JP2008020775A - Video display system, video display device and remote control transmitter - Google Patents

Abstract

In a video display system capable of displaying a pointer image for display control with a remote control transmitter, the convenience and visibility of the pointer image are improved.
An image display device 100 includes an OSD (on-screen) generation unit 15 that generates an on-screen display signal including a pointer image 29, a video composition unit 16 that combines the on-screen display with a displayed image, and a composition. The remote control transmitter 300 includes a display unit 20 that displays the video, a remote control receiver 19 that receives operation information, and a display control unit 14 that controls the pointer image 29 based on the operation information. An operation information generation unit 38 for generating operation information including operation information for operating the display position of the pointer image 29 according to an operation of the operation unit 31 and operation information for operating display and non-display of the pointer image 29; A remote control transmission unit 39 for transmitting information.
[Selection] Figure 1

Description

  The present invention relates to a video display device having a function for on-screen display of graphic images such as characters and symbols on a video, and in particular, used for pointing to an arbitrary position on a video display screen using the on-screen display function. The present invention relates to a video display device for displaying a pointer image, a remote control transmitter for operating a display position of the pointer image, and a video display system including such a video display device and a remote control transmitter.

  For example, when a presentation is performed using a video display device having a large screen at a meeting or the like, the presenter separately uses a pure optical instruction pointer such as a laser pointer. Then, the presenter has performed the presentation while pointing the point to be indicated with the projected light beam in the charts and characters displayed on the screen or on the video display device.

  Incidentally, in recent years, with the widespread use of personal computers (hereinafter referred to as “PCs” as appropriate), presentation forms in which meetings are held using PCs are becoming widespread. As an example of such a presentation form, for example, there is a form in which a monitor image of a PC is displayed on a large screen screen, a cursor is used as a substitute for an instruction pointer, and a presentation is performed while a point to be designated is indicated by the cursor. The cursor is one of pointer images displayed on the PC monitor screen, and is generally used for operations on the PC in combination with a pointing device such as a mouse pointer. When the user uses the PC, in addition to the operation from the keyboard, for example, by manually operating such a mouse pointer, the cursor displayed on the monitor screen of the PC is moved and the mouse is clicked at a desired position. Depending on the situation, the operation to the PC is performed.

  In addition, in the presentation form using such a PC, in order to further enhance the convenience, a remote controller called a so-called remote controller that has been widely used for remote control of consumer devices and the like has been used, and a video display screen has been used. There has been proposed a technique that enables an operation to a PC including a cursor operation (for example, see Patent Document 1).

  That is, for example, a liquid crystal projector is prepared as a video display side device, a PC is prepared as a video supply side device, and these are connected by an information transmission code. Further, a remote control signal light receiving unit is provided in the liquid crystal projector, and a pointing device such as a trackball or a joystick is provided in the remote control for the liquid crystal projector. Accordingly, it is possible to notify the liquid crystal projector of cursor movement information, click information, and the like using the remote controller. Furthermore, the cursor movement information and the click information are transmitted from the liquid crystal projector to the PC, the cursor coordinates are generated on the PC side, and the cursor image is synthesized with the transmission image and transmitted to the liquid crystal projector. As a result, the user can perform operations on the PC such as moving the cursor and clicking by operating the remote control held in his / her hand while viewing the displayed screen image. Further, since the user can move the cursor displayed on the screen by operating the remote controller, it is also possible to point the point to be designated on the screen with the cursor.

On the other hand, as a use form in which such a cursor is displayed on the video display screen and the cursor is operated with a remote controller, a technique applied to a television receiver has been proposed (see, for example, Patent Document 2). ). That is, for example, in a television receiver having a plurality of functions, a cursor display means for displaying an operation menu and a cursor for the plurality of functions on the screen is provided. Further, the television receiver is configured such that the desired function can be selected from the control of the cursor display means and the operation menu by the remote controller that transmits the cursor movement information and the click information as described above. With respect to such a television receiver, the user can select one item of the operation menu displayed on the screen while moving the cursor from the remote controller, so that the user can interactively operate the television receiver. .
JP 2005-49666 A JP-A-5-336397

  However, since the cursor displayed on the monitor image of the PC as in the above-described conventional example is indispensable for the PC operation, it is always displayed except for the screen saver mode. For this reason, for example, when a PC operation cursor as in the conventional example is used for the presentation as described above, characters for the presentation may be hidden, which makes it difficult to view. In addition, since such a cursor is always displayed, as the presentation progresses, a situation may occur where the cursor points to a content location that is different from the content of the speech during the presentation, resulting in misunderstanding and confusion for the viewer. There were also inconveniences such as.

  On the other hand, the cursor displayed on the television receiver as in the above-described conventional example is an obstacle to program display and so on, and is controlled so as to be automatically hidden after a predetermined time, for example. For this reason, for example, when a cursor displayed on a television receiver as in the conventional example is used for the presentation as described above, the cursor may disappear against the intention of the user. The cursor displayed on John's receiver was unsuitable for presentations.

