JPH08234202A - Color display device - Google Patents

Abstract

PURPOSE: To provide a color display device in which the utilization efficiency of light from a light source is high and which is excellent in contrast. CONSTITUTION: This color display device is constituted of the light source 7, dichroic mirrors 11, 12 and 13 spectrally splitting a luminous flux from the light source 7 into the luminous fluxes of three primary colors and respectively reflecting them in different directions, a polarizing beam splitter 6 reflecting and fetching the S polarized light component of the spectrally split luminous fluxes of three primary colors, and a reflection type display device 9 provided with a microlens selectively condensing the luminous fluxes of three primary colors on corresponding picture element electrodes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color display device using a reflective display device that operates in a birefringence mode.

[0002]

2. Description of the Related Art FIG. 1 schematically shows the schematic structure of an example of a color display device using a conventional reflective display device. In this color display device, the reading light emitted from the light source 7 (for example, a metal halide lamp) is separated into a P polarization component and an S polarization component by the polarization beam splitter 6. That is, the P-polarized component passes through the polarization beam splitter 6 as it is, and the S-polarized component is reflected and bent toward the dichroic mirror 4. Dichroic mirror 4
Of the S-polarized component reflects only the wavelength component corresponding to green light and supplies it to the reflective display device 1 for green,
Wavelength components corresponding to red light and blue light are transmitted. The red light and the blue light transmitted through the dichroic mirror 4 are further separated by the dichroic mirror 5, the red light is supplied to the reflective display device 2 for red, and the blue light is supplied to the reflective display device 3 for blue.

Here, each of the reflection type display devices 1, 2, 3 for green, red, and blue modulates and reflects each supplied color light as a difference in polarization state. The green light modulated and reflected by the reflective display device 1 for green color is reflected again by the dichroic mirror 4 and enters the polarization beam splitter 6. The red light modulated and reflected by the reflective display device 2 for red is reflected again by the dichroic mirror 5 and transmitted through the dichroic mirror 4 to enter the polarization beam splitter 6. The blue light modulated and reflected by the reflective display device 3 for blue passes through the dichroic mirror 5 and the dichroic mirror 4 and enters the polarization beam splitter 6. Then, the polarization beam splitter 6
Transmits only the P-polarized component of each color light modulated as a difference in polarization state. This transmitted light is, for example, the projection lens 8
Thus, a color image is displayed by being projected on a screen (not shown).

[0004]

However, in the above-described conventional color display device, the red light modulated by the red reflective display device 2 is dichroic mirror 4.
The blue light that is transmitted through the polarization beam splitter 6 and is modulated by the reflective display device 3 for blue is transmitted through the dichroic mirror 5 and the dichroic mirror 4 and is guided to the polarization beam splitter 6. Not only does the light utilization efficiency decrease when transmitting through these dichroic mirrors, but also a phase shift occurs and the contrast ratio decreases. Of the light emitted from the light source 7, only the S-polarized component is reflected and separated by the polarization beam splitter 6 and supplied to each reflective display device, and the P-polarized component cannot be used. There is a problem that the efficiency of light is extremely low due to the following. Furthermore,
In the display device described above, the back focus of the projection lens 8 needs to be set long because of the configuration in which three reflection type display devices are provided corresponding to the three primary colors. Not only will there be major restrictions, 3
Registration of individual reflective display devices becomes difficult.

[0005]

