JPS62209992A - Display device - Google Patents

Abstract

PURPOSE:To observe more real stereoscopic picture without using spectacles by providing a means designating displaying a picture stereoscopically or displaying it in two-dimension and a means switching the picture display into the two-dimension display based on the designation of the designation means. CONSTITUTION:In applying the two-dimension display, any number of 0-4 is inputted to a CPU 31 from an input device 50, the CPU 31 gives an inputted numerical value to a register 54 and sects a flat 53. The register 54 outputs the inputted numerical value to a selector 52 and the selector 52 where the flag 53 is set outputs the input from the register 54 to a differential data storage section 35 and an AND gate 38. If the input from the input device is 0, a picture element on a position 11 among picture elements corresponding to each semi- cylindrical lens is displayed on a position (11-15) corresponding to all the picture elements with respect to data. Since similar display is applied as to all the semi-cylindrical lens, a picture displayed on a display module 30 is subject to two-dimension display.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application in Business A] The present invention relates to a device for displaying images three-dimensionally in televisions, image response systems, etc., and particularly to a three-dimensional display device that does not require stereoscopic glasses or the like.

[Prior Art] Conventional 3D display devices display the right display screen in blue and the left display screen in red, and when viewing them, a blue filter is applied to the right glasses and a red filter is used to the left glasses. The method used was to attach a . Therefore, it had the disadvantage of requiring glasses. Furthermore, with conventional 3D display devices, it has been impossible to switch between 3D display and 2D display.

[Problems to be Solved by the Invention] The present invention eliminates the above-mentioned drawbacks of the conventional technology, allows viewing of more realistic 3D images without using glasses, and further enables switching between 3D display and 2D display. The purpose is to provide a display device that is

[Means for Solving the Problems] In order to achieve the above object, the display device of the present invention is a display device capable of displaying images three-dimensionally, which displays images three-dimensionally or two-dimensionally. The configuration includes means for specifying whether the image is displayed, and means for switching the image display to a two-dimensional display based on the specification of the specifying means.

[Function] It is possible to perform a three-dimensional display of an image by combining the basic data and difference data of an image, and to display a two-dimensional image by displaying only one of the basic data and difference data.

[Example] The present invention will be described in detail below with reference to the drawings.

FIG. 2 shows an embodiment of the display section of the display device of the present invention.

The display section 1 includes a lens group 2 consisting of a plurality of semi-cylindrical lenses 2A, and a liquid crystal display 3. The light scattering filters 4 are stacked closely together or with gaps between them. The stereoscopic image information is displayed in a matrix on the liquid crystal display 3. The position on the liquid crystal display 3 corresponding to each semi-cylindrical lens 2^ corresponds to a column of the matrix. Image information on the liquid crystal display 3 can be viewed as a three-dimensional image through the lens group 2.

FIG. 3 is a diagram illustrating the action of the semi-cylindrical lens 2A. In the figure, 3A and 3B are the glasses that sandwich the liquid crystal 3C, and 3D
, 3E are transparent electrodes for driving the liquid crystal display. In the figure, the positions corresponding to the respective semi-cylindrical shapes 2A on one scanning line of the display body 3 are 11, 12 degrees, 13 degrees, 14 degrees, 15 degrees.
This shows an example in which the image is divided into five sections, and one picture element is displayed on each section. When viewing the display unit 1 from the front, due to the parallax between both eyes, the left eye sees the picture element on 12 through path 21, and the right eye sees the picture element on path 2.
View the picture element above 14 through 2. Also, when viewed from the left, the left and right eyes view the picture elements on ll and 13 through paths 23, 24, respectively.

This is common to all the semi-cylindrical lenses constituting the lens group 2. In this way, the left and right eyes can see different image information. By giving different image information depending on the parallax for each piece of image information displayed in matrix on the liquid crystal display 3, a screen is constructed on the display unit 1 on which the image can be viewed three-dimensionally when viewed through the lens group 2. can do.

FIG. 4 shows a block diagram of an embodiment of the present invention.