  In this way, when a presentation or the like is performed using the cursor as in the conventional example and the remote controller that operates the cursor as an instruction pointer, the point to be pointed to is pointed as intended, or the pointing is interrupted. However, there is a problem in the convenience when trying to use such a cursor for presentation. In other words, the cursor as in the conventional example may not be easy to use for presentation.

  In addition, since the laser pointer can be easily and quickly pointed to a desired location, it is convenient for presentations and the like. Visibility is becoming an issue for use in various video display devices. In other words, as the size of the video display device is accelerating, the indication point using the laser pointer is indicated by the laser pointer because the area of the indication point indicated by the laser pointer is smaller than the area of the entire screen of the video display device. The visibility of the indicated point decreases. In recent years, the brightness of video display devices has been increased, and when the brightness of the displayed video is high, the brightness of the point pointed to by the laser pointer is equal to or less than the brightness of the video. It will be dropped.

  The present invention has been made to solve the above-described problems. When a presentation video is displayed and a presentation is performed while pointing with an instruction pointer, the convenience is improved and the visibility is also improved. Another object is to provide a video display system, a video display device, and a remote control transmitter.

  In order to achieve the above-described object, a video display system according to the present invention includes a video display device that displays video and a remote control transmitter that remotely controls the video display device by transmitting operation information. It is a display system. Furthermore, the video display device includes an on-screen generation unit that generates an on-screen display signal including a pointer image, a video synthesis unit that combines the on-screen display with the video to be displayed, a display unit that displays the synthesized video, The remote control receiving unit receives operation information from the remote control transmitter, and the display control unit controls the pointer image based on the operation information. Further, the remote control transmitter includes an operation unit that inputs an operation instruction for remote operation, an operation information generation unit that generates operation information of a pointer image according to the operation instruction, and a remote control transmission unit that transmits operation information. The operation information includes operation information for operating the display position of the pointer image, and operation information for operating display and non-display of the pointer image.

  With such a configuration, for example, when a presentation video including a pointer image is displayed on a video display device and the presenter makes a presentation using a remote control transmitter, the presenter uses the remote control transmitter. For example, a presentation can be advanced as follows. In other words, the presenter displays the pointer image by operating the remote control transmitter, and proceeds with the description while bringing the display position of the pointer image close to the character corresponding to the content in the presentation. Furthermore, the presenter hides the pointer image, for example, when the explanation of the presentation video ends, or displays the pointer image at a position that points to the most important part. As described above, the video display system according to the present invention can control the display and non-display of the pointer image together with the display position of the pointer image using the remote control transmitter. The pointer image can be operated as intended by the user. Thus, according to the video display system of the present invention, a video display system with improved convenience can be provided.

  Furthermore, the video display system of the present invention is configured such that the display control unit controls the display of the pointer image so that the pointer image moves based on the operation information.

  By adopting such a configuration, the user can set the position of the pointer image with a simple operation of the remote control transmitter, and can further enhance the convenience in the presentation or the like.

  In the video display system of the present invention, the display control unit controls the display of the pointer image so that the pointer image moves based on the operation information and the movement trajectory is displayed.

  By adopting such a configuration, the user can draw a line or draw a circle on the display video by using the pointer image whose position is controlled by the remote control transmitter, which is convenient for presentations and the like. It can be further increased.

  Furthermore, the video display system of the present invention has a configuration in which the display control unit includes pointer attribute control means for changing at least one of the display size, display luminance, and display transmittance, which are attributes of the pointer image.

  By adopting such a configuration, for example, the attribute of the pointer image can be changed so that it is easy to see according to the display size of the video display device, the type of video to be displayed, etc., so that the visibility in presentations can be improved it can.

  Furthermore, in the video display system of the present invention, the operation unit includes at least a pointing device for operating the display position of the pointer image and a key for operating the display and non-display of the pointer image.

  In the video display system of the present invention, the operation information generation unit generates movement operation information for moving the display position of the pointer image at a speed corresponding to an operation on the pointing device, and the display control unit includes the movement operation information. Based on this, the display of the pointer image is controlled to move the pointer image.

  With this configuration, the user can smoothly move the position of the pointer image with a simple operation of the remote control transmitter, and display and non-display of the pointer image with a simple operation of the remote control transmitter. Therefore, it is possible to further improve convenience in presentations.

  The video display device of the present invention is a video display device that receives operation information sent from a remote control transmitter and displays a video corresponding to the operation information, and generates an on-screen display signal including a pointer image. An on-screen generating unit, a video synthesizing unit that synthesizes the on-screen display with a video to be displayed, a display unit that displays the synthesized video, a remote control receiving unit that receives operation information from a remote control transmitter, and operation information And a display control unit for controlling the pointer image based on the above. Further, the display control unit changes the display position of the pointer image according to the operation information and controls the display and non-display of the pointer image.

