KR101134869B1 - Double/Wide video display device - Google Patents

Abstract

The present invention relates to a double / wide image display device. More particularly, when displaying a video signal in a double / wide screen format having a predetermined aspect ratio, it is possible to provide a high resolution double / wide screen to a viewer by increasing utilization of a blanking area. The present invention relates to a double / wide image display device capable of viewing at various angles.

To this end, the double / wide image display apparatus of the present invention includes a display unit for outputting an image signal received from the outside, a double / wide processor for converting the image signal output to the display unit into a double / wide screen format; A screen rotating unit for converting the double / wide processed video signal into a rotated screen format based on a virtual center axis on the screen, a screen scaling unit for converting the rotated video signal into a screen format enlarged to a predetermined size, and a user And a control unit for controlling the screen format according to the command, and further comprising a display rotating unit to rotate the display unit when necessary.

Double / Wide Screen, Blanking Area, Screen Rotator, Screen Scaling Unit, OSD Rotator, Display Rotator

Description

Double / Wide video display device

1 is a view for explaining a double / wide screen according to the prior art.

2 is a diagram illustrating a double / wide screen according to the present invention.

3 is a configuration diagram schematically illustrating a double / wide image display device according to the present invention.

4 is a diagram illustrating a screen rotating unit of a double / wide image display device according to the present invention.

5 is a diagram illustrating a screen scaling unit of a general double / wide image display apparatus.

6 is a diagram for explaining screen format conversion of a double / wide image display device according to the present invention.

7 is a view for explaining a rotating unit of a double / wide image display device according to the present invention.

8 is a flowchart illustrating a control method of a double / wide image display device according to the present invention.

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

20, 70: double / wide image display device 36a: double / wide processing unit

36b: screen rotation part 36c: screen scaling part

37a: OSD generation unit 37b: OSD rotation unit

37c: OSD scaling unit 39: Video mixing unit

The present invention relates to a double / wide image display device. In particular, as the screen is rotated and enlarged at a predetermined angle, the resolution can be increased, and the double / wide image can be comfortably viewed from various angles. It relates to a display device.

In general, a wide video display device is used to play a video and audio signal of a broadcast program transmitted through a wired or wireless channel from a broadcasting station, or to read a video tape recorder or an optical disk playback system. And an apparatus capable of displaying wide-area images at a 16: 9 aspect ratio, for example, in order to increase the viewing feeling in reproducing an audio signal. In addition, a double image display device is a method of dividing a screen from side to side and displaying two image signals inputted from different signal sources on the left and right screens simultaneously. A device capable of viewing a video signal reproduced from a video reproducing apparatus.

Hereinafter, a double / wide image display apparatus as described above will be described with reference to the accompanying drawings. However, hereinafter, it will be described as a double / wide television as an example.

1 is a view for explaining a double / wide screen according to the prior art. As shown, the double / wide screens A and B reproduced on the display portion 11 of the double / wide television 10 have a predetermined aspect ratio.

For example, as shown in FIG. 1A, when the image signal having an aspect ratio of 4: 3 is output to the display unit 11 having a size of 1920 × 1080 in double, the sizes of the left and right screens A and B are doubled. Are respectively 960 × 721, and blanking areas 12a and 12b are present on the upper and lower sides of the screens A and B, respectively, having longitudinal sizes of 1920 × 179 and 1920 × 180.

In addition, as shown in FIG. 1 (b), when a wide video signal having a 16: 9 aspect ratio is output to the display unit 11 having a size of 1920 × 1080 in a horizontal direction, the left and right screens A and B are displayed. ) Are 960 × 542, respectively, and there are blanking areas 13a and 13b each having a vertical size of 1920 × 269 on the upper and lower sides of the screens A and B, respectively.

 Therefore, according to the image display apparatus 10 according to the related art, when displaying a double or double wide screen on the display unit 11, a large amount of blanking areas 12 and 13 is generated, which is proportional thereto. There was a problem that the resolution of the screen occurs. That is, the size in the vertical and horizontal directions means the number of pixels in the vertical and horizontal directions. As the blanking area increases, the screen resolution is reduced due to the smaller number of pixels.