The present invention has been made in view of such problems, and the invention according to claim 1 is
"One reflective display device that operates in a birefringence mode, a light source that supplies read light to the reflective display device, and the light emitted from the light source is used as a first primary color light, a second primary color light, and a second primary color light. A single plate type having at least a spectroscopic unit that separates the three primary color lights into three primary color lights, and a polarization beam splitter that separates each of the primary color lights split by the spectroscopic unit into an S polarization component and a P polarization component. A color display device, wherein the reflective display device modulates a first color pixel that modulates a first primary color light, a second color pixel that modulates a second primary color light, and a third primary color light. At least a plurality of unit pixels including a third color pixel and a plurality of microlenses for selectively condensing each primary color light on the corresponding color pixel, and the spectroscopic unit includes:
A first dichroic mirror that reflects the first primary color light in a first direction and transmits the second and third primary color lights;
Second dichroic mirror for reflecting the primary color light in the second direction and transmitting the third primary color light, and a third dichroic mirror or a total reflection mirror for reflecting the third primary color light in the third direction The polarization beam splitter includes a first primary color light reflected in the first direction by the first dichroic mirror and a second primary color light reflected by the second dichroic mirror in the second direction. Of the primary dichroic light and the third dichroic mirror or the total reflection mirror
A color display device configured to guide either the S-polarized component or the P-polarized component of the third primary color light reflected in the direction of to the reflective display device. Is provided,

According to a second aspect of the present invention, there is provided "a first color pixel for modulating the first primary color light, a second color pixel for modulating the second primary color light, and a third color pixel for modulating the third primary color light. And a plurality of unit pixels each including a plurality of color pixels, and a plurality of microlenses for selectively condensing each primary color light into a corresponding color pixel, and a reflective display device operating in a birefringence mode. A light source that supplies read light to the reflective display device, and S of the first primary color light of the light emitted from the light source.
A first dichroic polarization beam splitter that reflects a polarization component and transmits other light, and a second dichroic polarization beam splitter that reflects the S polarization component of the second primary color light of the light emitted from the light source and transmits other light. A dichroic polarizing beam splitter, and a third dichroic polarizing beam splitter that reflects the S-polarized component of the third primary color light of the light emitted from the light source and transmits the other light. A color display device in which incident angles of the S-polarized components of the first, second, and third primary color lights reflected by the second and third dichroic polarization beam splitters are different from each other with respect to the reflective display device. Is provided,

According to a third aspect of the present invention, there is provided "a first and a second reflective display device operating in a birefringence mode, and a unit for supplying read light to the first and second reflective display devices. One light source, a spectroscopic unit that separates the light emitted from the light source into three primary color lights of a first primary color light, a second primary color light, and a third primary color light, and each of the spectral components separated by the spectral unit. What is claimed is: 1. A two-plate type color display device comprising at least a polarization beam splitter for separating primary color light into S-polarized light component and P-polarized light component, wherein the two reflective display devices each include a first
A plurality of unit pixels each including a first color pixel that modulates the primary color light, a second color pixel that modulates the second primary color light, and a third color pixel that modulates the third primary color light, and each primary color At least a plurality of microlenses for selectively condensing light into corresponding color pixels are provided, and the spectroscopic means reflects the first primary color light in a first direction and reflects the second and third light. A first dichroic mirror that transmits primary color light, a second dichroic mirror that reflects the second primary color light in a second direction and transmits the third primary color light, and a third dichroic mirror that transmits the third primary color light A third dichroic mirror or a total reflection mirror that reflects in the third direction, and the polarization beam splitter includes the first primary color light reflected in the first direction by the first dichroic mirror and the second primary color light. Second primary color light reflected in the second direction by the dichroic mirror of The S-polarization component of the third primary color light reflected in the third direction by the third dichroic mirror or the total reflection mirror is reflected and guided to the first reflective display device, and the P-polarization component is emitted. A color display device configured to transmit the light and lead to the second reflective display device. Is provided,

According to a fourth aspect of the present invention, "the two reflective display devices have rows in which first color pixels, second color pixels, and third color pixels are sequentially arranged in a horizontal direction at a constant period. The pixel arrays are arranged in the same phase in the vertical direction.
4. The color display device according to claim 3, wherein the second reflection type display device is arranged so as to be equivalent to the reflection type display device in the horizontal direction by 0.5 times the fixed period. Is provided,

