Touch drawing display apparatus and operation method thereof, image display apparatus allowing touch-input, and controller for the display apparatus

Inactive Publication Date: 2012-08-30
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0016]In view of the problems described above, it is desired to provide a touch drawing display apparatus and operation method there

Problems solved by technology

There is a problem that recognition of an original image becomes difficult when writing is repeated on the same screen image.
Any time lag is stressful for the user.
This problem is not limited to the electronic blackboard, and it occurs in display devices allowing display of images drawn by touching, such as tablet-type terminals.
In an electronic blackboard allowing display of a plurality of pages of images, how to switch pages easily is an issue.
This method, however, is problematic particularly

Method used

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  • Touch drawing display apparatus and operation method thereof, image display apparatus allowing touch-input, and controller for the display apparatus
  • Touch drawing display apparatus and operation method thereof, image display apparatus allowing touch-input, and controller for the display apparatus
  • Touch drawing display apparatus and operation method thereof, image display apparatus allowing touch-input, and controller for the display apparatus

Examples

Experimental program
Comparison scheme
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Example

First Embodiment

[0049][Configuration]

[0050]Referring to FIG. 1, an electronic blackboard apparatus 100 in accordance with the first embodiment of the present invention includes: a central processing unit (hereinafter denoted as CPU) 102; a read only memory (hereinafter denoted as ROM) 104; a random access memory (hereinafter denoted as RAM) 106; a storage unit 108; an interface unit (hereinafter denoted as IF unit) 110; a touch detecting unit 112; a display unit 114; a display control unit 116; a video memory (hereinafter denoted as VRAM) 118; and a bus 120. CPU 102 is for overall control of electronic blackboard apparatus 100.

[0051]ROM 104 is a non-volatile storage storing programs and data necessary for controlling operations of electronic blackboard apparatus 100. RAM 106 is a volatile storage. Storage unit 108 is a non-volatile storage retaining data even when power conduction is shut off, and implemented, for example, by a hard disk drive, a flash memory or the like. Storage un...

Example

Second Embodiment

[0086][Configuration]

[0087]An electronic blackboard apparatus in accordance with the second embodiment of the present invention has the same configuration as that shown in FIG. 1 representing the electronic blackboard apparatus in accordance with the first embodiment. The method of detecting a touch input and the displayed screen images of the electronic blackboard apparatus in accordance with the second embodiment are also the same as those described with reference to FIGS. 2 and 3 regarding the electronic blackboard apparatus in accordance with the first embodiment. Therefore, in the following, the electronic blackboard apparatus in accordance with the second embodiment will be described as “electronic blackboard apparatus 100”, referring to FIGS. 1 to 3 where appropriate.

[0088]A program realizing the page switch function of electronic blackboard apparatus 100 in accordance with the second embodiment using the hardware shown in FIG. 1 when executed by CPU 102 show...

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PUM

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Abstract

An electronic blackboard includes a display panel and a touch-panel, draws a line corresponding to a track formed by movement of the touched position on the displayed image, and erases an erroneously drawn line corresponding to a track specifying an operation other than drawing. In another aspect, an electronic blackboard includes a touch screen, a scroll unit for scrolling an image on the display screen when positions of multi-touch move in one same direction, and a page switching unit for detecting, after detection of multi-touch input, that a finger is moved away, and executing a process of returning the image on the display screen to a state before scrolling or a process of switching the image by one page in accordance with the moving direction of multi-touch positions, depending on whether the amount of movement of touch inputs is equal to or smaller than a threshold value.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This nonprovisional application claims priority under 35 U.S.C. §119(a) on Patent Applications No. 2011-027236 and No. 2011-027237 filed in Japan on Feb. 10, 2011, the entire contents of which are hereby incorporated by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to an image display apparatus having a display device and an input device integrated together, allowing touch-input. More specifically, the present invention relates to a touch drawing display apparatus that has functions of drawing operation and other operation regarding touch operations, and operation method thereof, as well as to an image display apparatus switching images page by page by touching and sliding images with a plurality of fingers and the like and a controller for the display apparatus.[0004]2. Description of the Background Art[0005]As an image display apparatus allowing touch-input, a so-called electronic...

Claims

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Application Information

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IPC IPC(8): G06F3/041
CPCG06F3/0485G06F3/04883G06F2203/04808G06F3/0416G06F3/0488
Inventor KANKI, NORIYOSHI
Owner SHARP KK
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