KR19990054444A - Variable device and method of OSD screen of display device - Google Patents

Abstract

The present invention relates to a device and method for changing the OSD screen of the display device, in the device for changing the OSD screen in the display device, receiving and outputting the horizontal and vertical synchronous signal and receiving the OSD adjustment signal according to the user's selection OSD A microcomputer for outputting the OSD enable signal, the first OSD control data, and the OSD data by determining a variable amount of the screen; a horizontal and vertical oscillation circuit configured to output horizontal and vertical oscillation signals by receiving the horizontal and vertical synchronization signals; The OSD data is displayed according to the first OSD control data when the horizontal and vertical oscillation signals are compared with the first OSD control data and the second OSD control data which is the initial screen setting condition. If the same, the OSD control unit for outputting the OSD video signal for displaying the OSD data in accordance with the second OSD control data In this configuration, the size and position of the OSD screen may be varied by the user using an OSD control unit applied to the display device.

Description

Variable device and method of OSD screen of display device

The present invention relates to an OSD screen variable device and a method of a display device, and in particular, an OSD screen variable device capable of varying a size and a position of an OSD screen displayed on a screen of a display device according to a user's selection. And to a method.

In general, the OSD control unit applied to the display device is a means for displaying a display device so that general users can easily and accurately use information on the display device or the performance of the display device. Accordingly, according to the user's selection, the OSD controller displays various information about the display device on the OSD screen of the display device.

The OSD screen of the display device has a screen size and position preset by the manufacturer of the initial OSD controller. It is displayed on the display device according to the screen size and position set at the time of manufacture by the manufacturer of the OSD control unit. This size and position is generally set to display an OSD screen having a suitable size in the center of the display device to display the OSD function.

That is, when the OSD control unit stores data about the size of the OSD and data about the position in the memory, and receives a signal for selecting an OSD function from the outside, the OSD control unit reads the data value stored in the memory to display the display device. It is operated to display on the screen. This prevents users from changing this size or position when selecting OSD functions separately.

Therefore, the present invention provides a device capable of changing the size and position of the OSD screen by receiving a size and position adjustment signal input from the outside to the inside of the OSD control unit applied to the display device to solve the above problems; The purpose is to provide a method.

In order to achieve the above object, the present invention provides a device for varying an OSD screen in a display device. A microcomputer for outputting the OSD enable signal, the first OSD control data and the OSD data, a horizontal and vertical oscillation circuit receiving the horizontal and vertical synchronization signals to output horizontal and vertical oscillation signals, and the OSD enable signal according to the OSD enable signal. Is driven to compare the horizontal and vertical oscillation signals with the first OSD control data and the second OSD control data which is the initial screen setting condition, and if different, displays the OSD data according to the first OSD control data, or if the second OSD control data is the same. According to the present invention, the OSD controller is configured to output an OSD video signal for displaying OSD data.

According to another aspect of the present invention, there is provided a method of varying an OSD screen in a display device, the method comprising: determining whether the OSD control data is equal to the second OSD control data stored in a memory when the first OSD control data is input; If the OSD control data is not the same in the step of determining whether or not the same, temporarily storing the first OSD control data in the memory; and temporarily storing the first OSD control data and the OSD in the step of temporarily storing the first OSD control data in the memory In the step of determining whether the control data is the same, if the data is the same, the step of processing the OSD data according to the second OSD control data and outputting the OSD video signal.

1 is a block diagram showing an internal circuit configuration of a display device to which a variable device of an OSD screen is applied according to the present invention;

FIG. 2 is a block diagram showing a detailed configuration of the OSD control unit shown in FIG. 1;

3 is a flowchart illustrating an OSD screen variable method according to the present invention;