Accordingly, an aspect of the present invention is to provide a double / wide image display device capable of reducing the blanking area on the screen and increasing the resolution of the screen while allowing the display to be rotated so that viewing at various angles is possible.

To this end, the double / wide image display apparatus of the present invention includes a display unit for outputting an image signal received from the outside, a double / wide processor for converting the image signal output to the display unit into a double / wide screen format; A screen rotating unit for converting the double / wide processed video signal into a rotated screen format based on a virtual center axis on the screen, a screen scaling unit for converting the rotated video signal into a screen format enlarged to a predetermined size, and a user And a control unit for controlling the screen format according to the command.

In this case, it may be desirable to further include a display rotating unit for rotating the display unit, so that the user's vision can be matched with the display unit.

The display rotating unit may be both a manual type manually rotated by a user and an automatic type automatically rotated by a predetermined transmission means, and further comprising a sensor for detecting rotation of the display unit. .

Furthermore, since the video signal as described above includes an OSD signal, it may be preferable to further include an OSD processing unit for changing the format of the OSD signal in synchronization with the screen format change of the video signal.

On the other hand, in the control method of the double / wide image display apparatus of the present invention, the method includes: receiving a video signal from the outside, converting the video signal into a double / wide screen format, and performing the double / wide processed video signal. Converting the rotated video signal into a screen format that has been enlarged to a predetermined size and outputting the enlarged video signal to a display unit. It is characterized by.

The method may further include the step of allowing the display unit to coincide with the user's time in the normal posture by rotating the display unit, wherein the display unit rotating step includes manually rotating the user and predetermined transmission means. It would be desirable to automatically rotate by.

In addition, the automatic rotation is preferably made automatically by the detection signal of the sensor mounted on the display unit.

In addition, since the video signal as described above may include an OSD signal, it may be desirable to be able to change the format of the OSD signal in synchronization with the screen format change of the video signal.

Hereinafter, a double / wide television system according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a diagram illustrating a double / wide screen according to the present invention. As shown, each of the double screens A 'and B' reproduced on the display unit 21 of the double / wide television 20 according to the present invention is processed by the signal processing of the screen rotating unit to be described below. It is rotated by a predetermined angle about an imaginary central axis. In addition, the display unit 20 is also configured to be rotatable itself.

Therefore, the conventional double screen is divided into the left and right screens (A and B in FIG. 1) based on the time when the user is in a normal posture, but the present invention is divided into the upper and lower screens A 'and B'. . That is, in the present invention, the long axis of the double / wide television 10 coincides with the horizontal direction, but in the present invention, the long axis of the double / wide television 20 coincides with the vertical direction, so that each of the double screens A 'and B' corresponds to the horizontal direction. It is arranged up and down in the vertical direction.

For example, as shown in FIG. 2A, when the image signal having an aspect ratio of 4: 3 is double outputted to the display unit 21 having an aspect ratio of 1920 × 1080, each has a size of 1080 × 812. Screens A 'and B' are arranged up and down. Blanking areas 22a and 22b each having a vertical and horizontal size of 1080 × 98 are formed at the upper and lower ends thereof, and the upper and lower screens A 'and B' are divided between the upper and lower screens A 'and B'. A blanking area 23 having a size of 1080 × 100 is formed.

Also, as can be seen from FIG. 2 (b), when the video signal of the wide system having a 16: 9 aspect ratio is outputted to the display unit 21 having a size of 1920 × 1080 in a horizontal direction, 1080 × 610, respectively. Screens having a size of A 'and B' are arranged up and down. Blanking areas 24a and 24b each having a horizontal and horizontal size of 1080 × 233 are formed at the upper and lower ends thereof, and the upper and lower screens A 'and B' are divided between the upper and lower screens A 'and B'. In order to achieve this, a blanking area 25 having a size of 1080 × 230 is formed.

However, the blanking areas 23 and 25 for distinguishing the upper and lower screens A 'and B' may be selectively generated. In order to further increase the resolution of the screen, the blanking areas 23 and 25 may also be generated (23). , 25) Usability will be apparent.

