JP2951235B2 - Liquid crystal display - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-dimensional liquid crystal display device, and particularly to a liquid crystal stereoscopic display device capable of shortening a suitable viewing distance even if a pixel pitch is small.
In addition, the present invention relates to a liquid crystal stereoscopic display device capable of achieving uniform luminance and reducing crosstalk when the viewpoint moves in the horizontal direction.

[0002]

2. Description of the Related Art One of the so-called stereoscopic image display systems that can form a stereoscopic image without using special glasses, for example, a light source is divided into stripes and the light is incident on the left and right eyes. Some separate light. In this method, as shown in FIG. 1, light emitted from a backlight 2 that emits light in a planar shape is emitted by an optical filter 40 having an opening 40a and a light shielding portion 40b.
In divided into stripes, it is intended to form alternately a left eye image I _L and right eye image I _R for each line on the liquid crystal panel 1.

In this method, an appropriate viewing distance D from an image forming surface of the liquid crystal panel 1 to a viewpoint at which a stereoscopic image can be observed.
Is proportional to the optical distance L ₁ between the image forming surface of the liquid crystal panel 1 and the optical filter 4 as expressed by the following equation 1, and the distance E between human eyes and the pixel pitch (dot pitch) of the liquid crystal panel 1 ) It is proportional to the value obtained by subtracting 1 from the ratio to P.

[0004]

D = L ₁ × [(E / P) −1]

[0005] Here, when no space is provided between the liquid crystal panel 1 and the optical filter 4 and the liquid crystal panel 1 is brought into close contact with the surface of the optical filter 4, the distance between the optical filter 4 and the image forming surface of the liquid crystal panel 1 is reduced. Between the incident side glass and the incident side polarizing plate of the liquid crystal panel 1, the thickness of the glass is T ₁ , the refractive index is n ₁ , the thickness of the polarizing plate is T ₂ , and the refractive index is n ₂ . if the optical distance L ₁ can be expressed by equation 2.

[0006]

L ₁ = T ₁ / n ₁ + T ₂ / n ₂

[0007]

It is apparent from the above equation 1 that when the pixel pitch P is reduced in order to increase the definition of an image, the suitable viewing distance D increases. The thickness T ₁ is 1.1 mm, the glass refractive index n ₁ is 1.53, the polarizing plate thickness T ₂ is 0.2 mm,
Since the refractive index n _{2 of the} polarizing plate is 1.49, when the high-definition liquid crystal panel 1 having a pixel pitch P of 70 μm and an interocular distance E of 65 mm is used, the suitable viewing distance becomes 780 mm, which is a problem in practicality. There is.

Further, when the viewpoint moves in the horizontal direction, crosstalk between the right-eye image and the left-eye image easily enters the field of view at the same time. In particular, the aperture area of each pixel is increased in order to increase the brightness, and the inter-pixel area is increased. When the black matrix is made thinner, there is a problem that crosstalk is more likely to occur.

Conversely, if the black matrix is made thicker to prevent crosstalk, there is a problem that the luminance tends to change when the viewpoint moves in the horizontal direction.

The present invention has been made in view of the above circumstances and has been made to reduce the suitable viewing distance even when the pixel pitch is small, and to achieve uniform luminance and reduce crosstalk when the viewpoint moves in the horizontal direction. It is an object of the present invention to provide a liquid crystal stereoscopic display device.

[0011]

According to a first aspect of the present invention, there is provided a liquid crystal stereoscopic display device including a light source device that emits light in a planar manner and a color liquid crystal panel that forms a left-eye image and a right-eye image. In order to achieve this object, the light source device includes a color separation unit that converts the light emission into a set of minute light emission of each color arranged in a predetermined order.

According to a second stereoscopic display device of the present invention, there is provided a liquid crystal stereoscopic display device including a light source device that emits light in a plane and a black-and-white liquid crystal panel that forms a left-eye image and a right-eye image.
The light source device is provided with one for the pixels corresponding to the number of viewpoints of the stereoscopic image, and includes a color separation unit that converts a light emission into a set of minute light emission of red, blue, and green arranged in a predetermined order; A color filter corresponding to each color of the color separation means is arranged on the emission side of the panel at a distance from the liquid crystal panel, and a traveling direction of each color is restricted by the emission color of the light source side and the color filter. Is separated into left and right color information.

