JP4795906B2 - Video display device and multi-screen display method - Google Patents

Description

  The present invention relates to a screen (hereinafter referred to as “TV screen”) based on a video signal input from a reception or external input terminal and a screen obtained by connecting to the Internet (hereinafter referred to as “browser screen”). The present invention relates to a video display device such as a television receiver that can display simultaneously, and a multi-screen display method for simultaneously displaying the television screen and the browser screen.

  Recently, there is a video display device such as a television receiver capable of simultaneously displaying a television screen and a browser screen. Conventionally, this type of video display device includes a device for simultaneously displaying a browser screen and a television screen on at least one screen, a detecting means for detecting that the Internet terminal is communicating, and a screen automatically during communication. Is provided with switching means for switching to a multi-screen mode (see, for example, Patent Document 1).

JP-A-10-42205 (Claim 1, [0035] to [0058], FIG. 1)

  Usually, the amount of content information provided on the Internet by a content provider such as an Internet service provider (ISP) or an electronic commerce site (EC site) is extremely large. For this reason, all information cannot be displayed on one screen of the browser screen, and the browser screen is scrolled up and down by operating a mouse, a cursor key, or the like.

  However, in the conventional video display device described above, the television screen and the browser screen are displayed on the display with the same aspect ratio as shown in FIGS. Therefore, as shown in FIG. 6 of Patent Document 1, when the aspect ratio of the display (eg, 3: 4) and the aspect ratio of the television screen (eg, 9:16) are different, the television screen In addition, both the browser screen and the browser screen are reduced and displayed, and an area where no image or character is displayed on the upper and lower sides of the display (hereinafter referred to as “non-display area”) is formed. In this case, even if the user scrolls the browser screen up and down by operating a mouse, cursor keys, or the like, nothing is displayed in the non-display area. That is, the non-display area is not utilized at all, and the amount of scrolling the browser screen up and down for the user is not different between the case of FIG. 5 and the case of FIG.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a video display device and a multi-screen display method capable of solving the above-described problems.

In order to solve the above-mentioned problem, a video display device according to the invention described in claim 1 relates to a video display device capable of simultaneously displaying a television screen and a browser screen obtained by connecting to the Internet on a display. The optimized character string related to the number of dots in the horizontal direction optimized for display included in the text data obtained by connecting to is searched, and if there is the optimized character string, the optimized character string First browser screen display area determining means for determining a browser screen display area based on the column, and when there is no optimized character string, image data is obtained for the data obtained by connecting to the Internet. If there is the image data, the browser screen display area is determined based on the aspect ratio of all or part of the image data. Second browser screen display area determining means, and when the optimized character string and the image data are not included in the data obtained by connecting to the Internet, the maximum number of characters per line of the text data is determined. And a third browser screen display area determining means for determining the browser screen display area based on the line having the maximum number of characters, the first browser screen display area determining means, and the second browser Using the screen display area determining means or the third browser screen display area determining means, the browser display area for displaying the browser screen is determined from the display areas of the display, and the display area of the display of, the television screen display area determination for determining the remaining display region TV screen display area to be displayed the TV screen Stage and, on the browser screen display area, the browser screen and displays throughout the display region, on the television screen display area, said maintaining its aspect ratio the television screen obtained from the video signal TV TV screen display means for displaying in conformity with the resolution of the screen display area is provided .

The invention of claim 2, wherein, it comprises a video display device relates to a video signal supply means for supplying a video signal related to the synthesized screen and the television screen and the browser screen on an external monitor of claim 1 It is characterized by.

