvenient to achieve the purpose of switching different display default values through application operations.

Contents of the invention

The present invention provides a method for controlling the power supply and display parameters of a display. The display can be selectively set or departed from a normal working state, and the display has a switch. The display also stores a first display parameter and a second display parameter. , the method includes setting the display in the normal working state, so that the display displays a signal according to the first display parameter; when it is detected that a switch is turned on, and the turn-on time of the switch does not exceed a default value, the The monitor displays the signal according to the second display parameter; and when it is detected that the switch is turned on and the switch's conduction time exceeds the default value, the monitor breaks away from the normal working state.

The present invention also provides a method for controlling the power supply and display parameters of a display, the display can be selectively set or departed from a normal working state, and the display has a switch, and the display stores a first display parameter and an adjustment value, The method includes setting the display in the normal working state, so that the display displays a signal according to the first display parameter; when a switch is detected to be turned on, and the turn-on time of the switch does not exceed a default value, the display updating the first display parameter according to the first display parameter plus the adjustment value, and displaying the signal according to the updated first display parameter; and when it is detected that the switch is turned on, and the switch is turned on for more than When the default value is set, the display is out of the normal working state.

The present invention also provides a display, which can be selectively set in or out of a normal working state. The display includes a storage device storing a first display parameter and a second display parameter. In the normal working state, The display can selectively display a picture according to the first display parameter or the second display parameter; a switch can be selectively turned on; and a control unit, electrically coupled to the switch, is used to detect the Whether the switch is turned on; Wherein when the control unit detects that the switch is turned on, and the turn-on time of the switch is shorter than a default value, the control unit controls the display to display the picture according to the first display parameter ", change to "display the picture according to the second display parameter" and when the control unit detects that the switch is turned on, and when the turn-on time of the switch exceeds the default value, the control unit controls the display to break away from the normal working status.

The present invention also provides a display, the display can be selectively set in or out of a normal working state, the display includes a storage device storing a first display parameter and an adjustment value, the first display parameter and the adjustment value After calculation, an updated display parameter can be obtained. When the display is in the normal working state, it can selectively display a picture according to the first display parameter or the updated display parameter; a switch can be selectively turned on and a control unit electrically coupled to the switch for detecting whether the switch is turned on; wherein when the control unit detects that the switch is turned on and the turn-on time of the switch is shorter than a default value, The control unit controls the display from "displaying the picture according to the first display parameter" to "displaying the picture according to the updated display parameter" and when the control unit detects that the switch is turned on, and the switch is turned on When the on-time exceeds the default value, the control unit controls the display to break away from the normal working state.

Description of drawings

FIG. 1 is a schematic diagram of a display capable of controlling power supply and display parameters of a display.

FIG. 2 is a flowchart of an embodiment of a method for controlling display power and display parameters.

FIG. 3 is a flow chart of controlling the power of the display when the display is not turned on.

Description of reference symbols

10 Display 30 Switches

40 control unit 50 storage device

60 transmission channels 100 host systems

S100～S290 steps

Detailed ways

FIG. 1 is a schematic diagram of an embodiment of a display 10 that can control power supply and display parameters provided by the present invention. The display 10 includes a switch 30 , a control unit 40 and a storage device 50 . The display 10 is also connected to a host system 100 through a transmission channel 60 , and receives voltage signals and video signals transmitted from the host system 100 . When the host system 100 is in the power-on state, the host system 100 sends a PC5V voltage signal to the display 10 through the transmission channel 60, and the control unit 40 of the display 10 judges that the host system 100 is in the power-on state according to the detected PC5V voltage signal.