4 is a flowchart illustrating an embodiment of a method for changing a vertical size and a position of the OSD screen illustrated in FIG. 3.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in FIG. 1, the variable device of the OSD screen according to the present invention receives horizontal and vertical synchronization signals (H-SYNC, V-SYNC) received from a computer main body (not shown), and determines the presence or absence of frequency and polarity. Output and input OSD adjustment signal according to the user's selection to determine the OSD screen variable, OSD enable signal (OSD ENABLE) and the first OSD control data (H-BLANKING, V-BLANKING, OSD H-POSITION1, OSD V) -POSITION1, OSD H-SIZE1, OSD V-SIZE1) and the microcomputer 10 for outputting OSD data (OSD DATA), and the horizontal and vertical synchronization signal (H-SYNC, V-SYNC) output from the microcomputer 10 ) Is applied to the horizontal and vertical oscillation circuit 20 for outputting the horizontal and vertical oscillation signals H-SYNC 'and V-SYNC', and to the OSD enable signal output from the microcomputer 10. The horizontal and vertical oscillation signals (H-SYNC ', V-SYNC') which are driven along and output from the horizontal and vertical oscillation circuits 20 and the First OSD control data (H-BLANKING, V-BLANKING, OSD H-POSITION1, OSD V-POSITION1, OSD H-SIZE1, OSD V-SIZE1) and second OSD which are initial screen setting conditions output from the ECOM 10. After comparing the control data, if different, the OSD data is displayed or equal to the first OSD control data (H-BLANKING, V-BLANKING, OSD H-POSITION1, OSD V-POSITION1, OSD H-SIZE1, OSD V-SIZE1). An OSD controller 30 for outputting OSD video signals OSD-R, OSD-G, and OSD-B for displaying OSD data according to second OSD control data; and OSD video output from the OSD controller 30. Video pre and main amplifiers 40 and 50 that receive and amplify signals (OSD-R, OSD-G, OSD-B) and output them to a cathode ray tube (abbreviated as CRT), and the horizontal and vertical oscillation circuits ( 20) CRT is generated by applying the horizontal and vertical oscillation signals (H-SYNC ', V-SYNC') output from the deflection yoke (DY) mounted on the neck of the CRT. Displayed consists of the deflection circuit 60 to synchronize the OSD screen.

In the method of controlling the OSD screen variable apparatus of the present invention having the above configuration, as shown in FIG. 3, if the OSD function is selected in the start step S10 and the start step S10 is selected, Is stored in the memory 31 (shown in FIG. 2) when the first OSD control data input step S20 for changing the OSD screen and the first OSD control data are input in the first OSD data input step S20. The first OSD control data is temporarily stored in the memory 31 when the OSD control data are not the same in step S30 of determining whether they are the same as compared to the second OSD control data and in step S30 of determining whether the OSD control data is the same. In step S40 of storing and step S40 of temporarily storing the first OSD control data in the memory 31, in step S30 of determining whether the temporarily stored first OSD control data is the same as the OSD control data. day If the data is the same, if the OSD video signal output in step S50 of processing the OSD data and outputting the OSD video signal according to the second OSD control data and outputting the OSD video signal in step S50 is displayed on the CRT, the OSD is displayed. It consists of step S60 which complete | finishes a screen variable adjustment.

Looking at the present invention having such a configuration in more detail as follows.

First, the general operation of the display device will be described briefly. After receiving the horizontal and vertical synchronization signals H-SYNC and V-SYNC from the computer main body (not shown), the microcomputer 10 determines whether there is a frequency and polarity. It is applied to the horizontal and vertical oscillation circuit 20. The horizontal and vertical oscillation circuit 20 generates the horizontal and vertical oscillation signals H-SYNC 'and V-SYNC' according to the applied horizontal and vertical synchronization signals H-SYNC and V-SYNC. Is applied. The deflection circuit 60 generates horizontal and vertical sawtooth wave currents in the deflection yoke DY mounted to the neck of the CRT according to the applied horizontal and vertical oscillation signals H-SYNC 'and V-SYNC'. . The horizontal and vertical sawtooth currents generated in the deflection yoke DY are sufficiently amplified by the video preamplifier 40 and the video main amplifier 50 which have received the video signals R, G, and B output from the computer main body. The scanning period of the video signals R, G, and B applied to the CRT is determined and displayed on the screen.

In operation S10, the user selects an OSD function by using a key (not shown) mounted on the display device in order to know information about the current display device at the initial operation or initial power-on of the display device. When the OSD function is selected, the microcomputer 10 is applied to generate the OSD enable signal (OSD ENABLE) for driving the OSD controller 30.

At this time, the user generates an OSD adjustment signal using the key to manage the OSD screen to the desired screen position or size. The generated OSD adjustment signal is applied by the microcomputer 10 to determine the OSD screen variable amount so that the first OSD control data H-BLANKING, V-BLANKING, OSD H-POSITION1, OSD V-POSITION1, OSD H-SIZE1, OSD V-SIZE1). The first OSD control data H-BLANKING, V-BLANKING, OSD H-POSITION1, OSD V-POSITION1, OSD H-SIZE1, and OSD V-SIZE1 generated in the microcomputer 10 are applied by the OSD controller 30. (S20).