  With such a configuration, the video display device of the present invention controls the display and non-display of the pointer image together with the display position of the pointer image according to the operation information from the remote control transmitter. When performing a presentation, the pointer image can be operated as intended by the user who is a presenter. Thus, according to the video display device of the present invention, a video display device with improved convenience can be provided.

  The remote control transmitter of the present invention is a remote control transmitter that remotely operates the video display device by transmitting operation information, and includes an operation unit that inputs an operation instruction for remote operation, and an operation instruction according to the operation instruction. An operation information generation unit that generates operation information of the pointer image and a remote control transmission unit that transmits the operation information. The operation information includes operation information for operating a display position of the pointer image, and display and non-display of the pointer image. It is the structure containing the operation information which operates.

  By adopting such a configuration, the remote control transmitter of the present invention can control the display and non-display of the pointer image together with the display position of the pointer image displayed in the video display screen for the video display device. Therefore, for example, when a presentation is performed, the pointer image can be operated as intended by the user who is a presenter by using the remote control transmitter of the present invention. Thus, according to the video display device of the present invention, a remote control transmitter with improved convenience can be provided.

  According to the video display system, the video display device, and the remote control transmitter of the present invention, it is possible to control the display and non-display of the pointer image together with the display position of the pointer image using the remote control transmitter. Since the attributes can be changed to be easy to see, for example, when a presentation is performed while pointing with a pointer image as an instruction pointer, the convenience is improved and the visibility is further improved, a video display system, a video display device, and a remote controller A transmitter can be provided.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(Embodiment)
FIG. 1 is a block diagram showing a configuration of a video display system according to an embodiment of the present invention.

  As shown in FIG. 1, the video display system according to the present embodiment includes a video display device 100 that displays video and a video display device 100 that transmits operation information that is information such as key input by a user. A remote control transmitter 300 for remote operation.

  The video display device 100 also displays a video signal processing unit 10 that performs signal processing on the video signal supplied to the video input terminal 11 and a video corresponding to the video signal output from the video signal processing unit 10. And a display unit 20. In the present embodiment, an example will be described in which the display unit 20 is configured by, for example, a plasma display panel or a liquid crystal panel. Such plasma display panels, liquid crystal panels, and the like are characterized by being thin, and for example, they are becoming popular as display portions of television receivers for general homes, and the size and size of panels are increasing. Brightening is also progressing rapidly. Along with this, in addition to the use for television receivers as described above, these display panels are also being used for conferences including presentations in companies and the like. That is, as shown in FIG. 1, the video display device 100 is configured such that the pointer image 29 as shown in FIG. 1 can be displayed in the video display screen 21 of the display unit 20 constituted by a plasma display panel or the like. Accordingly, the plasma display device or the like can be used for the presentation as described above.

  The video display system according to the present embodiment is configured such that a large-screen video display device 100 such as a plasma display device can be easily used for presentations. The configuration is as shown in FIG.

  That is, in the video signal processing unit 10 as shown in FIG. 1, a video signal to be displayed on the display unit 20 is supplied to the video input terminal 11. The video signal supplied to the video input terminal 11 is supplied to the video processing unit 12. The video processing unit 12 performs video resizing, multi-screen processing, image quality correction processing, and the like on the supplied video signal. The video signal supplied to the video processing unit 12 is supplied to the APL detection unit 13 via the video processing unit 12. The APL detection unit 13 detects an average picture level (hereinafter referred to as APL as appropriate) that is an average level of the video signal, and notifies the display control unit 14 described below of the detection result. The video signal processed by the video processing unit 12 is supplied to the video synthesis unit 16.

  Furthermore, the video signal processing unit 10 in the present embodiment has a function of on-screen display of graphic images such as characters and symbols on the video based on the video signal supplied to the video input terminal 11. In order to perform such on-screen display (hereinafter referred to as OSD as appropriate), the video signal processing unit 10 includes an OSD generation unit 15 that generates an OSD image signal, and an OSD generation unit that converts the video signal from the video processing unit 12 into an OSD generation unit. 15 includes a video synthesizing unit 16 that generates a synthesized video signal by synthesizing the OSD by superimposing the OSD image signal generated in 15, and a display control unit 14 for controlling the display of the OSD and the like. In particular, in the video display system of the present embodiment, the OSD generation unit 15 generates an image signal of the pointer image 29 in addition to the guidance OSD of the video display device 100, for example, and further the display control unit 14 Is also characterized by performing control related to the display of the pointer image 29. Further, the display control unit 14 is notified of the APL detected by the APL detection unit 13, and the control unit 18 described below is notified of operation information related to display and information related to the size of the video display device 100. Is done.

  In addition, the video signal processing unit 10 in the present embodiment has a function of executing various processes in the video display device 100 in accordance with the operation information transmitted from the remote control transmitter 300. In order to realize such a remote control function, the video signal processing unit 10 includes a remote control reception unit 19 that receives operation information from the remote control transmitter 300, and a video display device based on the operation information received by the remote control reception unit 19. A control unit 18 that controls execution of various processes in the system 100 and a memory 17 that stores information used by the control unit 18 for various controls are provided. In particular, in the video display system of the present embodiment, the operation information received by the remote control receiving unit 19 includes the operation information for operating the display position of the pointer image 29, and the operation for operating display and non-display of the pointer image 29. It is characterized by containing information. The memory 17 stores, for example, information regarding the size of the video display device 100, and the control unit 18 notifies the display control unit 14 of such information.