When the control unit 40 is in the state of detecting the PC5V voltage signal, the control unit 40 can control the display 10 to selectively set or leave a normal working state, or “power on state (poweron)”. When the display 10 is turned on, the control unit 40 can control the display 10 to display the video signal transmitted from the host system 100 according to the display parameters stored in the storage device 50, wherein the display parameters are parameters that can adjust the appearance of the screen, such as brightness ( brightness), contrast (contrast), horizontal size (H-size), horizontal position (H-position), vertical size (V-size), vertical position (V-position), trapezoid (trapezoid), pin cushion type ( pin-cushion)... and other parameters. And when the display 10 is out of the "on state", the display 10 does not display the video signal and is in the "power saving state (standby)": the control unit 40 supplies a small amount of power but does not display the picture, or "off state (power off)" : The control unit 40 does not supply power to the display 10 . In addition, the switch 30 is disposed on the display 10 in the form of a button and is electrically coupled to the control unit 40 . The control unit 40 can also control the display 10 to display the video signal received from the host system 100 according to different display parameters stored in the storage device 50 according to the on state of the switch 30 .

Therefore, the present invention achieves the purpose of controlling the display 10 to display video signals according to different display parameters or controlling the display 10 to be turned on or off or to save power by a single key according to the different conduction states of the switch 30 . Fig. 2 is a flow chart of a first embodiment of the method for controlling the power supply of the display 10 and display parameters. ) to change the brightness of the display 10, or turn off the display 10 when the conduction switch 30 exceeds the default value, the steps are as follows:

Step S100: turn on the switch 30 when the host system 100 is turned on;

Step S120: the control unit 40 sets the display 10 to be on and displays the video signal received from the host system 100 according to a display parameter;

Step S140: Detect whether the switch 30 is turned on; if the switch 30 is turned on, execute step S160; if the switch 30 is not turned on, execute step S120;

Step S160: Detect whether the conduction time of the switch 30 exceeds the default value; if the conduction time exceeds the default value, execute step S190;

Step S180: change the brightness value of the display 10, and execute step S120;

Step S190: the control unit 40 sets the display 10 to enter the off state.

As mentioned above, when the host system 100 is turned on, the conduction switch 30 (its conduction time may not be limited) can turn on the display 10, so that the display 10 displays the video signal received from the host system 100 (steps S100, S120), at this time The display 10 displays video signals according to a display parameter, which may be a display parameter stored in the storage device 50 or a display parameter transmitted from the host system 100 (and stored in the storage device 50 ) when the display 10 is turned on. Then, when the host system 100 and the display 10 are both turned on, when the switch 30 is pressed for more than a time (that is, the conduction time of the switch 30 exceeds the default value), the control unit 40 will turn off the display 10 or set the display 10 to enter "save "power state", for the user, at this time the switch 30 (in the embodiment disclosed in the present invention is a key set on the display 10 ) is to perform the function of controlling the power of the display 10 . And when the switch 30 is pressed for less than a time (that is, the conduction time of the switch 30 is shorter than the default value), the control unit 40 will change the display parameters of the display 10 to output video signals, in this embodiment, the display parameters are changed. luminance value, so that the display 10 outputs video signals with display parameters having different luminances (step S180 ). For the user, the switch 30 performs the function of changing the luminance of the display 10 at this time.

In addition, the storage device 50 can store multiple sets of display parameters with different brightness in advance, and in step S180 of the display method disclosed in the present invention, under the condition that the switch 30 conduction time is shorter than the default value, when the switch 30 conduction Once, the control unit 40 will set the display 10 to display video signals according to one set of display parameters stored in the storage device 50 in sequence. For example, four sets of display parameters with different brightnesses are stored in the storage device 50, which can be respectively set as the most suitable brightness setting for the four purposes of "word processing", "games", "watching movies" and "surfing the Internet". Each time the switch 30 is turned on, the control unit 40 controls the display 10 to display the video signal according to one of the above four groups of display parameters with different brightness in sequence, and displays the video signal on the display 10 according to the last group of display parameters (online) In the state, when the switch 30 is turned on again, the display method provided by the present invention can be cyclically switched, and the first set of display parameters (word processing) is used to control the display 10 to display video signals again.

