JP6624528B2 - Display control device, display control system, method and program - Google Patents

Description

  The present invention relates to a display control device, a display control system, a method, and a program.

  In recent years, with the advancement of information communication, a technique for displaying a plurality of pieces of information on one display has been put to practical use. Along with this, the types of information displayed on the display have been diversified.

  For example, Japanese Patent No. 4827992 (Patent Document 1) discloses a technique in which an image is reduced and displayed in a display, and information is scrolled and displayed in a blank space generated by the reduction. According to Patent Literature 1, by displaying information while scrolling it, the amount of information to be displayed can be increased and the visibility of the information can be improved.

  However, in Patent Literature 1, the system configuration is complicated and the text of the information to be displayed is displayed as it is. Was. Therefore, a technology for displaying information more efficiently has been required.

  The present invention has been made in view of the above-mentioned problems in the related art, and has as its object to provide a display control device, a display control system, a method, and a program for efficiently displaying information.

That is, according to the present invention, there is provided a display control device for controlling the display of a telop by a display means, wherein the text data to be displayed as the telop is converted into raster format image data one character at a time , Means for rearranging the image files into one image file, and reading the converted image file as a range to be displayed on the display unit by the height of the one character, and outputting the read image signal as a display control signal while expanding the read range. Means for converting the text data into one image file, arranging the image data obtained by converting the text data character by character in accordance with the matrix size of a frame buffer according to the number of characters of the text data. And place the converted image file in the folder Shape of the matrix size of the image data is generated as the size of the integral submultiple of the matrix size of the frame buffer, the display controller is provided.

  As described above, according to the present invention, a display control device, a display control system, a method, and a program for efficiently displaying information are provided.

FIG. 1 is a diagram illustrating a schematic configuration of hardware of an entire display control system according to an embodiment of the present invention. FIG. 2 is a diagram illustrating a hardware configuration included in the display control device according to the embodiment. The figure which shows the example of various information displayed on a display. FIG. 2 is a functional block diagram illustrating a display control device according to the embodiment. The figure which shows the example which makes the text of a telop into an image. The figure which shows the example which displays a telop on a display. 5 is a flowchart illustrating processing executed by the display control device according to the embodiment.

  Hereinafter, the present invention will be described with reference to embodiments, but the present invention is not limited to the embodiments described below. In each of the drawings referred to below, the same reference numerals are used for common elements, and the description thereof will be omitted as appropriate.

  FIG. 1 is a diagram illustrating a schematic configuration of hardware of the entire display control system 1 according to the embodiment of the present invention. The display control system 1 of the present embodiment includes a display control device 10 and a display 20. The display control device 10 and the display 20 are connected by wire communication or wireless communication. As an example, terminals of each device are connected via a cable. The display control system 1 may be configured to include a television tuner 30 having an antenna, a personal computer terminal 40, a smartphone terminal 50, a network 70 connected to the server device 60, and the like.

  The television tuner 30 can be implemented as an existing box-type tuner, or can be configured as a so-called USB dongle connected to the display control device 10 via an interface such as a USB. Thereby, the system configuration can be simplified. The server device 60 receives a character string to be displayed as a telop from the personal computer terminal 40, the smart phone terminal 50, or the like, and sends data to be displayed as a telop to the display control device 10 in accordance with the display timing.

  The display control device 10 is a device that relays communication between the display 20 and various devices such as the TV tuner 30, the personal computer terminal 40, and the smart phone terminal 50 included in the display control system 1. The display control device 10 controls the display on the display 20 by outputting as a display control signal various information such as a video, a still image output from various devices, and text to be displayed as a telop sent from the server device 60.

  The display 20 is a device that performs screen display based on an output signal from the display control device 10. In FIG. 1, as an example, a case where one display 20 is included in the display control system 1 is illustrated. However, the number of displays 20 is not limited, and the display control system 1 includes a plurality of displays 20. You may.

  So far, the system configuration of the present embodiment has been described. According to the above configuration, the display control device 10 and various devices that provide information to be displayed can be simultaneously controlled, so that the system configuration can be simplified. In addition, the display control device 10 can access the server device 60 to obtain a telop text, and can also display the telop text on the display 20.