  In the present embodiment, the display control unit 14 further stores attribute information related to the attributes of the pointer image 29 such as the display size, display luminance, and display transmittance of the pointer image 29, and the display control unit An example in which a pointer image 29 in which at least one of display size, display luminance, display transmittance, and the like is changed can be displayed by control of a pointer attribute control unit (not shown) provided in FIG. explain.

  The APL detection unit 13 is provided for use in such display brightness change control in the pointer image 29. That is, the display control unit 14 determines the display brightness of the pointer image 29 based on the APL notified from the APL detection unit 13. The display control unit 14 generates display luminance information according to the APL level such that the higher the APL level is, the higher the display luminance is, and notifies the OSD generation unit 15 of the display luminance information. The OSD generation unit 15 generates an image signal of the pointer image 29 having the display luminance according to such display luminance information, and supplies the image signal to the video composition unit 16. The display control unit 14 may be configured to change the display transmittance of the pointer image 29 based on the APL notified from the APL detection unit 13. That is, the display control unit 14 controls the video composition unit 16 based on the APL notified from the APL detection unit 13. In accordance with such control, the video composition unit 16 changes the composite ratio between the video signal from the video processing unit 12 and the pointer image signal from the OSD generation unit 15 and changes the display transmittance of the pointer image 29. . By adopting such a configuration, the pointer image 29 having luminance and transmittance corresponding to the brightness level of the input video signal is displayed, and the pointer image 29 with improved visibility can be displayed. It becomes.

  Further, the display control unit 14 determines the display size of the pointer image 29 based on the information regarding the size of the video display device 100 stored in the memory 17. That is, the display control unit 14 is notified of information regarding the size of the video display device 100 via the control unit 18. Based on the information related to the size of the video display device 100, the display control unit 14 generates size information such that the display size of the pointer image 29 increases as the size increases, and notifies the OSD generation unit 15 of the size information. The OSD generation unit 15 generates an image signal of the pointer image 29 having a display size according to such size information, and supplies the image signal to the video composition unit 16. Even with this configuration, the pointer image 29 having a size corresponding to the size of the video display device 100 is displayed, and the pointer image 29 with improved visibility can be displayed.

  In this way, the video display device 100 can change the luminance and transmittance of the pointer image 29 according to the APL of the video signal, and can also change the size of the pointer image 29 according to the size of the video display device 100. Therefore, it is possible to change the attribute of the pointer image 29 so that it can be easily seen. When a presentation is performed using the pointer image 29, the visibility can be improved.

  Note that the display control unit 14 also stores, for example, an image shape as a pointer image such as an arrow, a circle, or a ring as attribute information of the pointer image 29, for example, a user operation unit (provided in the video display device 100 ( A function that can set the shape of the pointer image in accordance with an instruction from a device (not shown) may be further provided. The pointer image 29 may be configured so that attributes such as the display size, display brightness, and display transmittance can be operated from a user operation unit (not shown) provided in the video display device 100.

  As described above, the video display device 100 in the video display system according to the present embodiment includes the OSD generation unit 15 that generates an OSD signal including the pointer image 29, the video synthesis unit 16 that combines the OSD with the video to be displayed, The configuration includes a display unit 20 that displays the synthesized video, a remote control receiver 19 that receives operation information from the remote control transmitter 300, and a display control unit 14 that controls the pointer image 29 based on the operation information. .

  Note that the video display device 100 may be configured such that the display unit 20 and the video signal processing unit 10 are in the same casing, and a casing for storing the video signal processing unit 10 is provided to provide a display unit. 20 and the housing of the video signal processing unit 10 may be connected to each other with, for example, a connection cable. In such a configuration, for example, the remote control receiving unit 19 is installed on the display unit 20 side. For example, a part of the components of the video signal processing unit 10 may be provided on the display unit 20 side. The video signal processing unit 10 may further include a receiving unit that receives a television broadcast and a recording unit that records and reproduces the received program.

  On the other hand, in the video display system according to the present embodiment, remote control transmitter 300 transmits operation information instructed by the user, for example, by a key operation to video display device 100. For this reason, the remote control transmitter 300 is displayed on the display unit 20 in response to the operation unit 31 for inputting an operation instruction for remote operation and the operation instruction to the operation unit 31 for the user to perform an input operation or the like. An operation information generating unit 38 for generating operation information for operating the display position of the pointer image 29 and operation information for operating to display and hide the pointer image 29, and a remote control transmission unit 39 for transmitting the operation information. And. In FIG. 1, in order for the user to operate the pointer image 29, the operation unit 31 operates the pressure sensor 33 for designating the display position of the pointer image 29 and the display and non-display of the pointer image 29. An example provided with a key 32 is shown. Note that the remote control transmitter 300 may include an operation unit for performing an operation other than the operation of the pointer image 29, such as a volume variable key.