According to a third aspect of the present invention, there is provided a multi-screen display method according to a multi-screen display method in a video display device capable of simultaneously displaying a TV screen and a browser screen obtained by connecting to the Internet on a display. By means of a first browser screen display area determining means provided in the device, an optimized character string related to the number of dots in the horizontal direction optimized for display included in the text data obtained by connecting to the Internet is searched, If there is the optimized character string, a first step of determining a browser screen display area based on the optimized character string and a second browser screen display area determining means provided in the video display device If the optimized character string does not exist, the data obtained by connecting to the Internet is checked for image data. When there is the image data, a second step of determining the browser screen display area based on an aspect ratio of all or a part of the image data, and a third step provided in the video display device When the optimized character string and the image data are not included in the data obtained by connecting to the Internet by the browser screen display area determining means, the maximum number of characters per line of the text data is obtained, and the maximum A third step of determining the browser screen display area based on a line having the number of characters, and the first step and the second step by the television screen display area determining means provided in the video display device. , or by using the third step, among the display areas of the display, to determine the browser screen display area to be displayed the browser screen With, among the display areas of the display, a television screen display area determining step of determining the remaining display region TV screen display area to be displayed the TV screen, the TV screen display means for the image display device is provided, wherein The browser screen display area displays the browser screen over the entire display area, and the television screen display area maintains the aspect ratio of the television screen obtained from the video signal in the television screen display area. And a TV screen display step for displaying in conformity with the resolution.

  According to the present invention, a homepage can be browsed with a small scroll amount in a video display device capable of simultaneously displaying a television screen and a browser screen. Therefore, good operability can be obtained.

Embodiment 1 FIG.
FIG. 1 is a block diagram showing a partial configuration of the video display apparatus according to Embodiment 1 of the present invention. The video display apparatus according to the first embodiment is connected to an antenna 1 and includes a channel selection unit 2, a video processing unit 3, a communication unit 4, a browser signal processing unit 5, a two-screen composition unit 6, and a display unit. 7, a control unit 8, an operation unit 9, and a storage unit 10.

  Based on the control signal supplied from the control unit 8, the channel selection unit 2 broadcasts the channel selected by the operator by operating the operation unit 9 from among the multiple-channel broadcast signals received by the antenna 1. The signal is demodulated and error corrected, and the video signal VT is output. Here, the various broadcast signals include, for example, broadcast signals of terrestrial analog broadcast, terrestrial digital broadcast, BS analog broadcast, BS digital broadcast, CS analog broadcast, and CS digital broadcast.

  The video processing unit 3 performs video processing such as IP (Interlace to Progressive) conversion, scaling, and digital RGB conversion on the video signal VT supplied from the channel selection unit 2 based on the control signal supplied from the control unit 8. And output as a video signal VD. The IP conversion is a process of converting an interlaced video signal into a progressive scanning video signal. Scaling is a process of adjusting the display position and size of the video signal when the resolution of the video represented by the video signal is different from the resolution of the video displayed on the display unit 7. The digital RGB conversion is a process of converting an analog video signal into a digital RGB / video signal composed of a digital red signal, a digital green signal, and a digital blue signal.

  The communication unit 4 includes a modem, a terminal adapter, or a router. The communication unit 4 is connected to a server (not shown) such as an ISP or EC site via a network (not shown) and outputs a browser signal BS related to the content provided by the content provider. The browser signal processing unit 5 processes the browser signal BS supplied from the communication unit 4 based on the control signal supplied from the control unit 8 and outputs browser data BD including text data, image data, and the like.

  The two-screen composition unit 6 has a display memory for storing several frames of the video signal VD supplied from the video processing unit 3 and the browser data BD supplied from the browser signal processing unit 5. The two-screen composition unit 6 processes the video signal VD and the browser data BD using the display memory based on the control signal supplied from the control unit 8, and includes a television screen and a browser screen. A video signal VP obtained by synthesizing the screen is generated.

  The display unit 7 is, for example, a display 11 such as a CRT display, a liquid crystal display (LCD), an electroluminescence (EL) display, or a plasma display panel (PDP) (see FIG. 2). have. The control unit 8 includes a central processing unit (CPU), a digital signal processor (DSP), a sequencer, and the like, and controls each unit of the video display device by executing various programs stored in the storage unit 10. To do.

  The operation unit 9 includes a remote control, a remote control reception unit, and a main body operation unit. The remote control has the same power button, channel button, input switching button, volume increase button, volume decrease button, registration button, up cursor button, down cursor button, left cursor button as the remote control used in a general television receiver. Various buttons such as a right cursor button and an enter button are provided. The remote control receiving unit receives an infrared pulse control signal from the remote control, converts it into an electrical signal control signal, and supplies it to the control unit 8. For example, the main body operation unit is provided at the lower right portion of the video display device main body, and includes a power button, an input switching button, a channel increase button, a channel decrease button, a volume increase button, a volume decrease button, a registration button, an up cursor button, and a down cursor. It consists of various buttons such as a button, a left cursor button, a right cursor button, and an enter button. The use and function of each button are the same as the use and function of the button having the same name constituting the remote control. The main body operation unit supplies a control signal corresponding to the button operated by the operator to the control unit 8.