[0013]

The color liquid crystal panel has a built-in color filter composed of three primary color filters arranged in a predetermined color order in a one-to-one correspondence with each pixel.

Each color filter of the color liquid crystal panel transmits light of the same color and absorbs light of a different color. Therefore, the color of the filter of the color liquid crystal panel is the same as that of the minute light emitted by the color separation means. The minute light emission of different colors is shielded, and the light emission direction of the light source device is limited for each color.

In a color liquid crystal panel in which pixels of three primary colors are arranged in order, an image of the same color is formed for every three pixels. Therefore, when considering each color, the pixel pitch of the same color (hereinafter, the same color) is used instead of the pixel pitch P. The appropriate viewing distance D can be obtained from the above equation 1 using the pixel pitch.

Here, since the same color pixel pitch is three times the pixel pitch P, the suitable viewing distance D is reduced to a short distance close to one third of the conventional one.

Further, compared with the conventional example in which the light emitted from the backlight is divided into stripes by an optical filter, the width of the minute light emission of each color is wider, so that the uniformity of the luminance can be improved when the head is moved sideways.

Further, since the pixels displayed left and right are not close, no crosstalk occurs when the head is moved sideways.

When a color filter is arranged on the emission side of the monochrome liquid crystal panel, the filters of each color transmit light of the same color and absorb light of different colors. Among them, minute light emission of a color different from the color of the color filter is shielded, and the light emission direction of the light source device is limited for each color. Therefore, the traveling direction of each color (red, green, and blue) is restricted by the positional relationship between the light emission of the light source device and the color filters disposed on the emission side of the monochrome liquid crystal panel, and each color (red, green, blue) travels through the vertical line of the monochrome liquid crystal panel. Separation is possible, and color stereoscopic display is possible even with a black and white liquid crystal panel.

In order to perform color display using a monochrome liquid crystal panel, pixels corresponding to the three primary colors are arranged in order and displayed on the monochrome liquid crystal panel, so that an image of the same color is formed for every three pixels. Therefore, when considering each pixel corresponding to each color, the above formula 1 is used using the pixel pitch corresponding to the same color (hereinafter referred to as the same color pixel pitch) instead of the pixel pitch P.
Thus, the appropriate viewing distance D can be obtained.

Here, since the pixel pitch corresponding to the same color is three times the pixel pitch P, the suitable viewing distance D is reduced to a short distance close to one third of the conventional one.

Further, compared with the conventional example in which the light emitted from the backlight is divided into stripes by an optical filter, the width of the minute light emission of each color is wider, so that the uniformity of the luminance when the head is moved laterally is enhanced.

Further, since the pixels displayed left and right are not closely adjacent to each other, no crosstalk occurs when the head is moved sideways.

[0024] Moreover, without shortening the proper viewing distance D, by increasing the optical distance L _1, placing the dispersion type liquid crystal panel between the light source device and a color liquid crystal panel or a monochrome liquid crystal panel, the distributed The liquid crystal panel can be switched on and off to switch between a state in which the color-separated light emitted from the light source device is transmitted and a state in which the separated colors are mixed and emitted as white light to the liquid crystal panel. When the display is switched to the 2D display, the dispersed liquid crystal panel combines the respective color lights to emit white light, so that the images of all the pixels can be visually recognized by both the left and right eyes, and the resolution at the time of the 2D display can be increased. .

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A liquid crystal stereoscopic display according to a first embodiment of the present invention will be described in detail with reference to FIG.

As shown in FIG. 2, this liquid crystal stereoscopic display device transmits light emitted from a backlight 2 disposed on the back side of a color liquid crystal panel 1 and transmitted through the color liquid crystal panel 1 to the front side of the color liquid crystal panel 1. From the observer.

The color liquid crystal panel 1 has a blue pixel 1a and a red pixel 1a formed in stripes, respectively.
b, a green pixel 1c, and a black matrix 1d between the pixels 1a to 1c.

The backlight 2 emits white light in a planar manner, and three primary color filters of a blue filter 3a, a red filter 3b and a green filter 3c are provided on the surface of the backlight 2 on the color liquid crystal panel 1 side. The color filters 3 arranged in the reverse order of the blue pixel 1a, the red pixel 1b, and the green pixel 1c of the panel 1 are formed by, for example, applying a dye or a pigment in a stripe shape.

