JP2009032027A - Display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device capable of performing display reduced in parallax by correcting the parallax with a simple configuration without requesting input operation to an operator. <P>SOLUTION: This display device 1 is provided with an information processor 14 functioning as a display position correction means. The information processor 14 calculates position correction quantity for correcting the display position of an image based on coordinates input to a coordinate input means 12; the position of an operator detected by a position detection means 13; an input distance between the coordinate input means and a display means and an operation distance between the operator and the display face of the display means, and corrects the display position of the image based on the position correction quantity. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a display device, and more particularly to a display device in which coordinate input means having translucency is laminated on a display surface of a display means.

  A display device in which a coordinate input means having translucency, a so-called touch panel, is provided on a display surface of a display means, and a touch panel at a position where an operator wants to display a target image (hereinafter sometimes referred to as “object”). The target image is displayed at the touched position by touching and inputting coordinates.

  Since the display surface of the display means and the touch panel are provided apart from each other, when the operator operates the display surface while viewing the display surface from an oblique direction, the touch position of the touch panel that the operator touches as a position to display the object, that is, the operation There is a mutual displacement, that is, parallax, between the coordinate input position by the user and the object display position by the display means.

  A first conventional technique for correcting parallax is disclosed in Patent Document 1. In the technique disclosed in Patent Document 1, in order to correct the display position of an object, a reference position image representing a reference position is displayed on a display unit, and coordinates are input to an operator so as to indicate the displayed reference position image. The display position is corrected based on the difference between the reference position and the input coordinate position represented by the input coordinates.

  A second conventional technique for correcting parallax is disclosed in Patent Document 2. In the technique disclosed in Patent Document 2, voice input means is provided, the position of the operator is identified from the direction of the operator's voice input to the voice input means, and the object display position is determined based on the operator's position. Correct. Specifically, the direction of the operator's viewpoint is obtained based on the position of the operator, and the display position of the object is corrected based on the obtained direction of the viewpoint.

JP 63-1226027 A (page 3-4, FIG. 4-5) JP-A-8-101746 (pages 3-4, FIGS. 3-4, 7)

  In the technique disclosed in Patent Document 1, it is necessary for the operator to input the coordinates of the reference position image, and the operation is complicated. Further, when the operator moves the position after inputting the coordinates of the reference position image, the object is displayed at the display position corrected based on the position of the operator before the movement, so that parallax occurs. In order to correct the parallax, it is necessary to input the coordinates of the reference position image every time the operator moves the position, and it is impossible to immediately respond to the movement of the operator.

  In the technique disclosed in Patent Document 2, it is possible to correct the display position of the object without requiring the operator to input coordinates, but there is room for improvement in the technique disclosed in Patent Document 2. . For example, in the technique disclosed in Patent Document 2, since the display position of the object is corrected by obtaining the direction of the operator's viewpoint, complicated calculation is required to correct the display position, and a complicated configuration is required for the calculation. Circuit is required.

  An object of the present invention is to provide a display device capable of correcting a parallax and performing a display with reduced parallax with a simple configuration without requiring an input operation from an operator.

The present invention includes display means for displaying an image on a display surface;
Coordinate input means that has translucency, is provided on the display surface of the display means, and has coordinates input by an operator;
Position detecting means for detecting the position of the operator;
Display position correction means for correcting the display position of the image on the display surface of the display means,
The display position correction means is
The coordinates input to the coordinate input means, the position of the operator detected by the position detection means, the input distance between the coordinate input means and the display surface of the display means, and the operator and the display surface of the display means The display device is characterized in that a position correction amount for correcting the display position of the image is obtained based on the operation distance between the images, and the display position of the image is corrected based on the position correction amount.

In the present invention, the position detecting means
It includes a pyroelectric infrared sensor capable of detecting infrared rays radiated in front of the display direction of the image by the display means rather than the coordinate input means and capable of detecting infrared rays.

In the present invention, the position detection means includes a plurality of the pyroelectric infrared sensors,
The plurality of pyroelectric infrared sensors are arranged side by side in the arrangement direction parallel to the display surface of the display means,
The display position correction means is
When infrared rays are detected by multiple pyroelectric infrared sensors, the position of the pyroelectric infrared sensor located at the center between both ends in the arrangement direction is operated among the multiple pyroelectric infrared sensors that have detected infrared rays The position correction amount is obtained as a person's position.

In the present invention, the position detecting means
It is configured to be installed on the floor surface in the front of the display direction of the image by the display means rather than the coordinate input means, and includes a pressure detection means capable of detecting the applied pressure.

In the present invention, the pressure detection means includes a plurality of pressure detection units arranged in an arrangement direction parallel to the display surface of the display means,
The display position correction means is
When the pressure is detected by the plurality of pressure detectors, among the plurality of pressure detectors that have detected the pressure, the position of the pressure detector located at the center between both ends in the arrangement direction is set as the operator's position, The position correction amount is obtained.

The present invention also includes posture detection means for detecting the posture of the operator,
The display position correction means is
A posture correction amount for correcting the position of the operator detected by the position detection unit is obtained based on the posture of the operator detected by the posture detection unit, and the position of the operator is determined based on the posture correction amount. Correction is performed, and the position correction amount is obtained based on the corrected operator position.

In the present invention, the posture detecting means is
Two position detection means for detecting the position of the operator in a second direction that is provided at different positions with respect to the first direction parallel to the display surface and that is parallel to the display surface and orthogonal to the first direction are included. It is characterized by.

In the present invention, the display position correcting means includes
The position of the operator detected by the two position detection means for posture, the detection interval between the two position detection means for posture, and the position of the operator's viewpoint in the first direction and the position detection means for posture The posture correction amount is obtained based on the viewpoint distance.

The present invention also includes a distance measuring means for measuring the operation distance between the operator and the display surface of the display means,
The display position correcting means is characterized in that the position correction amount is obtained based on the operation distance measured by the distance measuring means.

Further, the present invention is configured such that it can be installed on the floor surface on the front side in the display direction of the image by the display means rather than the coordinate input means, and comprises a pressure detection means capable of detecting the applied pressure,
The pressure detection means includes a plurality of pressure detection units arranged in a matrix in the arrangement direction parallel to the display surface of the display means and the display direction orthogonal to the arrangement direction,
Among the plurality of pressure detection units, the plurality of pressure detection units arranged in the arrangement direction function as the position detection unit, and the plurality of pressure detection units arranged in the display direction are the distance measurement unit. It functions as.

  According to the present invention, the display surface on which the image of the display unit is displayed is provided with the coordinate input unit having translucency, and the coordinate is input to the coordinate input unit by the operator. The position of the operator who inputs the coordinates is detected by the position detection means. The display position correction means includes coordinates input to the coordinate input means, an operator position detected by the position detection means, an input distance that is a distance between the coordinate input means and the display surface of the display means, A position correction amount for correcting the display position of the image on the display surface is obtained based on the operation distance that is a distance between the person and the display surface of the display means, and based on the obtained position correction amount, Correct the display position. As a result, the position shift between the position indicated by the coordinates input to the coordinate input means and the position at which the operator wants to display the image without requiring the operator to input data such as inputting the coordinates of the reference position. The parallax can be corrected and an image can be displayed on the display surface of the display means. Further, the display position correction means obtains the position correction amount based on the input coordinates, the operator's position, the input distance, and the operation distance, so that it can be realized with a simple configuration. Therefore, it is possible to realize a display device that can perform display with reduced parallax by correcting parallax with a simple configuration without requiring an operator to perform input work.