  The storage unit 10 includes a RAM, a ROM, or a semiconductor memory such as a flash memory, and stores various programs executed by the control unit 8, data input by the operator operating the operation unit 9, and the like. The storage unit 10 is used for work when the control unit 8 executes various programs. Note that various programs and some data stored in the storage unit 10 may be stored in a memory provided in the CPU constituting the control unit 8.

  The video display device is provided with various components related to audio in addition to the components related to the video described above, but these components are not directly related to the present invention. The description is omitted.

  Next, the operation of the video display apparatus having the above configuration will be described. First, as a premise, as shown in FIG. 2, the display 11 constituting the display unit 7 has a resolution of full HD (horizontal 1920 dots, vertical 1080 dots), a TV screen (TV screen display area) 11a and a browser. The screen (browser screen display area) 11b is assumed to have a boundary at the center in the horizontal direction of the display area of the display 11. Therefore, both the television screen 11a and the browser screen 11b have a resolution of 960 dots horizontally and 1080 dots vertically.

  In such a state, it is assumed that one of the operators (first grader, boy) operates a channel button on the remote controller constituting the operation unit 9 to select a desired channel. Thereby, the remote control receiving unit receives the control signal of the infrared pulse from the remote control, converts it into the control signal of the electric signal, and supplies it to the control unit 8. Therefore, the control unit 8 supplies the channel selection unit 2 with a control signal corresponding to the channel selected by one of the operators based on the control signal from the remote control reception unit.

  When a control signal corresponding to the channel selected by one of the operators is supplied from the control unit 8, the channel selection unit 2 selects one of the operators from the broadcast signals of the plurality of channels received by the antenna 1. 9 is used to perform demodulation, error correction, and the like on the broadcast signal of the channel selected by operating 9, and output the video signal VT. Now, one of the operators can watch a channel button (for example, a channel button) compatible with Kanto TV on the remote control in order to watch an animated program called “Here Yaita Koen-mae” on Kanto Television (every Sunday at 7:00 pm). “8”) is operated. Therefore, the channel selection unit 2 selects the broadcast signal of the Kanto TV channel and outputs the corresponding video signal VT.

  When the video signal VT is supplied from the channel selection unit 2, the video processing unit 3 performs various types of video processing such as scaling on the video signal VT and outputs it as a video signal VD. If the broadcast signal of the Kanto TV channel is a terrestrial analog broadcast signal, the resolution of the video represented by the video signal VT corresponding to the terrestrial analog broadcast signal is normally 640 dots wide, The length is 480 dots. Accordingly, the video processing unit 3 applies the video signal VT having a resolution of 640 dots horizontally and 480 dots vertically to the television screen 11a of the display 11 constituting the display unit 7 (resolution: 960 dots horizontally, 1080 dots vertically). The display position and size of the video are adjusted so as to correspond. That is, the expansion process is performed so that the resolution is 960 dots wide and 720 dots high.

  On the other hand, if the broadcast signal of the Kanto TV channel is a terrestrial digital broadcast signal, the resolution of the video represented by the video signal VT corresponding to the terrestrial digital broadcast signal is full HD (horizontal 1920). Some dots are vertical (1080 dots). Therefore, when the resolution of the video signal VT is 1920 dots wide and 1080 dots vertical, the video processing unit 3 performs the TV screen 11a (resolution: resolution :) of the display 11 constituting the display unit 7 with respect to the video signal VT. The display position and size of the video are adjusted so as to correspond to 960 dots in the horizontal direction and 1080 dots in the vertical direction. That is, the contraction process is performed so that the resolution is 960 dots wide and 540 dots high. In this way, the video processing unit 3 does not change the aspect ratio according to the broadcast form of the broadcast signal of the selected channel, and the horizontal direction is the resolution of the television screen 11a of the display 11 (in this case, 960). Scaling processing is performed so as to fit the dot.