In the figure, 30 is a display module composed of the above-mentioned display unit 1 and a liquid crystal display drive circuit, 31 is a CPU such as a microcomputer that performs various controls, and 32 is an external storage device that stores stereoscopic image information, including ROM, magnetic Appropriate means such as a disk device, magnetic tape, etc. can be used. 33
is a memory that stores various control methods such as image data transfer and display, and is composed of a ROM. 34 is a basic data storage unit that stores basic image display data for stereoscopic display of images. Regarding the entire screen displayed on the display module 30, including image information stored in an external storage device, such as density information, information on all picture elements corresponding to the picture element 13 shown in FIG. remember. This image information is information corresponding to the center value of the difference data between the left and right images. Reference numeral 35 denotes a difference data storage unit that stores, as a numerical value, the difference in how the left and right stereoscopic images differ from the data stored in the basic data storage unit 34 . In this embodiment, total difference data for two screens on the left side corresponding to picture elements 14 and 15 above in FIG. 3 and for two screens on the right side corresponding to picture elements 11 and 12 above are stored. Both the basic data storage section 34 and the differential data storage section 35 are constructed of RAM. Reference numeral 36 denotes a displacement counter which instructs various display controls to either the screen or the two screens on the right side according to instructions from the CPU 31. 38 is an AND gate, 39 is a basic data storage section 3
4 and an adder that adds the output of AND gate 38, 40 is a D/8 converter that converts the output of adder 39 into analog data, 41 is an analog shift register that outputs display data in parallel, and 42 is a pass line. It is.

Reference numeral 50 denotes an input device such as a keyboard device for giving instructions for three-dimensional display or two-dimensional display to the CPU 31. Instructions for three-dimensional display and two-dimensional display are given manually using predetermined symbols using an input device.

The operation of this embodiment will be explained first starting from stereoscopic display.

Basic image display data is transferred from the image data in the external storage device 32 to the basic data storage section 34 under the control of the CPII 31 according to the program in the program memory 33.
The difference data for each of the two left and right screens is transferred to the difference data storage section 35. When the transfer is completed, the CP (131) issues a command to the display controller 36 to start the display procedure.
The data at the right end of the line, that is, the data of the five picture elements corresponding to the rightmost semi-cylindrical lens of the first line, is output from the rightmost end to the left, and then the data of the picture element corresponding to the adjacent semi-cylindrical lens is output. Data is output, and when all the picture elements of the first line have been output by repeating the process sequentially, control is performed to output the data of all the picture elements in the second line, the third line, and so on. More specifically, the display controller 36 outputs a line address to the signal line group 43 and sends the line address to the basic data storage section 34. Specify the line address of the differential data storage unit and output the column address to the signal line group 44 to determine the column, that is, which semicylindrical lens to output the data corresponding to,
The column address is output to the basic data storage section 34 and the differential data storage section 35. The display controller outputs the display basic data to the adder 3g according to the line address and column address specified in the basic data storage section 34, and at the same time outputs the data output of each line to the displacement counter 37 equipped with a quinary counter. Generates a synchronization signal just before. The displacement counter 37 has an output value of 0.1, 4.2.3.
The output value 0 is the address of the 11th part shown in FIG. , 2 specifies the address of the 14th copy, and 3 specifies the address of the 15th copy. Further, when the output of the displacement counter 37 is 4, the signal line 45 is set to logic 0. In this way, the display controller 36 specifies the line address, column address, and picture element address, and transfers the difference data from the difference data storage section 35 to the AND gate 3.
Output to 8. The output of the AND gate 38 is added to the basic data at the same address mentioned earlier in the adder 39, and the result is D.
/A converter 40.

The display controller 36 sequentially outputs 0, 1, 4, 2.3, so when the output is 0, data corresponding to the right end of the semi-cylindrical lens, that is, difference data corresponding to the 11 positions of each lens is extracted. It turns out. Similarly, the output is 1
In this case, data corresponding to 12 positions of each lens will be extracted. Next, when the display controller outputs 4, the display controller is configured to set the signal line 45 to logic O, so the output data from the difference data storage section 35 is not input to the adder 39. Therefore, at this time, the basic data from the basic data storage section 34 is output from the adder 39 as is. Display controller 3
When the output of 6 is 2.3, it is the same as when the output is 0 or 1 as described above. The D/A converter 40 converts the input digital data corresponding to each picture element into analog data and outputs it to the analog shift register 41.

