JP6969198B2 - LCD panels, projectors and electronics - Google Patents

Description

The present invention relates to liquid crystal panels, projectors and electronic devices.

A liquid crystal light modulator is used as a light bulb or the like of a projector (see, for example, Patent Document 1). In the liquid crystal panel included in the liquid crystal light modulator, a plurality of pixel electrodes are arranged in the horizontal direction and the vertical direction. A predetermined voltage is applied to each pixel electrode based on the image signal.

Japanese Unexamined Patent Publication No. 2010-197438

In a liquid crystal panel, a transverse electric field is generated due to the application of different voltages between the pixel electrodes arranged in the horizontal or vertical direction. Due to the lateral electric field, a region such as a reverse tilt domain in which the liquid crystal orientation is disturbed may occur, which may deteriorate the display quality.

The present invention has been made in view of the above circumstances, and one of the problems to be solved is to provide a technique capable of suppressing the generation of a region in a liquid crystal panel in which the liquid crystal orientation is disturbed due to a transverse electric field. do.

In order to solve the above problems, one aspect of the liquid crystal panel according to the present invention is a first-type pixel region and a second-type pixel region intersecting the first direction, respectively. Alternately arranged display areas, pixel electrodes provided corresponding to the first type pixel area, and electrodes provided corresponding to the second type pixel area and having a smaller area than the pixel electrodes. And, in the display area, a first opening provided corresponding to the first type pixel area and a first opening corresponding to the second type pixel area are provided, and the area is larger than that of the first opening. It has a light-shielding film including a small second aperture, a microlens array, and the optical axis of the lens of the microlens array intersects the pixel region of the first type and the pixel of the second type. It does not intersect the area.

According to the above aspect, since the light-shielding film having an opening in the pixel region of the first type and the light-shielding film having an opening in the pixel area of the second type is provided, the temperature of the liquid crystal panel rises due to the absorption of light by the light-shielding film. Can be suppressed.

Further, according to the above aspect, since the opening provided in the second type pixel region is smaller than the opening provided in the first type pixel region, it is provided in the second type pixel region. Light leakage through the opened opening is suppressed.

Further, according to the above aspect, since the second type pixel region is provided with an electrode smaller than the pixel electrode provided in the first type pixel region, it is provided in the second type pixel region. It is possible to control the liquid crystal orientation in the second type pixel region while suppressing the transverse electric field between the electrode and the pixel electrode.

Further, according to the above aspect, the microlens array is provided, and the optical axis of the lens of the microlens array intersects the pixel region of the first type and does not intersect the pixel region of the second type. According to this aspect, it is possible to condense light on the first type pixel region and suppress the condensing on the second type pixel region.

In one aspect of the liquid crystal panel described above, the pitch of the pixel electrodes in the first direction and the pitch of the pixel electrodes in the second direction are equivalent. The pitch of the pixel electrodes and the pitch of the pixel electrodes in the arrangement of the pixel regions arranged in the second direction are equivalent. According to this aspect, it is possible to suppress the variation between the display quality in the first direction and the display quality in the second direction.

In one aspect of the liquid crystal panel described above, at least one of the switching element and the storage capacity is provided in the region of the second type pixel region covered with the light-shielding film. According to this aspect, at least one of the switching element and the storage capacity can be formed by effectively utilizing the light-shielding region in the second type pixel region.

In order to solve the above problems, in one aspect of the projector according to the present invention, the first type pixel region and the second type pixel region alternate between the first direction and the second direction where the first type intersects the first direction, respectively. A display area arranged in, a pixel electrode provided corresponding to the first type pixel area, and an electrode provided corresponding to the second type pixel area and having a smaller area than the pixel electrode. The display area is provided with a first opening corresponding to the first type pixel area and a first opening corresponding to the second type pixel area, and has a smaller area than the first opening. A liquid crystal panel having a light-shielding film including a second opening, an optical system for projecting light emitted from the liquid crystal panel, and a projection surface on which the second type pixel region is projected in the first period. The first type of pixel area is projected on the upper position in the second period, and the second period is projected on the projection surface on which the first type pixel area is projected in the first period. It has an optical path shift device that shifts the optical path of the light emitted from the liquid crystal panel so that the second type pixel region is projected.