However, it is not essential for the present invention to form the color filter 3 on the surface of the backlight 2, and the color filter 3 is arranged at an arbitrary position between the backlight 2 and the color liquid crystal panel 1. can do.

Each of the color filters 3a to 3c is one for each of the pixels 1a to 1c of the number of viewpoints, that is, in this embodiment in which the number of viewpoints is two, one of each of the color filters 3a to 3c is provided for two pixels. It is arranged to correspond.

It is not necessary to provide a light shielding portion such as a black matrix between the color filters 3a to 3c. Therefore, the width of each color filter 3a to 3c in the horizontal direction is equal to one pixel.
The width is slightly larger than twice the width of a to 1c.

Of the light emitted from the backlight 2, only the same color as the color filters 3a to 3c of the color filter 3 passes through the color filters 3a to 3c, and the other colors are absorbed. As a result, the light emitted from the backlight 2 has blue, red, and green colors corresponding to the pixels 1 a to 1 of the color liquid crystal panel 1.
The light is emitted from the color filter 3 as minute light emission in the form of stripes arranged in the reverse order of c.

The pixels 1a to 1c for each color provided on the color liquid crystal panel 1, for example, the red pixel 1b transmits light of the same color emitted from the color filter 3, that is, red light, but transmits other blue light and Since the green light is absorbed, the observer sees the minute light emission of blue and green from the viewpoint of the observer, and the direction of the minute light emission of the color filter 3 is limited for each color.

Therefore, by alternately forming a left-eye image and a right-eye image for each red pixel 1b of one line of the color liquid crystal panel 1, a red stereoscopic image can be observed.

Similarly, since other blue and green three-dimensional images other than red can be observed, the observer can observe a three-dimensional color image in which the three primary colors of blue, red and green are combined.

The suitable viewing distance D of the three-dimensional image of each color is determined by the pixel pitch of each color, that is, the pixel pitch of the same color in accordance with Equation 1, so that the 3-pixel pitch 3P is substituted for the pixel pitch P of Equation 1. The optimal viewing distance is determined by
The optimal viewing distance D is reduced to a short distance close to one third of the conventional distance.

Each color filter 3a of the color filter 3
Since the light-shielding portion is not provided between 3c and 3c, the width of the minute light emission of each color is wider than in the conventional example in which the light emission of the backlight 2 is divided into stripes by the optical filter 4, and when the head is moved sideways. Brightness uniformity is improved.

Further, since the left and right are separated for each color, the pixels to be separated from the left and right do not come close to each other and no crosstalk occurs.

In this embodiment, it is possible to form a 2D image by the color liquid crystal panel 1.

The backlight 2 is not particularly limited as long as it emits light in a planar manner. For example, a cold cathode flat fluorescent lamp or a cathode luminescent flat lamp can be used.

As shown in FIGS. 3 and 4, for example, the cold cathode type flat fluorescent lamp includes a pair of left and right discharges in a glass housing 4 including a front glass panel 4a, a rear glass panel 4b, and a surrounding glass frame 4c. Electrodes 5a and 5b are arranged, a phosphor screen 6 for emitting white light is formed on the back surface of front glass panel 4a and the front surface of back glass panel 4b between both electrodes, and a chip tube 7 is arranged between both discharge electrodes 5a and 5b. Is done.

It is also possible to use a cathode luminescence flat fluorescent lamp as the backlight 2.

The cathodoluminescence flat fluorescent lamp is
For example, as shown in FIG. 5, a back electrode 9 is provided in a glass housing 8 including a box-shaped front glass 8 a having an open back and a box-shaped back glass 8 b having an open front in order from the back.
A structure in which a line cathode 10, a first grid electrode 11, and a second grid 12 are housed, and a fluorescent film 13 for emitting white light and an aluminum thin film 14 as an accelerating electrode are laminated on a rear surface of a front portion of a front glass 8a in order from the front side. It has.

The line cathode 10 has a support 15
Thus, it is supported at a position separated from the back electrode 9 by a predetermined distance.

Further, in this embodiment, the color filter 3 composed of a dye or a pigment is used as the color separating means, but a color filter composed of a multilayer interference filter can be used instead of the color filter 3.

When a color filter composed of the multilayer interference filter is used, except for necessary light, the backlight 2
Since the light is reflected to the side and then re-used after being irregularly reflected by the backlight 2, the light use efficiency can be improved.