Since the analog shift register 41 sequentially shifts analog data from the D/A converter 40 under the control of the display controller 36, data for one line is input by repeating the above-described method. When one line of data has entered the analog shift register 41, the analog data corresponding to each picture element enters the display module 30 via a line group 46 under the control of the display controller 36 and is displayed in one line.

The above-described display for one line is performed in the same manner for the next line and subsequent lines, so that one screen is displayed. In this way, a three-dimensional display is performed on the display module 30.

Although stereoscopic display of images is performed as described above, the switching between stereoscopic display and planar display and the method of planar display according to this embodiment will be explained.

FIG. 1 shows a detailed block diagram of the displacement counter 37. The displacement counter 37 is a quinary counter 51. A selector 52, a flag 53 for setting the state of 3D display or 2D display. It consists of a register 54. The flag 53 is reset during the stereoscopic display described above. As explained above, the quinary counter repeatedly outputs 0°1.4, 2.3 in the order of 0° to the selector 52. When the flag 53 is reset, the selector 52 outputs the input from the quinary counter 51 as it is to the difference data storage section 35 and the AND gate 38 for stereoscopic display. To perform a two-dimensional display, a number from 0 to 4 is input into the CPII 31 from an input device 50 such as a keyboard device. The CPU 31 inputs the input numerical value into the register 54 and sets the flag 53. The register 54 outputs the input numerical value to the selector 52. When the flag 53 is set, the selector 52 outputs the input from the register 54 to the differential data storage section 35 and the AND gate 38. When the input from the input device is Ol, that is, the content of the register 54 is 0, the position corresponding to the corresponding semi-cylindrical lens, 11
．． Displayed on 12.13.14.15.

Since the same display is performed for all scanning lines and all semi-cylindrical lenses (all columns), the image displayed on the display module 30 is a two-dimensional display. The input from the input device is 1.
2.3, 12 and 14.1 in Figure 3, respectively.
The data of the picture element above No. 5 is displayed at the position corresponding to all picture elements. When the content of the register 54 is 4, one screen is displayed with only basic data.

In this embodiment, the display from three sides has been explained, that is, the three-dimensional display using the picture element groups 12.14, 11.13, and 15.13 in FIG. 3 has been explained. It is clear that by further increasing the number of surfaces, a more three-dimensional display becomes possible.

[Effects of the Invention] As explained above, according to the present invention, not only can a three-dimensional image be displayed without using special glasses, but also a three-dimensional image can be displayed by combining basic image data and difference data. It is possible to display a two-dimensional image by displaying only one of the basic data and the differential data.

[Brief explanation of drawings]

Fig. 1 is a block diagram of an embodiment of a displacement counter for switching between 3D and 2D display, Fig. 2 is a perspective view of an embodiment of the display section of the present invention, and Fig. 3 is the effect of a semi-cylindrical lens. FIG. 4 is a block diagram of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Display part, 2... Lens group, 2A... Semi-cylindrical lens, 3... Liquid crystal display body, 21.22, 23.24... Viewing path, 30... Display module , 31...-cpu. 32... External storage device, 33... Program memory, 34... Basic data storage section, 35... Differential data storage section, 36... Male controller, 37... Displacement counter, 38...・AND gate, 39... Adder, 40... D/^ converter, 41... Analog shift register, 42... Pass line, 50... Input device, 51... Quinary counter , 52...-Selector, 53... Flag, 54... Register. Figure 2

Claims (1)

[Scope of Claims] 1) In a display device capable of displaying an image three-dimensionally, means for specifying whether the image is to be displayed three-dimensionally or two-dimensionally, and an image display based on the specification by the specifying means. 1. A display device comprising means for switching to a two-dimensional display. 2) The display device according to claim 1, wherein the two-dimensional display is based on transferring an image seen from one viewing angle to an image position seen from another viewing angle.