Display device, control method of display device, and non-transitory computer-readable medium

• US 9,519,379 B2
• Filed: 10/05/2012
• Issued: 12/13/2016
• Est. Priority Date: 11/01/2011
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Ichieda, Hiroyuki
• Primary Examiner(s): Tryder, Gregory J
• Assistant Examiner(s): Patel, Jitesh
• Application Number:
  US13/645,839
• Publication Number:
  US 20130106908A1
• Time in Patent Office: 1,530 Days
• Field of Search: 345/629
• US Class Current: 1/1
• 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: G09G 3/02 by tracing or scanning a light beam on a screen

Abstract

A projector provides plural display areas on a screen and respectively displays input images input from plural image sources in the respective display areas by a projection unit, and includes a location detection unit that detects a pointed location of a pointing tool on the screen, and an image processing unit that executes processing over the plural display areas according to the detected pointed location.

Claims

1. A display device comprising:

a display unit that provides plural display areas on a shared display surface, each of the plural display areas respectively displaying an image input from a separate personal computer of a plurality of personal computers;

a location detector that detects a pointed location on the shared display surface based on a captured image of the shared display surface; and

a processing unit that executes processing over the plural display areas according to the pointed location detected by the location detector,

wherein the processing over the plural display areas includes drawing a trace over the plural display areas, each of the plural display areas corresponding to a separate personal computer of the plurality of personal computers, according to movement of the pointed location, and superimposing and displaying the drawn trace over the plural display areas corresponding to the personal computers by the display unit, and

wherein

when a continuous movement of the pointed location is contained within one display area of the plural display areas displayed on the shared display surface, the processing of drawing and superimposing the trace over the one display area is carried out by the personal computer associated with the one display area, and

when the continuous movement of the pointed location is detected to be located inside of multiple display areas of the plural display areas displayed on the shared display surface, the processing of drawing and superimposing the trace over the multiple display areas is switched to be carried out by the processing unit of the display device instead of the personal computers associated with the multiple display areas in which the continuous movement is detected.

2. The display device according to claim 1, wherein the processing unit executes processing of enlarged or reduced display of the images being displayed in the plural display areas within the respective display areas according to the pointed location detected by the location detector.

3. The display device according to claim 1, wherein the trace comprises a line.

4. The display device according to claim 1, wherein, when the location detector detects that the pointed location crosses a boundary on the shared display surface between the one display area and another display area, the processing of the drawing and superimposing the trace over the display area switches from being carried out by the personal computer to being carried out by the processing unit of the display device.

5. A method of controlling a display device that displays an input image input from an image source on a display surface, comprising:

providing plural display areas on a shared display surface, each of the plural display areas respectively displaying an image input from a separate personal computer of a plurality of personal computers;

imaging the shared display surface;

detecting a pointed location on the shared display surface based on a captured image of the shared display surface captured during the imaging; and

executing processing over the plural display areas according to the detected pointed location,

wherein the processing over the plural display areas includes drawing a trace over the plural display areas, each of the plural display areas corresponding to a separate personal computer of the plurality of personal computers, according to movement of the pointed location, and superimposing and displaying the drawn trace over the plural display areas corresponding to the personal computers by the display unit, and

wherein

when a continuous movement of the pointed location is contained within one display area of the plural display areas displayed on the shared display surface, the processing of drawing and superimposing the trace over the one display area is carried out by the personal computer associated with the one display area, and

when the continuous movement of the pointed location is detected to be located inside of multiple display areas of the plural display areas displayed on the shared display surface, the processing of drawing and superimposing the trace over the multiple display areas is switched to be carried out by the processing unit of the display device instead of the personal computers associated with the multiple display areas in which the continuous movement is detected.

6. A non-transitory computer-readable medium that stores a computer-executable program that controls a display device that displays an input image input from an image source on a display surface, allowing a computer to function as

a display unit that provides plural display areas on a shared display surface, each of the plural display areas respectively displaying an image input from a separate personal computer of a plurality of personal computers;

a location detector that detects a pointed location on the shared display surface based on a captured image of the shared display surface; and

a processing unit that executes processing over the plural display areas according to the pointed location detected by the location detector,

wherein the processing over the plural display areas includes drawing a trace over the plural display areas, each of the plural display areas corresponding to a separate personal computer of the plurality of personal computers, according to movement of the pointed location, and superimposing and displaying the drawn trace over the plural display areas corresponding to the personal computers by the display unit, and

wherein

when a continuous movement of the pointed location is contained within one display area of the plural display areas displayed on the shared display surface, the processing of drawing and superimposing the trace over the one display area is carried out by the personal computer associated with the one display area, and

when the continuous movement of the pointed location is detected to be located inside of multiple display areas of the plural display areas displayed on the shared display surface, the processing of drawing and superimposing the trace over the multiple display areas is switched to be carried out by the processing unit of the display device instead of the personal computers associated with the multiple display areas in which the continuous movement is detected.