  According to the invention, the position detecting means includes a pyroelectric infrared sensor. This pyroelectric infrared sensor is provided so as to be able to detect infrared rays emitted in front of the display direction of the image by the display means rather than the coordinate input means. Thereby, the position of the operator is detected by detecting the infrared rays emitted from the operator who operates the display device on the front side in the display direction of the image by the display means rather than the coordinate input means by the pyroelectric infrared sensor. Can do. Therefore, the position detecting means can be realized with a simple configuration.

  According to the invention, the position detection means includes a plurality of pyroelectric infrared sensors arranged side by side in an arrangement direction parallel to the display surface of the display means, and each pyroelectric infrared sensor emits radiation from the operator. Detecting infrared rays. When infrared rays are detected by multiple pyroelectric infrared sensors, the position of the pyroelectric infrared sensor located at the center between both ends in the arrangement direction is operated among the multiple pyroelectric infrared sensors that have detected infrared rays As the person's position, a position correction amount is obtained by the display position correction means. Thus, by detecting the infrared rays emitted from the operator by the plurality of pyroelectric infrared sensors, the position of the operator can be detected more accurately. Accordingly, since the parallax can be corrected with higher accuracy, a display device in which the parallax is more reliably reduced can be realized.

  According to the invention, the position detection means includes pressure detection means. This pressure detection means is configured to be installed on the floor surface in the front of the display direction of the image by the display means rather than the coordinate input means. As a result, the pressure detection means is installed on the floor surface in the front of the display direction of the image by the display means rather than the coordinate input means, and the pressure detection means gets on the front side of the display direction of the image by the display means rather than the coordinate input means. The position of the operator can be detected by detecting the pressure applied by the operator who operates the display device with the pressure detection means. Therefore, the position detecting means can be realized with a simple configuration.

  According to the invention, the pressure detection means includes a plurality of pressure detection parts arranged side by side in an arrangement direction parallel to the display surface of the display means, and the pressure applied by the operator is detected by each pressure detection part. To do. When the pressure is detected by the plurality of pressure detection units, the position of the pressure detection unit located at the center between both ends in the arrangement direction among the plurality of pressure detection units detecting the pressure is set as the position of the operator. The correction amount is obtained by the display position correction means. Thus, the position of the operator can be detected more accurately by detecting the pressure applied from the operator by the plurality of pressure detectors. Accordingly, since the parallax can be corrected with higher accuracy, a display device in which the parallax is more reliably reduced can be realized.

  According to the invention, the posture of the operator is detected by the posture detection means, and the posture correction amount for correcting the position of the operator detected by the position detection means based on the detected posture of the operator. Is obtained by the display position correcting means, the position of the operator is corrected based on the posture correction amount, and the position correction amount is obtained based on the corrected operator position. As a result, the parallax can be corrected with higher accuracy, so that a display device in which the parallax is more reliably reduced can be realized.

  According to the invention, the posture detection means includes two posture position detection means. The two position detection means for posture are provided at different positions with respect to the first direction parallel to the display surface, and detect the position of the operator in the second direction parallel to the display surface and orthogonal to the first direction. Accordingly, when the operator operates the display device in a state where the operator is inclined with respect to the first direction, the operator can detect the position of the operator at different positions with respect to the first direction by the two position detection means for posture. Can be detected. Therefore, the posture detecting means can be realized with a simple configuration.

  Further, according to the present invention, the display position correcting means includes an operator position acquired by the two posture position detecting means, a detection interval that is an interval between the two posture position detecting means, and a first direction. Based on the viewpoint distance that is the distance between the position of the operator's viewpoint and the position detection means for posture, the posture correction amount is obtained. Thus, the display position correction unit that can obtain the posture correction amount and can correct the position of the operator detected by the position detection unit based on the posture correction amount can be realized with a simple configuration.

  According to the invention, the distance measuring means measures the operation distance, which is the distance between the operator and the display surface of the display means, and the display position correcting means corrects the position based on the measured operation distance. A quantity is required. As a result, the position correction amount can be obtained based on a more accurate operation distance than when the operation distance is determined in advance, and thus the parallax can be corrected with higher accuracy. Therefore, it is possible to realize a display device in which parallax is more reliably reduced.

  Further, according to the present invention, the pressure detection means is configured to be installed on the floor surface in front of the display direction of the image by the display means rather than the coordinate input means, and arranged in an arrangement direction and an arrangement direction parallel to the display surface of the display means. It includes a plurality of pressure detectors arranged in a matrix in the orthogonal display direction, and each pressure detector detects the pressure applied by the operator. Among the plurality of pressure detection units, the plurality of pressure detection units arranged side by side in the arrangement direction function as position detection means, and the plurality of pressure detection units arranged side by side in the display direction function as distance measurement means. To do. Therefore, since the position of the operator and the operation distance between the operator and the display surface of the display means can be obtained by the pressure detection means, an increase in the number of parts can be suppressed.

  FIG. 1 is a block diagram showing an electrical configuration of a display device 1 according to a first embodiment of the present invention. FIG. 2 is a perspective view showing the display device 1 according to the first embodiment of the present invention. The display device 1 includes a display unit 11, a touch panel 12 that is a coordinate input unit, a position detection unit 13, an information processing device 14, a scanner 15, a printer 16, and a pedestal 17 that supports the display unit 11. .

  The display means 11 is realized by a liquid crystal display (abbreviated as LED), for example. The display means 11 is a large LCD, and a display surface 11a, which is a surface on the side where an image is displayed, has, for example, a rectangular shape having a long side portion of about 1200 mm and a short side portion of about 700 mm.

  The touch panel 12 is provided by being laminated on the front surface of the display unit 11, that is, the display surface 11 a of the display unit 11. The touch panel 12 has translucency. Specifically, at least a portion of the touch panel 12 that is stacked on a display area that is an area on which the image of the display surface 11a of the display unit 11 is displayed has a light-transmitting property and has a light-transmitting property. The transmission member is made of a light material such as glass. Therefore, the image displayed in the display area of the display surface 11a of the display unit 11 is displayed through the transmissive member constituting the touch panel 12, and is visually recognized by the operator.

  Coordinates are input to the touch panel 12 by an operator. The operator inputs coordinates to the touch panel 12 by a touch operation of touching the touch panel 12. The operator performs a touch operation on the touch panel 12 by bringing the touch pen 41, which is an operation member shown in FIGS. The touch panel 12 detects the part touched by the operator, that is, the coordinates of the touch part.

  The position detection means 13 detects the position of the operator, specifically the position of the operator in the horizontal direction. A specific configuration of the position detection unit 13 will be described later.

