TWI733402B - Display and its control method - Google Patents

Abstract

A display includes a transmission port, a panel unit and a control unit. When the control unit receives a video signal with a plurality of parameter setting values corresponding to a plurality of timing parameters through the transmission port in a preliminary setting state, the control unit sequentially enters a setting state and a display state. When the control unit determines that the received video signal is interrupted in the display state, the control unit enters a delayed reset state from the display state. In the delayed reset state, the control unit determines whether the received video signal is the same as before the interruption within a predetermined delay time. The video signal of the parameter setting value. When the control unit determines that the video signal with the same parameter setting value as before the interruption is received again within the predetermined delay time in the delay reset state, the control unit resumes execution in the display state.

Description

Display and its control method

The present invention relates to a display, in particular to a display having a transmission port and capable of receiving a video signal to be displayed through the display. The invention also relates to a display control method.

When a user runs an application (such as a game program) in full screen under the Windows operating system, the Windows operating system allows the user to switch the display screen from the application screen back to the Windows operation by pressing the Alt and Tab keys on the keyboard The picture of the system.

When the host computer receives an instruction to switch the screen, the host computer changes the video signal output to the display from the video signal used to display the screen of the application to the video signal used to display the screen of the Windows operating system.

If the existing monitor detects the interruption of the video signal in the display state, it will immediately enter the preparation setting state. In the preparation setting state, if the video signal is received, it will enter the setting state to apply the timing parameter setting value of the video signal, and then enter The display status shows the video signal.

Generally speaking, it takes about 3 seconds to complete the application of the timing parameter setting value in the setting state. Therefore, when the host computer receives the instruction to switch the screen and switches the video signal output to the display, it takes about 3 seconds for the display to display the switched video signal normally (the display is in a black screen state for these 3 seconds).

The inventor of the present case then thought that sometimes the timing parameter setting value of the Windows operating system is the same as the timing parameter setting value of the application program, and the monitor actually does not need to reapply the timing parameter setting value to display the switched video signal normally. Therefore, how to develop a new display that can start to display the switched video signal earlier (to shorten the black screen time) when the timing parameter settings of the video signal before and after the switch are the same. Invention topics to be explored further.

Therefore, the purpose of the present invention is to provide a display.

Another object of the present invention is to provide a method for controlling a display.

Therefore, the display of the present invention includes a transmission port, a panel unit and a control unit. The control unit is electrically connected to the transmission port and the panel unit.

When the control unit receives a video signal with a plurality of parameter setting values corresponding to a plurality of timing parameters through the transmission port in a preparation setting state, the control unit sequentially enters a setting state and a setting state from the preparation setting state. In the display state, the control unit applies the parameter setting values in the setting state, and in the display state the control unit controls the panel unit to display the video signal according to the parameter setting values.

When the control unit determines that the received video signal is interrupted in the display state, the control unit enters a delayed reset state from the display state, and in the delayed reset state, the control unit determines whether it is again within a predetermined delay time Receive the video signal with the same parameter settings as before the interruption.

When the control unit determines in the delay reset state that the video signal with the same parameter settings as before the interruption is received again within the predetermined delay time, the control unit resumes execution in the display state and continues to perform according to the The parameter setting value controls the panel unit to display the video signal.

In some implementations, when the control unit determines in the delay reset state that the video signal with the same parameter settings as before the interruption is not received again within the predetermined delay time, the control unit is controlled by the The delayed reset state enters the preliminary setting state.

The control method of the display of the present invention is implemented by a display that includes a transmission port, a panel unit, and a control unit. The method includes: when the control unit is in a pre-setting state, it receives a signal with multiple A video signal corresponding to the parameter setting values of a plurality of timing parameters, the control unit enters a setting state and a display state sequentially from the preliminary setting state, and the control unit applies the parameter setting values in the setting state. In the display state, the control unit controls the panel unit to display the video signal according to the parameter settings; when the control unit determines that the received video signal is interrupted in the display state, the control unit enters a delay reset from the display state In the delayed reset state, the control unit determines whether the video signal with the same parameter settings as before the interruption is received again within a predetermined delay time; and when the control unit is in the delayed reset state It is determined that the video signal with the same parameter settings as before the interruption is received again within the predetermined delay time, the control unit resumes execution in the display state and continues to control the panel unit to display the display according to the parameter settings Video signal.

The effect of the present invention is that when the control unit determines that the received video signal is interrupted in the display state, it does not directly enter the preliminary setting state as in the prior art, but enters the delayed reset state, and by When the control unit determines in the delay reset state that the video signal with the same parameter settings as before the interruption is received again within the predetermined delay time, the control unit resumes execution in the display state and continues to perform according to the Waiting for the parameter setting value to control the panel unit to display the video signal, so as to avoid the time consuming caused by the prior art re-executing the setting state under unnecessary circumstances.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numbers.

Referring to FIG. 1, an embodiment of the display 100 of the present invention includes a transmission port 1, a panel unit 2 and a control unit 3.

