JPS6340933A - Image display device - Google Patents

Abstract

PURPOSE:To add the handwriting contents to an image data and to redisplay said data when necessary, by installing a transparent touch for a hand writing to the surface of a display, and inputting the handwriting input to a video memory or an external memory. CONSTITUTION:A transparent touch panel 70 for a handwriting input is installed to a tube surface of a CRT display 50, connected to a CPU bus 7 through a touch interface 60, and a handwritten data of a comment and a mark, etc. is inputted to a video memory 40 and an external memory 3. The data which is written in the memory 40 is displayed on the display 50 through a video synthesizer 30. Also, when necessary, said data is read out the memory 3 and can be redisplayed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image display device that displays stored image data or image data transferred from the outside.

[Prior Art] FIG. 3 is a block diagram showing a conventional image display device. In the figure, (1) is a control means, such as a central processing unit (
(hereinafter referred to as CPU), (2) is main memory, (3)
is an external memory, and (4) is a printer.

(5) is an input device, such as a cathode ray tube (hereinafter referred to as CRT), a CRT terminal (including a keyboard), (6
) is external signal input/output interface, (7) is CPU
It is a system bus. These CPUs (1), main memory (
2), an external memory (3), an external signal input/output interface (6), etc. constitute a microcomputer system.

(20) is a video memory connected to the CPU system bus (7), (30) is a video synthesizer connected to the video memory (20), and (40) is a CPU system bus (7) and a video synthesizer (30) are connected to the video synthesizer (30) and (50).
30) is a CRT display connected to hl.

Next, the operation will be explained.

Image data stored in the external memory (3) or input via the external signal input/output interface (6) is transferred to the video memory (20) under the control of the CPU (1). Video memory (20)
The image data stored in is passed through a video synthesizer (30) and displayed on a CRT display (50). This CR
The data superimposed on the display image of the T-display (50) is the characters input from the CRT terminal (including keyboard) (5) and the results (characters and line diagrams) calculated by the CPU (1). , is first input to a bit plane memory (40), is synthesized with image data by a video synthesizer (30), and displayed on a CRT display (50).

[Problems to be Solved by the Invention] Since the conventional image display device is configured as described above, the bit plane memory (40) can receive input from the CRT terminal (including keyboard) (5) or from the CP U
Only the calculation result of (1) can be entered. Therefore, if the person viewing the image wants to add a comment or mark to the image, the operation becomes complicated, and there are problems such as there are restrictions on the characters and marks that can be entered. there were.

This invention was made to solve the above-mentioned problems, and allows a person viewing a single image to add characters or marks to any part of the image using handwritten input.
To provide an image display device that can store added characters and marks in an external memory and display them again when necessary.

[Means for Solving the Problems] The image display device according to the present invention includes a transparent touch panel for handwriting input mounted on the surface of the display, and an output from the transparent touch panel that is connected to a bit plane memory or an external device via a control means. It is equipped with a touch panel interface for inputting data into the memory.

[Operation] In the present invention, when comments, marks, etc. are handwritten on the transparent touch panel, they are superimposed on the image data, are stored in an external memory, and can be redisplayed when necessary.

[Embodiments of the invention] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an example of an image display device according to the present invention, and parts that are the same as those of the conventional device are given the same reference numerals and explanations will be omitted.

In the figure, (60) is a touch panel interface connected to the CPU bus (7), and (70) is a transparent touch panel for handwriting input attached to the tube surface of the CRT display (50). ) is connected to the CPU bus (7) so that handwritten data such as comments and marks are input to the bit plane memory (40) and external memory (3).

Next, the operation of the above configuration will be explained.

The display operation and superimposition operation of image data from the external signal interface (8) and the like are the same as those of the conventional system, and their explanation will be omitted here.

Comments and marks on the image displayed on the CRT display (50) are handwritten on a transparent touch panel (70) attached to the tube surface of the CRT display (50). These comments and marks are output as X and Y coordinates from the transparent touch panel (70) and written into the bit plane memory (40) by c p U (t) via the touch panel interface (80). The input data passes through a video synthesizer (30) and is displayed on a CRT display (50). That is, when you want to add P2 as a comment to the display image P1 shown in FIG. 2(A), add comment P2 on the touch panel (70).
By handwriting, a composite image P3 can be obtained.

Further, the handwritten comment P2 is recorded in the external memory (3) so that it can be redisplayed when necessary.

In the above embodiment, an image display device using a CRT as the display is shown, but the present invention can also be applied to devices using a liquid crystal display, a discharge display, an EL, or an LED as a display.

[Effects of the Invention] As described above, according to the present invention, a transparent touch panel for handwriting input is attached to the surface of the display, and handwritten input is input to the bit plane or external memory, so that comments and comments on displayed images can be made. The mark can be handwritten on the display screen, and can be redisplayed when necessary.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an image display device according to an embodiment of the present invention, FIG. 2 is a display example for explaining the operation of the device of the present invention, and FIG. 3 is a block diagram of a conventional image display device. (1) is a control means, (60) is a touch panel interface, and (70) is a transparent touch panel. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] (1) a control means for inputting image data stored in an external memory or image data input via an external signal input/output interface to a bit plane memory; a display for displaying image data from the video memory; It is equipped with a bit-plane memory that receives display data of characters and figures from a terminal connected to the control means, and a video synthesizer that synthesizes the display data of the bit-plane memory with image data and outputs it to the display. An image characterized by being provided with a transparent touch panel for handwriting input attached to the side, and a touch panel interface for inputting output data from the transparent touch panel to the bit plane memory or external memory via the control means. Display device.