  The information processing apparatus 14 is connected to the display unit 11 and outputs information for displaying an image on the display unit 11. The display unit 11 is controlled by the information processing apparatus 14 to display an image based on a touch operation on the touch panel 12. Accordingly, various information can be displayed on the display unit 11 based on a touch operation on the touch panel 12. The information processing apparatus 14 functions as a control unit.

  The pedestal 17 includes a base 21 that comes into contact with the floor surface, and two legs 22 that connect the base 21 and the display means 11. The base 21 includes two casters 23 that are moving wheels for moving the display means 11. A scanner 15 for reading a document and a printer 16 are provided between the two legs 22. The scanner 15 reads a document and inputs it to the information processing device 14. Two openings 24 are formed in the housing 15 a of the scanner 15. Of the two openings 24, the scanner 15 carries in the original from the opening of the opening 24a vertically above, and discharges the original from the opening of the opening 24b vertically below. The printer 16 is a device that outputs an image displayed on the display unit 111.

  FIG. 3 is a plan view showing the configuration of the touch panel 12. The touch panel 12 is configured by a transmissive member made of a translucent material such as glass. The touch panel 12 has a rectangular shape, and two LED arrays 32 and 33 for detecting a touch position 31 by the touch pen 41 and two phototransistor arrays 34 and 35 are provided on four sides constituting the outer peripheral edge. Prepare.

  As shown in FIG. 2 described above, the touch panel 12 and the display unit 11 are arranged and used so that the long side portion is parallel to the horizontal direction. Hereinafter, one direction parallel to the long side portion of the touch panel 12 is referred to as an “X direction”, and one direction parallel to the short side portion, that is, a direction orthogonal to the X direction is referred to as a “Y direction”, and is perpendicular to the X direction and the Y direction. One direction is referred to as “Z direction”. Of both Z directions, that is, one Z1 in the Z direction and the other Z2 in the Z direction, the Z direction one Z1 is set as a display direction which is a direction in which an image on the display surface 11a of the display unit 11 is displayed.

  An X-direction phototransistor array 34 is provided on the upper side of the touch panel 12, that is, a long side disposed on the upper side in the vertical direction, and an X-direction LED array 32 is provided on the lower side, that is, the long side disposed on the lower side in the vertical direction. The Y-direction phototransistor array 35 is provided on the right side, that is, the short side disposed on the right side of the touch panel 12, and the Y side is disposed on the left side, ie, the short side disposed on the left side of the touch panel 12. An LED array 33 is provided.

  The X direction LED array 32 includes a plurality of light emitting diodes (abbreviated as LEDs) arranged in the X direction, and the Y direction LED array 33 includes a plurality of LEDs arranged in the Y direction. The X direction phototransistor array 34 includes a plurality of phototransistors arranged side by side in the X direction, and the Y direction phototransistor array 35 includes a plurality of phototransistors arranged side by side in the Y direction.

  When the touch pen 41 as an operation member touches the transmissive member 12a of the touch panel 12, the LED light passing through the touched position is blocked by the touch pen 41 and does not reach the phototransistor. The touch panel 12 outputs the coordinates of the phototransistor that has not reached as designated coordinates. In the example shown in FIG. 3, the coordinates (Xi, Yi) correspond to these coordinates.

  The information processing apparatus 14 controls the display unit 11 to display an image, specifically a predetermined object, at the position on the display surface 11a of the display unit 11 corresponding to the coordinate position input to the touch panel 12. . An object is, for example, a point image. The operator traces the surface of the touch panel 12 with the touch pen 41, specifically, the surface of the transmissive member, thereby causing the object of the point image to be continuously displayed on the display surface 11a. Can be drawn on the display surface 11a. The object is not limited to a point image, and may be a predetermined fixed figure such as a straight line, a circle, a triangle, or a rectangle.

  FIG. 4 is a front view showing a simplified configuration of the display device 1 according to the first embodiment of the present invention. FIG. 5 is a plan view showing a simplified configuration of the display device 1 according to the first embodiment of the present invention. FIG. 5 is a plan view of the display device 1 as viewed from above in the vertical direction. 4 and 5 show the positional relationship between the display device 1 and the operator 40. FIG.

  The position detection means 13 is a pressure detection means in this embodiment. The pressure detection unit 13 includes a plurality of pressure detection units 50. The pressure detection means 13 is configured to be installable on the floor surface on the front side in the display direction of the display surface 11a of the display means 11, that is, on the floor surface on the one Z1 side in the Z direction with respect to the display surface 11a. That is, the pressure detection means 13 is provided on the opposite side of the display surface 11 a of the display means 11 with the coordinate input means 12 interposed therebetween.

  In this embodiment, the pressure detection means 13 is what is called a sheet switch formed in a sheet shape. Each pressure detection unit 50 of the sheet switch 13 which is a pressure detection means is pressed on the upper surface, that is, the surface on one side in the thickness direction and disposed on the upper side in the vertical direction when installed on the floor surface. Then, the contacts are connected and turned on. That is, each pressure detection unit 50 functions as a switch. The plurality of pressure detectors 50 are arranged side by side in the arrangement direction parallel to the display surface 11a of the display means 11, in the present embodiment, the X direction. That is, the plurality of pressure detection units 50 are arranged at different positions with respect to the X direction, and each pressure detection unit 50 is assigned coordinates in the X direction.

  When the operator 40 stands on the seat switch 13, the pressure detection unit 50 at the position where the operator 40 stands is pressed, and the contact is connected to be turned on. Thereby, since it is detected that the pressure is applied from the operator 40 to the pressure detection unit 50, the position of the operator 40 can be detected from the coordinates of the switch 50 which is the pressed pressure detection unit. For example, when the operator 40 is standing and operating as shown in FIGS. 4 and 5, the standing position of the operator 40 can be detected. The position of each pressure detection unit 50 corresponds to the position coordinate X2 that represents the position of the operator 40.

  FIG. 6 is a block diagram showing an electrical configuration of the pressure detection means 13. The pressure detection means 13 includes a plurality of switches S that are the above-described pressure detection unit 50 and a parallel input / output (I / O) unit 51. FIG. 6 shows a state where the contacts of each switch 50 are not connected, that is, an off state. The parallel I / O unit 51 includes a plurality of input terminals 52 connected to the switch S, that is, first to n-th input terminals i1 to in, and a power supply terminal 53 that supplies power to each input terminal 52. The same number of input terminals 52 as the switches S are provided. That is, the pressure detection means 13 includes n switches S1 to Sn and n input terminals i1 to in. “N” represents an integer of 1 or more. Each switch S is connected to a corresponding input terminal 52. The nth switch Sn is connected to the nth input terminal in.

  When the contacts of the switch 50 are connected and turned on, the switch 50 becomes conductive and a current flows through the corresponding input terminal 52. Thereby, it is detected that the switch 50 is turned on. The parallel I / O unit 51 is connected to the information processing apparatus 14 illustrated in FIG. 1, and the output value of the input terminal 52 is output to the information processing apparatus 14. The information processing apparatus 14 acquires the position X2 of the operator 40 from the output result output from the pressure detection unit 13.