  In the operation unit 31, the pressure sensor 33 is provided as a pointing device that detects a direction specified by the user. That is, for example, the pressure sensor 33 detects the pressed position in the ring shape, the pressure thereof, and the like, and notifies the operation information generation unit 38 of the detected result. The key 32 is a button-like switch. When the user presses the key 32, the operation information generation unit 38 is notified of information that the key 32 is pressed. The operation information generation unit 38 generates operation information for operating the display position of the pointer image 29 based on the detection result from the pressure sensor 33. Further, the operation information generation unit 38 generates operation information for operating display and non-display of the pointer image 29 based on information notified from the key 32. The operation information generated by the operation information generation unit 38 is sent from the remote control transmission unit 39 to the remote control reception unit 19 of the video display device 100.

  FIG. 2 is a diagram illustrating an example of an external appearance of remote control transmitter 300 as viewed from the front. As shown in FIG. 2, here, an example in which the remote control transmitter 300 has a pointing device 301 for operating the pressure sensor 33, a display operation key 302 as a key 32, and a locus operation key 303 arranged on the remote control. Show. Further, by operating these, operation information corresponding to the operation is encoded, and infrared light modulated by the code is transmitted from a light emitting diode (hereinafter referred to as LED) 309 included in the remote control transmission unit 39. .

  A pointing device 301 shown in FIG. 2 is a pressure-type pointing device, and detects the position where the pressure sensor 33 provided in the lower part is pressed and its pressure by pressing the periphery of the circle. The pointing device 301 is provided to operate the display position of the pointer image 29 displayed on the video display screen 21. In the present embodiment, the pointer image 29 moves in the direction corresponding to the pressed position. To do. That is, when the pointing device 301 is pressed, the pressure sensor 33 detects the pressed position and notifies the operation information generation unit 38 of the detected position. The operation information generation unit 38 generates operation information corresponding to the notified pressing position as movement operation information. This movement operation information is encoded and transmitted from the remote control transmission unit 39 and notified to the remote control reception unit 19. Further, this movement operation information is notified to the control unit 18. When the control unit 18 analyzes the movement operation information and determines that the operation information is related to display, the control unit 18 notifies the display control unit 14 of the movement operation information. The display control unit 14 changes the superimposition position of the pointer image 29 superimposed on the video based on the movement operation information that is the operation information corresponding to the pressed position on the pointing device 301, and the OSD generation unit 15 and the video synthesis unit 16. To control. In this way, the display position of the pointer image 29 displayed in the video display screen 21 is changed so as to move in the direction corresponding to the pressed position on the pointing device 301. For example, when the user presses the upper side of the pointing device 301, the operation information that the upper side is pressed is notified to the display control unit 14 according to the above-described procedure, and the display control unit 14 displays the display position of the pointer image 29. The OSD generation unit 15 and the video composition unit 16 are controlled so as to be changed upward. For example, when the user continues to press the upper side of the pointing device 301, the display control unit 14 controls the OSD generation unit 15 and the video composition unit 16 so that the display position of the pointer image 29 continues to be changed upward. To do. For this reason, in such a case, the pointer image 29 moves upward.

  Thus, the operation information is transmitted from the remote control transmitter 300, and the display control unit 14 moves the pointer image 29 based on the operation information for operating the display position of the pointer image 29 received by the remote control reception unit 19. The display of the pointer image 29 is controlled.

  Further, in the present embodiment, a configuration example will be described in which the pressure that the pressure sensor 33 is pressed is also detected, and the pointer image 29 moves at a speed corresponding to the pressure on the pointing device 301. When the pointing device 301 is pressed, the pressure sensor 33 detects the pressing force as well as the pressing position, and notifies the operation information generation unit 38 of it. Further, the operation information corresponding to the applied pressure is also notified to the display control unit 14 as movement operation information. The display control unit 14 controls the OSD generation unit 15 and the video composition unit 16 so as to change the display position of the pointer image 29 to a position corresponding to the pressure applied by the pointing device 301. With this configuration, when the user keeps pressing the desired position of the pointing device 301 strongly, the pointer image 29 is displayed so as to move quickly in the video display screen 21, and conversely, the user weakly points. When the desired position of the device 301 is continuously pressed, the pointer image 29 is displayed so as to move slowly in the video display screen 21.

  As described above, the operation information generation unit 38 generates movement operation information as operation information for moving the display position of the pointer image 29 at a speed corresponding to the operation on the pointing device 301, and the display control unit 14 receives the remote control. Based on the movement operation information received by the unit 19, the display of the pointer image 29 is controlled so that the pointer image 29 is displayed while moving at a speed corresponding to the movement operation information.

