JPH0713119A - Stereoscopic display device - Google Patents

Abstract

PURPOSE:To simply and easily realize the display of a color stereoscopic picture by considering the corresponding relation between a lenticular lens and the primary color cell of a color display body. CONSTITUTION:This device is provided with a display body 1 in which the primary color cells 11R, 11G and 11B are arrayed in a right-and-left direction and which performs display with plural continuous primary color cells as one picture element, and a lenticular lens plate 2 disposed on the front surface of the display body 1 so that one lenticular lens 2Z may correspond to every even primary color cells and the axis of the lens 22 may be aligned with the up-and-down direction of the display body 1; and the primary color cell positioned in the right half, among plural primary color cells corresponding to the lens 2Z, displays picture data for a left eye and the one positioned in the left half displays picture data for a right eye.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device suitable for stereoscopic display by combining a display body and a lenticular lens.

In recent years, in order to improve the expressive power of a display device, it is important to perform stereoscopic display, and various stereoscopic display systems have been proposed. Most of these methods utilize the human characteristic of stereoscopically seeing images that are different between the right eye and the left eye, that is, images that are shifted mainly in the left-right direction.

Therefore, the left and right images are classified according to the method of delivering them to the left and right eyes. Among them, the method using a lenticular lens (hereinafter referred to as the lenticular method) does not require wearing eyeglasses. However, progress is expected, but there are still many problems to be solved.

[0004]

2. Description of the Related Art FIG. 7 is a plan view of a main part of a display device and its vicinity as viewed from above for explaining the principle of a lenticular system.

In the figure, 1 is a display body, 1R is a right-eye data display cell, 1L is a left-eye data display cell, 2 is a lenticular lens plate, 2Z is a lenticular lens, 3 is a stereoscopic image observation region, and 3L. Is the left eye observation area, 3R
Indicates the right-eye observation area, respectively.

The lenticular lens plate 2 is a lenticular lens 2Z which is a cylindrical lens having a semi-cylindrical cross section and a columnar shape in the vertical direction.
Are arranged on the front surface with their axes aligned with the vertical direction of the display body 1.

One lenticular lens 2Z is provided for every even number of display cells, that is, for every two display cells 1R and 1L in FIG.
R is a pixel forming an image for the right eye, and the display cell 1L is a pixel forming an image for the left eye.

The pixel light from the display cells 1R and 1L is
As shown in the drawing, the display cell 1R is arranged on the left side of the lenticular lens 2Z and the display cell 1L is arranged on the right side of the lenticular lens 2Z. Reach 3.

Therefore, by placing the right eye in the right eye observation area 3R and the left eye in the left eye observation area 3L in the stereoscopic image observation area 3, the display cell 1R is set in the right eye.
Since only the light of the pixel from the display cell 1L and the light of the pixel from the display cell 1L reach the left eye, a stereoscopic image can be displayed to the observer.

By the way, if a color display is used as the display 1 and a color stereoscopic image is displayed, it is not easy as described above and many problems occur.

For example, a cathode ray tube.
y tube: CRT) and liquid crystal display (liqu)
In an id crystal display (LCD), R, that is, red (hereinafter, the symbol only for R indicates red), G or green (hereinafter, the symbol for only G indicates green), B or Since primary color cells such as blue (hereinafter, the symbol of only B indicates blue) are arranged side by side in the left-right direction, a problem of primary color separation occurs.

FIG. 8 is a plan view for explaining the problem of primary color separation in which the vicinity of the display device is viewed from above, and the symbols used in FIG. 7 represent the same parts or the same parts. It has meaning.

In the figure, 11R is a red primary color cell, 11R
G indicates a green primary color cell, and 11B indicates a blue primary color cell.

The right-eye data display cell 1R is composed of a red primary color cell 11R, a green primary color cell 11G and a blue primary color cell 11B, and the left eye data display cell 1L is also a red primary color cell 11R and a green primary color. Cell 11G and blue primary color cell 11B
It consists of and.

Due to such a structure, the green primary color cell 11 located substantially in the center of the display cell 1R or 1L.
The light emitted from G gathers in the approximate center of the right-eye observation region 3R and the approximate center of the left-eye observation region 3L in the stereoscopic image observation region 3, and does not reach other portions.