  In this embodiment, since the pressure detection means 13 includes a plurality of pressure detection sections 50, the plurality of pressure detection sections 50 are turned on when the operator 40 stands on the pressure detection means 13 as shown in FIG. That is, the pressure may be detected by the plurality of pressure detection units 50. In this case, the information processing apparatus 14 is in an ON state, that is, among the plurality of pressure detection units 15 that have detected the pressure, the pressure detection unit 50 located at the center between both ends in the X direction that is the arrangement direction. The position is calculated and acquired as the position X2 of the operator 40.

  Specifically, in calculating the position X2 of the operator 40, the information processing apparatus 14 is the leftmost end, that is, the coordinate of the pressure detection unit 50 on the one side in the X direction among the plurality of ON-state pressure detection units 50. Then, the coordinate of the pressure detection unit 50 that is intermediate between the rightmost end, that is, the coordinate of the pressure detection unit 50 on the other side in the X direction is calculated as the position X2 of the operator 40.

  For example, as shown in FIG. 4, when the three pressure detection units Sa, Sb, and Sc are turned on, the information processing apparatus 14 is the most out of the three pressure detection units Sa, Sb, and Sc that are turned on. Coordinates representing the position of the pressure detection unit Sb that is intermediate between the coordinate (X21) of the pressure detection unit Sa on the one side in the X direction that is the left end and the coordinate (X22) of the pressure detection unit Sc on the other side in the X direction that is the right end Are obtained as coordinates X2 representing the position of the operator 40. When there are an even number of pressure detection units 50 in the ON state, among the pressure detection units 50 in the ON state, the pressure detection unit 50 on the one side in the X direction and the pressure detection unit 50 on the other side in the X direction. Is obtained as coordinates X2 representing the position of the operator 40.

  In the present embodiment, the information processing apparatus 14 functions as a display position correction unit. The information processing apparatus 14 includes coordinates input to the coordinate input unit 12 (hereinafter also referred to as “input coordinates”) and a position of the operator 40 detected by the pressure detection unit 13 serving as a position detection unit (hereinafter referred to as “operation position”). The input distance L1 which is the distance between the coordinate input means 12 and the display surface 11a of the display means 11, and the operation distance L2 which is the distance between the operator 40 and the display surface 11a of the display means 11. Based on the above, the display position of the image, specifically, the object is corrected. More specifically, the information processing apparatus 14 obtains a position correction amount for correcting the display position of the object, and corrects the display position of the object based on the obtained position correction amount.

  The input distance L1 is obtained by actual measurement at the stage of manufacturing the display device 1, and is stored in a storage unit (not shown) of the information processing device 14. In the present embodiment, the operation distance L2 is set in advance and stored in a storage unit (not shown) of the information processing apparatus 14. That is, the information processing apparatus 14 includes a storage unit that functions as a storage unit that stores the input distance L1 and the operation distance L2.

  FIG. 7 is a diagram for explaining how the information processing apparatus 14 calculates the position correction amount. FIG. 7A is a plan view showing the positional relationship between the display device 1 and the operator 40. As shown in FIG. 7A, the transmission member 12 a of the touch panel 12 that is a coordinate input unit and the display unit 11 are provided at a predetermined interval so as not to disturb the heat radiation from the display unit 11. As a result, convective heat dissipation is achieved.

  Thus, since the transmissive member 12a of the touch panel 12 and the display unit 11 are provided with a space therebetween, when the operator 40 operates the display surface 11a as viewed obliquely from the front, the line of sight 40a of the operator 40 is displayed on the display surface 11a. Tilt against. Therefore, when the operator 40 wants to display an object at the position indicated by the reference symbol 61, the operator 40 is indicated by the reference symbol 60 instead of the position of the touch panel 12 corresponding to the position indicated by the reference symbol 61. The position of the touch panel 12 corresponding to the position is designated with the touch pen 41, and coordinates are input. Since the coordinates of the position indicated by the reference mark 60 are input in this way, if the display position of the object is not corrected, the object is positioned at the position indicated by the reference mark 60, that is, the position corresponding to the input coordinates to the touch panel 12. Is displayed.

  The distance between the touch panel 12 and the display surface 11 a of the display means 11, specifically, the front side in the display direction of the transmissive member 12 a of the touch panel 12, that is, the surface on the operator 40 side, and the front surface in the display direction of the display means 11. An input distance L1 that is a distance from a certain display surface 11a is set to 20 mm, for example. The operation distance L2 that is the distance between the operator 40 and the display surface 11a of the display means 11 is set to a standard distance, that is, an average distance of the operation distance L2 of each operator 40, for example, 300 mm.

  Specifically, the information processing apparatus 14 includes the input coordinate X1 in the X direction and the position detection unit 13 among the input coordinates (X1, Y1) input to the coordinate input unit 12 by the operator 40 via the touch pen 41. Based on the operation position X2, the input distance L1, and the operation distance L2 detected by the operator 40, a position correction amount is obtained, and based on the position correction amount, among the display coordinates representing the display position of the object, A horizontal coordinate (hereinafter referred to as “horizontal coordinate”) X3 which is the X direction is calculated.

FIG. 7B is a diagram schematically showing the relationship between the input coordinate X1, the operation position X2, the corrected horizontal coordinate X3, the input distance L1, and the operation distance L2. In FIG. 7B, the coordinate Z1 indicates a coordinate whose distance from the coordinate X1 in the Z direction including the display direction Z1 coincides with the input distance L1, and the coordinate Z2 is the coordinate X2 in the Z direction including the display direction Z1. Indicates the coordinates at which the interval of? Matches the operation distance L2. As shown in FIG. 7B, since the triangle having the vertices at the three points X3, X2, and Z2 and the triangle having the vertices at the three points X3, X1, and Z1 are similar, the input coordinates X1, the operation position X2, the horizontal coordinate X3 of the corrected object, the input distance L1, and the operation distance L2 satisfy the relationship of the following formula (1).
(X2-X3) / (X1-X3) = L2 / L1 (1)

The absolute value of (X1-X3) in Equation (1) corresponds to the position correction amount. In this embodiment, instead of obtaining the position correction amount itself, the corrected horizontal coordinate X3 of the object is calculated from the following formula (2) obtained by modifying the formula (1). Calculation of the horizontal coordinate X3 corresponds to obtaining the position correction amount. Thus, the horizontal coordinate X3 of the object can be calculated based on the following mathematical formula (2).
X3 = (L2 · X1−L1 · X2) / (L1−L2) (2)

  The horizontal coordinate X3 calculated in this way becomes the X coordinate of the display coordinates of the corrected object. The Y coordinate of the input coordinates (X1, Y1) is used as the coordinate in the Y direction that is the vertical direction of the corrected object. The object is displayed on the display surface 11a at the position 61 corresponding to the corrected display coordinates (X3, Y1) of the object thus obtained.

  FIG. 8 is a flowchart illustrating a processing procedure of display position correction processing by the information processing apparatus 14. The display position correction process is executed by the information processing apparatus 14. When the display of the image by the display means 11 is started, the display position correction process is started in step a1, and the process proceeds to step a2.

