JPH0239095A - Computer information two-picture display - Google Patents

Abstract

PURPOSE:To two-picture-display two kinds of computer information images obtained from a single display by switching a light path in synchronizing to a time division display action. CONSTITUTION:A computer information two-picture display 11 is composed of a CRT display 12 to time-division-display computer output information images sent from two sets of computers 19 and 20 in a field unit and an optical separating means to display two kinds of computer information images projected on the CRT display 12 by spacely separating them. Namely, two kinds of computer information images to be time-division-displayed in the field unit are spacely separated by switching the light path in synchronizing to the time division display action, the separated images are visually recognized as images to be independent, respectively, and two kinds of computer information images obtained from the single display are two-picture-displayed.

Description

Detailed Description of the Invention [Industrial Application 1'F] The present invention relates to a computer information dual-screen display device that displays computer information images on two screens that are time-divisionally displayed on a single display device. .

[Conventional Technology J] Today, as we enter the advanced information age, display devices that display information as images are used in all kinds of daily activities, regardless of whether they are for office use, home use, industrial use, or consumer use. It is becoming an indispensable information terminal, and in particular, for information processing devices such as personal computers and word processors that handle digitized information, written text, and drawing information, it constitutes the core device of the man-machine interface, just like a keyboard device. .

By the way, in general personal computers, when displaying computer control information such as a command menu as a part of an image representing computer input information, PIP (Picture InPic) is used.
ure) function may be used. Display device 1 with PIP function shown in FIG. 11
The screen of the CRT display device 2 is divided into a main screen and a child screen area, and the inset synthesis circuit 4 connected to the video output circuit 3 blanks a part of the current screen displaying computer-powered information. By inserting and compositing a child screen for displaying computer control information in the area where the image is displayed, a parent and child two-screen display is created.

[Problems to be Solved by the Invention] In the conventional display device 1 with the PIF function described above, when a child image is inserted and displayed in a parent image, a part of the parent image 1111 is obstructed by the T screen and difficult to see. Since it takes 11η to erase the child screen to display the entire parent screen, there is no way in the display principle that the parent and child images can be viewed at the same time in the same size, and in the CRT display device 2 where the current screen itself is small. However, there were problems such as the scan lines were thinned out and the resolution of the sub-screen displayed could not be obtained, and only a rough image could be seen from the sub-screen.

[Means for Solving the Problems] The present invention solves the above problems, and stores two types of computer information images in a field qifXI.

A single display device that time-divisionally displays a single display device, and two types of computer information images that this display device time-divisionally displays are spatially separated by switching the optical paths in synchronization with the nη time-division display operation, respectively. It is characterized by comprising an optical separation means that allows the image to be viewed as an independent image.

This invention has two functions that are time-divisionally displayed in the field lli position.
The computer information images of the Fl type are spatially separated by switching the optical path in synchronization with the time-division display operation, and the separated images are made visible as independent images, and the L1i- display device Two types of computer output information images obtained from the above are displayed on two screens.

[Example] Hereinafter, examples of the present invention will be described with reference to Figures 1 to 1O.
This will be explained with reference to the figures. FIG. 1 is a schematic configuration diagram showing an embodiment of a computer information two-screen display device of the present invention.

The computer information two-screen display device 11 shown in FIG.
A CRT display device 12 displays computer output information images sent from two computers 19 and 20 in a time-division manner in field units, and two types of computer information images projected on this CRT display device 12 are spatially displayed. It consists of an optical reduction means for separating and displaying.

The optical separating means shown in the embodiment is placed facing the CRT display device +712, and changes the plane of polarization of the light to CIt T
A polarization switch 13 that switches in synchronization with the time-division operation of the display device 12, a polarization switch 13 that passes through the polarization switch 13, a reflector 14 that guides the light to a detour light path that bypasses the original light path, and a reflector 14 that guides the polarization switch 13 to a detour light path that detours the original light path. The plane of polarization of the polarized light is 90
It is composed of a quarter-wave plate I5 with a degree phase shift, and polarized glasses 16, which have the same polarization plane on both the left and right sides and are worn as if interposed between the original optical path and the detour optical path.