  In addition, one of the operators (a member of society, a man, or one father of the operator) operates a remote control that constitutes the operation unit 9 in order to browse the official homepage of a general home appliance manufacturer called Fault Co., Ltd. To start the browser. Thereby, the remote control receiving unit receives the control signal of the infrared pulse from the remote control, converts it into the control signal of the electric signal, and supplies it to the control unit 8. Therefore, since the control unit 8 instructs the browser signal processing unit 5 to start the browser based on the control signal from the remote control receiving unit, the browser signal processing unit 5 starts the browser.

  Next, another one of the operators operates the remote controller and inputs the URL (Uniform Resource Locator) address of the official homepage of the fault corporation in order to browse the official homepage of the fault corporation. As a result, the browser signal processing unit 5 (strictly, the activated browser) is connected to the server of Fault Co., Ltd. (not shown) via the communication unit 4 and the network (not shown) and supplied from the communication unit 4. The browser signal BS is processed to output browser data BD including text data, image data, etc. relating to the official homepage of the above-mentioned fault corporation. In this case, the browser signal processing unit 5 determines the browser screen 11b (resolution: horizontal 960 dots, vertical 1080) of the display 11 constituting the display unit 7 for the browser data BD based on the control signal supplied from the control unit 8. The display position and size of the video are adjusted so as to correspond to the dot.

  As a result, the two-screen composition unit 6 performs the video signal VD supplied from the video processing unit 3 and the browser data BD supplied from the browser signal processing unit 5 based on the control signal supplied from the control unit 8. Then, processing is performed using a built-in display memory to generate a video signal VP that is a composite of two screens including a television screen and a browser screen, and supplies the video signal VP to the display unit 7.

  FIG. 3 is a diagram illustrating an example of the television screen 11 a and the browser screen 11 b displayed on the display 11 constituting the display unit 7. On the TV screen 11a shown in FIG. 3, one scene (resolution: horizontal 640 dots, vertical 480 dots) of the animation program “Kokoya Itami Koen-mae” on Kanto TV has a resolution of 960 dots wide and 720 dots high. Is displayed after being stretched. Accordingly, there are non-display areas 12a and 12b above and below the television screen 11a. On the other hand, on the browser screen 11b shown in FIG. 3, the official homepage of Fault Inc. is displayed over the entire display area. That is, there is no non-display area on the browser screen 11b.

  Thus, according to the first embodiment of the present invention, when two screens of the television screen 11a and the browser screen 11b are simultaneously displayed on one display 11, the television screen 11a has the selected channel. In accordance with the broadcast form of the broadcast signal, the display is displayed by scaling processing so that the horizontal direction matches the resolution of the television screen 11a of the display 11 without changing the aspect ratio. On the other hand, since it is not necessary to maintain the aspect ratio on the browser screen 11b, the screen is displayed over the entire display area. As a result, since the amount of information displayed on the browser screen 11b at a time is larger than that of the conventional one (see Patent Document 1), the operator can browse the homepage with a small scroll amount, and the operability is good. .

  FIG. 4 shows a television screen 21a and a browser assumed to be displayed on the display 21 by the conventional video display device described in Patent Document 1 described above for comparison with the video display device according to the first embodiment. It is a figure which shows an example of the screen 21b. In the browser screen 21b shown in FIG. 4, similarly to the non-display areas 22a and 22b existing above and below the television screen 21a, the non-display areas 23a and 23b exist above and below and are not utilized at all. Further, the browser screen 21b shown in FIG. 4 has a larger amount of scrolling up and down compared to the browser screen 11b shown in FIG. Moreover, in the browser screen 21b shown in FIG. 4, since the top and bottom are reduced also in the display area, it is difficult to see particularly fine characters.

Embodiment 2. FIG.
In the first embodiment described above, the boundary between the television screen 11a and the browser screen 11b is set at the center in the horizontal direction of the display area of the display 11, and the display ratio of the two screens is given priority over the television screen 11a over the browser screen 11b. An example of setting is shown. However, it is not limited to this. For example, the display ratio of two screens may be set by giving priority to the browser screen over the television screen by the following procedure.