The above-mentioned phenomenon also occurs in the light emitted from the red primary color cell 11R or the light emitted from the blue primary color cell 11B, and as a result, in the stereoscopic image observation area 3. Does not cause color mixing, and the R, G, and B primary colors are displayed separately. Therefore, as shown in FIG. 8, approximately the center of the right eye observation region 3R in the stereoscopic image observation region 3, and If you place your eyes in the approximate center of the left eye observation area 3L, green monochrome
Will be displayed.

Incidentally, the above-mentioned problem is not limited to the case of displaying a color stereoscopic image, but is also different from the case of performing so-called area gradation display in which gradation display is performed by changing the display area in a pixel.
If the arrangement of the pixels is in the left-right direction, the same occurs.

In order to solve the problem of primary color separation,
Redesigning the display body 1 so that the primary color cells 11R, 11G, and 11B are arranged in the vertical direction, or rotating the display body 1 having a conventional structure by 90 °, the primary color cells 11R, 11G, and
There has been proposed a vertical placement method in which 11B are used so as to be arranged vertically. FIG. 9 is an explanatory diagram of a display body for explaining the vertical placement method, and the same symbols as those used in FIGS. 7 and 8 represent the same parts or have the same meanings.

[0019]

Among the above-mentioned conventional techniques for solving the problem of primary color separation, the primary color cells 11R and 11R are used.
Redesigning the display body so that G and 11B are arranged in the vertical direction requires designing and manufacturing a display body different from that used in a normal display device, thus avoiding an increase in cost. You cannot do it.

Similarly, in the horizontal placement method, a new display body is not required, but since a display body that is normally long in the horizontal direction is rotated and is used in the vertical direction, it is compatible with a normal display device. In addition, there is a problem that the application is limited.

The present invention intends to realize the display of a color stereoscopic image simply and easily by considering the correspondence between the lenticular lens and the primary color cells of the color display.

[0022]

FIG. 1 is a plan view of an essential part of a display device and its vicinity as seen from above for explaining the principle of the present invention. The same symbols as those used in FIGS. Symbols represent the same part or have the same meaning.

In the present invention, the primary color cells are 11R, 11G,
In the display body 1 arranged in the order of 11B, one lenticular lens 2Z is provided corresponding to the even number of the primary color cells, and among the even number of primary color cells,
The primary color cell located in the right half is the left eye data display cell 1L
In addition, the primary color cell located in the left half is used as the right-eye data display cell 1R to display a stereoscopic image.

In FIG. 1, one lenticular lens 2Z corresponds to every two primary color cells. That is, each of the left-eye data display cell 1L and the right-eye data display cell 1R is composed of one primary color cell.

The operation of the display device, which is closer to the center Y, will be described below.

One lenticular lens 2Z corresponds to the primary color cells 11B and the primary color cells 11G arranged from the center Y to the left, and the primary color cell 11B, which is the right half of the primary color cells 11B, is the left eye data display cell 1L and the left eye image data is stored therein. The primary color cell 11 that is input and outputs the corresponding light, and is the left half
G receives the right-eye image data as the right-eye data display cell 1R and outputs the corresponding light.

Therefore, the light of the pixel emitted from the primary color cell 11B of the left eye data display cell 1L reaches the left eye observation area 3L in the stereoscopic image observation area 3 to display the B image, and the right eye data is displayed. The light of the pixel emitted from the primary color cell 11G of the display cell 1R reaches the right eye observation area 3R in the stereoscopic image observation area 3 and displays the G image.

A lenticular lens 2Z is also provided for the primary color cells 11R and the primary color cells 11G arranged rightward from the center Y.
The primary color cell 11R, which is the left half of the primary color cell 11R, outputs the corresponding light when the right eye image data is input as the right eye data display cell 1R.
G is a left-eye data display cell 1L to which left-eye image data is input and outputs corresponding light.

Therefore, the light of the pixel emitted from the primary color cell 11R of the right eye data display cell 1R reaches the right eye observation region 3R in the stereoscopic image observation region 3 to display the R image, and the left eye data is displayed. The light of the pixel emitted from the primary color cell 11G of the display cell 1L reaches the left eye observation area 3L in the stereoscopic image observation area 3 and displays the G image.