  In addition, remote control transmitter 300 in the present embodiment has display operation key 302 and locus operation key 303 as keys 32 as described above. The display operation key 302 is a key provided for operating whether to display or hide the pointer image 29 in the video display screen 21. Here, an example of the display operation key 302 that toggles between display and non-display each time the display operation key 302 is pressed will be described. That is, when the display operation key 302 is pressed, the key 32 detects the pressing and notifies the operation information generation unit 38 of detection information that is used as a display instruction. The operation information generation unit 38 generates operation information corresponding to the detection information used as a display instruction. The operation information is encoded and transmitted from the remote control transmission unit 39 and notified to the remote control reception unit 19. Further, the operation information is notified to the control unit 18. When the control unit 18 analyzes the operation information and determines that the operation information is related to display, the control unit 18 notifies the display control unit 14 of the operation information. The display control unit 14 controls the OSD generation unit 15 and the video composition unit 16 so as to display the pointer image 29 superimposed on the video based on the operation information as the display instruction. Furthermore, when the display operation key 302 is pressed again, the key 32 detects the pressing, and this time notifies the operation information generation unit 38 of detection information that is a non-display instruction. Such operation information is notified to the display control unit 14, and the display control unit 14 performs the OSD generation unit 15 and the video composition so as not to display the pointer image 29 superimposed on the video based on the operation information to be the non-display instruction. The unit 16 is controlled. Thus, in the video display system according to the present embodiment, for example, a user who is a presenter moves the pointer image 29 from the remote control transmitter 300 and easily switches between displaying and hiding the pointer image 29. It is set as the structure which can do. For this reason, in the case of giving a presentation, the user who is a presenter can advance the presentation while moving the pointer image and switching between display and non-display as intended by the user.

  In the present embodiment, remote control transmitter 300 further has locus operation key 303. The trajectory operation key 303 is a key provided for performing an operation to display the movement trajectory along with the movement of the pointer image 29. In the present embodiment, an example will be described in which the locus operation key 303 is used in combination with the pointing device 301 described above. That is, when the user presses the trajectory operation key 303 to turn it on, the trajectory display mode is set, and when the user presses the trajectory operation key 303 to turn it off, the trajectory release mode is set. The state of the locus operation key 303 is notified to the operation information generation unit 38. The operation information generation unit 38 generates operation information corresponding to the state of the locus operation key 303 when the locus operation key 303 is pressed. The operation information is encoded and transmitted from the remote control transmission unit 39 and notified to the remote control reception unit 19. Further, the operation information is notified to the control unit 18. When the control unit 18 analyzes the operation information and determines that the operation information is related to display, the control unit 18 notifies the display control unit 14 of the operation information. The display control unit 14 stores the notified operation information regarding the trajectory, and is set to be in the trajectory display mode or the trajectory release mode. When the position of the pointer image 29 is changed or moved, the display control unit 14 performs display control according to such a locus display mode or a locus release mode. In the locus release mode, the display position is changed by the control of the display control unit 14 so that the pointer image 29 moves in the direction corresponding to the pressed position on the pointing device 301. On the other hand, in the locus display mode, the control of the display control unit 14 causes the pointer image 29 to move in the direction corresponding to the pressed position on the pointing device 301 and to display the moving locus. An image is displayed. In this way, for example, when the user operates the pointing device 301 in a state where the locus release mode is set, the pointer image 29 changes its position or moves in accordance with the operation as described above. . On the other hand, for example, when the user operates the pointing device 301 in a state where the locus display mode is set, the moved locus is displayed together with the movement of the pointer image 29. By providing such a configuration, for example, in the case of giving a presentation, the user who is a presenter can operate the pointer image 29 by the remote control transmitter 300 to, for example, track the pointer image 29 at a point to be noticed. A line can be drawn or a circle can be drawn on the image, and convenience when the video display system of this embodiment is used for presentation can be improved. For example, in the trajectory display mode, a configuration may be adopted in which a trajectory of a part of the image of the pointer image 29 is displayed, for example, as a tip portion of an arrow image. Thereby, the concealment of the text image by the trajectory image can be suppressed.

  As described above, the operation information is transmitted from the remote control transmitter 300, and the display control unit 14 moves the pointer image 29 based on the operation information for operating the display position of the pointer image 29 received by the remote control reception unit 19. The display of the pointer image 29 is controlled so as to display the movement locus.

  As described above, the operation unit 31 of the remote control transmitter 300 is at least the pointing device 301 for instructing the display position of the pointer image 29 and the keys for instructing the display and non-display of the pointer image 29. A display operation key 302 is provided.

  As described above, since the video display system according to the present embodiment has the above-described configuration, for example, when a presentation is performed at a conference in a company, the presenter operates the remote control transmitter 300 held in his / her hand, The presentation can proceed while the video for presentation displayed on the video display screen 21 of the display unit 20 is pointed by the pointer image 29.

