JP2006081223A - Display apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display apparatus for displaying broadcast receiving data of digital broadcasting so as to facilitate the viewing of the data. <P>SOLUTION: A receiving portion 11 for receiving the digital broadcasting and a control portion 18 to set a display area of broadcast receiving data received at the receiving portion 11 and to display the broadcast receiving data of the set display area on a screen are provided. When the control portion 18 displays character information contained in the broadcast receiving data on the screen and when the number of characters to be displayed is large with respect to the size of the display area of the character information, a display showing that character display which indicates that abbreviation in the display area of the character information has been made. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a display device, and more particularly to a display device capable of displaying broadcast reception data of a digital broadcast on a screen.

  BS digital broadcasting started in December 2000 and entered the digital broadcasting era. Preparations for terrestrial digital broadcasting are being made with the goal of starting several years later.

  In BS digital broadcasting, high-quality and wide television programs (digital high-definition broadcasting) are mainly broadcast. The digital high-definition broadcasting is composed of an image format having an effective scanning line number of 1080, an effective horizontal pixel number of 1920, an aspect ratio of 16: 9, and data including multimedia contents such as characters, graphics and images. Data broadcasting is also composed of the same video format.

  However, in order to faithfully reproduce digital high-definition broadcasts configured in such a video format with high-quality video, a display device equipped with a high-definition display corresponding to digital high-definition is required. Without such a digital high-definition display device, high-quality images cannot be enjoyed.

  Digital high-definition display devices are required to have a resolution that is at least twice as high in both horizontal and vertical resolution as compared to analog display devices with an aspect ratio of 4: 3 (number of effective scanning lines 480 and number of effective horizontal pixels 720). In addition, when viewing digital high-definition broadcasts, the larger the screen, the better the performance. Therefore, the development of large-scale and high-definition screens is being promoted in home display devices. . On the other hand, high-definition screens are also being developed in small-sized display devices such as in-vehicle and portable devices, but in the case of in-vehicle display devices, the screen size is usually about 5 to 7 inches, even if it is as large as 8 inches. Compared with a home-use display device, the screen size is overwhelmingly small, and the resolution is also low because the screen size is small.

  In this way, even in the future for the development of high-definition screens for small displays for in-car use and portable use, the screens are limited in terms of installation space restrictions and portability. The size cannot be expected to become extremely large from the current size.

  Therefore, since the screen size is small, even if broadcast reception data with a large amount of information such as digital broadcasting is displayed in the same manner as displayed on a large-screen display device for home use, characters and images are small. There is a problem that it is difficult to see only by being displayed, and the user cannot fully grasp the contents.

Means for solving the problems and their effects

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a display device that can display digital broadcast broadcast reception data so that it can be easily viewed.

  In order to achieve the above object, a display device (1) according to the present invention sets a display means for receiving a digital broadcast, a display area for broadcast reception data received by the receiving means, and the set display area Control means for displaying the broadcast reception data on the screen, and when the control means displays the character information included in the broadcast reception data on the screen, it displays the size of the display area of the character information. When the number of characters to be increased is large, a display indicating that the character display is omitted in the display area of the character information is performed.

  According to the display device (1), when the character information included in the broadcast reception data is displayed on the screen, when the number of characters to be displayed is larger than the size of the display area of the character information, the character information Since the display indicating that the character display is omitted in the display area is performed, the display indicating that the character display is omitted indicates that the character display is omitted in the display area of the character information. The user can easily grasp it.

  In the display device (2) according to the present invention, when the control unit displays character information included in the broadcast reception data on the screen in the display device (1), the display area of the character information is large. On the other hand, when the number of characters to be displayed is large, the display is performed by reducing the amount of information to be displayed.

  According to the display device (2), when the control unit displays character information included in the broadcast reception data on the screen, the number of characters to be displayed is larger than the size of the display area of the character information. Since the amount of information to be displayed is reduced, it is possible to prevent the characters of the character information from being displayed small and difficult to see, to improve visibility, and to make it easy to grasp the outline of the display contents Can be made.

  The display device (3) according to the present invention includes a display area setting means for the user to set the display area of the broadcast reception data in the display device (1) or (2), and the control The means switches the size of the display area of the character information in correspondence with the display area of the broadcast reception data set by the display area setting enable means.