The OSD control unit 30 receiving the first OSD control data H-BLANKING, V-BLANKING, OSD H-POSITION1, OSD V-POSITION1, OSD H-SIZE1, and OSD V-SIZE1 is stored in the memory 31. The second OSD control data (OSD H-POSITION2, OSD V-POSITION2, OSD H-SIZE2, OSD V-SIZE2), which are initial setting conditions of the OSD screen position and size, are compared with each other. As a result of the comparison, if the first OSD control data (H-BLANKING, V-BLANKING, OSD H-POSITION1, OSD V-POSITION1, OSD H-SIZE1, OSD V-SIZE1) and the second OSD control data are not the same, the microcomputer 10 The first OSD control data (H-BLANKING, V-BLANKING, OSD H-POSITION1, OSD V-POSITION1, OSD H-SIZE1, and OSD V-SIZE1) inputted from the user are temporarily stored in the memory 31 (S40).

If the first OSD control data H-BLANKING, V-BLANKING, OSD H-POSITION1, OSD V-POSITION1, OSD H-SIZE1, and OSD V-SIZE1 are temporarily stored in the memory 31, the OSD controller 30 In the first OSD control data (H-BLANKING, V-BLANKING, OSD H-POSITION1, OSD V-POSITION1, OSD H-SIZE1, OSD V-SIZE1) and horizontal and vertical oscillation circuit 20 stored in the memory 31. OSD video signals (OSD-R, OSD-G, OSD-) are processed by processing OSD data applied from the microcomputer 10 according to the generated horizontal and vertical oscillation signals H-SYNC 'and V-SYNC'. Generate and output B). On the contrary, if the first OSD control data H-BLANKING, V-BLANKING, OSD H-POSITION1, OSD V-POSITION1, OSD H-SIZE1, OSD V-SIZE1 and the second OSD control data are the same, the second OSD control data In operation S50, the OSD video signals OSD-R, OSD-G, and OSD-B are generated.

As such, the OSD video signals OSD-R, OSD-G, and OSD-B generated from the OSD controller 30 are amplified to a predetermined level through the video preamplifier 40 and then applied to the video main amplifier 50. Is amplified enough. The OSD video signals OSD-R, OSD-G, and OSD-B sufficiently amplified through the video main amplifier 50 are applied to the CRT and displayed on the OSD screen (S60). At this time, when the OSD video signals OSD-R, OSD-G, and OSD-B are displayed on the CRT screen, proper timing of horizontal and vertical blanking is applied from the microcomputer 10 to the horizontal blanking control. Data H-BLANKINING and vertical blanking control data V-BLANKING. In addition, the position and size of the OSD screen are set by the horizontal blanking control data (H-BLANKING) and the vertical blanking control data (V-BLANKING).

More specifically, an example of adjusting the horizontal position and the size of the OSD screen will be described with reference to FIGS. 2 to 4.

The OSD processor 33 is driven by receiving an OSD enable signal (OSD ENABLE) output from the microcomputer 10. In addition, the first OSD horizontal position control data (OSD H-POSITION1) or the first OSD horizontal size control data (H-SIZE1) is applied by the first comparator 32a to the third comparator 32c of the comparator 32. Receive (S11). Each of the first comparator 32a to the third comparator 32c to which the first OSD horizontal position control data OSD H-POSITION1 or the first OSD horizontal size control data H-SIZE1 is applied is applied to the applied first OSD. Horizontal position control data OSD H-POSITION1 to first OSD horizontal size control data H-SIZE1 and second OSD horizontal position control data OSD H-POSITION2 to second OSD horizontal size control stored in the memory 31. Comparison is made with data H-SIZE2 (S12, S14).