According to the above aspect, it is possible to complement the display of the image in the second type pixel region on the liquid crystal panel and display the image.

In order to solve the above problems, in one aspect of the projector according to the present invention, the first type pixel region and the second type pixel region alternate between the first direction and the second direction where the first type intersects the first direction. A display area arranged in, a pixel electrode provided corresponding to the first type pixel area, and an electrode provided corresponding to the second type pixel area and having a smaller area than the pixel electrode. The display area is provided with a first opening corresponding to the first type pixel area and a first opening corresponding to the second type pixel area, and has a smaller area than the first opening. A first liquid crystal panel and a second liquid crystal panel having a light-shielding film including a second opening, and a projection surface on which the second type pixel region of the first liquid crystal panel is projected. On the projection surface on which the first-class pixel region of the second liquid crystal panel is superimposed and projected, and the first-class pixel region of the first liquid crystal panel is projected. The light emitted from the first liquid crystal panel and the light emitted from the second liquid crystal panel so that the second type pixel region of the second liquid crystal panel is superimposed and projected at the position. It has an optical system that projects and.

According to the above aspect, the display of the image in the second type pixel region in the first liquid crystal panel and the second liquid crystal panel can be complemented with each other to display the image.

In order to solve the above problems, one aspect of the electronic device according to the present invention includes the above-mentioned liquid crystal panel.

According to the above aspect, when the electronic device includes the above-mentioned liquid crystal panel, it is possible to suppress a region in the liquid crystal panel in which the liquid crystal orientation is disturbed due to a transverse electric field.

It is a schematic diagram which shows the optical system of the projector by 1st Embodiment. It is a schematic plan view which shows the arrangement of the pixel area in the liquid crystal panel of an embodiment. It is a schematic plan view which shows the arrangement of the scanning line and the data line in the liquid crystal panel of an embodiment. It is a schematic plan view which shows the arrangement of the scanning line and the data line in the liquid crystal panel of an embodiment. It is a schematic plan view which shows the arrangement of the TFT and the storage capacity in the liquid crystal panel of an embodiment. It is a schematic plan view which shows the arrangement of MLA in the liquid crystal panel of an embodiment. It is a block diagram which shows the control device, the liquid crystal panel and the optical path shift element of 1st Embodiment. It is a schematic plan view which shows the display area of the liquid crystal panel projected on the projection surface in 1st Embodiment or 2nd Embodiment. It is a schematic diagram which shows the optical system of the projector by 2nd Embodiment. It is a block diagram which shows the control device and the liquid crystal panel of 2nd Embodiment. It is a schematic plan view of the liquid crystal panel by the 1st modification. It is a schematic plan view of the liquid crystal panel by the 2nd modification. It is a schematic plan view of the liquid crystal panel by the 3rd modification.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings and the like. However, in each figure, the dimensions and scale of each part are appropriately different from the actual ones. Further, since the embodiments described below are suitable specific examples of the present invention, various technically preferable limitations are attached, but the scope of the present invention particularly limits the present invention in the following description. Unless otherwise stated, it is not limited to these forms.

<First Embodiment>
The projection type liquid crystal display device (projector) 1 according to the first embodiment of the present invention will be described. FIG. 1 is a schematic diagram illustrating an optical system of the projector 1 according to the first embodiment. FIG. 1 shows, in addition to the optical system of the projector 1, a control device 200 for controlling the liquid crystal panels 100R, 100G, 100B and the optical path shift element 300.

The projector 1 according to the first embodiment includes a light source 10, an integrator 20, a polarization conversion element 30, a color separation light guide optical system 40, a liquid crystal light modulator for R light 50R, a liquid crystal light modulator for G light 50G, and It has a liquid crystal light modulator 50B for B light, a cross dichroic prism 60, an optical path shift element 300, a projection optical system 70, and a control device 200.

The light source 10 emits light including red light (hereinafter referred to as “R light”), green light (hereinafter referred to as “G light”), and blue light (hereinafter referred to as “B light”). As the light source 10, for example, an ultrahigh pressure mercury lamp is used.