As described above, according to the present invention, it is possible to provide a double / wide screen having a higher resolution as the blanking area utilization is increased as compared with the related art. That is, while the size of the conventional double screen (A, B in Fig. 1 (a) of Fig. 1 (a)) is 960 x 721, the present invention is higher in size because it is 1080 x 812. It is possible to provide a screen having a resolution. Similarly, the conventional double-wide screen having a 16: 9 aspect ratio (A and B in FIG. 1 (b)) is 960 × 542, respectively, while the present invention is 1080 × 610, respectively. It is possible to provide a screen having a higher resolution.

In the above description, the screens A 'and B' and the display unit 21 are rotated by 90 °, respectively. This is because, when considering the resolution according to the rotation and enlargement of the screen and the user's viewing convenience, it is most preferable to rotate 90 ° as shown in FIG.

In addition, the rotation of the display unit 21 is optional by the user. If necessary, only the screen may be rotated by 90 ° without rotation of the display unit 21 itself. Accordingly, the rotated screens A 'and B' coincide with the time when the user is in a lying posture, thereby improving viewing convenience.

Hereinafter, with reference to the accompanying Figure 3 will be described in detail the configuration of the present invention to enable the screen and the display to be rotated as described above.

3 is a schematic view showing a double / wide television according to the present invention. As shown, the double / wide television according to the present invention includes a composite video signal receiver 30 for receiving a composite video signal from the outside, a tuner 31 for selecting a channel of the composite video signal according to a user's selection, A demultiplexer 32 for classifying the tuned composite video signal into audio, video, and predetermined data, an audio decoder 33 for decoding the audio signal, and a voice for outputting the decoded audio signal. An output unit 34, a video decoder 35 for decoding a video signal, a video display processor 36 for converting a video signal displayed on a screen into various screen formats, and an OSD signal An OSD (on screen display) processor 37 for converting to a screen format, a controller 38 for controlling the video decoder 35, a video display processor 36, an OSD processor 37, etc., And a video mixing unit 39 for superimposing the image signal and the OSD signal and outputting the same to the display unit.

The composite video signal receiver 30 includes a VHF receiver 30a for receiving a broadcast channel transmitted from a broadcasting station, a video cable receiver 30b for receiving a composite video transmitted from a DVD / VCR, etc. Although not included, it includes a variety of composite video signal receiver, such as an S-video cable receiver for receiving signals from various digital devices.

As described above, the demultiplexer 32 classifies a composite video signal received from the outside into audio, video, and various data signals, and the data signal refers to an OSD signal.

The video decoder 35 is for decoding a video signal. The video decoder 35 also decodes the OSD signal in addition to the video signal.

The audio decoder 33 decodes the voice signal to be suitable for the voice output device 34 such as a speaker.

The video display processing unit 36 includes a double / wide processing unit 36a, a screen abduction unit 36b, and a screen scaling unit 36c.

Here, the double / wide processor 36a processes the signal so that the image signal received from the outside may be output to the display unit in the double screen format, or the signal may be output to the double wide screen format. In addition, the screen rotating unit 36b performs signal processing so that the double / wide processed video signal according to the control signal of the user can be output in a screen format rotated at a predetermined angle with respect to the virtual center axis on the screen. The signal is processed to rotate 90 ° as shown. In addition, the screen scaling unit 36c performs signal processing so that the rotated double / wide image signal can be output to the display unit in a screen format enlarged to a predetermined size.

In this way, the screen rotation unit 36b and the screen scaling unit 36c are provided so that the video signal can be output in a rotated and enlarged screen format.

Subsequently, the OSD processing section 37 includes an OSD generating section 37a, an OSD rotating section 37b, and an OSD scaling section 37c.

The OSD generator 37a is for outputting the OSD signal decoded by the video decoder 35 to the display by the user's control signal, and the OSD rotater 37b is synchronized with the screen rotater to the display unit. In order to rotate the output OSD signal, the OSD scaling unit 37c is for enlarging the OSD signal output to the display unit in synchronization with the screen scaling unit.

Accordingly, since the OSD signal can also be rotated and enlarged in synchronization with the image signal, it is possible to provide an OSD signal having a high resolution to the user.

Meanwhile, the controller 38 controls the video decoder 35, the video display processor 36, and the OSD processor 37 as described above according to the user's control signal, and the video mixer 39 is on the screen. The video signal and the OSD signal converted to a predetermined screen format are superimposed so that both the video signal and the OSD signal can be reproduced to the display unit.