In exactly the same manner as described above, one lenticular lens is associated with every two other primary color cells, the left half is the right eye data display cell 1R, and the right half is the left eye data display cell 1L. As the right eye observation region 3R and the left eye observation region 3 in the stereoscopic image observation region 3
Since the lights of the pixels of the R, G, and B primary colors from the respective primary color cells are evenly distributed to the respective R, the images displayed there are mixed to give a natural color.

From the above, in the stereoscopic display device according to the present invention, (1) when viewed from the front, the primary color cells are arranged in the left-right direction and a plurality of continuous primary color cells are displayed as one pixel. The display body (for example, display body 1) corresponds to one lenticular lens (for example, lenticular lens 2Z) for each even-numbered primary color cell on the front surface of the display body, and the axis of the lenticular lens and the upper and lower sides of the display body. A lenticular lens plate (for example, lenticular lens plate 2) arranged so that the directions thereof coincide with each other, and the one located in the right half of a plurality of primary color cells corresponding to the one lenticular lens is the left eye. Characterized by displaying the image data for right eye and displaying the image data for right eye on the left half,

(2) In the above (1), one of the lenticular lenses comprises a lenticular lens plate corresponding to two primary color cells, or

(3) In (1), the image data for the right eye and the image data for the left eye are input and the one located in the right half of the plurality of primary color cells corresponding to one lenticular lens is the left eye. Display image data is created by operating the array of the right-eye image data and the left-eye image data in units of primary colors so that the image data for display and the one located in the left half display the image data for the right eye. Display data operating means (eg, display data operating means 2)
3) is provided, or

(4) The primary color cells are arranged in the left-right direction when viewed from the front, and a plurality of continuous primary-color cells are displayed as one pixel, and the image data of the odd-numbered primary-color cells in the left-right direction are input. A display body having a data input end and a data input end to which image data of even-numbered primary color cells are input, and one lenticular lens for each two primary color cells in front of the display body and a lenticular lens.・ Lenticular lens plate arranged so that the axis of the lens coincides with the vertical direction of the display, and two pieces of image data for the right eye and image data for the left eye are input and which correspond to one lenticular lens When the one located in the left half of the primary color cells is an odd-numbered primary color cell, if the right-eye image data is input to the odd-numbered data input end, The image data for the left eye is input to the even-numbered data input terminal, and the one in the right half of the two primary color cells corresponding to one lenticular lens is the odd-numbered primary color cell. In this case, display data operating means is provided for inputting the left-eye image data to the odd-numbered data input terminal and inputting the right-eye image data to the even-numbered data input terminal.

[0035]

By adopting the above means, in the display body, the primary color cells corresponding to the right eye or the left eye occupy half of the lenticular lens, and the light emitted from each primary color cell is observed in the right eye or the left eye. It reaches the entire area. Therefore, the R, G, and B lights overlap in each observation region,
A good color three-dimensional display image can be obtained because it is mixed with colors and becomes visible to the eye. Moreover, since the display can be used without changing the conventional display, a horizontally long display image can be realized at low cost. It is also compatible with ordinary display devices and can be used in a wide range of fields.

[0036]

FIG. 2 is a plan view of a main part of a display device for explaining one embodiment of the present invention, and the same symbols as those used in FIG. 1 represent the same parts or the same. It has meaning.

In the drawing, 21 is an image pickup device for the left eye, 22
Is an image pickup device for the right eye, and 23 is a display data operating means,
Further, Rn-L, Gn-L, and Bn-L are n in the image for the left eye.
R, G, B data, Rn-R, Gn in the th pixel
-R, Bn-R indicates R, G, B data in the n-th pixel of the right-eye image, n = 1, 2, ...
・ And

Left-eye image pickup device 21 and right-eye image pickup device 2
2 may use a normal television camera.

In the present embodiment, the display 1 is R,
An LCD in which G and B primary color cells 11R, 11G, and 11B are arranged in the left-right direction is used.