  Next, the hardware configuration of the display control device 10 will be described. FIG. 2 is a diagram illustrating a hardware configuration included in the display control device 10 of the present embodiment. The display control device 10 includes a CPU 201, a memory 202, a GPU 203, an input / output I / F 204, and an operation unit 205, and each piece of hardware is connected via a bus.

  The CPU 201 is a device that executes a program for controlling the operation of the display control device 10 and performs a predetermined process. The memory 202 is a storage device for temporarily or permanently storing various information. The memory 202 may be a volatile storage device, such as a RAM, for providing an execution space for a program executed by the CPU 201. In this case, the memory 202 is used for storing and expanding programs and data. You. The memory 202 may be a non-volatile rewritable storage device such as a ROM for storing programs executed by the CPU 201, firmware, and the like. Further, the memory 202 may be configured by a storage device connected to the outside of the display control device 10.

  A GPU (Graphics Processing Unit) 203 is a processing device that executes a graphic operation. The GPU 203 typically has an arithmetic function corresponding to an API (Application Programming Interface) such as OpenGL, and can realize a high-speed image processing operation. There is no limitation on the operating system (OS) executed by the display control device 10, but UNIX (registered trademark), LINUX (registered trademark), OPENBSD, Raspbian, WINDOWS (registered trademark), and the like can be used. It is not limited. In addition, in that the OS can be started with a limited number of desired functions, Raspbian is easy to use, and hardware resources and software resources required for graphic processing can be reduced. As a result, telop display control In this case, it is possible to efficiently improve the jerky movement caused by the OS interrupt.

  The input / output I / F 204 is a device for connecting the display control device 10 to various other devices and exchanging information such as video, still images, and text. The input / output I / F 204 can be, for example, a NIC (Network Interface Card), and enables communication with other devices via the network 70. Communication via the network 70 may be either wired communication or wireless communication, and various data can be transmitted and received using a predetermined communication protocol such as TCP / IP. Further, the input / output I / F 204 may be an interface such as a USB, for example, and can also receive input of video information output by the TV tuner 30 configured as a USB dongle. Further, the input / output I / F 204 may be an interface that outputs a signal converted into a format corresponding to the display 20, and an example is HDMI (High-Definition Multimedia Interface, registered trademark).

  The operation unit 205 is a device for operating the display control device 10, and includes, for example, various buttons, switches, and a touch panel display. The operation of the display control device 10 is not limited to the operation by the operation unit 205, and may be remotely operated from various terminals via the network 70, or may be operated by infrared communication using a device such as a remote controller. . In still another embodiment, a program such as an application can be installed in the smartphone terminal 50, and the display control device 10, the display 20, and the like can be controlled from the application. In still another embodiment, a telop character can be input to the server device 60 from the smart phone terminal 50 and displayed.

  The hardware configuration included in the display control device 10 according to the present embodiment has been described above. Here, the display on the display 20 of the present embodiment will be described with reference to FIG. FIG. 3 is a diagram illustrating an example of various information displayed on the display 20.

  FIG. 3A illustrates an example in which an image is displayed on the display 20. For example, an image broadcast on a television can be displayed. By the way, the display 20 is not only installed and used personally, but may be installed in a waiting space such as a hospital or a bank, for example. In such a case, displaying the information such as the waiting time and the call number on the display 20 allows the user to grasp the time and order in which the user is called while watching the video. Can be improved.

  When such information is displayed, it is preferable to display the information in an area different from the image in the display 20 in order to improve the visibility of the information. On the other hand, when an area different from the image is provided, the image is reduced from the entire display area of the display 20 and displayed. As shown in FIG. It becomes. Therefore, it is preferable to effectively utilize the generated space. An example of this utilization method is to display an advertisement.

  Hereinafter, a case where the entire display area of the display 20 is divided as illustrated in FIG. 3B will be described as an example. Each region in FIG. 3B is referred to as a video display region, an information display region, and a telop display region, respectively, but is not limited to the embodiment. The manner in which the display 20 is divided is not limited to that shown in FIG. 3B, and the display 20 can be divided into arbitrary areas.