The configuration of the present invention as described above will be more clearly understood with reference to FIGS. 4 to 6.

4 is a diagram illustrating a screen rotating unit of a double / wide image display apparatus according to the present invention, FIG. 5 is a diagram illustrating a screen scaling unit of a general double / wide image display apparatus, and FIG. FIG. 1 illustrates a screen format conversion of a double / wide video display device.

4 to 6 will be described with reference to the configuration of FIG. 3, the first decoded video signal is converted into a double / wide screen format by the double / wide processing unit 36a, and then rotated by the screen rotating unit 36b. Signal processing for conversion to the screen format is performed.

Such signal processing is made possible by the following substitution. For example, a screen 40 with four vertices a (-4, -3), b (-4, 3), c (4, 3), d (4, -3) is a '(3, -4). ), b '(3, 4), c' (-3, 4), d '(-3, -4) Each pixel that displays the screen so that it can be rotated to the screen 41 with four vertices The video signals scanned at are replaced with MP '(-j, i) from MP (i, j), respectively. Accordingly, the screen is rotated 90 ° clockwise. On the other hand, when the screen is to be rotated counterclockwise, the pixel values of the video signal may be replaced with MP (i, j) from MP (j, -i).

On the other hand, the rotated screen 41 is enlarged to a predetermined size, which is a screen having the size of wn_input_x_size and wn_input_y_size, respectively, with reference to the reference point O where wn_input_x_pos and wn_input_y_pos cross The format is enabled by converting the format into a screen format having sizes of wn_output_x_size and wn_output_y_size, respectively, around the reference point O 'where wn_output_x_pos and wn_output_y_pos intersect, as shown in FIG. That is, the screen can be enlarged as the image signal is scanned by the vertical and horizontal directions set starting from the reference point O '.

The screen converted into a predetermined format by the screen rotating unit 36b and the screen scaling unit 36c is shown in FIG. 6. As shown, the screen 61 of the initial input video signal has four vertices a, b, c and d, respectively, and the corresponding rotated screen 62 is a ', b', c 'and d, respectively. It has four vertices, and the enlarged screen 63 has four vertices a ", b", c ", and d", respectively.

In this case, the OSD signal should also be rotated and enlarged in synchronization with the video signal, and a description thereof will be omitted since it overlaps with the rotation and enlargement of the video signal.

Next, the display rotating unit of the present invention will be described with reference to FIG. FIG. 7A is a front view illustrating the display rotating unit of the double / wide television according to the present invention, and FIG. 7B is a side view illustrating the display rotating unit of the double / wide television. As shown, the double / wide television of the present invention includes a display rotator 73. Accordingly, the double / wide television 70 itself is rotatable at a predetermined angle, and the display 71 is also rotated.

The display rotating unit 73 can be rotated by a user's manual operation, as well as automatically rotated by a motor, etc. The display unit 71 further includes a position detecting sensor 72 of the display unit 71. The rotation can be detected, and the detected signal can be used as a signal for controlling the motor of the rotating unit 73.

Here, the position detecting sensor may be a sensor having a predetermined movable contact terminal which is movable in the direction of gravity, and other sensors capable of detecting a change in position may also be used.

On the other hand, the support unit 75 and the support for the support of the double / wide television 70 as described above may be further included.

Hereinafter, a control method of a double / wide television according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings. However, hereinafter, description of the screen enlargement by the screen scaling unit is omitted. This is because it has already been described above that the screen should be enlarged after the screen rotation to increase the resolution.

8 is a flowchart schematically illustrating a control method of a double / wide television according to the present invention. Referring to FIG. 8 with reference to the configuration of FIG. 3, first, a composite video signal is received from the outside through the composite video signal receiver 30 and a tuner 31 for tuning a channel of the received composite video signal (S80). )do.

The received composite video signal is separated into audio, video, and OSD signals by the demultiplexer 32, respectively (S81).

Accordingly, the audio signal is decoded by the audio decoder 33 (S82a), and output through a voice output device such as a speaker 34 (S82b), and the video signal and the OSD signal are decoded by the video decoder 35. (S83a, S83b).

