JPH04237323A - Display device with indicating coordinate detecting mechanism - Google Patents

Abstract

PURPOSE:To attain the input of required coordinates of an image displayed on a display device having transmitivity of light applied to the whole surface of its display face even when a user is on a position separated from the display device by directly pointing out the image. CONSTITUTION:This system consists of a coordinate indicating device 10 for indicating input coordinates to the display device 20 by light emission, a light receiving detecting device 30 constituted of arraying photoaletectors on the back of the display face 21 like a matrix to detect the light inputted by the device 10 and a detected information input device 40 for detecting an indicated position from the detected light receiving position and inputting the detected position to an information processor 50 and a user can input required coordinates on an image displayed on the display device 20 by directly projecting the light to the coordinates.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device for an information processing device, which is equipped with a designated coordinate detection mechanism for inputting coordinates specified by a user into the information processing device.

0002

[Prior Art] Conventionally, a user often specifies certain coordinates on an image displayed on a display device of an information processing device and performs some processing on that coordinate. Light pens, joysticks, touch panels, trackballs, mice, etc. have been used as means for users to easily input coordinates on the screen into information processing devices. Using a light pen or touch panel has the advantage that the user can directly input coordinates into the image displayed on the display device, but at the same time, it is also possible to specify coordinates by directly touching the display device. Therefore, when a user uses these pointing devices to input coordinates on an image displayed on a display device into an information processing device, an essential problem is that the user moves away from the display device. The problem was that it was not possible.

[0003] In joysticks, trackballs, and mice, information is displayed on the display device of the information processing device.
By displaying a mark (hereinafter referred to as a cursor) indicating that an input has been made on the specified coordinates, the user can
A user can now input coordinates on an image displayed on a display device into an information processing device.

0004

[Problems to be Solved by the Invention] However, with these on-screen coordinate input devices, the user inputs the coordinates on the screen at a location completely unrelated to the image displayed on the display device. The user can only know the coordinates he or she has pointed to by inputting the coordinates into the information processing device and displaying the cursor on the display device at the position of the coordinates input into the information processing device. When using such a device, there is a problem in that the user lacks the feeling that he or she is directly indicating the desired coordinates for the image displayed on the display device.

[0005] An object of the present invention is to provide a display device of an information processing device, in which a user can move the desired coordinates of an image displayed on the display device even when the user is away from the display device. That image
An object of the present invention is to provide a display device with a pointing coordinate detection mechanism that allows inputting the coordinates into an information processing device by directly pointing at the coordinates.

[0006]

[Means for Solving the Problems] A display device with an indicated coordinate detection mechanism according to the present invention is a display device of an information processing device that emits light to indicate input coordinates to the display device from a position away from the display device. A coordinate indicating device that performs the process, a light receiving position detecting device in which light receiving elements are arranged in a matrix on the back side of a display surface and detects the position of light received from the coordinate indicating device, and a detection device that inputs the detected light receiving position to an information processing device. It has an information input device.

[0007]

[Operation] In this invention, the information processing device can be displayed even when the user is away from the display device by directly pointing to the coordinates on the image displayed on the display device with light. You can input the indicated coordinates.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of a display device with a designated coordinate detection mechanism according to the present invention. Display device 20
The target is a type of display device in which a display light source 22 is provided on the back side of the display surface, and the display surface itself is transparent to light from the front surface. In this embodiment, a liquid crystal display will be explained as an example. Images of graphical output etc. of the information processing device 50
is displayed on the display device 20. A user operates the coordinate pointing device 10 to point to the image displayed on the display device 20 with respect to this displayed image. The coordinate pointing device 10 has a built-in light emitting element such as a semiconductor laser, and can emit strong light in the direction indicated by the light emitting element. The display surface 21 on which the output image of the display device 20 is displayed can transmit the light emitted by the coordinate indicating device 10.

As shown in FIG. 2, on the back side of the display surface 21 on which the image of the display device 20 is displayed, a light receiving element (in FIG. The light-receiving position detecting device 30 is provided with a light-receiving surface in which diodes (31) are arranged in a matrix. Reference numeral 40 denotes a detection information input device, which includes a noise filter 41, a designated position detection device 42, and a designated coordinate stabilization device 43. The light emitted by the coordinate indicating device 10 is transmitted through the display surface 21, and is received by the light receiving element 31 on the light receiving position detecting device 30. After the output of the light-receiving element 31 that receives the light passes through the noise filter 41, the indicated position detection device 42 outputs the coordinates of the light-receiving element that received the light, thereby making it possible to specify the output. Coordinate indicating device 10
The light receiving surface of the light receiving position detection device 30 is Light receiving elements 31 arranged above
Since the number of display light sources 22 can be kept to a fairly small number, it is possible to sufficiently transmit the light from the display light source 22, and the light receiving surface can be positioned between the display surface 21 and the display light source 22. Due to camera shake when the user operates the coordinate indicating device 10, the coordinates of the light receiving elements around the light receiving element 31 located at the position the user is aiming for may be output irregularly. On the other hand, by absorbing this effect by the indicated coordinate stabilizing device 43, stable coordinate output can be obtained. Information processing device 50
The output of the indicated coordinate stabilizing device 43 is inputted to the input coordinate system. The information processing device 50 uses this input value as the coordinate indicated by the coordinate indicating device 10, performs necessary processing, and displays the coordinate indicating device 10 on the image displayed on the display device 20.
By displaying the position cursor of the coordinates pointed to by the user, the user is given feedback of the position of the coordinates pointed to by the user.

0010

Effects of the Invention As described in detail above, the display device with a coordinate detection mechanism according to the present invention has a light source for display provided on the back side of the display surface, and the display surface itself is not exposed to light from the front. In a transparent display device of an information processing device, a user uses a coordinate indicating device equipped with a light emitting element such as a laser beam, and a light receiving position detecting device having a light receiving surface in which light receiving elements are arranged in a matrix. is provided on the back of the display surface, so that 1) the user can input the indicated coordinates into the information processing device by directly pointing to the coordinates on the image displayed on the display device, and 2) This has the effect of improving operability and convenience by allowing the user to input designated coordinates into the information processing device even when the user is away from the display device.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an example of the configuration of an embodiment of a display device with a designated coordinate detection mechanism according to the present invention.

FIG. 2 is a diagram showing a configuration example of a light receiving position detection device in the embodiment of FIG. 1;

[Explanation of symbols]

10 Coordinate indicating device 20 Display device 21 Display surface 22 Display light source 30 Light receiving position detection device 31 Photo receiving element 40 Detection information input device 41 Noise filter 42 Indication position detection device 43 Indicated coordinate stabilization device 50 Information processing device

Claims (1)

[Claims] Claim 1: In a display device for an information processing device, in which a light source for display is provided on the back side of the display surface, and the display surface itself is transparent to light from the front, a display device located far from the display device is provided. a coordinate indicating device that emits light to indicate input coordinates to a display device from a position; and a light receiving position detection device that detects a position of receiving light from the coordinate indicating device, in which light receiving elements are arranged in a matrix on the back side of the display surface. 1. A display device with an indicated coordinate detection mechanism, comprising: a display device; and a detected information input device for inputting the detected light receiving position to the information processing device.