As a result of the comparison, the first OSD horizontal position control data (OSD H-POSITION1) or the first OSD horizontal size control data (H-SIZE1) is the second OSD horizontal position control data (OSD H-POSITION2) or the second OSD horizontal size control. If greater than the potential level of the data H-SIZE2, the first OSD horizontal position control data OSD H-POSITION1 or the first OSD horizontal size control data H-SIZE1 is transferred through the OSD processor 33 to the memory 31. Temporarily store in S13 and S15. The first OSD horizontal position control data OSD H-POSITION1 or the first OSD horizontal size control data H-SIZE1 temporarily stored in the memory 31 are read by the OSD processor 33 and then horizontally and vertically oscillated. The OSD data is processed according to the signals H-SYNC 'and V-SYNC' to output OSD video signals OSD-R, OSD-G, and OSD-B, respectively. In contrast, the first OSD horizontal position control data (OSD H-POSITION1) or the first OSD horizontal size control data (H-SIZE1) is the second OSD horizontal position control data (OSD H-POSITION2) or the second OSD horizontal size control. If the potential level of the data H-SIZE2 is equal to or smaller than the potential level of the data H-SIZE2, the first comparator 32a to the third comparator 32c are respectively configured to the second OSD horizontal position control data OSD H-POSITION2 to the second OSD horizontal size. The control data H-SIZE2 is output to the OSD processor 33.

The OSD processor 33 receiving the second OSD horizontal position control data OSD H-POSITION2 or the second OSD horizontal size control data H-SIZE2 receives the second OSD horizontal position control data OSD H-POSITION2. ) Or OSD video signals (OSD-R, OSD-G, OSD-B) are generated by processing OSD data according to the initial OSD screen setting conditions according to the second OSD horizontal size control data (H-SIZE2). And outputs to the video preamplifier 40 (S16).

In this way, the video preamplifier 40 receiving the OSD video signals OSD-R, OSD-G, and OSD-B set and output by the first OSD control data or the second OSD control data is amplified to a predetermined level. Then, it is applied to the video main amplifier 50 and sufficiently amplified and then applied to the CRT for display. Also, the first vertical position control data OSD V-POSITION1 and the first vertical size control data OSD V-SIZE1 shown in FIG. 2 are also the first horizontal position control data OSD H-POSITION1 and the first horizontal size control. It is adjusted through the same process as data (OSD H-SIZE1) to adjust the vertical position and size of the OSD screen.

As described above, the present invention enables the user to conveniently manage the OSD screen as the size and position of the OSD screen can be arbitrarily changed using the OSD control unit applied to the display device. Provide the effect.

Claims (4)

In the device for changing the OSD screen on the display device, A microcomputer that receives and outputs horizontal and vertical synchronization signals, and receives an OSD adjustment signal according to a user's selection to determine an OSD screen variable and outputs an OSD enable signal, first OSD control data, and OSD data; Horizontal and vertical oscillation circuits for receiving the horizontal and vertical synchronization signals and outputting horizontal and vertical oscillation signals; The OSD data is displayed according to the first OSD control data when the horizontal and vertical oscillation signals are compared with the first OSD control data and the second OSD control data, which is the initial screen setting condition. Or an equalizer, the OSD control unit outputting an OSD video signal for displaying OSD data according to the second OSD control data. The method of claim 1, A memory storing second OSD control data for displaying according to an initially set condition when displaying an OSD screen; The second OSD control data of any one of the second OSD control data and the first OSD control data of any one of the first OSD control data output from the micom is received and compared and equal to one of the second OSD control data. A comparator for outputting any one of the first OSD control data if different; Drives by receiving the enable signal and outputs any one of the first OSD control data, and outputs any one of the first OSD control data and one of the second OSD control data stored after being temporarily stored in the memory. And an OSD processor for receiving the horizontal and vertical oscillation signals and outputting an OSD video signal for displaying the applied OSD data. The method of claim 1, The comparison unit, A first comparator configured to receive and compare second OSD horizontal position control data stored in the memory and first OSD horizontal position control data output from the micom; A second comparator configured to receive and compare second OSD vertical position control data stored in the memory with first OSD vertical position control data output from the micom; A third comparator configured to receive and compare second OSD horizontal size control data stored in the memory with first OSD horizontal size control data output from the micom; And a fourth comparator configured to receive and compare the second OSD vertical size control data stored in the memory with the first OSD vertical size control data output from the microcomputer. In the method for varying the OSD screen on the display device, When the first OSD control data is input, comparing the second OSD control data stored in the memory to determine whether the first OSD control data is the same; Temporarily storing the first OSD control data in a memory when the OSD control data are not the same in determining whether the OSD control data is the same; In the step of temporarily storing the first OSD control data in a memory, if the data is the same in the step of determining whether the temporarily stored first OSD control data is the same as the OSD control data, the OSD data is processed by processing the OSD data according to the second OSD control data. And a step of outputting a signal.