  According to the display device (3), since the size of the display area of the character information is switched in correspondence with the display area of the broadcast reception data set by the display area setting enable means, for example, the broadcast reception When the data display area is made larger (or smaller), the character information display area becomes smaller (or larger), and the character information display area is enlarged or reduced step by step in correspondence with the broadcast reception data display area. The content you want to see can be displayed easily.

  In the display device (4) according to the present invention, when a selection instruction for the display area of the character information is detected in any one of the display devices (1) to (3), the control means Character information included in the indicated display area is displayed without being omitted.

  According to the display device (4), when the selection instruction for the display area of the character information is detected, the character information included in the display area instructed to be selected is displayed without being omitted. The user can grasp all the character information included in the displayed area.

  In the display device (5) according to the present invention, in the display device (4), the control means displays the character information included in the display area instructed to be selected without omission, and a predetermined time has elapsed. It is characterized in that the original display state is restored later.

  According to the display device (5), the character information included in the display area instructed to be selected is displayed without being omitted, and is returned to the original display state after a predetermined time has elapsed. The contents of character information can be grasped.

  Hereinafter, embodiments of a display device according to the present invention will be described with reference to the drawings. FIG. 1: has shown the block diagram which showed schematically the principal part of the vehicle-mounted display apparatus which concerns on embodiment.

  The in-vehicle display device 10 includes a receiving unit 11 having a digital broadcast receiving function, a reception data memory 12 for storing broadcast reception data received by the receiving unit 11, and a process for automatically setting a display area. A display region setting processing unit 13 to perform, a drawing processing unit 14 to perform drawing processing of the set display region, and a video random access memory (VRAM) that temporarily stores image data drawn by the drawing processing unit 14 15, a display 16 on which the image data read from the VRAM 15 is displayed, and controls these components, and also controls the output signals from the operation unit 17 such as a remote controller. And a control unit 18 that also performs processing for the process.

  The receiving unit 11 receives a digital broadcast radio wave via the antenna 11a, demodulates it into a digital signal, and after error correction, is necessary for decoding video or audio of the channel selected via the operation unit 17. It has a function as a digital tuner that extracts signals and decodes signals such as images and sounds digitized by the Moving Picture Coding Expert Group (MPEG) 2 method, and is built in the in-vehicle display device 10 Or it is designed to be connected externally.

  The display area setting processing unit 13 automatically sets the display area of the broadcast reception data read from the reception data memory 12 in accordance with the content contents and genre of the broadcast reception data. Using the original broadcast reception data of digital high-definition broadcasting with a large amount of information, the display area is automatically set according to the original display content, and it can be enlarged and displayed without degrading the image quality. A display area setting process is performed to display fine characters and the like of data broadcasting in a large and clear manner.

  In addition, the drawing processing unit 14 performs drawing processing of broadcast reception data in the display area set by the display area setting processing unit 13 and stores the drawn image data in the VRAM 15.

  The display 16 is composed of a liquid crystal panel having a size of about 6 to 8 inches, and a display having a resolution of about 110,000 to 390,000 pixels can be adopted and read from the VRAM 15. The displayed image data is displayed.

  The operation unit 17 includes an operation switch, a remote controller, or the like provided in the peripheral portion of the display display 16, and an operation signal input via the operation switch, the remote controller, or the like is input to the control unit 18. The control unit 18 performs processing according to the operation signal.

  FIG. 2 is a diagram for explaining a display area setting process performed by the display area setting processing unit 13. FIG. 3 is a diagram for explaining a display form on the display 16 of the broadcast program in which the display area is set, and FIG. 3A shows the program content of the original broadcast reception data. (B) and (c) show the display forms in the display area set for the original broadcast reception data.

  The original broadcast reception data of the digital high-definition broadcast shown in FIG. 3 (a) is composed of a video format having 1080 effective scanning lines, 1920 effective horizontal pixels, and an aspect ratio of 16: 9. The amount of information is about five times that of standard television broadcast (NTSC) data, and the amount of information received is overwhelmingly larger than the amount of information used for display on the display 16. It is in a state.

  Therefore, it is difficult to faithfully reproduce high-quality video on the display 16 whose resolution is not at a sufficient level, and by thinning out a considerable amount of information from the information amount of the original broadcast reception data, The entire display area of the original broadcast reception data is displayed.