  In step a2, the information processing apparatus 14 determines whether or not the coordinate input unit 12 has specified coordinates with the touch pen 41, that is, whether or not the input coordinates (X1, Y1) have been input. Specifically, the information processing apparatus 14 determines whether or not the designation of coordinates by the touch pen 41 is detected. If the information processing apparatus 14 determines that the coordinates have been input, the process proceeds to step a3. If the information processing apparatus 14 determines that the coordinates have not been input, the process returns to step a2 to repeat the determination of whether the coordinates have been input.

  In step a3, the information processing apparatus 14 detects the position X2 of the operator 40 based on the output result from the position detection means 13. Specifically, the information processing apparatus 14 detects a coordinate X2 in the X direction representing the position of the operator 40. When the position X2 of the operator 40 is detected in this way, the process proceeds to step a4.

  In step a4, the information processing apparatus 14 obtains a position correction amount for correcting the display position of the object, and corrects the display position of the object based on the obtained position correction amount. Specifically, the information processing apparatus 14 is configured such that, among the input coordinates (X1, Y1) input to the coordinate input unit 12, the input coordinate X1 in the X direction and the operation of the operator 40 detected by the position detection unit 13 A position correction amount is calculated based on the position X2, the input distance L1, and the operation distance L2, and the horizontal coordinate X3 of the object is calculated based on the position correction amount. When the horizontal coordinate X3 of the object is obtained in this way, the process proceeds to step a5.

  In step a5, the information processing apparatus 14 controls the display unit 11 to display the object at the display coordinates (X3, Y1) representing the display position after the correction of the object. The display unit 11 displays the object at the corrected display coordinates (X3, Y1) based on a command from the information processing apparatus 14. When the object is displayed at the corrected display coordinates (X3, Y1) in this way, the process returns to step a2, and a series of operations starting from the determination of the presence / absence of input of coordinates to the coordinate input means 12 is repeated. The display position correction process shown in FIG. 8 is repeatedly performed while an image is displayed on the display unit 11 and ends when the display of the image on the display unit 11 is completed.

  As described above, according to the present embodiment, the information processing apparatus 14 includes the coordinate X1 input to the coordinate input unit 12, the position X2 of the operator 40 detected by the position detection unit 13, the input distance L1, A position correction amount for correcting the display position of the object on the display surface 11a is obtained based on the operation distance L2, and the display position of the object is corrected based on the obtained position correction amount. Thus, without requiring the operator 40 to input the reference position coordinates, the position 40 represented by the coordinates X1 input to the coordinate input means 12 shown in FIG. The object can be displayed on the display surface 11 a of the display unit 11 by correcting the parallax, which is a positional deviation from the position 61 to be made.

  Further, the information processing apparatus 14 obtains a position correction amount based on the input coordinates X1, the position X2 of the operator 40, the input distance L1, and the operation distance L2, specifically, the corrected object horizontal Since the coordinate X3 is obtained, it is possible to realize the information processing apparatus 14 that can function as a display position correction unit with a simple configuration. Therefore, it is possible to realize the display device 1 capable of correcting the parallax and performing display with reduced parallax with a simple configuration without requiring the operator 40 to perform an input operation.

  Such a display device 1 is particularly suitable when a large screen display device such as a large liquid crystal display device is used as the display means 11 in the presentation. The display device 1 of the present embodiment does not require a correction procedure as in the prior art, and has good parallax even when the position of the touch panel 12 and the position of the display surface 11a of the display unit 11 are largely separated from each other. Can be corrected. Therefore, even when the operator frequently changes the standing position in the presentation, the object is displayed at the display position where the parallax is reduced for the operator without requiring the operator to perform an operation for parallax correction each time. Display can be performed.

  In the present embodiment, the position of the operator is detected by the pressure detection means 13 and the display position of the object is corrected based on the detected position of the operator. Compared with the case of specifying the position, the position of the operator can be specified with higher accuracy. When the operator's position is specified based on the operator's voice as in the prior art, even if the operator is not moving, a change in the operator's voice, for example, a change in volume, Although the position may change, in the present embodiment, there is no such possibility, and the position of the operator can be detected with high accuracy.

  In the present embodiment, the position detection unit 13 is a pressure detection unit, and is configured to be installed on the floor surface in front of the display direction of the image by the display unit 11 rather than the coordinate input unit 12. By installing the pressure detection means 13 on the floor surface in front of the display direction of the image by the display means 11 relative to the coordinate input means 12, the pressure detection means at the front side of the display direction of the image by the display means 11 rather than the coordinate input means 12. It is possible to detect the position of the operator 40 by detecting the pressure applied by the operator 40 who operates the display device 1 on the pressure detector 13 with the pressure detection means 13. Therefore, the position detecting means 13 can be realized with a simple configuration.

  In the present embodiment, the pressure detection unit 13 includes a plurality of pressure detection units 50 arranged side by side in the X direction, which is an arrangement direction parallel to the display surface 11 a of the display unit 11. The pressure applied from the operator 40 is detected. When the pressure applied from the operator 40 is detected by the plurality of pressure detection units 50 in this way, the pressure applied from the operator 40 is detected by one pressure detection unit 50 and the position of the operator 40 is detected. As compared with the above, the position of the operator 40 can be detected more accurately. Therefore, since the parallax can be corrected with higher accuracy, the display device 1 in which the parallax is more reliably reduced can be realized.

  FIG. 9 is a front view showing the display device 100 according to the second embodiment of the present invention. The display device 100 of the present embodiment is the same as the display device 1 of the first embodiment except for the configuration other than the position detection means 13 in the display device 1 of the first embodiment. The same reference numerals are assigned and description thereof is omitted.

  In the present embodiment, the position detection unit 130 includes a plurality of pyroelectric infrared sensors 131. The pyroelectric infrared sensor 131 is an infrared sensor that detects infrared rays emitted from a human body. Each pyroelectric infrared sensor 131 can detect infrared rays radiated on the front side in the display direction of the image by the display unit 11 relative to the coordinate input unit 12, that is, on the Z direction side Z1 side of the display surface 11a of the display unit 11. Provided. In the present embodiment, the pyroelectric infrared sensor 131 detects infrared rays emitted from an operator who operates the display device 100 on the front side of the display direction of the image by the display unit 11 rather than the coordinate input unit 12. Can be detected.

  The plurality of pyroelectric infrared sensors 131 are arranged side by side in the X direction, which is an arrangement direction parallel to the display surface 11 a of the display unit 11. The position of each pyroelectric infrared sensor 131 in the X direction corresponds to coordinates (X2) representing the position of the operator. The plurality of pyroelectric infrared sensors 131 are arranged in parallel in the horizontal direction, which is the X direction, near the lower side of the display unit 11.

  FIG. 10 is a block diagram showing an electrical configuration of the position detection means 130. The position detection unit 130 includes a plurality of sensors Q that are the pyroelectric infrared sensors 131 described above and a parallel I / O unit 132. The parallel I / O unit 132 includes a plurality of input terminals 133 connected to the switch Q, that is, first to nth input terminals i1 to in. The same number of input terminals 133 as the switches Q are provided. That is, the position detection means 130 includes n switches Q1 to Qn and n input terminals i1 to in. “N” represents an integer of 1 or more. Each switch Q is connected to a corresponding input terminal 133. The nth switch Qn is connected to the nth input terminal in.

