JP3110932B2 - Projection display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a projection display device such as a liquid crystal projector device for displaying guidance information such as an arrangement and a viewpoint suitable for a display screen size.

[0002]

2. Description of the Related Art A conventional front type projector device projects and displays an image on a screen provided in front. Therefore, by changing the position and the focus of the projector device according to the size of the screen, it is possible to select and display a screen of a plurality of sizes. In this case, the screen size displayed on the screen is, for example, 40 to
Since there is an opening several times as large as 100 inches, there is naturally an opening in the observation position (viewpoint) and other arrangements in actual viewing.

[0003]

However, in the conventional projector device, there is no way to deal with the arrangement and viewpoint suitable for the screen size displayed on the screen. Had become. For this reason, observation may not be possible in a favorable environment.

The present invention has been made in view of the above-described circumstances, and allows the user to immediately know guidance information such as an arrangement and a viewpoint suitable for a screen size displayed on a screen, and to observe in a favorable environment. It is an object of the present invention to provide a projection-type display device capable of performing the above-described operations.

[0005]

SUMMARY OF THE INVENTION The present invention is to solve the above problems, a projection type display device for displaying by projecting an image on a screen provided on the front, Four of the projection lens
Guss information (focus position) or an observation position from the screen corresponding to the distance between the display device and the screen, or a speaker arrangement, or a height relationship between the observer and the screen, or guidance information including room brightness. And the focus information of the projection lens.
Means for selecting guidance information (focus position) or guidance information stored in the storage means corresponding to the distance between the display device and the screen, and display means for displaying guidance information based on the selection result of the selection means In a projection type display device that projects and displays an image on a screen provided in front, focus information (focus position) of a projection lens or the above- described configuration is provided. Storage means for storing guidance information corresponding to the distance between the display device and the screen, and a projection lens
Selection means for selecting guidance information stored in the storage means corresponding to the focus information (focus position) of the focus or the distance between the display device and the screen, and providing guidance information corresponding to the selection result of the selection means in a graphic form. And display means for displaying the guidance information corresponding to the screen size displayed on the screen, so that a good observation environment can be easily known. It is like that.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows an embodiment of the present invention, in which a projection state of a projector device is viewed from a lateral direction. The projector device 1 is configured by providing a projector body 2 with a projection lens 3 and a distance measuring unit 4. The projector device 1
Displays an image projected on a screen 5 provided in front. l indicates the distance between the projector device 1 and the screen 5.

FIG. 2 is a block diagram showing an example of the configuration of the guidance information display device provided in the projector device 1. FIG. 4 is a flowchart showing the operation of the guidance information display device of FIG. That is, guidance information corresponding to the distance 1 between the projector device 1 and the screen 5 and focus information of the projection lens 3 are stored in the ROM 15 of the storage unit in advance. When the projector device 1 and the screen 5 are set as shown in FIG. 1, the distance 1 between the projector device 1 and the screen 5 is measured by the distance detecting means 12 of the distance measuring unit 4 using, for example, infrared rays. I do. When the distance measurement is completed, the CPU 11 of the selection means selects the distance 1 between the projector device 1 and the screen 5
Output to The CPU 11 calculates the distance 1 between the projector device 1 and the screen 5 input from the distance detecting means 12,
Compared to the contents of the ROM 15, the focus information (focus position) of the projection lens 3 and the guidance information such as the arrangement and the viewpoint corresponding to the screen size of the screen 5 at that time are selected, and the selection result is transmitted to the projection lens driving unit 13 Output to display control means 14. The projection lens driving means 13 is a CP
The projection lens 3 is driven according to the focus information (focus position) of the projection lens 3 input from U11 to focus the image on the screen 5. Also, the display control means 14
In accordance with the guidance information input from the CPU 11, for example, as shown in FIG. 6, a guidance information display 22 is superimposed on an image on a screen 21 on the screen 5. The guidance information display 22 indicates the current display screen size and the observation position from the screen 5. In this way, the user can easily know the screen size and the appropriate observation position.

The distance detecting means is not limited to the case using infrared rays, but may use sound or the like. FIG. 3 is a block diagram showing another example of the configuration of the guidance information display device provided in the projector device 1. FIG. 5 is a flowchart showing the operation of the guidance information display device of FIG. FIG. 3 is provided with a projection lens state detecting means 16 in place of the distance detecting means 12 and the projection lens driving means 13 of FIG. That is, guidance information corresponding to focus information (focus position) of the projection lens 3 which is a state of the projection lens 3 is stored in the ROM 15 of the storage unit in advance. Thus, as shown in FIG.
With the screen 5 set, the projection lens 3 is manually moved to focus. In this focused state, the projection lens state detection means 16 detects lens information which is focus information of the projection lens 3 and outputs the lens information to the CPU 11 of the selection means. The CPU 11 compares the lens information (focus information) input from the projection lens state detection means 16 with the contents of the ROM 15, selects guidance information such as an arrangement and a viewpoint corresponding to the screen size of the screen 5 at that time, and selects the information. The result is output to the display control means 14. In accordance with the guidance information input from the CPU 11, the display control means 14 displays the guidance information display 22 on the screen 21 on the screen 5, for example, as shown in FIG. The guidance information display 22 indicates the current display screen size and the observation position from the screen 5. In this way, the user can easily know the screen size and the appropriate observation position.