The transmission port 1 is, for example, a port capable of receiving image data (from a host computer) such as HDMI, Type-C USB, D-sub, DVI, and DisplayPort. The panel unit 2 is, for example, a liquid crystal panel, but not limited to this. The control unit 3 is electrically connected to the transmission port 1 and the panel unit 2.

1 and 2, the control method of the display 100 will be described below. First, as shown in step S01, the control unit 3 judges in a preliminary setting state whether it has received multiple timing parameters (such as H frequency, V frequency, Clock, resolution, HDR) via the transmission port 1. , FreeSync) parameter settings (for example, H frequency = 67.5KHz, V frequency = 60Hz, Clock = 148.5 MHz, resolution = 1920x1080, HDR = OFF, FreeSync = OFF) video signal, if it is, the control unit 3 The preliminary setting state sequentially enters a setting state (step S02) and a display state (steps S03, S04), if not, step S01 is executed again.

As shown in step S02, the control unit 3 applies the parameter setting values in the setting state. This step is generally called "frequency lock" or "synchronization".

As shown in step S03, in the display state, the control unit 3 controls the panel unit 2 to display the video signal according to the parameter setting values.

As shown in step S04, the control unit 3 determines whether the received video signal is interrupted in the display state, if not, then executes step S04 again, if yes, the control unit 3 enters a delay reset from the display state State (step S05).

As shown in step S05, in the delay reset state, the control unit 3 determines whether the video signal with the same parameter settings as before the interruption is received again within a predetermined delay time (for example, 1 second). In this embodiment, the length of the predetermined delay time can be set by the user.

If step S05 is judged to be YES, step S03 is executed again, that is, when the control unit 3 judges that in the delay reset state, the control unit 3 receives the same parameter setting values as before the interruption within the predetermined delay time. Video signal, the control unit 3 resumes execution in the display state and continues to control the panel unit 2 to display the video signal according to the parameter setting values.

If step S05 is judged to be no, then step S01 is executed again, that is, when the control unit 3 judges in the delay reset state that it has not received the same parameter setting values as before the interruption within the predetermined delay time For the video signal, the control unit 3 enters the pre-setting state from the delay reset state.

In summary, when the control unit 3 determines that the received video signal is interrupted in the display state, the display 100 of the present invention does not directly enter the preliminary setting state as in the prior art, but enters the delayed reset state. , And when the control unit 3 determines in the delay reset state that the video signal with the same parameter settings as before the interruption is received again within the predetermined delay time, the control unit 3 resumes execution at the Display the status and continue to control the panel unit 2 to display the video signal according to the parameter setting values, so as to avoid the time consuming of the prior art by re-executing the setting status in unnecessary situations, so it can indeed achieve the purpose of the invention .

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to Within the scope covered by the patent of the present invention.

100: display 1: Transmission port 2: Panel unit 3: control unit S01~S05: steps

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: FIG. 1 is a schematic diagram of a hardware connection relationship of an embodiment of the display of the present invention; and Figure 2 is a flowchart of this embodiment.

S01~S05: steps

Claims (4)

A display that contains: A transmission port; A panel unit; and A control unit, electrically connected to the transmission port and the panel unit; When the control unit receives a video signal with a plurality of parameter setting values corresponding to a plurality of timing parameters through the transmission port in a preparation setting state, the control unit sequentially enters a setting state and a setting state from the preparation setting state. Display state, the control unit applies the parameter setting values in the setting state, and in the display state the control unit controls the panel unit to display the video signal according to the parameter setting values; When the control unit determines that the received video signal is interrupted in the display state, the control unit enters a delayed reset state from the display state, and in the delayed reset state, the control unit determines whether it is again within a predetermined delay time Receiving the video signal with the same parameter settings as before the interruption; When the control unit determines in the delay reset state that the video signal with the same parameter settings as before the interruption is received again within the predetermined delay time, the control unit resumes execution in the display state and continues to perform according to the The parameter setting value controls the panel unit to display the video signal. The display according to claim 1, wherein, when the control unit determines in the delay reset state that the video signal with the same parameter settings as before the interruption is not received again within the predetermined delay time, the The control unit enters the preliminary setting state from the delay reset state. A display control method is implemented by a display, the display includes a transmission port, a panel unit and a control unit, the method includes: When the control unit receives a video signal with a plurality of parameter setting values corresponding to a plurality of timing parameters through the transmission port in a preparation setting state, the control unit sequentially enters a setting state and a setting state from the preparation setting state. Display state, the control unit applies the parameter setting values in the setting state, and in the display state the control unit controls the panel unit to display the video signal according to the parameter setting values; When the control unit determines that the received video signal is interrupted in the display state, the control unit enters a delayed reset state from the display state, and in the delayed reset state, the control unit determines whether it is again within a predetermined delay time Receive the video signal with the same parameter settings as before the interruption; and When the control unit determines in the delay reset state that the video signal with the same parameter settings as before the interruption is received again within the predetermined delay time, the control unit resumes execution in the display state and continues to perform according to the The parameter setting value controls the panel unit to display the video signal. The display control method according to claim 3, further including: When the control unit determines in the delay reset state that the video signal with the same parameter settings as before the interruption is not received again within the predetermined delay time, the control unit enters the standby state from the delay reset state Set status.

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