  The parallel I / O unit 132 is connected to the information processing device 14, and the output value of each input terminal 133 is output to the information processing device 14. The information processing apparatus 14 acquires the operator's position X <b> 2 from the output result output from the position detection unit 130.

  When infrared rays are detected by the plurality of pyroelectric infrared sensors 131, the information processing apparatus 14 detects the position of the operator in the same manner as when pressure is detected by the plurality of pressure detection units 50 in the first embodiment. Get X2. Specifically, among the plurality of pyroelectric infrared sensors 131 that detect infrared rays, the position of the pyroelectric infrared sensor 131 positioned at the center between both ends in the X direction, which is the arrangement direction, is determined by the operator's position. Calculate and obtain as X2. When there are an even number of pyroelectric infrared sensors 131 that detect infrared rays, among the pyroelectric infrared sensors 131 that detect infrared rays, two focal points located at the center between both ends in the X direction, which is the arrangement direction, are used. A coordinate representing any position of the electric infrared sensor 131 is acquired as a coordinate X2 representing the position of the operator.

  As described above, in the present embodiment, the position detection unit 130 includes the pyroelectric infrared sensor 131, and the pyroelectric infrared sensor 131 detects the position of the operator. Therefore, as in the first embodiment, the position detection unit 130 can be realized with a simple configuration.

  In the present embodiment, the position detection unit 130 includes a plurality of pyroelectric infrared sensors 131 arranged in the X direction, which is an arrangement direction parallel to the display surface 11 a of the display unit 11. The sensor 131 detects infrared rays emitted from the operator. Thus, by detecting the infrared rays emitted from the operator by the plurality of pyroelectric infrared sensors 131, the position of the operator can be detected more accurately. Therefore, since the parallax can be corrected with higher accuracy, the display device 100 in which the parallax is more reliably reduced can be realized.

  In this embodiment, the position of the operator is detected by the position detector 130 including the pyroelectric infrared sensor 131 and the display position of the object is corrected based on the detected position of the operator. As compared with the case where the operator's position is specified based on the voice, the operator's position can be specified with higher accuracy. When the operator's position is specified based on the operator's voice as in the prior art, even if the operator is not moving, a change in the operator's voice, for example, a change in volume, Although the position may change, in the present embodiment, there is no such possibility, and the position of the operator can be detected with high accuracy.

  In the second embodiment described above, the pyroelectric infrared sensor 131 is provided in the vicinity of the lower side of the display unit 11, but the position of the pyroelectric infrared sensor 131 is not limited to this. The pyroelectric infrared sensor 131 may be provided so as to be able to detect infrared rays radiated in front of the display direction of the image by the display unit 11 relative to the coordinate input unit 12. For example, the image by the display unit 11 rather than the coordinate input unit 12. May be provided on the front side in the display direction.

  FIG. 11 is a block diagram showing an electrical configuration of the display device 140 according to the third embodiment of the present invention. FIG. 12 is a front view showing a display device 140 according to the third embodiment of the present invention. The display device 140 according to the present embodiment has the same configuration as the display device 100 according to the second embodiment except that the display device 140 further includes a position detection unit 142 for posture. The description is omitted.

  The display device 140 according to the present embodiment includes the position detection unit 142 for posture as described above. In the present embodiment, the position detection unit 130 functions as a posture position detection unit. The posture detection unit 141 includes the posture position detection unit 142 and the position detection unit 130. The posture detection means 141 detects the posture of the operator. Hereinafter, the position detection unit 130 is referred to as a first posture position detection unit 130, and the posture position detection unit 142 is referred to as a second posture position detection unit 142.

  The first posture position detection unit 130 and the second posture position detection unit 142 are provided at different positions with respect to the Y direction parallel to the display surface 11 a of the display unit 11. More specifically, the first posture position detection unit 130 and the second posture position detection unit 142 are provided separately in the Y direction. The first and second posture position detecting means 130 and 142 detect the position of the operator in the X direction parallel to the display surface 11a of the display means 11 and orthogonal to the Y direction. In a state where the display device 140 is used, the Y direction coincides with the vertical direction, and the X direction coincides with the horizontal direction. In the present embodiment, the Y direction corresponds to the first direction, and the X direction corresponds to the second direction.

  Similarly to the first posture position detection unit 130, the second posture position detection unit 142 includes a plurality of pyroelectric infrared sensors 131. The plurality of pyroelectric infrared sensors 131 are arranged side by side in the X direction, which is an arrangement direction parallel to the display surface 11 a of the display unit 11. The position of each pyroelectric infrared sensor 131 in the X direction corresponds to the position of the operator detected by the second posture position detection unit 142.

  The first posture position detection unit 130 is provided in the vicinity of the lower side of the display unit 11 and detects the position of the operator in the vicinity of the lower side of the display unit 11. Since the vicinity of the lower side of the display means 11 corresponds to the position of the operator's torso, the first posture position detecting means 130 functions as a torso position detecting means for detecting the position of the operator's torso. That is, the first posture position detection means 130 detects the position X4 of the operator's torso. In the present embodiment, the first posture position detection means 130 is provided so as to detect the position X4 of the operator's waist as the position X4 of the operator's torso.

  The position detection means 142 for 2nd attitude | position is provided in the position close | similar to a floor surface, specifically the base 21 of the base 17, and detects an operator's position in the position close | similar to a floor surface. The position close to the floor corresponds to the position of the operator's leg. Accordingly, the second posture position detecting means 142 detects the position X5 of the operator's leg. In the present embodiment, the position X5 of the operator's leg corresponds to the position X2 of the operator in the first and second embodiments described above. That is, in the present embodiment, the second posture position detection unit 142 corresponds to the position detection units 13 and 130 in the first and second embodiments.

  FIG. 13 is a diagram for explaining how the information processing apparatus 14 calculates the posture correction amount. FIG. 13A is a front view showing the positional relationship between the display device 140 and the operator 143. In the first and second embodiments described above, assuming that the operator 40 stands upright as shown in FIG. 4, the position X2 of the operator 40 detected by the position detection means 13, 130, The display position of the object is corrected on the assumption that the viewpoint position X6 of the operator 40 matches. As shown in FIG. 13A, when the posture of the operator 143 is inclined, there is a difference between the standing position X5 of the operator 143 and the viewpoint position X6 of the operator 141. In the present embodiment, the posture detection unit 141 detects the posture of the operator 143 and corrects the viewpoint position X6 of the operator 143.

  Specifically, in the present embodiment, the information processing apparatus 14 corrects the operator's position X5 detected by the second posture position detection unit 142 based on the operator's posture detected by the posture detection unit 141. A position correction amount for correcting the display position of the object based on the corrected position X6 of the operator, correcting the position X5 of the operator based on the calculated position correction amount Ask for.

  In more detail, the information processing apparatus 14 determines the position of the operator 143 detected by the two posture position detection units 130 and 142, that is, the body of the operator 143 detected by the first posture position detection unit 130. The position X4 and the position X5 of the leg of the operator 143 detected by the second posture position detecting means 142, the detection interval L3 that is the distance between the two posture position detecting means 130, 142, and the first direction. Based on the position X6 of the viewpoint of the operator 143 in the Y direction and the viewpoint distance L4 that is the distance between the first or second position detection means 130, 142, the second position detection means 142 A posture correction amount for correcting the detected position X5 of the operator is obtained. In the present embodiment, the viewpoint distance L4 is an interval between the viewpoint position X6 of the operator 143 and the second posture position detection unit 142.