  The video display area is an area for displaying a video image output by the TV tuner 30. The image displayed in the video display area is not limited to the image output by the TV tuner 30, and may be an image provided from the personal computer terminal 40, the smart phone terminal 50, or the server device 60.

  The information display area is an area for displaying various information images such as a waiting time and a call number, as in the example described above. The information displayed in the information display area is, for example, dynamic information, and may be provided from the personal computer terminal 40, the smart phone terminal 50, the server device 60, or the like via the network 70.

  The telop display area is an area for displaying static information such as a text advertisement, and displays information provided from the personal computer terminal 40, the smart phone terminal 50, the server device 60, and the like via the network 70. . In the present embodiment, as will be described later, by displaying the image converted to the raster format, the processing by the GPU 203 can be easily performed, and thus the telop can be smoothly displayed without jerking.

  In the following description, as shown in FIG. 3 (b), an image of a television broadcast is displayed in an image display area, call number information is displayed in an information display area, and an image of advertisement information is displayed in a telop display area. The case of displaying will be described as an example. FIG. 3C shows an example of the display 20 displaying such various kinds of information. In the example shown in FIG. 3C, various information is displayed in each area. Further, the advertisement information displayed in the telop display area may be scroll-displayed according to the content, the number of characters, and the like.

  Next, functional units executed by each hardware in the present embodiment will be described with reference to FIG. FIG. 4 is a functional block diagram of the display control device 10 according to the present embodiment.

  The display control device 10 receives an input of a video signal output by the television tuner 30 from the tuner connection port 11, and processes the video signal with the decoder 12. Further, the tuner connection port 11 may be configured to be controllable by the controller 16. The decoder 12 converts the video signal into an audio signal, a text signal, an image signal, and the like, and outputs it manually. In the CHANNEL block, a channel of a video signal can be selected. In this case, the input / output I / F 204 converts the received video information so as to be compatible with the OS used by the display control device 10.

  The display control device 10 is connected to the network 70 via the NIC 15. A personal computer terminal 40, a smart phone terminal 50, a server device 60, and the like are connected to the network 70. The various devices manage various information displayed on the display 20 and provide the information to the display control device 10. Also, text data to be displayed as a telop is input from the server device 60 to the NIC 15 and the controller 16 via the network 70, and controls the timing at which the telop is to be displayed, in addition to securing the video information area and the telop area. .

  The telop imaging block 17 is a conversion unit having a function of imaging information to be displayed in the telop display area among signals input to the display control device 10. Here, image conversion of a telop not only converts text data into a raster format, but also converts generated image data into a size or format suitable for a frame buffer. This makes it easy for the GPU 203 to execute the processing for displaying the telop, and the display control processing can be made more efficient. The image data is temporarily stored in the storage area 18 as a frame buffer, and is read at the timing of displaying.

  The image data is output from the display connection port 14 to the display 20 as an output signal synthesized with the video information in the output processing unit 19. At this time, the signal may include information to be displayed in the information display area, for example, call number information provided from the personal computer terminal 40 via the network 70. The output processing unit 19 synthesizes and outputs output signals so that various types of information are displayed at positions corresponding to the respective display areas of the display 20.

  Each of the functional blocks described above corresponds to a functional unit realized by causing the CPU 201, the GPU 203, and the like to execute the hardware of the present embodiment by executing the program of the present embodiment. Further, all of the functional units described in the embodiments may be realized by software, or some or all of them may be implemented as hardware that provides equivalent functions.

  Next, the processing performed in the telop imaging block 17 will be described. FIG. 5 is a diagram illustrating an example in which the text of a telop is imaged. Here, as an example, a case in which a text “Now a half price campaign is being implemented!” Is displayed in the telop display area is considered.

  First, as shown in FIG. 5A, the telop imaging block 17 converts text data into raster image data one character at a time. Thereafter, the telop imaging block 17 converts the imaged characters into one image file by rearranging the characters according to the number of characters of the text and the size of the frame buffer. Examples of the converted image file include the formats shown in FIGS. 5B to 5D. Note that the broken lines shown in FIGS. 5B to 5D are for clarifying character delimiters, and are not included in an actual image file.

