KR100461464B1 - Method for controlling an external input signal of a display device - Google Patents

Abstract

The present invention relates to an external input signal control method for controlling an external input signal input from at least one external video device. The method for controlling an external input signal may include setting an output order for an external input signal input from at least one external video device and output information for each external input signal, and a preset order according to an operation start request from a user. After switching to the corresponding external video device according to, and outputting an external input signal input from the external video device according to the preset output information, and after outputting the external input signal input from the external video device a predetermined After the elapse of time, a predetermined message is output through the OSD screen, and if any input is generated from the user, switching to an external video device corresponding to the next preset step.

Description

METHOOD FOR CONTROLLING AN EXTERNAL INPUT SIGNAL OF A DISPLAY DEVICE}

The present invention relates to a method for controlling an external input signal in a projector that can be presented using at least one external input signal, wherein the user can directly control switching of the external input signal during presentation. It is about a method.

In the presentation of seminars, conferences, research papers, etc., as the multimedia materials have recently increased, many video products that can display various video input signals are used. In particular, many projectors are being used that can display an image on a large-sized screen, are convenient to use, and can display various kinds of image input signals.

Also, in order to smoothly present the presentation, a remote controller for controlling the projector is generally used.

FIG. 1 schematically illustrates an internal configuration of a general projector and a relationship between a projector and an external image device.

As shown in FIG. 1, the projector 100 may control the overall operation of the microcomputer 110, the memory 112, the counter 114, the switch unit 116, the signal processor 118, and the OSD output unit 122. ) And an LCD panel 120, and a user transmits a predetermined control code value to the projector 100 using a user controller 150 such as a remote controller or a keypad. Meanwhile, the projector 100 receives an external input signal from the systems 160, 162, and 164, which are at least one external image display device, and selects one external input signal through the switch unit 116. It is output to the panel 120. Hereinafter, the function of each component of the projector will be described schematically.

The microcomputer 110 receives and processes a control code value received from the user controller 150, and controls the overall operation of other components of the projector.

The OSD output unit 122 displays a notification function to a user, and the memory 112 stores control code values corresponding to information set for control of an external input signal desired by the user, and the counter 114 Is a timer for detecting a time at which the external input signals are output.

One of at least one external input signal input from the outside through the switch unit 116 is selected and displayed on the LCD panel 120 through the signal processing unit 118.

When giving a presentation using a projector having the above-described configuration, a plurality of external input signals are used to provide various data screens.

In the conventional projector, when the external input selection key is pressed to switch the external input signal, the system 1-> system 2->. -> It is configured to switch input sequentially in the order of system n. Such a conventional projector has a problem that it is very difficult for a presenter to manually select an external input signal when there are many external input signals, and thus the presentation is not smoothly performed.

As another method of controlling an external input signal, an external input selection key for selecting an external input is assigned to the user controller in the same manner as the number of external input signals, so that the presenter as a user can directly control each external input signal. Although this method has the advantage that the presenter can directly control the external input signal, there is a problem that a large number of selection keys must be assigned to the user controller.

In order to solve the above problem, an external input signal control method as shown in FIGS. 2 and 3 has been proposed. 2 is a flowchart sequentially illustrating a process of setting a presentation input selection mode, and FIG. 3 is a flowchart sequentially illustrating a process of performing a presentation according to a set presentation input selection mode.

Referring to FIG. 2, first, when a presentation input selection mode is selected by a user, an OSD screen for registering a presentation order and an external input signal is output (step 200). Next, the external input signal is registered (step 210) and stored in the memory (step 220). Next, after confirming that the presentation setting is completed (step 230), if not, the process returns to step 200 again, otherwise, the process ends.

After the setting process for the presentation input selection mode is finished according to the process shown in FIG. 2, as shown in FIG. 3, if there is a request for starting the presentation operation from the user (step 300), the external terminal is set according to the preset order. The presentation is executed while switching the input signal. First, after selecting the first external input signal registered in the memory (step 320), after outputting the selected external input signal for a predetermined time (step 330), it is continuously repeated sequentially until the last external input signal is switched. The external input signal is switched and the corresponding external input signal is output.

In the conventional external input signal control method according to the above-described method, the display time for a specific external input signal is determined, and the external input signal is automatically switched after the determined time passes. In this case, when the presentation time is delayed due to the occurrence of an unexpected situation such as the presenter's situation or an unexpected question and answer, the flow of the presentation is broken.