In the second embodiment of the present invention, a cold cathode flat fluorescent lamp is used as the backlight 2, and this cold cathode flat fluorescent lamp is built in the color liquid crystal panel 1 as shown in FIG. The color pixels 1a of the color liquid crystal panel 1 are arranged in the order reverse to the color order of the color filters.
And a color fluorescent surface 16 including a blue fluorescent light emitting surface 16a that emits blue light, a red fluorescent light emitting surface 16b that emits red light, and a green fluorescent light emitting surface 16c that emits green light having a width slightly larger than the width of two pixels of 〜1c. .

In this embodiment, the color phosphor screen 16 itself has a function of a color separating means for converting into a set of minute light emission of each color of red, blue and green arranged in a predetermined order. The principle and effect of enabling the color three-dimensional display by the phosphor screen 16 and the color liquid crystal panel 1 are the same as those of the above-described embodiment, so that detailed description thereof is omitted to avoid duplication.

In this embodiment, instead of the cold-cathode flat fluorescent lamp, the color filters of the color liquid crystal panel 1 are arranged in the reverse order of the color order, and the color pixels 1a to 1c of the color liquid crystal panel 1 are respectively arranged. The cathode luminescent flat fluorescent lamp is provided with a color fluorescent film including a blue fluorescent light emitting surface emitting blue light, a red fluorescent light emitting surface emitting red light, and a green fluorescent light emitting surface emitting green light having a width slightly larger than the width of two pixels. The light 2 may be used.

In the third embodiment of the present invention shown in FIGS. 7 and 8, a dispersion type liquid crystal panel 17 is arranged between a color liquid crystal panel 1 and a color filter 3 formed on the front surface of a backlight 2. You.

When the dispersion type liquid crystal panel 17 is turned on, it becomes transparent as shown in FIG. 7, so that a three-dimensional display can be performed according to the same principle as in the above-described embodiment, and when it is turned off, as shown in FIG. The respective color lights separated by the color filter 3 are combined to emit white light.

At the time of this white light emission, the color liquid crystal panel 1
When the D image is formed, the pixels 1a to 1c of all the lines of the color liquid crystal panel 1 can be seen by the left and right eyes. It is possible to increase the resolution and the image quality as compared with the above-described embodiments in which only 1c is seen.

In the fourth embodiment of the present invention shown in FIG. 9, the color filters 3 are arranged in the same order as the color order of the color filters of the color liquid crystal panel 1, and the width of each of the pixels 1a to 1c of the color liquid crystal panel 1 respectively. , And each of the color filters 3a to 3c has a width slightly larger than a width obtained by adding a width four times as large as the width of the four black stripes 1d.

In this embodiment, the color liquid crystal panel 1
Four images having different viewpoints are formed for each line, and a red image is set to the red pixels R1 to R4, and blue pixels B1 to B4 are set.
, A green image is formed on each of the green pixels G <b> 1 to G <b> 4.

The fifth embodiment of the present invention shown in FIG. 10 uses a monochrome liquid crystal panel 20 while the first to fourth embodiments use a color liquid crystal panel 1.
It performs color liquid crystal stereoscopic display.

As shown in FIG. 10, in this liquid crystal stereoscopic display device, light emitted from the backlight 2 disposed on the back side of the black and white liquid crystal panel 20 and transmitted through the black and white liquid crystal panel 20 is transmitted through the color filter 30 to the black and white liquid crystal panel. An observer observes from the front side of the liquid crystal panel 20.

The monochrome liquid crystal panel 20 displays a right-eye image and a left-eye image every other line. In FIG. 10, a lattice represents a display pixel, and a thin film transistor (TFT) substrate constituting a liquid crystal panel for simplification,
The black matrix and the like are omitted. The liquid crystal panel 20 is a black-and-white liquid crystal panel, and information for red (R), blue (B), and green (G) pixels is stored in each pixel so that a viewer can observe a color image. It is formed in a stripe shape. That is, the pixel 20a has a blue image for the left eye, the pixel 20b has a red image for the left eye, the pixel 20c has a green image for the left eye, the pixel 20a 'has a blue image for the right eye, and the pixel 20b' has a right image. A red-eye image and a right-eye green image are displayed on the pixels 20c ', respectively.