Two computers 20 and 21 are connected to a video output circuit 17 that sends a video signal to the c n 'i' display device 12 via a changeover switch I8 that changes over in field cycles. In addition, the polarization switch 15
For this purpose, a liquid crystal plate is used which controls the optical rotation, which changes the plane of polarization according to the polarity of the applied voltage.
The changeover switch 2I is connected to the positive and negative power supplies +R and -E alternately at the field cycle. The changeover switches 18 and 21 are switched in conjunction with each other by a changeover circuit 22 connected to the computer 19.

Incidentally, the output information images of the two computers 19 and 20, which are alternately displayed on the CRT display device I2 at a field period, have polarization planes that differ by 90 degrees when passing through the polarization switch 13. Therefore, the computer output information image when the polarization plane switched by the polarization switch 13 matches the polarization plane of the polarized glasses 16 passes through the 0++i optical glasses I6 and is imaged on the retina in the eyeball.

- On the other hand, when the polarization plane switched by the polarization switch I4 does not match the polarization plane of the polarized glasses I6, the computer output information image is the result of a 90° phase shift of the polarization plane by the quarter-wave plate 15. , passes through the polarized glasses 16 as a virtual image formed by the reflecting mirror 14, and forms an image on the retina within the eyeball. In other words, by wearing polarized glasses (F6) that function as shutters, the left and right images entering the ig field of view are seen in the field period, and with the help of the afterimage effect, it is possible to view two types of computer output information images at the same time. .

In this way,' two-legged computer information two-screen display device 1
1 is the output of two computers 19.20 t+'7 report image 1-, which are spatially separated and can be displayed on the same size screen, and two types of computer output information. Images can be displayed on two screens without significantly reducing the color or brightness.In addition, the polarization switch 13, which has the property of rotating two orthogonal vibration planes (polarization planes) of light (optical rotation), can be used with CItT. Since it only needs to be driven in conjunction with the time-division operation of the display device 12, it is possible to easily display two images.
can be separated into n.

In the embodiment described in 2, the output information images of two computers 19 and 20 are alternately displayed on the CRT display device 12. , single computer 1
9, it is also possible to display both the computer output t'1 report image and the computer input l'17 report image. Reference numeral 32 denotes a human-powered device for manually inputting computer-powered information images, and is used for inputting databases and the like necessary for processing by the computer 19. Also, computer 19I
Not limited to S, for example, in the case of a word processor, which is a type of computer whose processing function is limited to text (If) creation, for example, input manuscript and character recognition output, etc. can be displayed on two screens as computer input information and computer output ↑ blue report. can be displayed.

Also, on the computer 19, questions and their answers are displayed.

Foreign language sentences and their Japanese translations 9 Japanese sentences and their foreign language interpretations, numerical tables and their graphs, wide area maps and partially enlarged maps.

In many cases, mutually related information such as an entire drawing and its enlarged partial drawing, an entire document and its partial text, a table of contents and its specified part text, etc. are handled, and the computer information two-screen display device 4■ shown in Fig. 3 is used. , the two types of mutually related output information images output by the computer I9 are distributed and stored in two image memories 43 and 44 from the buffer image memory 42 connected to the computer 19, and are stored in the middle of the field. It is also possible to adopt a configuration in which the signals are read out alternately and supplied to the video output circuit (7).

Furthermore, as the two types of computer information images, a combination of a computer control 211 information image and a computer output information image is also possible. For example, a command menu image and an output information image, a search index display image and a search result display image, etc. It can also be displayed on two screens.

In the above embodiment, instead of using the polarizing glasses 16, a polarizing plate 5 spanning the original optical path and the reflected optical path is used, as in the computer information two-screen display device 51 shown in FIG. 4.5.
2 can be used.

In this embodiment, an I/4 wavelength plate 15 and a polarization switch 1 are used.
3 are arranged vertically and oppositely in a horizontal V-shape, and the leg ends of the horizontal V-shape are tied together to fix the polarizing plate 52, so that two types of computer information images can be displayed in vertically adjacent positions.

Similarly, as in the computer information dual-screen display device 61 shown in FIG. 6, two types of computer information images can be displayed by arranging the quarter-wave plate 15 and the polarization switch 13 in a horizontal V-shape to face each other from side to side. , can also be displayed adjacent to each other on the left and right.