The display data operating means 23 includes the left-eye image data obtained by the left-eye image pickup device 21 and the right-eye image pickup device 22.
The image data for the right eye obtained in step 1 is introduced, the order of the image data is changed in units of primary color cells, and the image data for the left eye and the image data for the right eye are alternately arranged and output as display image data.

The lenticular lens plate 2 is composed of a plurality of lenticular lenses 2Z arranged side by side, and is arranged in front of the display 1.

The lenticular lens 2Z includes two primary color cells, for example, 11R and 11G, 11B and 11R,
One is provided for each of 11G and 11B, and the direction of the axis is aligned with the vertical direction of the display 1.

The display data operating means 23 performs data operations such as changing the order of the image data for each primary color cell unit and arranging the left-eye image data and the right-eye image data alternately as described above. It's easy.

FIG. 3 is a circuit diagram of a main part showing in detail a part of the display device shown in FIG. 2, and the same symbols as those used in FIG. 2 represent the same parts or have the same meanings. I have it.

In the figure, 31 is an A / D converter built in the left-eye image pickup device 21, and 32 is the right-eye image pickup device 2.
2 includes an A / D converter, 33 is a synchronizing signal generating means for generating horizontal / vertical synchronizing signals and various clock signals, 34 is a multiplex counter in the display data operating means 23, and 35 is a D-flip Latch means composed of a flop circuit, 36 a multiplexer, 37 serial / parallel conversion means, DCK a dot clock,
MCK indicates a multiplex clock, and MUX indicates a multiplex count. The serial / parallel conversion means 37 may be provided if necessary.

FIG. 4 is a timing chart for explaining the operation of the display data operating means shown in FIG. 3, and the same symbols as those used in FIG. 3 represent the same parts or have the same meanings. I shall.

The circuit operation of the display data operating means 23 will be described with reference to FIGS. 3 and 4.

First, the image pickup devices 21 and 22 operate in synchronization with the horizontal / vertical synchronizing signals output from the synchronizing signal generating means 33, and image pickup information at a certain position on the screen, for example, image pickup information at the upper left corner of the screen. Output from the same timing one after another.

The imaging information is the A / D converters 31 and 3
The image data for the left eye or the image data for the right eye is output in synchronism with the dot clock DCK.

The digital image data is latched by the latch means 3.
5 is taken in in synchronism with the dot clock DCK and is given to the multiplexer 36.

At this time, the image data Rn-L is
Since it is connected to the S = 3 input in the Plexer 36,
When 3 is input to the selection input S, it is selected and output. Similarly, the image data Gn-L has S = 1, the image data Bn-L has S = 5, and the image data Rn-R has S =.
0, Gn-R is connected to each input of S = 4, Bn-R is connected to each input of S = 2, respectively.

The multiplexor 36 is controlled by inputting the multiplex count MUX output from the multiplex counter 34 to the selection input S. This multiplex count MUX changes from 0 to 5 during one period of the dot clock DCK in synchronization with the multiplex clock MCK as seen in FIG.

As described above, the analog image pickup information obtained by the image pickup devices 21 and 22 is digitized by the A / D converters 31 and 32 to be image data,
The image data is taken in all at once, and sequentially selected and output in synchronization with the multiplex clock MCK.

In this way, the six types of image data are
Serial image data, which is arranged by the multiplexer and arranged in R, G, and B and in which image data for the right eye and image data for the left eye are alternately arranged, is output.

FIG. 5 is an explanatory diagram necessary for explaining a case where data operation is performed on all image data by the operation of the display data operating means described with reference to FIGS. 3 and 4.

In the upper part of the figure, image data R1-L, G1- in primary color cell units obtained by the left-eye image pickup device 31 is shown.
L, B1-L, R2-L, G2-L, B2-L ...
Rn-L, Gn-L, Bn-L and right-eye imaging device 32
Image data R1-R in units of primary color cells obtained by
G1-R, B1-R, R2-R, G2-R, B2-R
... Rn-R, Gn-R, Bn-R are shown, and in the image data of these primary color cell units, one set of R, G, B is one pixel.

The image data shown in the upper part of the drawing is changed in order in the display data operating means 23 and the left eye image data and the right eye image data are alternately arranged, as shown in the middle part of the drawing. It is input to the display 1 as display image data.