  The display area (%) shown in FIG. 2 indicates the ratio of the display area actually displayed on the display 16 to the display area that can be displayed by the original broadcast reception data. When set to%, the entire display area that can be displayed with the original broadcast reception data is displayed on the display 16 as shown in FIG. 3B, and set to 20%. In this case, as shown in FIG. 3C, 20% of the display area that can be displayed with the original broadcast reception data is displayed on the display 16. In the present embodiment, the display area is set with reference to the state where the display area (%) is 100%.

  In the present embodiment, the display area to be set is indicated by (%), but may be indicated by an integer ratio or the like, and in short, may be set to an arbitrary value that does not cause image blur. That's fine.

  In addition, the thinning information amount indicates that the broadcast display data is displayed on the display display 16 in the set display area (%) based on the resolution of the display display 16 when the display area (%) is determined. This is the amount of information that is thinned out.

  As shown in FIG. 2, as the display area (%) is higher, the contents of a wider area of the original broadcast reception data must be displayed on the display 16 (see FIG. 3B). The amount is large, display objects such as people and characters are small, and the entire original content is displayed.

  On the other hand, the lower the display area (%), the smaller the display area for the original broadcast reception data (see FIG. 3 (c)). The size of the display object is relatively large as compared with the case where the display area (%) is high, and is displayed in an enlarged state. At this time, even if the image is enlarged, only the amount of thinning information is reduced, so that the image quality, the image, the character, the figure, etc. of the person can be clearly displayed without causing the image to be blurred. It is like that.

  That is, since the display area of the broadcast reception data is set in the display area setting unit 13, the display area is set to an easily viewable size according to the contents of the displayed program. Even if the screen size is small, it is easy to see a display image such as a video, and it is easy to grasp the contents such as characters. Moreover, since the amount of information of the broadcast reception data is large, even if it is enlarged and displayed by using the data, even small characters etc. are enlarged and clearly displayed without being degraded. It is possible.

  In digital broadcasting, data broadcasting is also performed as multimedia contents including characters, figures, images, etc. from which information desired to be obtained can be obtained immediately. Independent data services such as sports and weather forecasts, linked data services linked to broadcast programs, and interactive data services for enjoying shopping and the like are included.

  Data broadcasting information is described in a multimedia coding system such as BML (Broadcast Markup Language) developed for BS digital broadcasting data broadcasting or B-XML (Broadcast eXtensible Markup Language). The receiving unit 11 has a browser function for converting and displaying the multimedia encoded information.

  In the in-vehicle display device 10, when displaying data broadcasting, if the entire content of the original data broadcasting is displayed on the display screen 16 having a small screen size, small characters and the like are displayed considerably small. In addition, since the amount of information is thinned and displayed to display the whole, the characters are crushed and it is difficult to clearly display them, so the control unit 18 does not display small characters on the screen. In order to reduce the amount of information to be displayed, to make the screen structure clear, or to display small characters, processing for displaying a character storage icon or the like for separately displaying the contents is performed.

FIG. 4 is a diagram for explaining a display form of data broadcasting displayed on the display 16 in the in-vehicle display device according to the embodiment.
FIG. 4 (a) shows the entire display content of the original data broadcast. The video of the broadcast program (NEWS, SPORTS, ENTERTAINMENT) of the selected channel (BS NTV), character information of the program content, etc. Is displayed. If the entire display content of the original data broadcast is to be displayed on the display 16, the characters of the character information of the program content are displayed so as to be difficult to see.

  FIG. 4B shows a display example when setting is made so that character information of program contents including small characters is not displayed. When the displayed character size is smaller than the predetermined size and / or when the number of characters in the document is larger than the predetermined number, the character information can be set not to be displayed.

  FIG. 4B shows a display example when a character storage icon for informing the user that the character information is not displayed and displaying the character information in the portion where the character information is reduced in FIG. 4B is displayed. This is shown in 4 (c).

  In this case, when the character storage icon is selected through the operation unit 17 such as a touch panel or a remote controller, the character information that is not displayed is displayed on the screen in a state in which it is enlarged to a legible character size. ing.

  Next, processing operations performed by the control unit 18 in the in-vehicle display device 10 according to the embodiment will be described based on the flowchart shown in FIG. This processing operation is executed when a data broadcast program is selected.