The backlight 2 emits white light in a planar manner, and a color filter 3 is arranged between the backlight 2 and the liquid crystal panel 20. The color filter 3 includes a blue filter 3a, a red filter 3
b and the green filter 3c are three primary color filters of the liquid crystal panel 20 for the blue pixel 20a (20a ′), the red pixel 20b (20b ′), and the green pixel 20c (20).
For example, it is formed by applying a dye or a pigment in a stripe shape so as to be arranged in the reverse order to c ′).

Each of the color filters 3a to 3c is one for each of the pixels 20a to 20c having the number of viewpoints, that is, in this embodiment in which the number of viewpoints is two, one for each of the two pixels. It is arranged to correspond.

It is not necessary to provide a light shielding portion such as a black matrix between the color filters 3a to 3c. Therefore, the width of each color filter 3a to 3c in the horizontal direction is equal to the width of each pixel 2a.
The width is slightly larger than twice the width of 0a to 20c.

Further, in this embodiment, a color filter 30 is arranged on the emission side of the liquid crystal panel 20. In the color filter 30, the blue color filter 30a, the red color filter 30b, and the green color filter 30c are three primary color filters, and the blue pixel 20a (20a ') of the liquid crystal panel 20;
Red pixel 20b (20b ') and green pixel 2
For example, it is formed by applying a dye or a pigment in a stripe shape so as to be arranged in the reverse order to 0c (20c ′).

Each of the color filters 30a to 30c is one for each of the pixels 20a to 20c having the number of viewpoints, that is, in this embodiment in which the number of viewpoints is two, one for each of the two pixels. The widths of the color filters 30a to 30c in the horizontal direction are slightly smaller than twice the width of the pixels 20a to 20c.

Of the light emitted from the backlight 2, only the same color as the color filters 3a to 3c of the color filter 3 passes through the color filters 3a to 3c, and the other colors are absorbed. As a result, the light emitted from the backlight 2 has blue, red, and green colors corresponding to the pixels 20 a to 20 a of the liquid crystal panel 20.
The light is emitted from the color filter 3 as minute light emission in the form of stripes arranged in the reverse order of c.

The transmitted light from each of the pixels 20 a to 20 c of the liquid crystal panel 20 is given to each of the color filters 30. For example, the red filter 30b is the same color light emitted from the color filter 3, that is, the liquid crystal panel 2
The red light from the pixel 20b of 0 is transmitted, but the other blue light and green light are absorbed. Therefore, from a viewer's point of view, the minute blue and green light emission is blocked by the color filter 30, and the color filter 3 The traveling direction of the minute light emission from is limited for each color.

Therefore, by alternately forming a left-eye image and a right-eye image for each red pixel 20b of one line of the liquid crystal panel 20, a red stereoscopic image can be observed.

Similarly, since other blue and green three-dimensional images other than red can be observed, the observer can observe a three-dimensional color image in which the three primary colors of blue, red and green are combined.

As described above, in this embodiment, color stereoscopic display can be performed even by using an inexpensive black-and-white liquid crystal panel having a better number of steps and a higher yield than a color liquid crystal panel.

In the above embodiment, the color filter 3 is disposed between the backlight 2 and the monochrome liquid crystal panel 20, but the color filter 3 is formed on the surface of the backlight 2. Can also.

As a method of realizing a collection of minute emission of red, green, and blue light, a color filter formed of a dye or a pigment as in the above-described embodiment is used. It is also possible to form a filter from a multilayer film as described above, and in the case of a backlight having a phosphor screen formed on a plane, such as a cold cathode type flat fluorescent lamp or a cathodoluminescence flat light source, This phosphor screen can be realized by separately forming red, green, and blue phosphors. In particular, the latter three examples are also advantageous in increasing the light use efficiency.

In the fifth embodiment, similarly to the third embodiment, a dispersion type liquid crystal panel is arranged between a white liquid crystal panel 20 and a color filter 3 formed on the front surface of a backlight 2, and is turned on. In some cases, three-dimensional display is performed, and when off, the respective color lights separated by the color filters 3 are combined in the same manner as the diffusion sheet to emit white light, and the liquid crystal panel 10 forms a 2D color image. Can also.

[0071]

As described above, in the liquid crystal stereoscopic display device according to the present invention, the light source device is provided with one light emission for each of the pixels of the number of viewpoints of the stereoscopic image. Since there is provided a color separation unit for converting into a set of blue and green minute light emission, among the minute light emission color-separated by the color separation unit, the minute light emission of a color different from the color of the filter of the color liquid crystal panel is shielded, The traveling direction of light emission of the light source device is limited for each color.

