JPH0946622A - Two-screen display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the display device in which two kinds of video images are simultaneously displayed on a same screen. SOLUTION: The display device is provided with 1st and 2nd video output devices 11, 12 outputting left/right side observer use video information, a display body 1 in which picture element groups 1L, 1R driven by a video signal for the left right side observers from the 1st and 2nd video output devices 11, 12 and arranged in a longitudinal direction are arranged laterally alternately, and a lenticular lens 2 arranged in front of the display body corresponding to the left right side observer use picture element groups 1L, 1R. Then a different video image is displayed on the left right side observer use picture element groups 1L, 1R.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device for displaying two kinds of images simultaneously on the same screen by combining a display body and a lenticular lens.

[0002]

2. Description of the Related Art Conventionally, in order to display two types of images for two observers, one display surface is divided into two small screens and the images are displayed on each small screen. This is common, and an example of such a two-screen display will be described below with reference to the drawings.

FIG. 5 is a block diagram of a conventional two-screen display device, in which 20 is a first video output device for outputting first video information and 21 is a second video output device for outputting second video information. Video output device, 22 is a first storage device for storing the signal output from the first video output device 20, and 23 is a second storage device for storing the signal output from the second video output device 21. A storage device, 24 is a display memory for storing the signals to be displayed, 25 is a control of the size and display position of the window to be divided, and controls the first storage device 22, the second storage device 23, and the display memory 24. A window management unit 26, a driving circuit 26, and a display device 27 for displaying an image are driven by the driving circuit 26 to perform an image.

As the operation of this device, first, the output signals from the two types of video output devices 20 and 21 are written in the respective storage devices 22 and 23, and the window management unit 25 calculates the size and display position of the window. Then, a predetermined signal (determined by how the screen is divided) is read from the storage devices 22 and 23 and written in the display memory 24. The written signal is input to the drive circuit 26 to drive the display device 27. In this way, two types of video signals are displayed on the display device 27 in the divided display areas.

[0005]

However, in the above-mentioned conventional apparatus, since the screen of the display device is divided into two, the display area is narrowed and the displayed image is difficult to see. In order to improve this, it is necessary to increase the screen size of the display device, and there is a problem that price increase cannot be avoided.

SUMMARY OF THE INVENTION The present invention solves such a conventional problem, and an object of the present invention is to provide a display device capable of simultaneously displaying two kinds of images on the same screen.

[0007]

SUMMARY OF THE INVENTION The present invention is a display device for simultaneously displaying two types of images on the same display, and a first image output means for outputting image information for a left observer and a right observation. Second image output means for outputting the image information for the left eye, a left observer pixel group in which pixels driven by the image signal for the left observer from the first image output means are vertically arranged, and A display body formed by alternately arranging, in the horizontal direction, right observer pixel groups in which pixels driven by the right observer video signal from the second image output means are arranged in the vertical direction. , A lenticular lens arranged on the front surface of the display body so as to correspond to the left and right observer pixels and arranged so that the axis of the lens and the vertical direction of the display body coincide with each other, and the left side observation Image Group and a right-side observer pixel group are configured to display different images, and a display device that simultaneously displays two types of images on the same display, and outputs upper observer image information. The first image output means, the second image output means for outputting image information for the lower observer, and the pixels driven by the image signal for the upper observer from the first image output means are arranged in the horizontal direction. The upper observer horizontal scanning line and the lower observer horizontal scanning line formed by horizontally arranging pixels driven by the lower observer video signal from the second image output means are arranged in the vertical direction. And display bodies formed by alternately arranging the display bodies on the front surface of the display body so as to correspond to the horizontal scanning lines for the upper and lower observers, and the axis of the lens and the left-right direction of the display body match. So And a location has been lenticular lens, in which so as to display different images on each horizontal scanning line based on the upper observer pixel group and a lower observer pixel group.

[0008]

With this structure, two kinds of images can be formed on two observers with only one display.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment of a two-screen display device of the present invention, and is a schematic configuration diagram of a main part for explaining the principle thereof. In FIG. 1, reference numeral 1 denotes a display body for displaying a video signal, which displays a right observer's video information and displays a right observer's display pixel group 1R and a left observer's video information. The left observer display pixel group 1L arranged in the vertical direction is alternately arranged in the horizontal direction. Two
Is a lenticular lens for forming an image for the right side observer and an image for the left side observer in both observer directions at an appropriate distance from the display body, and 3 indicates an observation area for the observer, 3R is the observation area for the right observer, 3L
Indicates the observation area for the left observer. The lenticular lens 2 is a cylindrical lens having a semicircular cross section and a columnar shape in the vertical direction, and is arranged so that its axial direction coincides with the vertical direction of the display 1.

FIG. 2 is a schematic diagram for explaining the operation of the apparatus for inputting a video signal to the display 1 shown in FIG. 1 and the entire operation. In the figure, 11 outputs the video information for the right observer. A right observer image output device, 12 is a left observer image output device for outputting left observer image information, and 13 is a display data processing circuit for processing both left and right observer image signals.

Next, the operation will be described. For one of the lenticular lenses 2 described above, a display pixel group 1
R and 1L are arranged correspondingly, and as shown in FIG. 1, the light from the right-side observer display pixel group 1R reaches the right-side observer observation region 3R and the left-side observer display pixel group 1
The light from L separately reaches the observation region 3L for the left observer, so the right observer is in the observation region 3R for the right observer, and the left observer is in the observation region 3L for the left observer. Is located, it is possible to independently display only the light from the display pixel group 1R to the right observer and only the light from the display pixel group 1L to the left observer.