  First, in step S1, it is determined whether or not a data broadcast program has been selected. If it is determined that a data broadcast program has not been selected, the processing is terminated. If it is determined that the program is selected, the process proceeds to step S2.

  In step S2, a process for setting the display area of the data broadcast program is performed, and the process proceeds to step S3. Here, the display area at the time of selecting a data broadcast program will be described assuming that the display area (%) is set to a reference value of 100% in order to display the entire contents.

  In step S3, it is determined whether or not the display character size is larger than the predetermined size. If it is determined that the display character size is larger than the predetermined size, the process proceeds to step S4. In step S4, processing for drawing characters is performed as usual. Then, the image data such as drawn characters is stored in the VRAM 15, and the process proceeds to step S8.

  On the other hand, if it is determined in step S3 that the displayed character size is not larger than the predetermined size, that is, not larger than the predetermined size, the process proceeds to step S5. In step S5, it is determined whether there is an alternative designation for displaying a small character of a predetermined size or less. If it is determined that there is an alternative designation, the process proceeds to step S6. In step S6, a small character of a predetermined size or smaller is selected. A process of drawing a character storage icon instead of drawing is performed, image data such as the drawn character storage icon is stored in the VRAM 15, and the process proceeds to step S8.

  On the other hand, if it is determined in step S5 that there is no alternative designation, the process proceeds to step S7, where a process for not drawing a small-size character is performed, and image data in which a small character is not drawn is stored in the VRAM 15, and the process goes to step S8. move on.

  In step S8, each image data is read from the VRAM 15 and output to the display 16 to perform processing for displaying an image in which small character information is not displayed or a character storage icon is displayed, and the processing is terminated. .

  In step S3, it is determined whether or not the display character size is larger than a predetermined size, but in another embodiment, the display is performed with respect to the size of the display area of the character information of the program content. It is determined whether or not the number of characters to be determined is large, and if the number of characters to be displayed in the character information display area is large, the processing after step S5 (on the other hand, the processing after step S4 when the number of characters is small). It can also be set as the structure which progresses to. In this case, in step S6, instead of drawing a character, a process of drawing a character storage icon indicating that character display is omitted may be performed, and in step S7, a process of not drawing a character may be performed. .

  Next, another processing operation performed by the control unit 18 in the in-vehicle display device 10 according to the embodiment will be described based on the flowchart shown in FIG. This processing operation is executed after the data broadcast program display processing shown in FIG.

  In step S11, it is determined whether or not the character storage icon displayed instead of displaying a small character of a predetermined size or less (or when the number of characters to be displayed is large with respect to the program content display area) has been selected. If it is determined that no character storage icon has been selected, the process ends. If it is determined in step S11 that a character storage icon has been selected, the process proceeds to step S12.

  In step S12, a process of displaying character information that has not been displayed by displaying the selected character storage icon is performed, and then the process proceeds to step S13. For example, the character information is displayed in an enlarged size so that the characters can be clearly seen.

  In step S13, it is determined whether or not a predetermined time has elapsed. If it is determined that the predetermined time has not elapsed, the process returns to step S13. If it is determined that the predetermined time has elapsed, the process proceeds to step S14, and the original character storage icon is displayed. The process of returning to the display state is performed, and then the process ends.

  According to the in-vehicle display device 10 according to the above embodiment, when displaying a data broadcast program, if character information such as a small character or a long sentence is included, the character information is not displayed. Alternatively, by displaying a character storage icon indicating that the character information is not displayed instead, the display content can be reduced and the visibility can be improved, and the driver is mounted when mounted on a vehicle or the like. It is possible to improve the safety during traveling, and to appropriately grasp the outline of the display contents. In addition, when the character storage icon is selected, the character information that has not been displayed is displayed with the characters enlarged, so that the character information is easy to see and the user can easily understand the contents. .

  In the above-described embodiment, the case where the display 16 whose resolution is not at a sufficient level has been described. However, the resolution of the display 16 is increased, and digital broadcasting is performed even on a display of about 6 to 8 inches. When the entire information can be displayed without thinning out the received data information, for example, the information can be enlarged and displayed without thinning out the information amount within a range where the image quality does not deteriorate. .

  In the above embodiment, the display area at the time of selecting a data broadcast program has been described for the case where the display area (%) is set to a reference value of 100% in order to display the entire contents. In another embodiment, a broadcast reception data display area may be set according to the user's preference.