For example, in the case so as to produce a square image file, and stores the arranged characters within square as in FIG. 5 (d). If the size of the square shown in FIG. 5 (d) is a 1024 × 1024 pixels, since the number of characters is 15 characters, and a character size to 256 × 256 pixels, arranged in line for each four characters .

  Further, the size of the image file is not limited to the above, and characters may be arranged in a shape as shown in FIGS. 5 (c) and 5 (d). Furthermore, the arrangement of the characters can be appropriately selected according to the size, resolution, direction, and the like of the telop display area. The image file in which the characters are arranged is temporarily stored in the storage area 18, and is read when displaying the telop together with the output of the video or the like.

  Therefore, next, a process of reading an image file and displaying the image file in the telop display area will be described. FIG. 6 is a diagram illustrating an example in which a telop is displayed on the display 20. Here, a case where the image file shown in FIG. 5B is read and displayed will be described as an example. Note that the broken lines shown in FIG. 6 are for clarifying character delimiters, as in FIGS. 5B to 5D, and are not included in an actual image file.

  The output processing unit 19 reads the image file from the storage area 18 and displays the image file in the telop display area. Here, it is assumed that ten characters of imaged characters can be displayed in one line in the telop display area, and that the contents of the telop are displayed while being scrolled.

  FIGS. 6A to 6E show the lapse of time of the image displayed in the telop display area of the display 20. 6 (a) to 6 (e) show the read range of the image file, and the right figures of FIGS. 6 (a) to 6 (e) show the read image file. Is shown in the telop display area. The range indicated by the dark color in FIG. 6 indicates the read range in the image file, and shows an example in which the image of the range is displayed in the telop display area.

  First, at the beginning of the display of a telop, as shown in FIG. 6 (a), the image file is read by the height of one character from the upper left, and the read range is sequentially expanded rightward. It is preferable that the read start position, the height of the read range, and the like are defined when the image file is generated, and are stored in association with the image file.

  The reading range of the image file expands with the passage of time, and the telop is scrolled and displayed accordingly. FIG. 6B shows a state in which an area having a height of one character from the top and an area having a height of two characters from the top are read from the image file. As described above, when reading is performed over a plurality of rows, the read images are arranged and displayed in one column so as to correspond to the telop display area.

  Thereafter, at the point of FIG. 6C, a range corresponding to 10 characters, which is the upper limit that can be displayed in the telop display area, is read, and the scrolled telop reaches the scroll end point of the telop display area. Thereafter, as shown in FIG. 6D, processing is performed so that the previously read range of the read range of the image file is not sequentially read.

  After that, the image file is read, and when the read range reaches the read end position of the image file as shown in FIG. 6E, the read start position may be included in the read range again. In this way, by circulating the reading range, the contents of the image file can be scrolled and displayed while being repeated.

  In the preferred embodiment, a blank may be displayed for a certain period of time when moving from the read end position to the read start position in order to improve legibility of the telop. Also, the same image file does not necessarily have to be circulated and displayed as a telop, and reading of another image file may be started after reaching the reading end position of one image file. By reading different image files in this manner, a plurality of subtitles can be displayed continuously.

  Next, processing executed by the display control device 10 will be described. FIG. 7 is a flowchart illustrating a process executed by the display control device 10 according to the present embodiment.

  The display control device 10 starts the process from step S1000, and in step S1001, the input / output I / F 204 accepts input of various data to be displayed on the display 20, such as a video and a telop.

  Thereafter, in step S1002, the telop imaging block 17 converts the text data of the input telop into an image and stores the image data in the storage area 18 as an image file. In a succeeding step S1003, a range to be displayed in the telop display area of the image file is read and output to the output processing unit 19.

  In step S1004, the output processing unit 19 reduces the size of the video. Note that the processing in step S1004 may be executed at a timing other than this, and for example, may be executed in parallel with the processing in step S1003 and the like.

  Then, in step S1005, the output processing unit 19 combines the video and the telop, and outputs the combined display control signal from the display connection port 14. Thereafter, the process returns to step S1003, and the processes of reading the image file, synthesizing with the video and the like, and outputting are repeated.