  FIG. 3 is a diagram showing an example when the video display system configured as described above is used for presentation. In FIG. 3, a presenter 90 that displays a presentation video 201 and a video 202 created by, for example, a personal computer (PC) on a video display device 100 such as a plasma display device and holds the remote control transmitter 300 in hand. In the example, the presentation is advanced while the position of the pointer image 29 in the video display screen 21 is operated by the operation of the remote control transmitter 300.

  FIG. 4 is a diagram illustrating an operation example of the pointer image 29 displayed on the video display screen 21. 4A shows a case where a display operation is performed using the display operation key 302 of the remote control transmitter 300, FIG. 4B shows a case where a display operation is performed using the display operation key 302, and FIG. FIG. 4D shows a display example when the locus operation mode 303 is set by the locus operation key 303 and the movement operation is performed by the pointing device 301. .

  Hereinafter, the operation of the video display system according to the present embodiment will be described with reference to FIGS.

  First, as shown in FIG. 3, when the presenter 90 presses the display operation key 302 of the remote control transmitter 300, for example, infrared light on which operation information related to the display operation is superimposed is transmitted from the LED 309. The infrared light is received by the light receiving unit 190 provided in the remote control receiving unit 19 of the video display device 100, and the operation information is notified to the display control unit 14. As a result, the display control unit 14 controls the OSD generation unit 15 and the video composition unit 16 to change the pointer image 29 to display or non-display. With this operation, if the pointer image 29 is not displayed before the display operation key 302 is pressed, the pointer image 29 is displayed in the video display screen 21 as shown in FIG. The Conversely, if the pointer image 29 is displayed before the button is pressed, the pointer image 29 is not displayed, that is, deleted, as shown in FIG.

  As described above, in the video display system according to the present embodiment, unlike the cursor used in the PC, the pointer image 29 can be displayed or hidden according to the user's intention. The display can be switched between non-display and non-display by a simple operation from the remote control transmitter 300. Therefore, for example, even when the pointer image 29 hides the video for presentation as shown in FIG. 4A, it can be easily switched to non-display as shown in FIG. 4B. it can. That is, there is no need to move the pointer image 29 to, for example, a blank area or the vicinity of the peripheral frame of the video display screen 21, and the presenter can display or hide the pointer image 29 as intended. Alternatively, the presentation can be advanced while moving as described below. In addition, since the presenter finishes the explanation of the location indicated by the pointer image 29 and can erase the pointer image 29, the presenter prevents inconvenience that the pointer image 29 points to a content location different from the content of the speech during the presentation. It can also prevent inconveniences such as misunderstanding and confusion to the viewer.

  In addition to the function of operating display and non-display, in order to further improve convenience, for example, a key such as a multi-display key is further provided, and the user moves the pointer image 29, such as A function of displaying a plurality of pointer images 29 may be further provided so that each time the multi-display key is pressed, the pointer images 29 are sequentially displayed at the positions.

  Next, when the presenter 90 presses a desired position of the pointing device 301 of the remote control transmitter 300, infrared light with superimposed position operation information corresponding to the position and pressure is transmitted from the LED 309. The infrared light is received by the light receiving unit 190 provided in the remote control receiving unit 19 of the video display device 100, and the position operation information is notified to the display control unit 14. Thereby, the display control unit 14 controls the OSD generation unit 15 and the video composition unit 16 so as to change the display position of the pointer image 29. By such an operation, for example, when the presenter 90 continues to press the desired position of the pointing device 301, as shown in FIG. 4C, at a speed corresponding to the applied pressure in the direction corresponding to the pressed position. The pointer image 29 moves.

  Next, when the presenter 90 presses the trajectory operation key 303 of the remote control transmitter 300 to set the trajectory display mode and further presses a desired position of the pointing device 301 of the remote control transmitter 300, Infrared rays superimposed with position operation information corresponding to pressure are transmitted from the LED 309, and the position operation information is notified to the display control unit 14. At this time, the display control unit 14 stores the fact that it is the trajectory display mode, and controls the OSD generation unit 15 and the video composition unit 16 so as to change the display position of the pointer image 29 according to the trajectory display mode. By such an operation, for example, when the presenter 90 continues to press the desired position of the pointing device 301, as shown in FIG. 4D, at a speed corresponding to the applied pressure in the direction corresponding to the pressed position. The pointer image 29 moves and the OSD image 203 of the movement locus is displayed. FIG. 4D shows an example in which the movement locus of the tip of the pointer image 29 having an arrow shape is displayed as the OSD image 203. In the trajectory display mode, the OSD image 203 of such a moving trajectory can be displayed, so that the OSD image 203 can be displayed as a line as shown in FIG. In addition, as a method for controlling the non-display of the OSD image 203, for example, control is performed so that each of the pointer image 29 and the OSD image 203 of the movement trajectory repeats display and non-display when the display operation key 302 is pressed. By setting the locus release mode using the locus operation key 303, it is possible to control the OSD image 203 so that the display of the OSD image 203 is completely erased. Furthermore, it may be configured such that a key for trajectory control is provided so that OSD images of a plurality of movement trajectories can be displayed.