The integrator 20 equalizes the illuminance distribution of the light emitted from the light source 10. The light emitted from the integrator 20 is converted into polarized light having a specific vibration direction, for example, s-polarized light, by the polarization conversion element 30.

The light emitted from the polarization conversion element 30 is incident on the R light transmitting dichroic mirror 41R of the color separation light guide optical system 40. The color separation light guide optical system 40 includes an R light transmission dichroic mirror 41R, a G light reflection dichroic mirror 41G, and three reflection mirrors 42a to 42c.

The R light transmission dichroic mirror 41R transmits R light and reflects G light and B light. The R light transmitted through the R light transmission dichroic mirror 41R is reflected by the reflection mirror 42a and incident on the liquid crystal light modulator 50R for R light (hereinafter, also simply referred to as “optical modulator 50R”). The optical modulation device 50R is a transmissive liquid crystal device that modulates R light according to an image signal. The optical modulation device 50R includes a λ / 2 retardation plate 53R, a first polarizing plate 51R, a liquid crystal panel 100R, and a second polarizing plate 52R.

In this example, the R light incident on the optical modulation device 50R is s-polarized light, and this s-polarized light is converted into p-polarized light by the λ / 2 retardation plate 53R. The R light converted into p-polarized light passes through the first polarizing plate 51R and is incident on the liquid crystal panel 100R. The liquid crystal panel 100R converts R light from p-polarized light to s-polarized light by modulation according to an image signal. The R light converted into s-polarized light by the modulation by the liquid crystal panel 100R is emitted from the second polarizing plate 52R and incident on the cross dichroic prism 60.

The G light and B light reflected by the R light transmitting dichroic mirror 41R are incident on the G light reflecting dichroic mirror 41G. The G light reflection dichroic mirror 41G reflects G light and transmits B light. The G light reflected by the G light reflection dichroic mirror 41G is incident on the G light liquid crystal light modulator 50G (hereinafter, also simply referred to as “optical modulator 50G”). The optical modulation device 50G is a transmissive liquid crystal device that modulates G light according to an image signal. The optical modulator 50G includes a first polarizing plate 51G, a liquid crystal panel 100G, and a second polarizing plate 52G.

In this example, the G light incident on the optical modulation device 50G is s-polarized light, and this s-polarized light passes through the first polarizing plate 51G and is incident on the liquid crystal panel 100G. The liquid crystal panel 100G converts G light from s-polarized light to p-polarized light by modulation according to an image signal. The G light converted into p-polarized light by the modulation of the liquid crystal panel 100G is emitted from the second polarizing plate 52G and incident on the cross dichroic prism 60.

The B light transmitted through the G light reflection dichroic mirror 41G is sequentially reflected by the two reflection mirrors 42b and 42c, and is incident on the liquid crystal light modulator 50B for B light (hereinafter, also simply referred to as “optical modulator 50B”). .. The optical modulation device 50B is a transmissive liquid crystal device that modulates B light according to an image signal. The optical modulation device 50B includes a λ / 2 retardation plate 53B, a first polarizing plate 51B, a liquid crystal panel 100B, and a second polarizing plate 52B.

In this example, the B light incident on the optical modulation device 50B is s-polarized light, and this s-polarized light is converted into p-polarized light by the λ / 2 retardation plate 53B. The B light converted into p-polarized light passes through the first polarizing plate 51B and is incident on the liquid crystal panel 100B. The liquid crystal panel 100B converts B light from p-polarized light to s-polarized light by modulation according to an image signal. The B light converted into s-polarized light by the modulation by the liquid crystal panel 100B is emitted from the second polarizing plate 52B and incident on the cross dichroic prism 60.

In this way, the color-separated light guide optical system 40 separates the light emitted from the light source 10 into R light, G light, and B light, and separates the separated R light, G light, and B light, respectively. The light is incident on the light modulation device 50R, the light modulation device 50G, and the light modulation device 50B.

The optical modulator 50R, the optical modulator 50G, and the optical modulator 50B modulate and modulate R light, G light, and B light by the liquid crystal panel 100R, the liquid crystal panel 100G, and the liquid crystal panel 100B, respectively, according to the image signal. The R light, G light and B light are supplied to the cross dichroic prism 60. As will be described in detail later, the control device 200 controls the liquid crystal panel 100R, the liquid crystal panel 100G, and the liquid crystal panel 100B.