According to a fifth aspect of the present invention, "The two reflective display devices have an odd-numbered row in which first color pixels, second color pixels, and third color pixels are sequentially arranged in a horizontal direction at a constant cycle. When,
An even number in which the first color pixel, the second color pixel, and the third color pixel, which are arranged by being shifted in the horizontal direction by 0.5 times the constant period with respect to the odd-numbered row, are sequentially arranged in the horizontal direction in the constant period. And a pixel array composed of rows and each of the first reflection type display device and the second reflection type display device in the vertical direction 1
The color display device according to claim 3, wherein the color display devices are arranged so as to be equivalent to each other by a line. The invention according to claim 6 provides that "the two reflective display devices have a first color pixel, a second color pixel, and a third color pixel arranged in order in a horizontal direction at a constant period. And the first color pixel, the second color pixel, and the third color pixel, which are arranged by being shifted by 0.5 times the constant period in the horizontal direction with respect to the odd-numbered row, are sequentially arranged in the horizontal direction. The second reflective display device is equivalent to the first reflective display device in the horizontal direction 0.5 times the constant period, each pixel array having an even number of rows arranged in the fixed period. The color display device according to claim 3, wherein the color display devices are arranged so as to be offset from each other.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a diagram schematically showing a schematic configuration of the first embodiment of the present invention. The readout light emitted from the light source 7 is guided to the dichroic mirror 11 as a substantially parallel light flux from which heat rays are removed by the lens 14, the cold mirror 15, and the lens 16. Here, the dichroic mirror 11 reflects blue light and transmits green light and red light.
The green light and the red light transmitted through the dichroic mirror 11 are further separated by the dichroic mirror 12. That is, the dichroic mirror 12 reflects red light and transmits green light. Then, the green light transmitted through the dichroic mirror 12 is further reflected by the dichroic mirror 13.
Here, the dichroic mirror 13 may be a total reflection mirror having no wavelength dependence.

As described above, the light emitted from the light source 7 is
The dichroic mirrors 11, 12 and 13 respectively reflect and separate the light into the three primary colors. The reflecting surfaces of the dichroic mirrors are configured to be non-parallel to each other.
The primary color lights are incident on the polarization splitting surface 6a of the polarization beam splitter 6 at different angles (θ1, θ2, θ3). Therefore, the polarization beam splitter 6 reflects the S-polarized components of each primary color light at angles of θ1, θ2, and θ3 and makes them incident on the reflective display device 9.
Here, the polarization beam splitter 6 has characteristics as shown in FIG. 7 for the blue light incident at θ1, the red light incident at θ2, and the green light incident at θ3 as the characteristics of the polarization separation surface 6a. Has been granted. In the figure, curve B
p, Rp, and Gp are the transmittances of the P-polarized components of blue light, red light, and green light, respectively, and the curves Bs, Rs, and Gs are the transmittances of the S-polarized components of blue light, red light, and green light, respectively. Is.

The reflective display device 9 selectively collects each primary color light on the corresponding color pixel by utilizing the difference in the incident angle of each primary color light. The configuration of the reflective display device 9 will be described later. The primary color light condensed on each color pixel is modulated as a difference in polarization state, reflected by a dielectric mirror 9b described later, and enters the polarization beam splitter 6 again. Then, the polarization beam splitter 6 transmits only the P-polarized component of each modulated primary color light and guides it to the projection lens 8. The projection lens 8 forms and displays a color image on a screen (not shown).

Now, two types of configurations of the reflective display device 9 will be described with reference to FIG. 4 or FIG. 4A and 4B are diagrams schematically showing a first configuration example of the reflective display device 9. FIG. 4A is a partial sectional view of the reflective display device 9, and FIG. 4B is a pixel array thereof. FIG. As shown in FIG. 4A, in this configuration example, the dielectric mirror layer 9b and the liquid crystal layer 9c are provided between the pixel electrode 9a and the transparent electrode (ITO) 9d, and the transparent electrode 9d and each pixel electrode are provided. The liquid crystal layer is driven by the signal voltage applied between 9a and 9a. The pixel electrode 9a is composed of independent color pixel electrodes of a green pixel electrode 9aG, a red pixel electrode 9aR, and a blue pixel electrode 9aB, and three color pixel electrodes form a unit pixel. Here, FIG.
As shown in (B), the unit pixel electrodes are repeatedly arranged in the row direction (horizontal direction) and at the same phase in the column direction (vertical direction). The microlenses (lenticular lenses) 9e are formed in correspondence with the arrangement of the unit pixel electrodes in each column. That is, in the configuration example of this reflective display device, the primary color lights coming in at different angles θ1, θ2, and θ3 are selectively focused on the corresponding color pixel electrodes by the action of the lenticular lens 9e. .