In a second embodiment of the present invention, the control unit 40 also changes the display parameters of the display 10 when the on-time of the switch 30 is shorter than the default value as described in the first embodiment. The difference from the first embodiment is that The control unit 40 of the second embodiment is to change the display parameters of the display 10 based on displaying the video signal by adding a brightness adjustment value to a preset display parameter, wherein the default display parameter and the adjustment value are stored in storage device 50. For example, the storage device 50 stores the brightness value of 40 in the preset display parameters used to display the video signal, and the adjustment value is 20. When the switch 30 is pressed for the first time and the conduction time is shorter than the default value, the control The unit 40 will control the display 10 to display video signals with a display parameter with a brightness value of 60; The display parameters of 80 display the video signal, so turning on the switch 30 can increase the brightness value of the display 10 sequentially.

And when the brightness value of the display 10 increases to the maximum brightness value (for example: 100) that the display 10 can display, when the switch 30 is pressed again and the conduction time is shorter than the default value, the second embodiment can also cycle Change the display 10 in the way of switching: change the brightness value in the display parameter from the maximum brightness value to 100 and gradually decrease the adjustment value by 20 (100->80->60..), or return the brightness value to 40 and then increase the adjustment value successively. Adjust the value (40->60->80..) to display the video signal.

The aforementioned first and second embodiments are described by changing the brightness of the display 10, but the display method disclosed in the present invention can also be set to turn on the switch 30 (under the condition that the on time is shorter than the default value) To change the contrast of the display 10 or other display parameters (such as hue, sharpness, etc.). In addition, in step S120, when the display 10 is displaying video signals according to a display parameter (the premise is that the control unit 40 can detect the PC5V voltage signal from the host system 100 to determine that the host system 100 is in the power-on state, step S140 ), if the control unit 40 can no longer detect the PC5V voltage signal from the host system 100, the control unit 40 will further set the state of the display 10 according to whether the switch 30 is on or not: that is, when the switch 30 is on, the control The unit 40 sets the display 10 to enter the "off state"; if the switch 30 is not turned on, the control unit 40 sets the display 10 to enter the "power saving state".

The process flow of the method disclosed in FIG. 2 above is a display method of the display 10 when the host system 100 is turned on. Please refer to FIG. 3 . When the host system 100 is not turned on, FIG. 3 further illustrates the control unit 40 controls the display 10 according to different conduction states of the switch 30 when the display 10 is not turned on. Steps as shown in Figure 3:

Step S200: Detect whether the host system 100 is turned on; if the host system 100 is not turned on, execute step S240;

Step S220: Detect whether the switch 30 is turned on (the conduction time may not be limited); if the switch 30 is turned on, execute step S120; if the switch 30 is not turned on, execute step S260;

Step S240: Detect whether the switch 30 is turned on (the conduction time may not be limited); if the switch 30 is turned on, execute step S280;

Step S260: without turning on the power of the display 10, execute step S290;

Step S280: the control unit 40 sets the display 10 to enter the power saving state;

Step S290: end.

The method disclosed in the present invention is to control the power supply of the display or change the display parameters of the display by using the conduction time of a switch in the display when a host system is in a normal boot state. When the conduction time of the switch exceeds a default value, a control unit of the display sets the display to enter an off state or a power saving state; when the conduction time of the switch is shorter than the default value, the control unit sets the display according to different The Display parameter for displays the video signal received from the host system. The display method and display disclosed in the present invention can be effectively aimed at the current display using DDC/CI technology. When the display parameter is abnormal so that the display cannot display the picture normally to correct the display parameter, the display parameter can be quickly adjusted through a single button on the display. , to solve the problem of abnormal display on the display, and also provide the convenience for the user to quickly switch between different display modes on the display with only one power button.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the present invention.