The cross dichroic prism 60 is composed of a dichroic film 61a and a dichroic film 61b arranged orthogonally to each other. The dichroic film 61a reflects B light and transmits G light. The dichroic film 61b reflects R light and transmits G light. As a result, the G light incident from the optical modulator 50G and transmitted through the cross dichroic prism 60, and the R light and B light incident from the optical modulator 50R and the optical modulator 50B and reflected by the cross dichroic prism 60, respectively. Is synthesized and emitted from the cross dichroic prism 60. As described above, the cross dichroic prism 60 functions as a color synthesis optical system.

The light emitted from the cross dichroic prism 60 is incident on the optical path shift element 300. The optical path shift element 300 shifts (shifts or changes) the optical path of the light incident on the optical path shift element 300 by a predetermined amount. As will be described in detail later, the control device 200 controls the optical path shift element 300.

The optical path shift element 300 has an optical path adjusting unit that shifts the optical path of incident light, and a driving unit that switches between a state in which the optical path is shifted and a state in which the optical path is not shifted by the optical path adjusting unit. For example, the optical path adjusting unit includes a 1/2 wave plate, a polarizing angle rotating element, and a birefringence element, and the driving unit drives the polarizing angle rotating element to change the shift amount. Switch between the shifted state and the non-shifted state of the optical path. The drive unit of the optical path shift element 300 is controlled by the control device 200.

The light emitted from the optical path shift element 300 is projected onto the projection surface (screen) 90 by the projection optical system 70. As described above, the light synthesized by the cross dichroic prism 60 is projected onto the projection surface 90 via the optical path shift element 300, so that a full-color image can be obtained on the projection surface 90.

As the liquid crystal panel 100R of the optical modulation device 50R, the liquid crystal panel 100G of the optical modulation device 50G, and the liquid crystal panel 100B of the optical modulation device 50B, a liquid crystal panel 100 having a common structure can be used.

Hereinafter, the liquid crystal panel 100 according to the present embodiment will be described with reference to FIGS. 2 to 8. The liquid crystal panel 100 includes an element substrate, a facing substrate, and a liquid crystal layer sandwiched between the element substrate and the facing substrate. The element substrate includes a pixel electrode 121, a thin film transistor (TFT) 160, a scanning line 141, a data line 142, and a storage capacity 161. The facing substrate includes a light-shielding film 150, a microlens array (MLA) 170, and a common electrode. The liquid crystal layer is formed of a liquid crystal having negative or positive dielectric anisotropy, and the liquid crystal panel 100 uses, for example, a normally black mode using a VA (Vertical Alignment) liquid crystal or a TN (Twisted Nematic) liquid crystal. Operates in normally white mode.

FIG. 2 is a schematic plan view illustrating the arrangement of the pixel regions 110 in the liquid crystal panel 100. Here, the plan view means, for example, viewing the liquid crystal panel 100 with a line of sight perpendicular to the surface of the pixel electrode 121 (the surface facing the liquid crystal layer). The direction perpendicular to the surface of the pixel electrode 121 may be referred to as the thickness direction.

The liquid crystal panel 100 has pixel regions (pixels) 110 arranged in a matrix in the X direction (horizontal direction, first direction) and the Y direction (vertical direction, second direction intersecting the first direction). Have. The display area 101 is configured by such an arrangement of the pixel areas 110. The arrangement of the pixel areas 110 arranged in the X direction may be referred to as a "row", and the arrangement of the pixel areas 110 arranged in the Y direction may be referred to as a "column". FIG. 2 illustrates an array portion of a pixel area 110 having 4 rows and 4 columns. In FIG. 2, the boundary between the pixel regions 110 is shown by a two-dot chain line.

The arranged pixel region 110 includes a first-class pixel region 111 (hereinafter, also simply referred to as “pixel region 111”) and a second-class pixel region 112 (hereinafter, also simply referred to as “pixel region 112”). The pixel region 111 is a region provided with a pixel electrode 121 to which a voltage based on the image signal is applied (between the common electrode and the common electrode) and displays gradation based on the image signal. That is, the pixel area 111 is an area for displaying an image (hereinafter, also simply referred to as “image”) based on the image signal. In FIG. 2, the edge of the pixel electrode 121 is shown by a broken line.