Next, a second structural example of the reflective display device 9 will be described with reference to FIG. FIG. 6 is a diagram schematically showing a second configuration example of the reflective display device 9, FIG. 6A is a partial cross-sectional view of the reflective display device 9, and FIG. 6B is its pixel array. FIG. Figure 6
As shown in (A), in this configuration example, the dielectric mirror layer 9b and the liquid crystal layer 9c are provided between the pixel electrode 9a and the transparent electrode (ITO) 9d, and the transparent electrode 9d and each pixel electrode 9a are provided. The liquid crystal layer is driven by the signal voltage applied during the period. The pixel electrode 9a is the green pixel electrode 9a.
Each of G, red pixel electrode 9aR, and blue pixel electrode 9aB is composed of an independent color pixel electrode, and three color pixel electrodes form a unit pixel. These points are the same as in the case of the first configuration example described above.

In this configuration example, the pixels in the even-numbered rows and the pixels in the odd-numbered rows are arranged with a phase shift of 0.5 pixels in the repeating cycle of the unit pixel. That is, as shown in FIG. 6B, odd-numbered rows of blue pixel electrodes 9aB and green pixel electrodes 9aG
Red pixel electrodes 9aR in even rows are arranged in the middle position of
An even numbered blue pixel electrode 9aB is arranged at an intermediate position between the odd-numbered green pixel electrode 9aG and the red pixel electrode 9aR, and an even-numbered green pixel electrode 9aG is provided at an intermediate position between the odd-numbered red pixel electrode 9aR and the blue pixel electrode 9aB. Are arranged. The microlenses 9e for selectively collecting the primary color lights on the pixel electrodes of the respective colors are formed in a honeycomb shape with the red pixel electrodes 9aR of the respective rows as the center. As described above, according to the configuration of the first embodiment, each primary color light modulated by the reflective display device 9 is guided to the projection lens 8 without passing through the dichroic mirrors 11, 12, 13. Since it is projected, it is possible to display a high-contrast image without lowering the light utilization rate or phase shift of the dichroic mirrors 11, 12, and 13. In the first embodiment described here, the S-polarized component reflected by the polarization splitting surface 6a of the polarization beam splitter 6 is used for reading, but the reflective display is opposed to the emission surface of the P-polarized component. The device 9 may be arranged so that the P-polarized component is used for reading.

Next, a second embodiment of the present invention will be described with reference to FIGS. 3 and 5. FIG. 3 is a diagram schematically showing the schematic configuration of the second embodiment of the present invention. It should be noted that this embodiment is an example in which, in comparison with the first embodiment described above, a reflective display device 10 is provided in addition to the reflective display device 9 to form a two-plate color display device. The description of the same configuration as the first embodiment is omitted. In the present embodiment, the P-polarized light component transmitted through the polarization beam splitter 6 is made incident on the reflective display device 10 as read-out light, and the utilization efficiency of the light emitted from the light source 7 is increased. That is, the P-polarized light components of the primary color lights transmitted through the polarization beam splitter 6 have different incident angles θ1, θ2,
When incident on the reflective display device 10 at θ3, the reflective display device 10, like the reflective display device 9, utilizes the difference in the incident angle of each primary color light to selectively select each primary color light to the corresponding color pixel. Focus on. Then, the respective primary color lights condensed on the respective color pixels undergo modulation as a difference in polarization state, are reflected, and enter the polarization beam splitter 6 again. The polarization beam splitter 6 reflects the S-polarized component of each modulated primary color light and guides it to the projection lens 8.