Claims (28)

1. A method for controlling the power supply and display parameters of a display, the display can be selectively set in or out of a normal working state, and the display has a switch, and the display stores a first display parameter and a second display parameter , containing the steps: setting the display in the normal working state, so that the display displays a signal according to the first display parameter; When it is detected that a switch is turned on, and the turn-on time of the switch does not exceed a default value, the display shows the signal according to the second display parameter; and When it is detected that the switch is turned on, and the turn-on time of the switch exceeds the default value, the display is out of the normal working state. 2. The method as claimed in claim 1, wherein changing the display parameter of the display is changing the brightness of the display when the display displays the signal according to the second display parameter and when the display displays the signal according to the first display parameter Signals have different brightness. 3. The method of claim 1, wherein changing the display parameter of the display is changing the contrast of the display when the display displays the signal according to the second display parameter and when the display displays the signal according to the first display parameter. Signals have different contrast ratios. 4. The method of claim 1, further comprising the steps of: the display displays the signal according to the second display parameter; and When it is detected that the switch is turned on and the turn-on time of the switch does not exceed the default value, the display will display the signal according to the first display parameter, so changing the display parameter of the display is to change the display in a cyclic switching manner display parameters. 5. The method as claimed in claim 1, wherein the display can detect whether a host system is turned on, and the display can be selectively set to one of an off state, a power saving state and the normal working state, the method It also includes the step of: when the display is in the off state, when it is detected that the host system is not turned on and the switch is turned on, setting the display to enter the power saving state. 6. The method as claimed in claim 1, wherein the display can detect whether a host system is turned on, and the display can be selectively set to one of an off state, a power saving state and the normal working state, the method It also includes the step of setting the display to enter the normal working state when it is detected that the host system is turned on and the switch is turned on when the display is in the off or power-saving state. 7. The method as claimed in claim 1, wherein the display can detect whether a host system is turned on, and the display can be selectively set to one of an off state, a power saving state and the normal working state, the method It also includes the step of: when the display is in the normal working state, when it is detected that the host system is turned on and the switch is turned on for longer than the default value, setting the display to enter the off state. 8. A method for controlling the power supply and display parameters of a display, the display can be selectively set in or out of a normal working state, and the display has a switch, and the display stores a first display parameter and an adjustment value, including step: setting the display in the normal working state, so that the display displays a signal according to the first display parameter; When it is detected that a switch is turned on, and the turn-on time of the switch does not exceed a default value, the displayer updates the first display parameter according to the first display parameter plus the adjustment value, and according to the updated first display parameter a display parameter to display the signal; and When it is detected that the switch is turned on, and the turn-on time of the switch exceeds the default value, the display is out of the normal working state. 9. The method of claim 8, wherein updating the first display parameter according to the first display parameter plus the adjustment value is updating brightness of the display. 10. The method of claim 8, wherein updating the first display parameter according to the first display parameter plus the adjustment value is updating the contrast of the display. 11. The method of claim 8, further comprising the step of: the display displays the signal according to the updated first display parameter; and When it is detected that the switch is turned on and the turn-on time of the switch does not exceed the default value, the display will display the signal according to the updated first display parameter plus the adjustment value, so changing the display parameter of the display is Change the display parameters of the display in a cyclic switching manner. 12. The method as claimed in claim 8, wherein the display can detect whether a host system is turned on, and the display can be selectively set to one of an off state, a power saving state and the normal working state, the method It also includes the step of: when the display is in the off state, when it is detected that the host system is not turned on and the switch is turned on, setting the display to enter the power saving state. 13. The method as claimed in claim 8, wherein the display can detect whether a host system is turned on, and the display can be selectively set to one of an off state, a power saving state and the normal working state, the method It also includes the step of setting the display to enter the normal working state when it is detected that the host system is turned on and the switch is turned on when the display is in the off or power-saving state. 14. The method as claimed in claim 9, wherein the display can detect whether a host system is turned on, and the display can be selectively set to one of an off state, a power saving state and the normal working state, the method It also includes the step of: when the display is in the normal working state, when it is detected that the host system is turned on and the switch is turned on for longer than the default value, setting the display to enter the off state. 