Next, the input video signal is double / wide processed (S83b) by the double / wide processor 36a to convert the video signal into a double / wide screen format according to the setting state of the screen.

Then, it is determined whether or not the video signal is output in the rotated screen format (S83c). Accordingly, when a rotation command from the user or a signal from the position sensor is input to the controller 38, the input video signal is converted from MP (i, j) to MP (-j, i) as described with reference to FIG. Or convert from MP (i, j) to MP (j, -i) (S85). On the other hand, if a control signal is not input to the controller 38, the subsequent step is performed without conversion for the screen rotation.

On the other hand, during the processing of the video signal as described above, it is determined whether to output the OSD signal (S84b), and if the OSD signal output command is input, it is subsequently determined whether to convert the OSD signal in synchronization with the screen rotation command. In operation S84c, the OSD signal is converted (S85) according to the result or proceeds to the next step without conversion so that the OSD signal can be output. On the other hand, if the OSD signal output command is not input, only the video signal will be output to the display unit.

Subsequently, the video signal and the OSD signal are mixed with each other by the video mixing unit 39 (S86) and output to the display unit. That is, the display unit overlaps and outputs an image signal and an OSD signal synchronized therewith.

Next, the controller 38 determines whether a display unit rotation command is input (S87). If the display unit rotation command is input, the display unit is rotated by driving the rotating unit 73 of FIG. 7. Accordingly, the screen indicating the video signal and the OSD signal is positioned in the vertical direction of the display unit, so that the user can view the screen arranged up and down in a forward position without discomfort.

On the other hand, if the display unit rotation command is not input, the screen rotated without rotating the display unit will be reproduced. Accordingly, since the screen matches the gaze of the viewer lying down, the viewer can comfortably watch in the lying position.

As a result, according to the present invention as described above it is possible to comfortably watch a high-resolution screen in various postures according to the user's selection.

The double / wide television device and the control method according to the present invention have been described above. It will be understood by those skilled in the art that the technical features of the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. In particular, it will be apparent to those skilled in the art that the technical idea of the present invention as described above is not limited to a television device and can be applied to various video display devices similar thereto.

Therefore, the exemplary embodiments described above are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the following claims rather than the foregoing detailed description, and the meaning and scope of the claims are as follows. And all changes or modifications derived from the equivalent concept should be construed as being included in the scope of the present invention.

According to the double / wide image display device and a control method thereof according to the present invention as described above, it is possible to provide a high resolution double / wide screen to a viewer by increasing the utilization of the blanking area, and to allow viewing from various angles so that viewing is convenient. You can improve your sex.

Claims (10)

A display unit for outputting a video signal received from the outside; A double / wide processor for converting an image signal output to the display unit into a double / wide screen format; A screen rotating unit for converting the double / wide processed video signal into a screen format rotated based on a virtual center axis of the screen; A screen scaling unit for converting the rotated video signal into a screen format enlarged to a predetermined size; A control unit for controlling the screen format according to a user command; And And a display rotating unit for rotating the display unit. delete The method of claim 1, And the display rotating unit is any one of a manual type manually rotated by a user and an automatic type automatically rotated by a predetermined transmission means. The method of claim 1, The display unit of claim 2, wherein the display unit is equipped with a sensor for detecting rotation. The method of claim 1, The video signal includes an OSD signal, and further comprises an OSD processing unit for changing the format of the OSD signal in synchronization with the screen format change of the video signal. Receiving an image signal from an external source; Converting the video signal into a double / wide screen format; Converting the double / wide processed video signal into a rotated screen format based on a virtual center axis of the screen; Converting the rotated video signal into a screen format enlarged to a predetermined size; And Outputting the enlarged video signal to a display unit; And And rotating the display unit. delete The method of claim 6, The rotating of the display unit may be any one of a manual rotation to a user and a step of automatically rotating by a predetermined transmission means. The method of claim 8, The automatic rotating step is a step of automatically rotating by the detection signal of the sensor mounted on the display unit. The method of claim 6, And the video signal comprises an OSD signal, and changing the format of the OSD signal in synchronization with a change in the screen format of the video signal.

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