  The detection interval L3 and the viewpoint distance L4 are set in advance in the present embodiment, and are stored in a storage unit (not shown) of the information processing apparatus 14. That is, the information processing apparatus 14 includes a storage unit that functions as a storage unit that stores the detection interval L3 and the viewpoint distance L4.

  The viewpoint distance L4 is set to a standard eye height from the second posture position detecting means 142 of the operator 143, for example, 1600 mm. This value of 1600 mm is a value estimated from an average height of 171 cm of a Japanese adult male. The viewpoint distance L4 is not limited to 1600 mm, and is appropriately set according to the height of the operator 143 who operates the display device 140. The detection interval L3 is set to a standard torso height from the second posture position detecting means 142 of the operator 143, in this embodiment, a waist height, for example, 950 mm. This value of 950 mm is a value roughly estimated as a value slightly larger than half of the average height from the average height of 171 cm of the Japanese adult male described above. The detection interval L3 is not limited to 950 mm, and is appropriately set according to the height of the operator 143 who operates the display device 140.

  The position of the body of the operator 143 (hereinafter referred to as “body position”) X4 detected by the first posture position detection means 130 and the position of the leg of the operator 143 detected by the second posture position detection means 142 (hereinafter referred to as “body position”). The absolute value of the difference value (X5-X4) from X5 (hereinafter referred to as “leg position”) is a value indicating the posture of the operator 143, and corresponds to the posture correction amount. In this embodiment, the information processing apparatus 14 replaces the determination of the posture correction amount itself with the position of the viewpoint of the operator 143 (hereinafter referred to as “viewpoint position”) from the detected body position X4 and leg position X5 of the operator 143. X6) is obtained, and a position correction amount for correcting the display position of the object is calculated based on the viewpoint position X6. Obtaining this viewpoint position X6 corresponds to obtaining the posture correction amount.

FIG. 13B is a diagram schematically showing the relationship among the body position X4, the leg position X5, the viewpoint position X6, the detection interval L3, and the viewpoint distance L4. In FIG. 13B, a coordinate Y4 indicates a coordinate whose distance from the body position X4 in the Y direction matches the detection distance L3, and a coordinate Y6 corresponds to the distance from the viewpoint position X6 in the Y direction matches the viewpoint distance L4. Indicates the coordinates to perform. As shown in FIG. 13 (b), the triangle having the three points X5, X6, and Y6 as vertices is similar to the triangle having the three points X5, X4, and Y4 as vertices. The position X5, the viewpoint position X6, the detection interval L3, and the viewpoint distance L4 satisfy the relationship of the following mathematical formula (3).
(X5-X6) / (X5-X4) = L4 / L3 (3)

Therefore, the viewpoint position X6 can be calculated based on the following mathematical formula (4) obtained by modifying the mathematical formula (3).
X6 = X5-L4 (X5-X4) / L3 (4)

  The viewpoint position X6 calculated in this way becomes the position of the operator 143 after correction. The information processing apparatus 14 calculates the corrected horizontal coordinate X3 of the object by substituting the corrected position 143 of the operator 143, which is the viewpoint position X6, into X2 of the above-described equation (1). The object is displayed on the display surface 11a at the position 61 shown in FIG. 7, which corresponds to the corrected display coordinates (X3, Y1) of the object thus obtained. As a result, the display position can be corrected in consideration of the posture of the operator 143.

  As described above, in this embodiment, the posture of the operator 143 is detected by the posture detection unit 141, and the operator detected by the second posture position detection unit 142 based on the detected posture of the operator 143. A posture correction amount for correcting the position X5 of 143 is obtained by the information processing device 14, the position of the operator 143 is corrected based on the posture correction amount, and the position of the operator 143 is determined based on the corrected position of the operator 143. A correction amount is obtained. As a result, the parallax can be corrected with higher accuracy, so that a display device in which the parallax is more reliably reduced can be realized.

  In the present embodiment, the posture detection unit 141 includes the two posture position detection units 130 and 142, and therefore, when the operator 143 operates the display device 140 while being tilted with respect to the vertical direction that is the Y direction. The posture of the operator 143 can be detected by detecting the position of the operator 143 at different positions in the vertical direction by the two posture position detection means 130 and 142. Therefore, the posture detecting means 141 can be realized with a simple configuration.

  In the present embodiment, the information processing apparatus 14 performs posture correction based on the operator positions X4 and X5, the detection interval L3, and the viewpoint distance L4 acquired by the two posture position detection units 130 and 142. Find the amount. Thus, information that can function as a display position correction unit that obtains the posture correction amount and can correct the position of the operator 143 detected by the second posture position detection unit 142 based on the posture correction amount. The processing device 14 can be realized with a simple configuration.

  In the third embodiment described above, the second posture position detection unit 142 includes the pyroelectric infrared sensor 131 and is a position detection unit that detects the position of the operator by detecting infrared rays, but is not limited thereto. Instead, it may be a pressure detecting means installed on the floor similar to the pressure detecting means 13 in the first embodiment.

  In the third embodiment, the viewpoint distance L4 is set in advance. However, the present invention is not limited to this, and the display device 140 may be configured so that the operator can set the viewpoint distance L4. Accordingly, the display position of the object can be corrected in consideration of the height difference of the operator, and thus the parallax can be corrected with higher accuracy. Therefore, it is possible to realize a display device in which parallax is more reliably reduced.

  When the display device 140 is configured so that the operator can input the height, the display device 140 includes a height input means for inputting the height by the operator, and the storage unit (not shown) of the information processing device 14 has an input The mathematical formula for calculating the viewpoint distance L4 from the height to be stored is stored. The information processing apparatus 14 calculates the viewpoint distance L4 based on the height of the operator input from the height input unit. The mathematical formula for calculating the viewpoint distance L4 is, for example, a mathematical formula for subtracting the height H1 from the floor of the second posture position detecting means 142 from the input height H2. A value (H2−H1) obtained by subtracting the height H1 from the floor surface of the second posture position detection unit 142 from the input height H2 is the viewpoint distance L4.

  The display devices 1, 100, 140 according to the first to third embodiments described above are configured to set the operation distance L2 in advance. However, the present invention is not limited to this, and the operator can input the operation distance L2. It may be comprised, and it may be comprised so that a ranging means may be provided and the operation distance L2 may be measured.

  When the display device includes distance measuring means, the distance measuring means measures an operation distance L2 that is a distance between the operator and the display surface 11a of the display means 11, and based on the measured operation distance L2, A position correction amount is obtained by the information processing device 14 which is a display position correcting means. Accordingly, the position correction amount can be obtained based on a more accurate operation distance than when the operation distance L2 is determined in advance, so that the parallax can be corrected with higher accuracy. Therefore, it is possible to realize a display device in which parallax is more reliably reduced. As the distance measuring means, for example, a pressure detecting means can be used.