In order to solve the above problems, an object of the present invention is to provide an external input signal control method that can switch the external input signal under the control of the user.

Another object of the present invention is to provide an image display apparatus capable of switching an external input signal under the control of a user.

1 is a block diagram schematically illustrating a connection relationship between a general projector and an external input signal and an internal configuration thereof.

2 is a flowchart sequentially illustrating a process of setting a presentation input selection mode according to a conventional external input signal control method;

3 is a flowchart sequentially illustrating a process of executing a presentation according to a conventional external input signal control method.

4 is a flowchart sequentially illustrating a process of setting a presentation input selection mode according to an external input signal control method of the present invention;

FIG. 5 is a screen configuration diagram illustrating an OSD screen for setting a presentation input selection mode of FIG. 4. FIG.

6 is a flowchart sequentially illustrating a process of executing a presentation according to an external input signal control method of the present invention.

7 is a screen configuration diagram illustrating a message informing of a switch for an external input signal while executing a presentation according to the present invention.

<Explanation of symbols for the main parts of the drawings>

100: projector

110: micom

112: memory

114: counter

116: switch unit

118: signal processing unit

120: LCD panel

122: OSD output unit

150: user control unit

160, 162, 164: External video system

500: OSD screen for presentation input selection mode

510: Input signal selection menu

520: Display time menu

530: Screen configuration information menu

540: display information menu

A feature of the present invention for achieving the above object is, in an external input signal control method for controlling an external input signal input from at least one external video device, (a) an external input input from at least one external video device Setting an output order of signals and output information of each external input signal, (b) in response to a request for starting operation from a user, switching to a corresponding external video device in a predetermined order, and then outputting predetermined output information Outputting an external input signal input from the external video device according to the present invention; and (c) outputting an external input signal input from the external video device, and then outputting a predetermined message through an OSD screen after a predetermined time elapses. If any input occurs from the user after outputting, proceed to the external video device in the next preset order. It comprises a step of.

In this case, the output information for each external input signal set in step (a) is selected from an external video device, a display time of an external input signal input from the external video device, screen configuration information for the external input signal, and the external device. It is preferable to include at least one or more of the display information for the input signal.

More preferably, the selection menu for the screen configuration information may include at least one or more of PIP, POP, Double Window, and Multi Window, and the selection menu for the display information may include: It is preferable to include at least one of the material screen and the presentation information.

According to another aspect of the present invention, a video display device includes a switch unit for selecting and outputting one of an external input signal input from at least one external video device connected thereto, and when a presentation input selection mode is selected by a user. And an OSD output unit for setting a presentation order and an external input signal corresponding to each order and output information for each external input signal through an OSD screen, and a presentation order and each external input signal set through the OSD output unit. Memory for storing the output information, if there is a request to start the presentation operation from the user, and outputs the corresponding external input signal in accordance with the presentation order stored in the memory and the output information for each external input signal, to one external input signal After the preset output time has elapsed, the A microcomputer for controlling the switch unit to switch to an external input signal of a next order when a predetermined input is generated from a user after outputting a message of a message, and a counter for detecting an output time at which one external input signal is output. Therefore, the user can control the switching of the external input signal at the scheduled time.

According to the present invention, when presenting in a projector to which at least one external input signal is connected, the user can directly control the switching of the external input signal at a desired time, thereby making the presentation smoothly.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention. First, in adding reference numerals to the components of each drawing, it should be noted that the same components are denoted by the same reference numerals as much as possible, even if displayed on different drawings.

Hereinafter, an external input signal control method according to the present invention will be described in detail with reference to FIGS. 4 to 7. The external input signal control method according to the present invention comprises a presentation input selection mode setting step and a presentation execution step. Hereinafter, each step will be described in detail.

4 is a flowchart illustrating a presentation input selection mode setting step of the external input signal control method according to the present invention. Referring to FIG. 4, first, an OSD screen for registering a presentation order and an external input signal is output according to a presentation input selection mode selection from a user (step 400). Next, the desired external input signal is registered (step 410), the display time of the external input signal is registered (step 420), the screen configuration information of the external input signal is registered (step 430), and the external input signal. Register the display information for (step 440). Next, the registered items are stored in the memory (step 450). Next, after confirming that the presentation setting is completed (step 460), if it is completed, it ends, otherwise it returns to step 400 and sets again repeatedly.

