Display device, and method of controlling display device

• US 9,904,414 B2
• Filed: 12/06/2013
• Issued: 02/27/2018
• Est. Priority Date: 12/10/2012
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Ichieda, Hiroyuki
• Primary Examiner(s): Jansen, II, Michael J
• Application Number:
  US14/098,638
• Publication Number:
  US 20140160076A1
• Time in Patent Office: 1,544 Days
• Field of Search: 345175
• CPC Class Codes: G06F 2203/04104 Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
• CPC Class Codes: G06F 3/0425 using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected tracking a projected light spot to determine a position on a display surface G06F3/0386
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text

Abstract

A projector includes a projection unit adapted to display an image based on image data supplied from a PC or an image processing unit as an image supply section, a position detection unit adapted to detect an operation by a pointing body, a coordinate conversion section or an output section adapted to output the pointed position to the image supply section in the case in which the operation is detected by the position detection unit, and an operation determination section adapted to restrict the output of the pointed position in the case in which the operation detected by the position detection unit is an operation satisfying a condition set in advance.

Claims

1. A display device that displays, on a display surface, an image based on image data supplied from an image supply section, the display device comprising:

at least one processor that executes one or more programs to realize one or more functions of;

a position detection unit adapted to detect an operation with a pointing body to the display surface;

an output device adapted to output a position where the operation is performed as a pointed position when the operation is detected by the position detection unit;

an image processing unit adapted to receive the pointed position from the output device and draw a figure so as to be superimposed on the image based on the pointed position; and

a control section adapted to stop output of the pointed position by the output device when the operation detected by the position detection unit is an operation satisfying a condition set in advance, wherein,

when the operation detected by the position detection unit is the operation satisfying the condition, the control section performs an image moving function of translating a position of the image from an original position to a translated position in accordance with a moving direction and a moving amount of the pointing body, the moving amount comprising a distance of a movement of the pointing body while the operation satisfying the condition is performed,

translating a position of the figure in accordance with the moving direction and the moving amount of the pointing body such that the figure is superimposed on the image at a same position relative to the image both before and after the translating of the position of the image, and

keeping the image and the figure at their respective translated positions after the operation satisfying the condition is no longer detected, and

after performing the image moving function, the control section resumes the output of the pointed position and the image processing unit draws an additional figure based on the pointed position so as to be superimposed on the figure and the image displayed at their translated positions displayed by the display device after performing the image moving function.

2. The display device according to claim 1, wherein

when the operation detected by the position detection unit is the operation satisfying the condition, the control section performs a function of changing a display state of the image by the display device.

3. The display device according to claim 2, wherein

the position detection unit detects at least one finger of a user as the pointing body.

4. The display device according to claim 3, wherein

the control section changes the function performed based on a number of fingers detected by the position detection unit.

5. The display device according to claim 1, wherein

the operation satisfying the condition is an operation having a trajectory of the pointed position having a predetermined shape.

6. A method of controlling a display device adapted to display an image based on image data supplied from an image supply section on a display surface, the method comprising:

detecting, by the display device, an operation with a pointing body to the display surface;

outputting, by the display device when the operation is detected, a position where the operation is detected as a pointed position;

receiving, by the display device, output of the pointed position and drawing a figure so as to be superimposed on the image based on the pointed position;

stopping, by the display device, output of the pointed position when the operation detected is an operation satisfying a condition set in advance;

performing, by the display device when the operation detected is the operation satisfying the condition, an image moving function of

translating a position of the image from an original position to a translated position in accordance with a moving direction and a moving amount of the pointing body, the moving amount comprising a distance of a movement of the pointing body while the operation satisfying the condition is performed,

translating a position of the figure in accordance with the moving direction and the moving amount of the pointing body such that the figure is superimposed on the image at a same position relative to the image both before and after the translating of the position of the image, and

keeping the image and the figure at their respective translated positions after the operation satisfying the condition is no longer detected; and

after performing the image moving function, resuming, by the display device, the output of the pointed position and drawing an additional figure based on the pointed position so as to be superimposed on the figure and the image displayed at their translated positions displayed by the display device after performing the image moving function.