The pixel area 112 is an area that displays a gradation (brightness) of a predetermined light transmittance or less when an image is displayed in the pixel area 111. The pixel area 112 may be an area that constantly displays black. Hereinafter, the light transmittance is simply referred to as "transmittance". Here, the predetermined transmittance refers to the transmittance for one pixel when the light transmitted through the pixel region 111 is dimmed by the pixel electrode 121 so as to be substantially maximum, and is equal to or less than the predetermined transmittance. Means that it is equal to or less than the transmittance of the pixel area 111 in such a case. In this embodiment, the pixel region 112 is not provided with a pixel electrode and an opening. On the other hand, as in the modification described later, the pixel region 112 may be provided with a pixel electrode and an opening. When the pixel region 112 is not provided with the pixel electrodes and openings, the transmittance corresponding to the gradation displayed in the pixel region 112 is lower than the transmittance when the pixel region 111 is displayed in black. On the other hand, when the pixel region 112 is provided with the pixel electrodes and openings, the transmittance corresponding to the gradation displayed in the pixel region 112 may be equal to or less than the transmittance of the pixel region 111 as described above.

The pixel area 111 and the pixel area 112 are arranged in a checkered pattern. In other words, in the liquid crystal panel 100, the pixel areas 111 and the pixel areas 112 are alternately arranged in the row of the pixel area 110, and the pixel areas 111 and the pixel areas 112 are alternately arranged in the columns of the pixel area 110. Have been placed.

The light-shielding film 150 covers the entire area of the pixel area 112. As a result, the pixel area 112 becomes a light-shielding area through which light does not pass, and is always a black display area. On the other hand, the light-shielding film 150 has an opening 131 in the pixel region 111. The inner region of the opening 131 is a translucent region in which the light-shielding film 150 is not arranged and light is transmitted, and is a region in which an image is displayed with a gradation corresponding to the voltage applied to the pixel electrode 121. In FIG. 2, the light-shielding film 150 is shown with hatching rising to the right, and the inner region of the opening 131 is shown in white. The pixel electrode 121 is arranged so as to be included in the pixel region 111, and the opening 131 is arranged so as to be included in the pixel electrode 121.

Since the pixel area 111 and the pixel area 112 are arranged in a checkered pattern, the pixel areas 110 adjacent to both sides in the X direction and both sides in the Y direction with respect to the pixel area 111 are both pixel areas 111. Instead, it becomes the pixel area 112. The pixel region 112 is not provided with a pixel electrode. Therefore, in the liquid crystal panel 100 of the present embodiment, the pixel electrodes 121 are not adjacent to each other between the adjacent pixel regions 110, and it becomes easy to separate the pixel electrodes 121 from each other. As a result, the lateral electric field between the pixel electrodes 121 can be reduced, and the region where the liquid crystal orientation is disturbed, such as the reverse tilt domain generated by the transverse electric field, can be suppressed.

However, the image based on the image signal in the display area 101 is displayed only in the pixel area 111 arranged in a checkered pattern. Therefore, in the present embodiment, as will be described in detail later, the position where the pixel region 111 is projected on the projection surface 90 is overlapped with the region where the pixel region 112 is projected by using the optical path shift device 310. By moving and complementing the display of the image in the pixel area 112, it is possible to display the entire image.

It is preferable that the pitch PTx in the X direction of the pixel electrode 121 in the row of the pixel region 110 and the pitch PTy in the Y direction of the pixel electrode 121 in the column of the pixel region 110 are equivalent. Since the pitch PTx and the pitch PTy are equivalent, it is possible to suppress the variation between the display quality in the X direction and the display quality in the Y direction. Here, "the pitch PTx and the pitch PTy are equivalent" means, for example, that the ratio of the pitch PTy to the pitch PTx is in the range of 0.9 or more and 1.1 or less, or the pitch PTx with respect to the pitch PTy. It means that the ratio is in the range of 0.9 or more and 1.1 or less.