5 is a screen configuration diagram illustrating an OSD screen for setting a presentation input selection mode according to an embodiment of the present invention.

When the user selects the presentation input selection mode, the OSD screen 500 as shown in FIG. 5 is output. First, the input signal selection item 510 selects a desired external input signal, and the selection item may be PC, VCR, DVD, CATV, AIR, or the like. Next, the display time 520 is to set the time to display the external input signal selected in the input signal selection, the aspect ratio converter (530) is PIP (Picture-in-Picture), POP (Picture) -out-Picture), DW (Double-Window), Multi-Window, etc. can be selected. In addition, the display information item 540 may set a material screen, presentation information, and the like. Next, when the external input signal is to be continuously set, the next input signal selection item 550 is selected as 'Yes', thereby continuing.

Next, by pressing the save key, all the registered contents are stored in the memory.

6 is a flowchart sequentially illustrating a process of executing a presentation by a user. Hereinafter, a presentation execution process will be described in detail with reference to FIG. 6.

First, if there is a request for starting a presentation from the user (step 600), the switch unit is switched to the first external input signal among the registered external input signals (step 620). Next, the first external input signal is outputted during the display time according to the preset screen configuration information (step 630).

When the preset display time ends, the registered display information is displayed on the OSD screen (step 640). 7 exemplarily illustrates an OSD screen 710 outputting display information on the full screen 700. By displaying the display information in this way, the presenter can inform the audience that the time for displaying the current external input signal is over, and the audience can inform the information about the next external input signal.

Next, if a predetermined input occurs from a user controller such as a remote controller or a keypad from the user who is the presenter (step 650), the process proceeds to the next step, or waits until there is a predetermined input from the user.

Next, the above-described process is repeatedly performed while switching the external input signals in the registered order until the final external input signal is output. After outputting the final external input signal, all series of processes are completed.

As described above, in the detailed description of the present invention, specific embodiments have been described, but various modifications can be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the claims below, but also by those equivalent to the claims.

According to the present invention, not only the presentation proceeds in accordance with the presentation input signal selection set by the user, but also the user can control the switching from one external input signal to another during the presentation by the user's control. Presentation can be made more smoothly.

In addition, by outputting the display information on the OSD screen at an appropriate time, the presenter can be notified of the switching time of the external input signal, and the audience can be informed of the content of the next presentation.

Claims (6)

An external input signal control method for controlling an external input signal input from at least one external video device, (a) setting an output order for an external input signal input from at least one external video device and output information for each external input signal; And (b) switching to a corresponding external video device in a predetermined order according to a request to start an operation from a user, and then outputting an external input signal input from the external video device according to preset output information; And (c) After a predetermined time has elapsed after outputting the external input signal input from the external video device, a predetermined message is output through the OSD screen. Switching to the corresponding external video device External input signal control method comprising the. According to claim 1, The output information for each external input signal set in the step (a) is selected from the external video device, the display time of the external input signal input from the external video device, the screen configuration for the external input signal Information, and at least one of the display information of the external input signal. The method of claim 2, wherein the selection menu for the screen configuration information comprises at least one of a PIP, a POP, a double window, and a multi window. 3. The method of claim 2, wherein the selection menu for the display information includes at least one of a material screen and presentation information. The method according to claim 2 or 4, wherein the predetermined message output on the OSD screen in step (c) is determined according to the preset display information. A switch unit for selecting and outputting one of an external input signal input from at least one connected external video device; An OSD output unit for setting a presentation order, an external input signal corresponding to each order, and output information for each external input signal through an OSD screen when a presentation input selection mode is selected by a user; A memory for storing a presentation order set through the OSD output unit and output information for each external input signal; If there is a request for starting a presentation operation from the user, the corresponding external input signal is output according to the presentation order stored in the memory and the output information of each external input signal, but when the preset output time for one external input signal has elapsed. A microcomputer that outputs a predetermined message through an OSD screen and controls the switch unit to switch to an external input signal in a next order when a predetermined input is generated from a user; And Counter for detecting output time when one external input signal is output And a user to control switching of the external input signal at a reserved time.