As a result, the suitable viewing distance is determined by the same color pixel pitch of each color obtained by multiplying the pixel pitch by the number of colors separated by the color separation means, and using a high brightness and high resolution color liquid crystal panel having a fine pixel pitch. Also, the suitable viewing distance is reduced to a short distance close to one-seventh of the colors to be separated.

Further, as compared with the conventional example in which the light emission of the backlight is divided into stripes by an optical filter, since the width of the minute light emission of each color is wider, the uniformity of the luminance is improved when the head is moved sideways.

Further, since the left and right separated pixels are not close, no crosstalk occurs when the head is moved sideways.

In the present invention, especially when a dispersion type liquid crystal panel is arranged between the light source device and the color liquid crystal panel, each color separated by the color separation means is kept separated by turning on the dispersion type liquid crystal panel. The light can be transmitted, or the dispersion type liquid crystal panel can be turned off, and the light can be converted into white light of each color and emitted.

When performing 2D display, by turning off the dispersion type liquid crystal panel and changing it to white light in which each color is mixed and emitting it, the images of all lines can be viewed by the right and left eyes. That is, it is possible to watch a high-quality image by increasing the resolution.

Further, according to the present invention, even when a black and white liquid crystal panel without a built-in color filter is used, color three-dimensional display is possible, and the panel cost can be greatly reduced.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating the principle of a conventional liquid crystal stereoscopic display device.

FIG. 2 is a principle diagram of the liquid crystal stereoscopic display device according to the first embodiment of the present invention.

FIG. 3 is a front view of a general cold cathode flat fluorescent lamp.

FIG. 4 is a sectional view taken along line AA of FIG. 3;

FIG. 5 is a perspective view of a general cathodoluminescent flat fluorescent lamp.

FIG. 6 is a principle diagram of a liquid crystal stereoscopic display device according to a second embodiment of the present invention.

FIG. 7 is a principle diagram of a liquid crystal stereoscopic display device according to a third embodiment of the present invention.

FIG. 8 is a principle diagram of a liquid crystal stereoscopic display device according to a third embodiment of the present invention.

FIG. 9 is a principle diagram of a liquid crystal stereoscopic display device according to a fourth embodiment of the present invention.

FIG. 10 is a principle diagram of a liquid crystal stereoscopic display device according to a fifth embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 color liquid crystal panel 2 backlight 3 color filter 16 color fluorescent surface 16a blue fluorescent light emitting surface 16b red fluorescent light emitting surface 16c green fluorescent light emitting surface 20 black and white liquid crystal panel 30 color filter

Continuation of the front page (72) Inventor Susumu Tanase 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (58) Field surveyed (Int. Cl. ⁶ , DB name) G02B 27/22 G02F 1/13 505 G02F 1/1335 530

Claims (6)

(57) [Claims] 1. A liquid crystal three-dimensional display device comprising: a light source device that emits light in a planar shape; and a color liquid crystal panel that forms a left-eye image and a right-eye image, wherein the light source device emits light to pixels of the number of viewpoints of the three-dimensional image. A liquid crystal stereoscopic display device comprising: a color separation unit that is provided for each of the color filters and that converts a set of minute light emission of each of red, blue, and green colors arranged in a predetermined order. 2. A liquid crystal stereoscopic display device comprising: a light source device that emits light in a planar manner; and a monochrome liquid crystal panel that forms a left-eye image and a right-eye image. Color separation means for converting into a set of minute light emission of each color of red, blue and green arranged in a predetermined order, and being separated from the liquid crystal panel on the emission side of the liquid crystal panel. A color filter corresponding to each color of the separation means is arranged, and the light emitting color on the light source side and the color filter restrict a traveling direction of each color, and separates an image on the liquid crystal panel into left and right color information. Liquid crystal stereoscopic display. 3. A three-dimensional liquid crystal display device according to claim 1, wherein said color separation means comprises a color filter. 4. The liquid crystal stereoscopic display device according to claim 1, wherein said color separation means comprises an interference filter having a selective transmission of colors. 5. The liquid crystal stereoscopic display device according to claim 1, wherein said color separation means comprises minute fluorescent surfaces of respective colors arranged in a predetermined order of the light source device. 6. The three-dimensional liquid crystal display device according to claim 1, wherein a dispersion type liquid crystal panel is disposed between the light source device and the liquid crystal panel.