Furthermore, the computer t/7%i shown in FIG.
Like the two-screen display device 71, an optical separation means consisting of a polarization switch 13, a reflector 4, an I/4 wavelength plate 15, and a polarizing plate 52 is rotatably placed between the front and side surfaces of the CRT display device 12. By providing this, it is possible to arbitrarily select between two-screen display using the polarization switch 13 and display of a single computer information image without using the polarization switch 13 or the like.

Further, a computer information two-screen display device 8 shown in FIG.
As shown in I, the entire optical separation means except the polarization switch 13 can be moved forward and backward toward the front side of the CIt T display device 12, and the left and right polarization planes of the polarized glasses 82 can be semi-fixedly switched. By doing so, for example, by viewing a stereoscopic computer information image captured with binocular parallax after making the left and right polarization planes different, a sense of perspective is created by the shutter action of the polarization switch 14 and the polarized glasses 82. You can see 3D images.

Further, a computer information two-screen display device 9 shown in FIG.
1, +i of the projection type CRT display device 92
The image magnified by the magnifying lens 93 disposed on the ij plane is made incident on the semi-transparent reflecting mirror 94 via the polarization switch 13, and the light transmitted through the semi-transparent reflecting mirror 94 and the light reflected are sent to the reflecting mirror 65, respectively. It is also possible to adopt a configuration in which the light is guided to a pair of screens 97 and 98 with polarizing plates through angles 96 and 96, respectively. In the case of the embodiment, the screen 97 with a polarizing plate is set at the operator's position 11, and the other screen 98 with a polarizing plate is set on a table so as to face diagonally upward. Transparent touch panels 99 can be placed on top of each other on the front of the screen, making it easy to access information for computers and word processors while looking at the two screens.

Further, the computer information dual screen display device 101 shown in FIG. 10 has screens 97° 98 with polarizing plates arranged side by side on the left and right, and displays two images obtained by dividing a single computer output information image horizontally or vertically. , the CRT display device 12 is configured to display the information in a time-division manner, and the original computer output information image can be displayed after being substantially enlarged twice in the vertical or horizontal direction. It is possible to display a dynamic image similar to that of a 7% Ivision television receiver, which has a different aspect ratio.

In the L2 valley embodiment, the display device is not limited to the CRT display device 12, but a flat display device such as an EL matrix panel can be used.

[Effects of the Invention] As explained below, this invention can be applied to the field! 11
By switching the optical path in synchronization with the time-division display operation, two types of computer information images that are displayed in a time-division manner are separated in a spatial manner, and the separated images can be visually recognized as independent images. Because I configured it, m
- The two types of computer information images obtained from the display device can be separated from each other and displayed on two screens, and the two types of computer information images that the display device time-divisionally displays in field units are odd field and even field. Because the fields can be displayed in the same size, two types of computer information images can be displayed without much loss of sharpness, and simple two-screen display is possible at no cost. be effective.

Further, the present invention provides two types of computer information images, such as output information images of two computers, a human power information image and a computer output information image, or a computer control information image and a computer output information image regarding one computer. , both can be easily displayed on two screens, reducing the number of display devices used and the display capacity of one display device! By expanding to N', it is possible to reduce the cost of the entire commutan stem.

In addition, this invention has the ability to rotate two orthogonal vibration planes (polarization planes) of light (optical rotation) by switching six polarization switchers in conjunction with the time-division operation of the display device. After obtaining polarized light and optically separating the obtained polarized light, it is configured to pass through an analyzer that matches the polarized light, making it possible to perform simple light separation using only the polarization switcher as the driving object. It has the following effects.

In addition, by forming the optical path branching means adjacent to the original optical path and the detour optical path at a position within the field of view, two types of computer information images can be displayed in adjacent positions vertically or horizontally, and are related to each other. By displaying multiple pieces of computer information in parallel, it is possible to make the man-man interface, which is an essential element of the computer system, even more user-friendly.

In addition, by providing a polarization switcher in front of the display device so that it can move forward and backward, it is possible to
In addition to the screen display, by narrowing down the image source to one and removing the polarization switch! You can visually check the computer information image of r-, and you can use it in various ways.
It has effects such as IT ability.