In the row of the pixel area 110, the pixel area 111, that is, the pixel electrode 121 is arranged every other pixel area 110. Therefore, the pitch PTx in the X direction of the pixel electrode 121 has a pixel pitch of 2 pixels. Similarly, the pitch PTy in the Y direction of the pixel electrode 121 has a pixel pitch of 2 pixels.

3 and 4 are schematic plan views showing an arrangement example of scanning lines 141 and data lines 142 in the liquid crystal panel 100. FIG. 3 shows a first arrangement example, and FIG. 4 shows a second arrangement example.

In the liquid crystal panel 100, a TFT 160 (switching element) is provided corresponding to each pixel region 111 (see FIG. 5). In each TFT 160, the gate electrode is electrically connected to the scanning line 141, the source electrode is electrically connected to the data line 142, and the drain electrode is electrically connected to the pixel electrode 121.

When the scanning signal is supplied from the scanning line 141 to the gate electrode of the TFT 160, the TFT 160 is turned on. The data signal generated based on the image signal is supplied from the data line 142 to the source electrode while the TFT 160 is on, so that the data signal is written to the pixel electrode 121 via the drain electrode. That is, a voltage based on the image signal is applied to the pixel electrode 121. The written data signal is a liquid crystal capacity formed between the pixel electrode 121 and the common electrode, and is held for a predetermined period of time. In order to suppress leakage of the written data signal, a storage capacity 161 is provided electrically in parallel with the liquid crystal capacity for each pixel region 111 (see FIG. 5).

The scanning line 141 is provided extending in the X direction on the boundary between adjacent rows of the pixel area 110. The data line 142 is provided extending in the Y direction on the boundary between adjacent columns of the pixel area 110. The scanning lines 141 and the data lines 142 used for writing to the pixel electrodes 121 in each pixel region 111 are indicated by arrows. For convenience of the following description, the scanning lines 141 and data lines 142 used for writing to the pixel electrodes 121 in each pixel region 111 may be referred to as scanning lines 141 and data lines 142 connected to the pixel region 111.

As shown in FIG. 3, in the first arrangement example, one scanning line 141 is provided for every two rows of the pixel area 110, and one data line 142 is provided for each column of the pixel area 110. There is. The pixel area 111 included in the pixel areas 110 for two lines arranged vertically in the Y direction with one scanning line 141 interposed therebetween is commonly connected to the scanning line 141.

Since the pixel area 111 and the pixel area 112 are arranged in a checkered pattern, the pixels included in the upper row in the pixel area 110 for two rows arranged vertically in the Y direction with one scanning line 141 interposed therebetween. The positions of the region 111 and the pixel region 111 included in the lower row are staggered in the X direction. As a result, only one pixel area 111 is connected to one scanning line 141 at each position in the X direction, and writing to the pixel area 111 included in the pixel area 110 for two lines is performed by one scanning line. It can be done using 141.

As shown in FIG. 4, in the second arrangement example, one scanning line 141 is provided for each row of the pixel area 110, and one data line 142 is provided for every two columns of the pixel area 110. There is. The pixel area 111 included in the pixel areas 110 for two rows arranged on the left and right in the X direction with one data line 142 interposed therebetween is commonly connected to the data line 142.

Since the pixel area 111 and the pixel area 112 are arranged in a checkered pattern, the pixels included in the left row in the pixel area 110 for two columns arranged on the left and right in the X direction with one data line 142 interposed therebetween. The positions of the area 111 and the pixel area 111 included in the right row are staggered in the Y direction. As a result, only one pixel area 111 is connected to one data line 142 at each position in the Y direction, and writing to the pixel area 111 included in the pixel area 110 for two columns is performed by one data line. It can be done using 142.

For example, if it is assumed that the entire pixel area 110 of the liquid crystal panel 100 displays an image based on an image signal and a resolution of 4K2K can be obtained, the liquid crystal panel 100 of the first arrangement example is a 4K2K liquid crystal panel. On the other hand, the number of scanning lines 141 is halved, that is, the driving pixels are halved, resulting in a 4K1K liquid crystal panel. Further, the liquid crystal panel 100 of the second arrangement example is a 2K2K liquid crystal panel in which the number of data lines 142 is halved compared to the 4K2K liquid crystal panel, that is, the drive pixels are halved. Therefore, in each of the first arrangement example and the second arrangement example, the drive load is reduced as compared with the case of 4K2K, and the liquid crystal panel 100 can be easily driven by one chip-on-film (COF) substrate. Become. As mentioned above, and as will be described in detail later, the overall image is displayed by complementing the display of the image in the pixel region 112.