In the display data operating means 23, as is clear from the figure, for example, R1-of the left eye image data is used.
L, G1-L, B1-L and right-eye image data R1-R,
Taking G1-R and B1-R as a reference, each data is grouped together, for example, in the order of R, G, B.
At this time, the left-eye image data and the right-eye image data are always arranged adjacent to each other.

Therefore, as shown in the figure, the right-eye image data G1-R is next to the left-eye image data R1-L.
Next is the left-eye image data B1-L, next is the right-eye image data R1-R, and then is the left-eye image data G1.
-L, and then the right-eye image data B1-R are arranged. Although the order of R, B, and G is set here, the order is not limited to this.

As described above, when the display image data operated by the display data operating means 23 is input to the display body 1, the same image as the display image data, that is, as seen in the middle part of the figure. The image is displayed on the display 1.

Since the lenticular lens plate 2 having the lenticular lens 2Z described with reference to FIG. 2 is arranged on the front surface of the display body 1 displaying an image as shown in the middle of the figure, The primary color cell data of the image for the right eye is displayed on the left side of the lenticular lens 2Z of the book, and the primary color cell data of the image for the left eye is displayed on the right side of the lenticular lens 2Z. Three-dimensional images P1, P2, ... Pn seen in the lower stage are obtained.

The stereoscopic image P1 is (R1 + G1 + B1)-
It is composed of L and (R1 + G1 + B1) -R, and -L reaches the left eye and -R reaches the right eye, respectively, and the colors are mixed. Since this is the same in the other stereoscopic images P2 ... Pn, a natural color color stereoscopic image reaches the human eye.

FIG. 6 is a plan view of an essential part of a display device for explaining another embodiment of the present invention.
The same symbols as those used in represent the same parts or have the same meanings.

In the figure, 41 is a display, 42 is an upper drive circuit (data driver), and 43 is a lower drive circuit (data driver).

The display body 41 used here has a structure in which electrodes for sending data are taken out vertically and alternately for each primary color.

Therefore, for example, the image data for the right eye is input to the upper drive circuit 42 from the upper data input end, and the image data for the left eye is input to the lower drive circuit 43 from the lower data input end.

With this configuration, the display data operating means 2
No. 3 need only perform branching / transmission so that the right-eye image data is input to the upper drive circuit 42 and the left-eye image data is input to the lower drive circuit 43, respectively. Operations such as rearranging the left eye image data in units are not necessary at all.

The present invention is not limited to the embodiments described above, and many other modifications can be implemented.

For example, the primary color array in the display 1 may be an array other than R, G, B, or a color or number other than R, G, B.

In the embodiment, an LCD is used as the display body 1, but in addition to this, a CRT, PDP (plasma dis) is also used.
play panel), EL (electro lu
A display body having a flat screen such that a lenticular lens can be installed can be used.

In the embodiment, the shape of the lenticular lens is described as a part of the cylindrical surface, but it need not be a part of the cylindrical surface of a perfect circle, and may be an appropriate arc surface.

In the embodiment, the right-eye image pickup device and the left-eye image pickup device are used to obtain the image data.
It is also possible to draw the image for the right eye and the image for the left eye by a computer or the like and output the respective data.

[0073]

In the stereoscopic display device according to the present invention,
A display body in which primary color cells are arranged in the left-right direction and displays a plurality of continuous primary color cells as one pixel, and one lenticular lens for each even-numbered primary color cell on the front surface of the display body corresponds to the lenticular lens. It is equipped with a lenticular lens plate that is arranged so that the axis of the lens and the vertical direction of the display unit coincide with each other.
Of the plurality of primary color cells corresponding to the lens, the one located in the right half displays the image data for the left eye, and the one located in the left half displays the image data for the right eye.

According to the above structure, in the display, the primary color cells corresponding to the right eye or the left eye occupy half of the lenticular lens, and the light emitted from each primary color cell is observed in the right eye or the left eye. It reaches the entire area. Therefore, the R, G, and B lights overlap in each observation region,
A good color three-dimensional display image can be obtained because it is mixed with colors and becomes visible to the eye. Moreover, since the display can be used without changing the conventional display, a horizontally long display image can be realized at low cost. It is also compatible with ordinary display devices and can be used in a wide range of fields.