In addition, by using a polarized mirror that can semi-fixably switch the left and right polarization planes as an analyzer, it is possible to wear polarized glasses with the same polarization planes on the left and right sides, and to adjust the position of the eye to the funeral field. You can visually recognize two types of computer information images from the computer, or wear polarized glasses with different polarization planes on the left and right to view computer information images captured as stereoscopic images, for example.
It can be viewed stereoscopically and can be used in many ways such as two-screen display and stereoscopic image display.

In addition, the analyzer is a rear projection screen with a polarizing plate, and a transparent tab panel for inputting the computer f, 'ty is provided on the 119 side of the rear projection screen, so that computer information images can be displayed. Two types of information input can be performed within the meridional field, and three types of touch input can be performed accurately in a short time.

In addition, on a display device, two images obtained by dividing one image horizontally or vertically are displayed in a time-division manner, while the original optical path and the detour optical path are formed adjacent to each other in a single field of view, and the images on the divided planes are By using a composite display configuration, it is possible to divide a single image into two and display them optically in parallel, which allows the display to have an angle of view twice that of the original image in the vertical or horizontal direction. It is possible to display images in a dynamic manner similar to that of a high-definition television receiver, which is different from the aspect ratio of current television receivers.

[Brief explanation of the drawing]

FIGS. 1 to 3 show computer information 2 of the present invention.
FIG. 4.5 is a schematic configuration diagram showing different embodiments of the screen display device, and FIG.
Figures 1 to 10 are schematic configuration diagrams showing various modifications of the computer information two-screen display device of the present invention. The diagram is
1 is a schematic configuration diagram showing an example of a conventional display device. Placement, 31.41.51.6+, 71.8+. 91.401. ,,,computer information two-screen display device, +2. ,,CRT display device. 13. Polarization switcher, 14815 reflector. +5. ,,l//1 wavelength plate, 16,82. ,, polarized glasses, +7. ,,Video output circuit, 18.21° changeover switch, 19°ta, 52. ．． ．． Polarizer.

Claims (12)

[Claims] (1) A single display device that time-divisionally displays two types of computer information images on a field-by-field basis; and a single display device that time-divisionally displays two types of computer information images by this display device in synchronization with the time-division display operation. A computer information two-screen display device comprising optical separation means that spatially separates images by switching optical paths and makes each image visible as an independent image. (2) The computer information two-screen display device according to claim 1, wherein the display device uses two types of computer output information images sent from two computers as image sources. (3) The computer information two-screen display device according to claim 1, wherein the display device uses a computer input information image and a computer output information image as image sources. (4) The display devices have two mutually related display devices.
2. The computer information two-screen display device according to claim 1, wherein the computer information two-screen display device is configured to use different types of computer output information images as video sources. (5) The computer information two-screen display device according to claim 1, wherein the display device uses a computer control information image and a computer output information image as image sources. (6) The optical separation means includes a polarization switch that is disposed facing the single image display device and switches the polarization plane of light in synchronization with the time-division operation of the image display device, and a polarization switch that transmits light through the polarization switch. an optical path branching means that guides the polarized light to a detour optical path that detours around the original optical path; and an analyzer that is provided in the original optical path and the detour optical path and selectively transmits only polarized light having a specific plane of polarization. A computer information two-screen display device according to claim 1. (7) The computer information two-screen display device according to claim 6, wherein the optical path branching means is configured to form the original optical path and the detour optical path vertically adjacent to each other at a position within a single field of view. (8) The computer information two-screen display device according to claim 6, wherein the optical path branching means is configured to form the original optical path and the detour optical path adjacent to each other on the left and right at a position within a single field of view. (9) The computer information two-screen display device according to claim 6, wherein the polarization switcher is provided on the front surface of the display device so as to be movable forward and backward. (10) The analyzer is a pair of polarized glasses in which the left and right polarization directions can be semi-fixed. 7. The computer information two-screen display device according to claim 6, wherein the computer information two-screen display device is configured to enable viewing of a stereoscopic image. (11) The analyzer is a rear projection screen having a polarizing plate, and the rear projection screen has a transparent touch panel on its front side for inputting computer information. The computer information two-screen display device according to item 6. (12) The display device displays two images obtained by dividing one image horizontally or vertically in a time-sharing manner, and the optical separating means displays the two images at a position before division into a single field of view. 2. The computer information two-screen display device according to claim 1, characterized in that the computer information is displayed adjacently in relation to each other.