FIG. 5 is a schematic plan view showing an arrangement example of the TFT 160 and the storage capacity 161 in the liquid crystal panel 100. The pixel region 112 is a region covered with a light-shielding film 150 and is not used for displaying an image based on an image signal. Therefore, in the present embodiment, the TFT 160 and the storage capacity 161 (at least one of them) provided corresponding to each pixel area 111 are extended to the pixel area 112 adjacent to the pixel area 111 (expanding to the pixel area 112 to the pixel area 112). (To have an overlap with). In the example shown in FIG. 5, the TFT 160 and the storage capacity 161 provided corresponding to each pixel area 111 are arranged by using the pixel area 112 arranged on the lower side in the Y direction of the pixel area 111.

In this way, at least one of the TFT 160 and the storage capacity 161 can be provided by effectively utilizing the light-shielding region covered with the light-shielding film 150 in the pixel region 112. By effectively utilizing the light-shielding region of the pixel region 112 and increasing the size of the TFT 160 and the storage capacity 161 it is possible to improve the drive capacity of the TFT 160 and the capacity of the storage capacity 161.

FIG. 6 is a schematic plan view showing an arrangement example of the MLA 170 in the liquid crystal panel 100. The MLA 170 is arranged on the light incident side in the thickness direction with respect to the opening 131 of the pixel region 111.

The pixel area 111 is an area for displaying an image by transmitting light through the opening 131. The pixel area 112 is an area for displaying black, and light incident on the pixel area 112 does not pass through the pixel area 112. Further, the light incident on the pixel region 112 is absorbed by the light-shielding film 150 and becomes heat, which causes the temperature of the liquid crystal panel 100 to rise. Therefore, it is preferable that the MLA 170 concentrates on the pixel region 111 and suppresses the light on the pixel region 112.

Therefore, the lens 171 constituting the MLA 170 is provided so that the optical axis of the lens 171 intersects the pixel region 111 and does not intersect the pixel region 112. The lens surface of the lens 171 extends to the pixel region 112 so that the light radiated on the pixel region 112 on the light incident side of the MLA 170 can be focused on the pixel region 111 (with the pixel region 112). It should be formed (overlapping). FIG. 6 shows an image of the lens 171 by a circle centered on the optical axis of the lens 171.

As described above, in the MLA 170 according to the present embodiment, the lenses 171 are formed for each pixel region 111 and are arranged in a checkered pattern (in relation to the pixel region 112). Further, the pixel regions 110 are arranged in a square matrix with a pixel pitch of 1 in the X and Y directions, whereas the lens 171 is arranged in a square matrix with a pixel pitch of √2 times in the diagonal direction. , Can also be said. Compared with MLA in which lenses are formed for each pixel region 110, that is, MLA in which lenses are arranged in a square matrix at a pixel pitch, the MLA 170 according to the present embodiment has a fine structure pitch formed by MLA of √2. It is twice as wide. Therefore, the MLA 170 according to the present embodiment is also preferable from the viewpoint of suppressing the diffraction of the incident light due to the MLA.

Next, the control device 200 will be described. FIG. 7 is an example of a block diagram showing a control device 200, liquid crystal panels 100R to 100B, and an optical path shift element 300. The control device 200 includes an image signal processing unit 210 and a timing control unit 220. The image signal processing unit 210 has a frame memory 211.

The image signal VID is input to the image signal processing unit 210 of the control device 200. The image signal processing unit 210 stores the image signal VID in the frame memory 211 for each frame of each color (R, G, B).

Here, when an image based on an image signal is displayed in all the pixel areas 110 of each liquid crystal panel 100R to 100B, that is, in both the pixel area 111 and the pixel area 112, the position of the pixel area 111 is reached. The portion of the displayed image is referred to as "image P111", and the portion of the image displayed at the position of the pixel area 112 is referred to as "image P112". Further, the period obtained by dividing the one-frame period into two equal parts is referred to as a "first field period" and a "second field period".

