Display device and display method

• US 8,581,839 B2
• Filed: 05/13/2011
• Issued: 11/12/2013
• Est. Priority Date: 05/17/2010
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Kikuchi, Yosuke
• Primary Examiner(s): Tzeng, Fred
• Application Number:
  US13/107,277
• Publication Number:
  US 20110279362A1
• Time in Patent Office: 914 Days
• Field of Search: 345/156, 345/690
• US Class Current: 345/156
• CPC Class Codes: G06F 3/0304 Detection arrangements using opto-electronic means constructional details of pointing devices not related to the detection arrangement using opto-electronic means G06F3/033; optical digitisers G06F3/042

Abstract

A display device and the like which can provide an image showing the status of the past presentation more flexibly is provided. A display device includes an image generating section generating an instruction image which reflects an instruction content based on presentation data obtained by relating image data showing a displayed image to display time data showing a display time of the displayed image and based on instruction information showing the instruction content, a display section displaying the instruction image, and an updating section updating the presentation data based on the instruction, and the image generating section generates a reproduction target time specifying image including a time region which changes as time passes and a specifying region which moves on the time region according to an instruction position and shows a reproduction target time, and the display section displays the reproduction target time specifying image.

Claims

1. A display device comprising:

an image generating section generating an instruction image according to instruction content based on

presentation data, which is part of said instruction content, obtained by relating image data, which is different from said instruction image, from a previously displayed image to display time data from a display time of said previously displayed image, and

instruction information obtained from a currently displayed image;

a display section displaying said instruction image; and

an updating section updating said presentation data based on said instruction information,

wherein

said image generating section generates a reproduction target time specifying image including a time region which changes as time passes and a specifying region which moves along said time region according to a position shown by said instruction information, said specifying region showing a reproduction target time of said image data, and

said display section displays said reproduction target time specifying image.

2. The display device according to claim 1, wherein

said image generating section generates an image including, as said time region in said reproduction target time specifying image, a first time region whose size changes according to a reproduction time of a presentation before update by said updating section and a second time region whose size changes according to said reproduction time of said presentation after update by said updating section.

3. The display device according to claim 2, wherein

said second time region branches off from a position on said first time region, said position indicating a time point at which an update of said presentation was performed.

4. The display device according to claim 1, wherein

said image generating section generates a displayed image from said reproduction target time, and

said display section displays said displayed image.

5. The display device according to claim 1, wherein

said instruction information includes instructions given by using an instruction tool.

6. The display device according to claim 5, wherein

said image data includes a content of writing performed by said instruction tool in a display region of said instruction image,

said display time data includes data showing a time point at which said content of writing was written, and

said image generating section generates an image showing said content of writing as part of said displayed image from said reproduction target time.

7. A display method comprising allowing a display device to

generate an instruction image according to instruction content based on

presentation data, which is part of said instruction content, obtained by relating image data, which is different from said instruction image, from a previously displayed image to display time data from a display time of said previously displayed image, and

instruction information obtained from a currently displayed image,

display said instruction image,

update said presentation data based on said instruction information,

generate a reproduction target time specifying image including a time region which changes as time passes and a specifying region which moves alone said time region according to a position shown by said instruction information, said specifying region showing a reproduction target time of said image data, and

display said reproduction target time specifying image.