15. A display that can be selectively placed in or out of a normal operating state, the display comprising: A storage device, storing a first display parameter and a second display parameter, in the normal working state, the display can selectively display a picture according to the first display parameter or the second display parameter; a switch that can be selectively turned on; and a control unit, electrically coupled to the switch, for detecting whether the switch is turned on; Wherein when the control unit detects that the switch is turned on, and the turn-on time of the switch is shorter than a default value, the control unit controls the display from "displaying the picture according to the first display parameter" to "displaying the picture according to the first display parameter". The second display parameter displays the screen "and when the control unit detects that the switch is turned on and the switch's turn-on time exceeds the default value, the control unit controls the display to break away from the normal working state. 16. The display according to claim 15, wherein the control unit is used to change the brightness of the display when the on-time of the switch is shorter than the default value, and when the display displays the picture according to the second display parameter and when the monitor displays the image according to the first display parameter, it has different brightness. 17. The display as claimed in claim 15, wherein the control unit is used to change the contrast of the display when the on-time of the switch is shorter than the default value, when the display displays the picture according to the second display parameter and when the monitor displays the image according to the first display parameter, it has a different contrast ratio. 18. The display as claimed in claim 15, wherein the control unit is used to control the display to display the screen, so that the display parameters of the display can be changed in a circular switching manner. 19. The display as claimed in claim 15, wherein the control unit can be used to detect whether a host system is turned on, and the display can be used to selectively set one of an off state, a power saving state and the normal working state The control unit is also used to set the display to enter the power-saving state when it is detected that the host system is not turned on and the switch is turned on when the display is in the off state. 20. The display as claimed in claim 19, wherein the control unit can be used to detect whether a host system is turned on, and the display can be used to selectively set one of an off state, a power saving state and the normal working state The control unit is also used to set the display to enter the normal working state when it is detected that the host system is turned on and the switch is turned on when the display is in the off or power saving state. 21. The display as claimed in claim 19, wherein the control unit can be used to detect whether a host system is turned on, and the display can be used to selectively set one of an off state, a power saving state and the normal working state The control unit is also used to set the display to enter the off state when it is detected that the host system is turned on and the switch is turned on for longer than the default value when the display is in the normal working state. 22. A display that can be selectively placed in or out of a normal operating state, the display comprising: A storage device, storing a first display parameter and an adjustment value, after calculating the first display parameter and the adjustment value, an updated display parameter can be obtained. When the display is in the normal working state, it can selectively A display parameter or the updated display parameter to display a picture; a switch that can be selectively turned on; and a control unit, electrically coupled to the switch, for detecting whether the switch is turned on; Wherein when the control unit detects that the switch is turned on, and the turn-on time of the switch is shorter than a default value, the control unit controls the display from "displaying the picture according to the first display parameter" to "displaying the picture according to the first display parameter". The updated display parameters display the screen" and when the control unit detects that the switch is turned on and the switch's turn-on time exceeds the default value, the control unit controls the display to break away from the normal working state. 23. The display as claimed in claim 22, wherein the control unit is used to change the brightness of the display when the on-time of the switch is shorter than the default value. 24. The display as claimed in claim 22, wherein the control unit is used to change the contrast of the display when the on-time of the switch is shorter than the default value. 25. The display as claimed in claim 22, wherein the control unit is used to control the display to add the display parameters according to the updated display parameter when it is detected that the switch is turned on and the turn-on time of the switch is shorter than the default value. The adjustment value displays the picture, and changing the display parameters of the display in this way changes the display parameters of the display in a cyclic switching manner. 26. The display as claimed in claim 22, wherein the control unit can be used to detect whether a host system is turned on, and the display can be used to selectively set one of an off state, a power saving state and the normal working state The control unit is also used to set the display to enter the power-saving state when it is detected that the host system is not turned on and the switch is turned on when the display is in the off state. 27. The display as claimed in claim 26, wherein the control unit can be used to detect whether a host system is turned on, and the display can be used to selectively set one of an off state, a power saving state and the normal working state The control unit is also used to set the display to enter the normal working state when it is detected that the host system is turned on and the switch is turned on when the display is in the off or power saving state. 28. The display as claimed in claim 26, wherein the control unit can be used to detect whether a host system is turned on, and the display can be used to selectively set one of an off state, a power saving state and the normal working state The control unit is also used to set the display to enter the off state when it is detected that the host system is turned on and the switch is turned on for longer than the default value when the display is in the normal working state.

Images