  For example, FIG. 7 shows a display example of a setting screen for a display area of broadcast reception data displayed on the display 16. When a preset button (not shown) for reading the display area provided in the operation unit 17 is pressed, the display area stored in the preset memory (not shown) is read, as shown in FIG. The display area is displayed on the display 16. Then, when a user's favorite display area is selected by a key operation or the like of the operation unit 17 and an input signal for a confirmation operation is detected by the control unit 18, the display area setting processing unit 13 selects the selected display area. The setting process is performed.

  Although FIG. 7 shows a case where an image not including character information is displayed, it is needless to say that the image can be applied to the screen including character information shown in FIG. Corresponding to the display area, the size of the display area of the character information can be switched.

  In addition to the case where the display area is set to an appropriate value in advance so that the user can appropriately select as described above, the user himself / herself can also set the desired display area. It has become.

  As a method for registering the favorite display area, for example, when a user presses and holds a preset button provided on the operation unit 17, a display area registration screen is displayed on the display display 16 and provided on the operation unit 17. Use the up / down key or 10 key (both not shown) to set a display area within a preset range according to your preference and perform a registration operation to display your favorite display. An area can be registered.

  According to such a configuration, the display area (%) can be set according to his / her preference by a simple operation, the image can be displayed by changing the display area of the broadcast reception data, and the portion desired to be viewed is easy to see. Can be displayed. Further, after the display is set in the user's favorite display area (%) and displayed, the display area (%) set in advance may be returned and displayed after a predetermined time has elapsed. In this way, when returning to the display area (%) set in advance after a predetermined time and displaying it, the content portion to be viewed can be enlarged at any time as the program progresses, and the display content can be pinpointed. It can make it easier to grasp.

  In the above embodiment, the case where the present invention is applied to a vehicle-mounted display device has been described. However, the display device to be applied is not limited to a vehicle-mounted device, and may be a small display device capable of displaying a digital broadcast program. For example, the present invention can be applied to a portable information terminal, a portable digital television, and the like.

It is the block diagram which showed roughly the principal part of the vehicle-mounted display apparatus which concerns on embodiment of this invention. It is a figure for demonstrating the display area setting process which the display area setting process part in the vehicle-mounted display apparatus which concerns on embodiment performs. (A)-(c) is a figure for demonstrating the display form of the program content displayed on the display display in the vehicle-mounted display apparatus which concerns on embodiment. (A)-(c) is a figure for demonstrating the display form of the data broadcast displayed on the display display in the vehicle-mounted display apparatus which concerns on embodiment. It is the flowchart which showed the processing operation which the control part performs in the vehicle-mounted display apparatus which concerns on embodiment. It is the flowchart which showed another processing operation which the control part in the vehicle-mounted display apparatus which concerns on embodiment shows. It is the figure which showed the example of a display of the display area displayed on the display display in the vehicle-mounted display apparatus which concerns on embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 In-vehicle display apparatus 11 Reception part 12 Reception data memory 13 Display area setting process part 14 Drawing process part 15 VRAM
16 Display 17 Operation unit 18 Control unit

Claims (5)

Receiving means for receiving a digital broadcast;
Control means for setting a display area of the broadcast reception data received by the reception means and displaying the broadcast reception data of the set display area on a screen;
When the control means displays the character information included in the broadcast reception data on the screen, if the number of characters to be displayed is larger than the size of the character information display area, the character information is displayed in the character information display area. A display device that performs display indicating that display is omitted.   When displaying the character information included in the broadcast reception data on the screen when the control means has a large number of characters to be displayed with respect to the size of the display area of the character information, a display with a reduced amount of information to be displayed is displayed. The display device according to claim 1, wherein the display device is performed. A display area setting means for allowing a user to set a display area of the broadcast reception data;
The control means switches the size of the display area of the character information in correspondence with the display area of the broadcast reception data set by the display area setting enable means. Item 3. The display device according to Item 2.   2. When a selection instruction for a display area for the character information is detected, the control means displays the character information included in the display area for which the selection instruction has been made without being omitted. The display device according to any one of items 1 to 3.   5. The display according to claim 4, wherein the control means displays the character information included in the display area instructed to be selected without omission, and restores the original display state after a predetermined time has elapsed. apparatus.

Images