  Through the above-described processing, the imaged telop can be displayed on the display 20. In particular, since the display control processing in the GPU 203 is facilitated by converting the text of the telop into an image, the characters of the telop can be smoothly and smoothly simplified and the system configuration can be simplified to minimize the computer resources. It is possible to efficiently display information by using the information.

  According to the embodiments of the present invention described above, it is possible to provide a display control device, a display control system, a method, and a program for efficiently displaying information.

  Each function of the above-described embodiment of the present invention can be realized by a device-executable program described in C, C ++, C #, Java (registered trademark), or the like. It can be stored and distributed on a device-readable recording medium such as a ROM, an MO, a DVD, a flexible disk, an EEPROM, and an EPROM, and can be transmitted via a network in a format that can be used by other devices.

  As described above, the present invention has been described with the embodiment. However, the present invention is not limited to the above-described embodiment, and as long as the functions and effects of the present invention are achieved within the range of an embodiment that can be estimated by those skilled in the art. Are included in the scope of the present invention.

1. Display control system,
10 display control device,
11 ... Tuner connection port
12 ... decoder,
13 ... CHANNEL,
14. Display connection port,
15… NIC,
16 Controller
17: telop imaging block 18: storage area,
19 output processing unit,
20 ... Display,
30 ... TV tuner,
40 ... PC terminal,
50 ... Smartphone terminal,
60 ... server device,
70 ... Network,
201 ... CPU,
202 ... memory,
203 ... GPU,
204: input / output I / F,
205 ... Operation unit

Japanese Patent No. 4827992

Claims (6)

A display control device for controlling display of a telop by a display means,
Means for converting the text data to be displayed as the telop into raster-format image data one character at a time , and rearranging the converted image data to convert the text data into one image file ;
Means for outputting the converted image file as a display control signal while reading the one character height as a range to be displayed on the display means, and expanding the read range.
Means for converting the text data into one image file,
Image data in which the text data is converted character by character, rearranged and arranged according to the matrix size of the frame buffer according to the number of characters of the text data,
The display control device , wherein the converted image file is generated as a size in which a matrix size of the image data of the one character is an integer fraction of a matrix size of the frame buffer .   The display control device according to claim 1, wherein the range is a range corresponding to a display area of the display unit. The display control device further includes means for receiving input of a display image from a terminal including a personal computer terminal, a smartphone terminal, and a server device via a network,
The display control device according to claim 1, wherein the display control signal is output including the display image. Display means for displaying a telop based on a display control signal;
Means for converting the text data to be displayed as the telop into raster-format image data one character at a time , and rearranging the converted image data to convert the text data into one image file ;
Means for outputting the converted image file as a display control signal while reading the one character height as a range to be displayed on the display means, and expanding the read range.
Means for converting the text data into one image file,
Image data in which the text data is converted character by character, rearranged and arranged according to the matrix size of the frame buffer according to the number of characters of the text data,
The display control system , wherein the converted image file is generated as a size in which a matrix size of the image data of one character is an integer fraction of a matrix size of the frame buffer . A method executed by a display control device that controls a telop display of a display means,
After converting the text data to be displayed as a telop character by character to the image data of a raster format, to convert into a single image file rearranges image data described above transformation,
The converted image file is read by the height of the one character as a range to be displayed on the display means, and output as a display control signal while enlarging the read range,
Including
Converting the text data into one image file
Image data in which the text data is converted one character at a time, rearranging and arranging the image data according to the number of characters of the text data in accordance with the matrix size of a frame buffer;
Generating the converted image file as a size such that a matrix size of the image data of the one character is an integer fraction of a matrix size of the frame buffer . A program executed by a display control device that controls a telop display of a display unit, wherein the display control device includes:
After converting the text data to be displayed as a telop character by character to the image data of a raster format, to convert into a single image file rearranges image data described above transformation,
The converted image file is read by the height of the one character as a range to be displayed on the display means, and output as a display control signal while enlarging the read range,
And execute
Converting the text data into one image file;
Image data in which the text data is converted one character at a time, rearranging and arranging the image data according to the number of characters of the text data in accordance with the matrix size of a frame buffer;
An apparatus-executable program including generating the converted image file as a size in which a matrix size of the image data of one character is an integer fraction of a matrix size of the frame buffer.