FIG. 3 shows a second embodiment of the two-screen display device according to the present invention, and is a schematic view of the essential parts for explaining the principle thereof. The same parts as those in the first embodiment are designated by the same reference numerals. In FIG. 3, reference numeral 1 is a display for displaying a video signal, which is for horizontal scanning line 1U based on the display pixel group for the upper observer and horizontally arranged for displaying the image information for the upper observer. The horizontal scanning lines 1D based on the lower observer display pixel groups which are arranged in the horizontal direction and which display image information are alternately arranged in the vertical direction. Reference numeral 2 is a lenticular lens for forming an upper observer image and a lower observer image in both observer directions at an appropriate distance from the display, and 3 is an observer observation area, 3U Indicates the observation region for the upper observer, and 3D indicates the observation region for the lower observer. The lenticular lens 2 is a cylindrical lens having a semicircular cross section and a columnar shape in the lateral direction, and is arranged so that its axial direction and the left-right direction of the display body 1 coincide with each other.

FIG. 4 is a schematic diagram for explaining the operation of the apparatus for inputting the video signal to the display 1 shown in FIG. 3 and the overall operation. In the figure, 14 outputs the video information for the upper observer. An upper observer video output device, 15 is a lower observer video output device that outputs lower observer image information, and 16 is a display data processing circuit that processes both upper and lower observer image signals.

Next, the operation will be described. Horizontal scanning lines 1U and 1D based on the display pixel group are arranged corresponding to one of the lenticular lenses 2 and, as shown in FIG. 3, horizontal scanning lines based on the display pixel group for the upper observer. Light from 1U is the observation area 3 for the upper observer
The light from the horizontal scanning line 1D based on the display pixel group for the lower observer reaches the observation region 3D for the lower observer separately, and thus reaches the observation region 3U for the upper observer.
The upper observer and the lower observer are located in the observation region 3D for the lower observer, so that only the light from the horizontal scanning line 1U is given to the upper observer and the horizontal scanning line is given to the lower observer. Only the light from 1D can be displayed independently.

As described above, in the case of the first embodiment, the observer is positioned on the left and right of the display screen, and in the case of the second embodiment, the observer is positioned above and below the display screen. On the other hand, different images can be displayed.

[0016]

According to the present invention, two kinds of images can be displayed on one display body at the same time without using two display bodies. Thus, it is possible to provide a two-screen display device capable of displaying two types of video on the full screen of one display body without reducing the screen size.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of essential parts showing a first embodiment of a two-screen display device of the present invention.

FIG. 2 is a schematic diagram for explaining the overall operation of the first embodiment of the two-screen display device of the present invention.

FIG. 3 is a schematic configuration diagram of essential parts showing a second embodiment of the two-screen display device of the present invention.

FIG. 4 is a schematic diagram for explaining the overall operation of the second embodiment of the two-screen display device of the present invention.

FIG. 5 is a schematic configuration diagram showing an example of a conventional two-screen display device.

[Explanation of symbols]

1 ... Display body, 1R ... Right-side observer display pixel group, 1L
... Left-side observer display pixel group, 1U ... Horizontal scan line based on upper observer display pixel group, 1D ... Horizontal scan line based on lower observer display pixel group, 2 ... Lenticular lens, 3 ... Observation region, 3R ... Observation area for right side observer, 3L ... Observation area for left side observer, 3U ... Observation area for upper observer, 3D ... Observation area for lower observer,
11 ... Image output device for right side observer, 12 ... Image output device for left side observer, 13, 16 ... Display data processing circuit, 14 ...
Image output device for upper observer, 15 ... Image output device for lower observer.

Claims (2)

[Claims] 1. A display device for simultaneously displaying two types of images on the same display, wherein the first image output means outputs image information for a left observer, and the first image output means outputs image information for a right observer. And a left observer pixel group in which pixels driven by the left observer image signal from the first image output unit are vertically arranged,
A display body formed by alternately arranging, in the horizontal direction, right observer pixel groups in which pixels driven by the right observer video signal from the second image output means are arranged in the vertical direction. , A lenticular lens arranged on the front surface of the display body so as to correspond to the left and right observer pixels and arranged so that the axis of the lens and the vertical direction of the display body coincide with each other, and the left side observation A two-screen display device characterized in that different images are displayed in the pixel group for the observer and the pixel group for the right observer. 2. A display device for simultaneously displaying two types of images on the same display, wherein the first image output means outputs image information for an upper observer, and the first image output means outputs image information for a lower observer. 2 image output means, an upper observer horizontal scanning line in which pixels driven by the image signal for the upper observer from the first image output means are arranged in the horizontal direction, and the second image output means. And a display body formed by alternately arranging horizontal scanning lines for the lower observer, which are formed by arranging pixels driven by the video signal for the lower observer in the horizontal direction, in the vertical direction, and the upper and lower observers. Located on the front surface of the display so as to correspond to the horizontal scanning line,
And having a lenticular lens arranged so that the axis of the lens and the left-right direction of the display body match, different images on each horizontal scanning line based on the pixel group for the upper observer and the pixel group for the lower observer. 2 to display
Screen display device.