In the embodiment of FIG. 3, since the distance detecting means is not used, it can be realized at relatively low cost. The guidance information is not limited to the above embodiment, and may be, for example, a speaker arrangement suitable for the screen size of the screen, a height relationship between the observer and the screen, a room brightness, and the like. Further, the guidance information may be provided on a display unit provided in the projector body and displayed on the display unit.

[0010]

As described above, according to the present invention, in a projection display apparatus for projecting and displaying an image on a screen provided in front, focus information (focus) of a projection lens is provided.
Position) or corresponding to the distance between the display device and the screen, the observation position from the screen, or the speaker arrangement, or the height relationship between the observer and the screen, or the guidance information including the room brightness. Storage means and focus information of the projection lens (focus position)
Or be provided with a selection means for selecting the display device and the guidance information stored in said storage means corresponding to the distance between the screen, and display means for displaying the guidance information based on the selection result of the selecting means In a projection display device for projecting and displaying an image on a screen provided in front, a projection lens is provided.
Storage means for storing guidance information corresponding to the focus information (focus position) or the guidance information corresponding to the distance between the display device and the screen, and the focus of the projection lens.
Selection means for selecting information (focus position) or guidance information stored in the storage means corresponding to the distance between the display device and the screen, including guidance information corresponding to the selection result of the selection means, including a graphic And a display means for displaying the guidance information. The guidance information corresponding to the screen size displayed on the screen is displayed, so that a good observation environment can be easily known.

[Brief description of the drawings]

FIG. 1 illustrates an embodiment of the present invention, and is a side view illustrating a projection state of a projector device.

FIG. 2 is a block diagram illustrating an example of a configuration of a guidance information display device according to an embodiment of the present invention.

FIG. 3, showing an embodiment of the present invention, is a block diagram illustrating another example of the configuration of the guidance information display device.

FIG. 4 is a flowchart illustrating an operation of the guidance information display device of FIG. 2 according to the embodiment of the present invention.

FIG. 5 is a flowchart showing an operation of the guidance information display device of FIG. 3 according to the embodiment of the present invention.

FIG. 6 illustrates an example of the present invention and is an explanatory diagram illustrating a screen on which guidance information is displayed.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Projector apparatus, 2 ... Projector main body, 3 ... Projection lens, 4 ... Distance measuring part, 5 ... Screen, 11 ... CP
U, 12: distance detecting means, 13: projection lens driving means,
14: display control means, 15: ROM, 16: projection lens state detection means.

Claims (4)

(57) [Claims] 1. A projection display device for projecting and displaying an image on a screen provided in front thereof , wherein focus information (focus position) of a projection lens, an observation position from a screen, a speaker arrangement, or an observer and a screen A storage unit storing the guidance information including the height relation of the room or the brightness of the room, and the guidance information stored in the storage unit corresponding to the focus information (focus position) of the projection lens. A projection display device comprising: a selection unit; and a display unit that displays guidance information based on a selection result of the selection unit. 2. A projection display device for projecting an image on a screen provided in front and displaying the image, wherein an observation position from a screen, a speaker arrangement, or an observer corresponds to a distance between the display device and the screen. And storage means for storing guidance information including the height relationship of the screen or the brightness of the room; and selection means for selecting the guidance information stored in the storage means corresponding to the distance between the display device and the screen. And a display unit for displaying guidance information based on a selection result of the selection unit. 3. A projection display device for projecting an image on a screen provided in front thereof and displaying the image, a storage means for storing focus information (focus position) of the projection lens and guidance information in a corresponding manner, and a projection lens. Selection means for selecting guidance information stored in the storage means corresponding to the focus information (focus position) of the present invention, and display means for displaying guidance information corresponding to the selection result of the selection means including a graphic. A projection display device characterized by the above-mentioned. 4. A projection display device for projecting an image on a screen provided in front and displaying the image, comprising: storage means for storing guidance information corresponding to a distance between the display device and the screen; Selecting means for selecting guidance information stored in the storage means corresponding to the distance to the screen; anddisplay means for displaying guidance information corresponding to a selection result of the selecting means including a graphic. Characteristic projection display device.