When the reflection type display devices 9 and 10 having the structure shown in FIG. 4 described in the first embodiment are used, as shown in FIG. The pixels are arranged so as to be relatively offset from each other by 5 pixels in the horizontal direction. In FIG. 5, the solid line shows the lenticular lens and each pixel electrode of the reflective display device 9, and the broken line shows the lenticular lens and each pixel electrode of the reflective display device 10. As described above, by arranging the reflective display device 9 and the reflective display device 10 so as to be equivalently displaced in the horizontal direction, the horizontal resolution can be made equal to that of the single-panel color display device of the first embodiment described above. It can be effectively doubled in comparison. When the reflection type display devices 9 and 10 having the configuration shown in FIG. 6 described in the first embodiment are used, one reflection type display device is placed in the direction perpendicular to the other reflection type display device. Equivalently, the lines are shifted by one line. As a result, the horizontal repetition cycle of each color pixel is halved as compared with the single plate configuration, and the horizontal resolution can be effectively doubled. Furthermore, the reflective display device 9 having the configuration of FIG.
When 10 is used, the resolution in the horizontal direction can be effectively doubled even if the pitch is shifted by 0.5 times the unit pixel pitch in the horizontal direction.

As described above, according to the configuration of the second embodiment, the S-polarized component of each primary color light separated by the polarization beam splitter 6 is modulated by the reflective display device 9 and separated by the polarization beam splitter 6. Since the P-polarized light components of the respective primary color lights thus obtained are modulated by the reflection type display device 10 and guided to the projection lens 8, the light utilization rate by the dichroic mirrors 11, 12, 13 is the same as in the case of the first embodiment. Of the P-polarized light component, which was not available in the color display device described in the first embodiment, can be effectively used. It is possible to display an image having a brightness twice as high as that of.

Next, a third embodiment of the present invention will be described with reference to FIG. FIG. 8 is a diagram schematically showing the schematic configuration of the third embodiment of the present invention. In addition, in this embodiment, when compared with the first embodiment described above, the polarization beam splitter 6 in the first embodiment is omitted, and the dichroic mirrors 11, 12 and 13 have a function as a polarization beam splitter. It was provided by. That is, in this embodiment, the light emitted from the light source 7 is converted by the dichroic polarization beam splitter 21 that reflects blue light into its S
The polarized component is reflected, and the P-polarized component of the other band light and the blue light is transmitted. Then, of the light transmitted through the dichroic polarization beam splitter 21, only the S-polarized component of red light is reflected by the dichroic polarization beam splitter 22 that reflects red light, and then passes through the dichroic polarization beam splitter 21 described above. The remaining P-waves of blue light and red light and the green light are transmitted through the dichroic polarization beam splitter 22, the S-polarized component of the green light is reflected by the dichroic polarization beam splitter 23 that reflects the green light, and the dichroic polarization beam splitter 21, Go through 22 and proceed. The light fluxes of the primary color lights reflected and separated by the dichroic polarization beam splitters 21, 22 and 23 have different incident angles θ1, θ2.
The light travels toward the reflective display device 9 at θ3 (in the example shown in the figure, the incident angle θ2 of the green light coincides with the normal line of the device and θ2 = 0). Here, the reflective display device 9 is the same as that described in the first embodiment with reference to FIG. 4 or FIG.

Therefore, the light fluxes of the primary color lights are incident on the microlenses at different angles θ1, θ2, and θ3, and are selectively condensed on the corresponding color pixels. The light flux of each primary color thus modulated is reflected and polarized by the beam splitters 21 and 2.
It is reflected toward 2, 23 and only the respective P waves are extracted and the color image is projected on the screen by the projection lens 8. As described above, in this embodiment, since the polarization beam splitter and the dichroic mirror for color separation are configured by one member, the optical system can be configured compactly, and at the same time, the film can be designed for each primary color light. A color display device having a further improved ratio can be constructed.