  FIG. 14 is a plan view showing a pressure detection means 150 which is another example of the pressure detection means. Similar to the pressure detection means 13 in the first embodiment, the seat switch 150 as the pressure detection means is a floor surface on the front side in the display direction of the image by the display means 11 rather than the coordinate input means 12, that is, the display surface 11a. It is configured to be installable on the floor surface on the one Z1 side in the Z direction, and includes a plurality of pressure detectors 50.

  In the pressure detection unit 150, the plurality of pressure detection units 50 are arranged in a matrix in the Z direction including the X direction that is the arrangement direction parallel to the display surface of the display unit 11 and the Z1 direction that is the display direction orthogonal to the arrangement direction. Arranged side by side. Therefore, the pressure detection means 150 can detect the XZ coordinate. The position X2 of the operator can be detected by the pressure detection means 150, and the operation distance L2 that is the distance between the display surface 11a of the display means 11 and the operator can be measured. That is, the pressure detection unit 150 functions as a position detection unit that detects the position of the operator and a distance measurement unit that measures the operation distance L2.

  In obtaining the operation distance L2, the plurality of pressure detection units 50 are simultaneously turned on, but the information processing apparatus 14 is the most in the pressure detection unit 50 in the on state toward the paper surface of FIG. The position of the pressure detection unit 50 between the front side, that is, the pressure detection unit 50 on the most Z direction side and the pressure detection unit 50 on the back side, that is, the most Z direction side, is output as the operation distance L2. To do. When there are two pressure detectors 50 in the middle, one position is output.

  Thus, according to the pressure detection means 150, since the operator's position X2 and the operation distance L2 between the operator and the display surface of the display means can be obtained, an increase in the number of parts can be suppressed. . The distance measuring means is not limited to the pressure detecting means 150, and for example, a distance measuring device using ultrasonic waves may be used. As an ultrasonic distance measuring device, for example, there is a device described in Japanese Patent Laid-Open No. 58-22983.

  In the above embodiment, the space | interval of the pressure detection parts 50 and the space | interval of the pyroelectric infrared sensors 131 are chosen, for example, about 10 mm. Since the distance between the operator's hand and the eyes is about 1000 m at maximum, 10 mm, which is about 1% of the distance measurement accuracy, that is, 1% of 1000 mm, is sufficient.

It is a block diagram which shows the electric constitution of the display apparatus 1 of 1st Embodiment of this invention. 1 is a perspective view showing a display device 1 according to a first embodiment of the present invention. 3 is a plan view showing a configuration of a touch panel 12. FIG. It is a front view which simplifies and shows the structure of the display apparatus 1 of 1st Embodiment of this invention. It is a top view which simplifies and shows the structure of the display apparatus 1 of 1st Embodiment of this invention. 3 is a block diagram showing an electrical configuration of a pressure detection means 13. FIG. It is a figure for demonstrating how to obtain | require the position correction amount by the information processing apparatus. 10 is a flowchart illustrating a processing procedure of display position correction processing by the information processing apparatus 14; It is a front view which shows the display apparatus 100 of the 2nd Embodiment of this invention. 3 is a block diagram showing an electrical configuration of a position detection unit 130. FIG. It is a block diagram which shows the electrical constitution of the display apparatus 140 of the 3rd Embodiment of this invention. It is a front view which shows the display apparatus 140 of the 3rd Embodiment of this invention. It is a figure for demonstrating how to obtain | require the attitude | position correction amount by the information processing apparatus. It is a top view which shows the pressure detection means 150 which is another example of a pressure detection means.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Display apparatus 11 Display means 12 Touch panel 13 Position detection means 14 Information processing apparatus 15 Scanner 16 Printer 17 Base

Claims (10)

Display means for displaying an image on the display surface;
Coordinate input means that has translucency, is provided on the display surface of the display means, and has coordinates input by an operator;
Position detecting means for detecting the position of the operator;
Display position correction means for correcting the display position of the image on the display surface of the display means,
The display position correction means is
The coordinates input to the coordinate input means, the position of the operator detected by the position detection means, the input distance between the coordinate input means and the display surface of the display means, and the operator and the display surface of the display means A display device characterized in that a position correction amount for correcting a display position of an image is obtained based on an operation distance therebetween, and a display position of the image is corrected based on the position correction amount. The position detection means
2. The display according to claim 1, further comprising a pyroelectric infrared sensor capable of detecting infrared rays radiated in front of the display direction of the image by the display means rather than the coordinate input means and capable of detecting infrared rays. apparatus. The position detection means includes a plurality of the pyroelectric infrared sensors,
The plurality of pyroelectric infrared sensors are arranged side by side in the arrangement direction parallel to the display surface of the display means,
The display position correction means is
When infrared rays are detected by multiple pyroelectric infrared sensors, the position of the pyroelectric infrared sensor located at the center between both ends in the arrangement direction is operated among the multiple pyroelectric infrared sensors that have detected infrared rays The display device according to claim 2, wherein the position correction amount is obtained as a person's position. The position detection means
The display device according to claim 1, further comprising a pressure detection unit configured to be installed on a floor surface in front of the display direction of the image by the display unit rather than the coordinate input unit and capable of detecting an applied pressure. The pressure detection means includes a plurality of pressure detection units arranged side by side in an arrangement direction parallel to the display surface of the display means,
The display position correction means is
When the pressure is detected by the plurality of pressure detectors, among the plurality of pressure detectors that have detected the pressure, the position of the pressure detector located at the center between both ends in the arrangement direction is set as the operator's position, The display device according to claim 4, wherein a position correction amount is obtained. Equipped with posture detection means for detecting the posture of the operator,
The display position correction means is
A posture correction amount for correcting the position of the operator detected by the position detection unit is obtained based on the posture of the operator detected by the posture detection unit, and the position of the operator is determined based on the posture correction amount. The display device according to claim 1, wherein the position correction amount is obtained based on a corrected operator position. Attitude detection means
Two position detection means for detecting the position of the operator in a second direction that is provided at different positions with respect to the first direction parallel to the display surface and that is parallel to the display surface and orthogonal to the first direction are included. The display device according to claim 6. The display position correction means is
The position of the operator detected by the two position detection means for posture, the detection interval between the two position detection means for posture, and the position of the operator's viewpoint in the first direction and the position detection means for posture The display device according to claim 7, wherein the posture correction amount is obtained based on a viewpoint distance. A distance measuring means for measuring an operation distance between the operator and the display surface of the display means;
The display device according to claim 1, wherein the display position correcting unit obtains the position correction amount based on an operation distance measured by the distance measuring unit. It is configured so that it can be installed on the floor surface in front of the display direction of the image by the display means rather than the coordinate input means, and comprises pressure detection means capable of detecting the applied pressure,
The pressure detection means includes a plurality of pressure detection units arranged in a matrix in the arrangement direction parallel to the display surface of the display means and the display direction orthogonal to the arrangement direction,
Among the plurality of pressure detection units, the plurality of pressure detection units arranged in the arrangement direction function as the position detection unit, and the plurality of pressure detection units arranged in the display direction are the distance measurement unit. The display device according to claim 9, which functions as:

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