(1) In the text data constituting the browser data BD output from the browser signal processing unit 5, the number of dots in the horizontal direction is optimized, for example, 1024 dots, 768 dots, or 640 dots. There may be a notice (optimized character string) to that effect. Therefore, the text data is searched for whether or not there is the above note, and if there is, the width of the browser screen is determined according to the number of optimized dots.
(2) As a result of the character search, if there is no note, the browser data BD output from the browser signal processing unit 5 is searched for whether there is image data. Determines the width of the browser screen so that all or part of the image data has an aspect ratio that is easy to see.

(3) If there is no precautionary statement and there is no image data, the maximum number of characters per line of the text data is obtained, and the width of the browser screen is set so that the line having the maximum number of characters is easy to see. decide.
(4) The remaining display area of the display 11 excluding the horizontal width of the browser screen determined by the procedure shown in the above (1) to (3) is set as a television screen.
(5) In the video processing unit 3, the horizontal direction of the TV screen set in (4) without changing the aspect ratio of the video signal VT in accordance with the broadcast form of the broadcast signal of the selected channel. Displayed after scaling processing to match the resolution.

  As described above, according to the second embodiment of the present invention, in addition to the effect obtained by the first embodiment described above, there is an effect that the browser screen becomes easier to see.

Embodiment 3 FIG.
In each of the above-described embodiments, the example in which the two screens of the television screen and the browser screen are displayed on the built-in display has been described. For example, the video signal VP output from the two-screen composition unit 6 may be supplied to an external monitor. In this case, if the video display apparatus according to the third embodiment and the external monitor can be connected by DVI (Digital Visual Interface) which is one type of digital transmission interface for digital display, the external monitor Data regarding resolution is supplied. Accordingly, the video processing unit 3, the browser signal processing unit 5, the two-screen composition unit 6, and the control unit 8 can execute respective processes based on the data relating to the resolution supplied from the external monitor.

  Thus, according to the third embodiment of the present invention, in addition to the effects obtained by the first embodiment described above, the television screen and browser screen optimized not only for the built-in display 11 but also for the external monitor. It is possible to display two screens consisting of the above, and there is an effect that versatility is improved.

Embodiment 4 FIG.
In each of the above-described embodiments, an example is shown in which the video signal VD obtained by processing the broadcast signal of the channel received by the antenna 1 and selected by the channel selection unit 2 is displayed on the television screen 11a. Not. Recent video display devices have multiple external input terminals so that various external devices such as various recording / playback devices or composite devices or tuners having the functions of these multiple recording / playback devices can be connected. There is something that is. Examples of the recording / playback device include a DVD player, a hard disk recorder (HDD), a video tape recorder (VTR), and a video camera. Therefore, the television screen 11a may be configured to display a video signal VD output from the external device and processed from the video signal input from the external input terminal. If comprised in this way, versatility will improve.

Embodiment 5 FIG.
In each of the above-described embodiments, when the non-display areas 12a and 12b exist on the television screen 11a, no particular consideration is given to using the non-display areas 12a and 12b, but the present invention is not limited to this. For example, you may comprise so that the text data or a part of image data which comprises the browser screen 11b may be displayed on either or both of the non-display area | regions 12a or 12b. If comprised in this way, a display area can be utilized more effectively.

Embodiment 6 FIG.
In each of the above-described embodiments, an example is shown in which two screens of one television screen and one browser screen are displayed on the display constituting the display unit 7, but the present invention is not limited to this. For example, as shown in FIG. 5, the display area of the display constituting the display unit 7 is divided into right and left, and two television screens 11 a 1 and 11 a 2 are displayed in the left display area, and 1 in the right display area. You may comprise so that the one browser screen 11b may be displayed. Further, as shown in FIG. 6, the display area of the display unit 7 is divided into four parts vertically and horizontally, and two television screens 11 a 1 and 11 a 2 are displayed in the two left display areas, respectively, One browser screen 11b1 may be displayed in the display area, and one television screen 11b2 may be displayed in the lower right display area. The division number and division ratio of the display area, the display number and the display position of each of the television screen and the browser screen may be arbitrarily settable.