[0021]

As described above, according to the invention of claim 1, each primary color light modulated by the reflection type display device is guided to the projection lens without passing through the dichroic mirror and projected. Therefore, it is possible to display a high-contrast image without lowering the light utilization rate or phase shift caused by the dichroic mirror.

According to the invention of claim 2, the polarization beam splitter and the dichroic mirror for color separation are constituted by one member, so that the optical system can be made compact, and at the same time, for each primary color light. Since the film can be designed, a color display device having an improved contrast ratio can be realized.

Furthermore, according to the invention of claim 3,
Since each primary color light modulated by the reflective display device is guided to the projection lens and projected without passing through the dichroic mirror, the dichroic mirror does not cause a decrease in light utilization rate or a phase shift, which is high. Not only can the contrast be obtained, but the P-polarized component, which could not be used in the conventional three-plate type color display device, can also be effectively used, and an image having a brightness twice that of the conventional color display device can be displayed. It is a thing. Further, according to the inventions of claims 4 to 5, by arranging the two reflective display devices so as to be offset from each other, the resolution in the horizontal direction can be effectively doubled.

[Brief description of drawings]

FIG. 1 is a diagram schematically showing a schematic configuration of an example of a color display device using a conventional reflective display device.

FIG. 2 is a diagram schematically showing a schematic configuration of a first embodiment of the present invention.

FIG. 3 is a diagram schematically showing a schematic configuration of a second embodiment of the present invention.

FIG. 4 is a diagram schematically showing a first configuration example of a reflective display device.

FIG. 5 is a diagram showing a relative positional relationship between two reflective display devices.

FIG. 6 is a diagram schematically showing a second configuration example of a reflective display device.

FIG. 7 is a diagram showing characteristics of a polarization beam splitter.

FIG. 8 is a diagram schematically showing a schematic configuration of a third embodiment of the present invention.

[Explanation of symbols]

 1 Reflective Display Device 2 Reflective Display Device 3 Reflective Display Device 4 Dichroic Mirror 5 Dichroic Mirror 6 Polarizing Beam Splitter 7 Light Source 8 Projection Lens 9 Reflective Display Device 9a Pixel Electrode 9aR Red Pixel Electrode 9aG Green Pixel Electrode 9aB Blue Pixel Electrode 9b Dielectric mirror layer 9c Liquid crystal layer 9d Transparent electrode 9e Microlens 10 Reflective display device 11 Dichroic mirror 12 Dichroic mirror 13 Dichroic mirror 14 Lens 15 Cold mirror 16 Lens

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ryusaku Takahashi 3-12 Moriya-cho, Kanagawa-ku, Yokohama, Kanagawa Japan Victor Company of Japan, Ltd.

Claims (6)