[Brief description of drawings]

FIG. 1 is an explanatory plan view of a main part of the vicinity of a display device as seen from above for explaining the principle of the present invention.

FIG. 2 is a main part plan view showing a display device for explaining one embodiment of the present invention.

FIG. 3 is a circuit diagram of an essential part showing in detail a part of the display device shown in FIG. 2;

FIG. 4 is a timing chart for explaining the operation of the display data operating means shown in FIG.

FIG. 5 is an explanatory diagram necessary for explaining a case where data operation is performed on all image data according to the operation of the display data operating means described with reference to FIGS. 3 and 4.

FIG. 6 is a main part plan view showing a display device for explaining another embodiment of the present invention.

FIG. 7 is an explanatory plan view of a main part of the vicinity of a display device as viewed from above for explaining the principle of the lenticular system.

FIG. 8 is a plan view of a main part of the vicinity of the display device seen from above for explaining the problem of primary color separation.

FIG. 9 is an explanatory diagram of a display body illustrating a vertical placement method.

[Explanation of symbols]

1 Display 1R Right eye data display cell 1L Left eye data display cell 2 Lenticular lens plate 2Z Lenticular lens 3 Stereoscopic image observation area 3L Left eye observation area 3R Right eye observation area 11R Red primary color cell 11G Green primary color cell 11B Blue Primary color cell 21 Left-eye imaging device 22 Right-eye imaging device 23 Display data operating means 31 A / D converter incorporated in the left-eye imaging device 21 32 A / D converter incorporated in the right-eye imaging device 22 33 Display data operating means Multiplex in 23
Counter 35 Latch means composed of D-flip-flop circuit 36 Multiplexer 37 Serial / parallel conversion means DCK dot clock MCK multiplex clock MUX multiplex count 41 Display 42 Upper drive circuit (data driver) 43 Lower drive circuit (data driver)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kenichi Nakabayashi 1015 Kamiodanaka, Nakahara-ku, Kawasaki-shi, Kanagawa Fujitsu Limited

Claims (4)

[Claims] 1. A display body in which primary color cells are arrayed in the left-right direction when viewed from the front and displays a plurality of continuous primary color cells as one pixel, and one for every even number of primary color cells on the front surface of the display body. Corresponding to the lenticular lens, and the lenticular lens plate arranged so that the axis of the lenticular lens and the vertical direction of the display unit are aligned, and a plurality of primary colors corresponding to the one lenticular lens are provided. A stereoscopic display device characterized in that cells located in the right half of the cells display left-eye image data and cells located in the left half display right-eye image data. 2. A stereoscopic display device according to claim 1, wherein one lenticular lens is provided with lenticular lens plates corresponding to two primary color cells. 3. The right-eye image data and the left-eye image data are input, and one of a plurality of primary color cells corresponding to one lenticular lens, which is located in the right half, displays the left-eye image data and the left half. A display data operating means for operating the arrangement of the right eye image data and the left eye image data in primary color units to create display image data and sending it to the display body so that the one located at the right side displays the right eye image data. The stereoscopic display device according to claim 1, wherein: 4. Data in which primary color cells are arrayed in the left-right direction when viewed from the front, a plurality of continuous primary-color cells are displayed as one pixel, and image data of odd-numbered primary-color cells in the left-right direction is input. A display body having an input end and a data input end for inputting image data of even-numbered primary color cells, and one lenticular lens for each two primary color cells on the front surface of the display body and a lenticular lens. A lenticular lens plate arranged so that the axis of the lens and the vertical direction of the display body are aligned with each other, and two lenticular lenses to which the right-eye image data and the left-eye image data are input and which correspond to one lenticular lens. When the one located in the left half of the primary color cells is an odd-numbered primary color cell, while inputting the right-eye image data to the odd-numbered data input terminal, When the image data for the left eye is input to the even-numbered data input terminal, and the one in the right half of the two primary color cells corresponding to one lenticular lens is the odd-numbered primary color cell. And a display data operating means for inputting left-eye image data to the odd-numbered data input terminal and inputting right-eye image data to the even-numbered data input terminal. apparatus.