As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to these embodiments, and the design can be changed without departing from the scope of the present invention. Is included in the present invention.
In addition, each of the above-described embodiments can divert each other's technology as long as there is no particular contradiction or problem in its purpose and configuration.

It is a block diagram which shows the structure of a part of video display apparatus concerning Embodiment 1 of this invention. It is a conceptual diagram which shows an example of the display ratio of the television screen and browser screen which are displayed on the display of the display part which comprises the video display apparatus shown in FIG. It is a figure which shows an example of the television screen and browser screen which are displayed on the display of the display part which comprises the video display apparatus shown in FIG. It is a figure for demonstrating the disadvantage of a prior art. It is a conceptual diagram which shows an example of the display ratio of the television screen displayed on the display of the display part which comprises the video display apparatus concerning Embodiment 6 of this invention, and a browser screen. It is a conceptual diagram which shows the other example of the display ratio of the television screen displayed on the display of the display part which comprises the video display apparatus concerning Embodiment 6 of this invention, and a browser screen.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Antenna 2 Channel selection part 3 Video | video processing part 4 Communication part 5 Browser signal processing part 6 Two screen composition part 7 Display part 8 Control part 9 Operation part 10 Storage part 11,21 Display 11a, 11a1,11a2,11b2,21a Television screen 11b , 11b1, 21b Browser screen 12a, 12b, 22a, 22b, 23a, 23b No display area

Claims (3)

A video display device capable of simultaneously displaying a TV screen and a browser screen obtained by connecting to the Internet on a display,
The optimized character string related to the number of dots in the horizontal direction optimized for display included in the text data obtained by connecting to the Internet is searched, and if there is the optimized character string, the optimum character string is found. First browser screen display area determining means for determining a browser screen display area based on the character string;
If there is no optimized character string, the data obtained by connecting to the Internet is searched for image data. If there is the image data, all or part of the data is obtained. Second browser screen display area determining means for determining the browser screen display area based on an aspect ratio of the image data;
When the optimized character string and the image data are not included in the data obtained by connecting to the Internet, the maximum number of characters per line of the text data is obtained, based on the line having the maximum number of characters, Third browser screen display area determining means for determining the browser screen display area;
Using the first browser screen display area determining means, the second browser screen display area determining means, or the third browser screen display area determining means , the browser screen is displayed among the display areas of the display. A TV screen display area determining means for determining a browser screen display area to be determined, and determining a remaining display area of the display area of the display as a TV screen display area to display the TV screen ;
The browser screen display area displays the browser screen over the entire display area, and the television screen display area maintains the aspect ratio of the television screen obtained from a video signal in the television screen display area. A video screen display device comprising: a TV screen display unit adapted to display in accordance with the resolution of the video. The video display apparatus according to claim 1, further comprising a video signal supply unit that supplies a video signal related to a screen obtained by combining the television screen and the browser screen to an external monitor. A multi-screen display method in a video display device capable of simultaneously displaying a TV screen and a browser screen obtained by connecting to the Internet on a display,
An optimized character string related to the number of horizontal dots optimized for display included in the text data obtained by connecting to the Internet by the first browser screen display area determining means provided in the video display device. If the optimized character string is found by searching, a first step of determining a browser screen display area based on the optimized character string;
If there is no optimized character string, the second browser screen display area determining means provided in the video display device searches for data obtained by connecting to the Internet whether there is image data. And when there is the image data, a second step of determining the browser screen display area based on the aspect ratio of all or part of the image data;
When the optimized character string and the image data are not included in the data obtained by connecting to the Internet by the third browser screen display area determining means provided in the video display device, one line of the text data And determining a browser screen display area based on a line having the maximum number of characters, and determining a maximum number of characters per hit,
Using the first step, the second step, or the third step, the television screen display region determination means provided in the video display device displays the browser screen in the display region of the display. A TV screen display area determining step of determining a browser screen display area to be determined, and determining a remaining display area of the display area of the display as a TV screen display area to display the TV screen ;
The TV screen display means provided in the video display device displays the browser screen over the entire display area in the browser screen display area, and the TV screen display area includes the TV screen obtained from a video signal. A two-screen display method comprising: a television screen display step of displaying the screen image in a manner adapted to the resolution of the television screen display area while maintaining the aspect ratio.

Images