[Claims] 1. A reflective display device that operates in a birefringence mode, a light source that supplies readout light to the reflective display device, and light emitted from the light source is a first primary color light and a second primary color light. A spectroscopic unit for separating the primary color light and the third primary color light into three primary color lights, and each of the primary color lights dispersed by the spectroscopic unit is divided into an S-polarized component and a P-polarized component.
A single-panel color display device comprising at least a polarization beam splitter for splitting into a polarization component, wherein the reflection-type display device comprises a first primary color light modulating device.
Second color pixel that modulates the second primary color light and the third color pixel
A plurality of unit pixels each including a third color pixel that modulates the primary color light and a plurality of microlenses that selectively focus each primary color light on the corresponding color pixel. A first dichroic mirror that reflects the first primary color light in a first direction and transmits the second and third primary color light; and a second dichroic mirror that reflects the second primary color light in a second direction. The second dichroic mirror that transmits the three primary color lights, and the third dichroic mirror or the total reflection mirror that reflects the third primary color lights in the third direction, wherein the polarization beam splitter includes the first dichroic mirror. First primary color light reflected by the dichroic mirror in the first direction and the second primary color light reflected by the second dichroic mirror in the second direction and the third dichroic mirror or the whole The reflection mirror reverses the third direction. The third, which is
2. A color display device configured to guide one of the S-polarized component and the P-polarized component of the primary color light to the reflective display device. 2. A plurality of a first color pixel for modulating a first primary color light, a second color pixel for modulating a second primary color light, and a third color pixel for modulating a third primary color light. Of the unit pixel and a plurality of microlenses for selectively condensing each primary color light into the corresponding pixels of each color, the reflective display device operating in a birefringence mode, and the reflective display device. A light source that supplies read-out light, a first dichroic polarization beam splitter that reflects the S-polarized component of the first primary color light of the light emitted from the light source, and transmits the other light, and a light source that is emitted from the light source. A second dichroic polarization beam splitter that reflects the S-polarized component of the second primary color light of the emitted light and transmits the other light; and an S-polarized light of the third primary color light of the light emitted from the light source. To reflect the component and transmit other light 3 dichroic polarization beam splitters are provided, and S of the first, second and third primary color lights reflected by the first, second and third dichroic polarization beam splitters are provided.
A color display device in which incident angles of polarized components with respect to the reflective display device are different from each other. 3. A first and second reflective display device operating in a birefringence mode, a single light source for supplying read light to the first and second reflective display devices, and the light source. The light emitted from the light source is separated into three primary color lights, that is, a first primary color light, a second primary color light, and a third primary color light, and each primary color light split by the spectral means is an S-polarized component. P
A two-plate type color display device comprising at least a polarization beam splitter for separating into a polarization component, wherein the two reflection type display devices respectively include a first color pixel and a first color pixel for modulating a first primary color light. The second that modulates the two primary color lights
A plurality of unit pixels each including a color pixel and a third color pixel that modulates the third primary color light, and a plurality of microlenses that selectively focus each primary color light on the corresponding color pixel. The spectroscopic means reflects the first primary color light in a first direction and transmits the second and third primary color lights, and the second primary color light into a second dichroic mirror. And a third dichroic mirror for reflecting the third primary color light and transmitting the third primary color light, and a third dichroic mirror or a total reflection mirror for reflecting the third primary color light in the third direction. The splitter includes a first primary color light reflected by the first dichroic mirror in the first direction, a second primary color light reflected by the second dichroic mirror in the second direction, and the third primary color light. The dichroic mirror or the total reflection mirror 3 third reflected in the direction of
Of the primary color light is reflected and guided to the first reflective display device, and the P polarized component is transmitted to each of the second reflective display devices to be guided to the second reflective display device. 4. The two reflective display devices are arranged such that rows in which first color pixels, second color pixels and third color pixels are sequentially arranged in a horizontal direction at a constant period are arranged in the same phase in a vertical direction. And the second reflective display device is arranged in a horizontal direction equivalent to the first reflective display device by 0.5 times the fixed period. The color display device according to claim 3. 5. The two reflective display devices include an odd row in which a first color pixel, a second color pixel, and a third color pixel are sequentially arranged in a horizontal direction at a constant cycle, and an odd row for the odd row. A pixel consisting of an even row in which the first color pixel, the second color pixel, and the third color pixel are arranged in the horizontal direction by 0.5 times the constant cycle and are arranged in the horizontal direction in order. 4. The color display according to claim 3, wherein each of the first and second reflective display devices has an array, and the second reflective display device is equivalently shifted vertically by one row. apparatus. 6. The two reflective display devices include an odd row in which first color pixels, second color pixels, and third color pixels are sequentially arranged at a constant cycle in the horizontal direction, and an odd row for the odd rows. A pixel consisting of an even row in which the first color pixel, the second color pixel, and the third color pixel are arranged in the horizontal direction by 0.5 times the constant cycle and are arranged in the horizontal direction in order. 7. Each array is provided, and the second reflective display device is equivalently displaced 0.5 times the fixed period in the horizontal direction with respect to the first reflective display device, and arranged. 3. The color display device according to item 3.