  As described above, in the video display system of the present invention, the video display device 100 generates the OSD signal 15 that generates the OSD signal including the pointer image 29, and the video synthesis unit 16 that combines the OSD with the video to be displayed. A display unit 20 for displaying the synthesized video, a remote control receiving unit 19 for receiving operation information from the remote control transmitter 300, and a display control unit 14 for controlling the pointer image 29 based on the operation information. The remote control transmitter 300 operates the operation unit 31 for inputting an operation instruction for remote operation, operation information for operating the display position of the pointer image 29 according to the operation instruction, and display and non-display of the pointer image 29. The operation information generation unit 38 that generates operation information including the operation information to be operated and the remote control transmission unit 39 that transmits the operation information are provided. Since the video display system of the present invention has such a configuration, when the presenter makes a presentation using the remote control transmitter 300, the presenter uses the remote control transmitter 300 to display the display position of the pointer image 29 and the like. The display of the pointer image 29 and the non-display of the pointer image 29 can be controlled along with the movement, and the movement locus of the pointer image 29 can also be displayed. For this reason, if the video display system of the present invention is used, the pointer image 29 can be operated as intended by the user who is a presenter. The video display system of the present invention improves convenience in presentations and the like. A video display system can be provided.

  Furthermore, the video display system of the present invention has a configuration in which the display control unit 14 has pointer attribute control means for changing at least one of display size, display luminance, and display transmittance, which are attributes of the pointer image. The attribute of the pointer image can be changed so as to be easy to see according to the display size of the video display device 100 and the type of video to be displayed. For this reason, it is possible to provide a video display system with improved visibility in presentations and the like. .

  The present invention can be used for, for example, a video display device using a plasma display panel, a liquid crystal panel, or the like.

The block diagram which shows the structure of the video display system in embodiment of this invention The figure which showed an example of the external appearance seen from the front of the same remote control transmitter The figure which showed an example at the time of using for presentation The figure which showed the example of operation of the pointer image

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Video signal processing part 11 Video input terminal 12 Video processing part 13 APL detection part 14 Display control part 15 OSD production | generation part (on-screen production | generation part)
DESCRIPTION OF SYMBOLS 16 Image composition part 17 Memory 18 Control part 19 Remote control receiver 20 Display part 21 Video display screen 29 Pointer image 31 Operation part 32 Key 33 Pressure sensor 38 Operation information generation part 39 Remote control transmission part 90 Presenter 100 Video display apparatus 190 Light receiving part 203 OSD image 300 Remote control transmitter 301 Pointing device 302 Display operation key 303 Trajectory operation key 309 Light emitting diode (LED)

Claims (8)

A video display system comprising a video display device for displaying video and a remote control transmitter for remotely operating the video display device by transmitting operation information,
The video display device
An on-screen generator for generating an on-screen display signal including a pointer image;
A video composition unit for compositing the on-screen display with a video to be displayed;
A display unit for displaying the synthesized video;
A remote control receiver for receiving operation information from the remote control transmitter;
A display control unit that controls the pointer image based on the operation information,
The remote control transmitter is
An operation unit for inputting operation instructions for remote operation;
An operation information generation unit that generates operation information of the pointer image in response to the operation instruction;
A remote control transmitter for transmitting the operation information,
The video display system, wherein the operation information includes operation information for operating a display position of the pointer image and operation information for operating display and non-display of the pointer image. The video display system according to claim 1, wherein the display control unit controls display of the pointer image so that the pointer image moves based on the operation information. The video display system according to claim 1, wherein the display control unit controls display of the pointer image so that the pointer image moves and the movement locus thereof is displayed based on the operation information. 2. The video display system according to claim 1, wherein the display control unit includes pointer attribute control means for changing at least one of a display size, display luminance, and display transmittance, which are attributes of the pointer image. . The video display system according to claim 1, wherein the operation unit includes at least a pointing device for operating a display position of the pointer image and a key for operating display and non-display of the pointer image. . The operation information generation unit generates movement operation information for moving the display position of the pointer image at a speed according to an operation on the pointing device,
The video display system according to claim 5, wherein the display control unit controls display of the pointer image so as to move the pointer image based on the movement operation information. A video display device that receives operation information sent from a remote control transmitter and displays a video corresponding to the operation information,
An on-screen generator for generating an on-screen display signal including a pointer image;
A video composition unit for compositing the on-screen display with a video to be displayed;
A display unit for displaying the synthesized video;
A remote control receiver for receiving operation information from the remote control transmitter;
A display control unit that controls the pointer image based on the operation information,
The display control unit
A video display device, wherein the display position of the pointer image is changed according to the operation information, and the display and non-display of the pointer image are controlled. A remote control transmitter for remotely operating the video display device by transmitting operation information,
An operation unit for inputting operation instructions for remote operation;
An operation information generation unit that generates operation information of the pointer image in response to the operation instruction;
A remote control transmitter for transmitting the operation information,
The operation information includes operation information for operating a display position of the pointer image, and operation information for operating display and non-display of the pointer image.

Images