The image signal processing unit 210 receives a data signal of the image P111 of the frame from the frame memory 211 so that the image P111 is displayed in the pixel area 111 of each liquid crystal panel 100R to 100B in the first field period (first period). (Dr, Dg and Db) are read out and supplied to the liquid crystal panels 100R to 100B.

Further, in the second field period (second period), the image signal processing unit 210 receives the image P112 of the frame from the frame memory 211 so that the image P112 is displayed in the pixel area 111 of each liquid crystal panel 100R to 100B. The data signals (Dr, Dg and Db) are read out and supplied to the liquid crystal panels 100R to 100B.

The timing control unit 220 generates a clock signal or the like for supplying data signals (Dr, Dg and Db) to the liquid crystal panels 100R to 100B, and supplies the data signals to the data line drive circuit of the liquid crystal panels 100R to 100B.

Further, the timing control unit 220 supplies a control signal Ctrl to the drive unit of the optical path shift element 300 based on the image signal VID, and controls the timing at which the optical path shift element 300 shifts the optical path. The optical path shift element 300 and the control device 200 constitute an optical path shift device 310.

The display mode of the image in the first embodiment will be exemplified with reference to FIG. FIG. 8 is a schematic plan view illustrating a display area 101 of the liquid crystal panel 100 projected on the projection surface 90 in a certain frame.

The display area 101a, the opening 131a, the pixel area 111a, and the pixel area 112a are on the projection surface 90 on which the display area 101, the opening 131, the pixel area 111, and the pixel area 112 are projected, respectively, during the first field period of the frame. It is an area. The opening 131a is shown by a broken line.

The display area 101b, the opening 131b, the pixel area 111b, and the pixel area 112b are on the projection surface 90 on which the display area 101, the opening 131, the pixel area 111, and the pixel area 112 are projected, respectively, during the second field period of the frame. It is an area. The opening 131b is shown by a thick solid line.

In the first field period, the image P111 is displayed in the pixel area 111a, and the pixel area 112a is displayed in black. On the other hand, in the second field period, the image P112 is displayed in the pixel area 111b, and the pixel area 112b is displayed in black.

The optical path shift device 310 arranges the pixel region 111b on the pixel region 112a in the second field period, and arranges the pixel region 112b on the pixel region 111a in the second field period. Shifts the optical path of the light emitted from. In the example shown in FIG. 8, the shift of one pixel pitch is performed on the right side in the X direction.

Due to such an optical path shift, the pixel region 111b is arranged on the pixel region 112a that is displayed in black during the first field period, and the image P112 is displayed in the pixel region 111b. Then, in the first field period, the pixel area 111a is arranged on the pixel area 112b displayed in black during the second field period, and the image P111 is displayed in the pixel area 111a.

As described above, the image P111 is displayed during the first field period, and the optical path is shifted as described above, and the image P112 is displayed during the second field period, whereby the image is displayed in the pixel region 112. Can be complemented. In this way, an overall image in which the image P111 and the image P112 are combined with respect to the frame can be obtained by utilizing the afterimage phenomenon of the eyes.

Here, in order to avoid complication of explanation, a display mode for one liquid crystal panel 100 is typically illustrated, but the liquid crystal panels 100R, 100G, and 100B displaying each color are displayed in the same manner. Will be done. This makes it possible to obtain a full-color overall image on the projection surface 90.

As the direction and amount of the shift of the optical path, the shift of one pixel pitch is exemplified on the right side in the X direction, but the direction and amount of the shift of the optical path is an overall image in which the image P111 and the image P112 are combined. It may be selected so that it can be obtained in. For example, the shift direction may be the left side in the X direction, or the upper side or the lower side in the Y direction, if necessary. Further, for example, the amount of shift is not necessarily required to be one pixel pitch, and may be an odd number of pixel pitches, that is, 2n-1 (n is an integer of 1 or more) pixel pitch.

The present invention is not limited to the above-described embodiment, and can be applied to other embodiments as described below and various modifications can be made. In addition, the other embodiments and modifications described below may be appropriately combined with one or more arbitrarily selected embodiments.

<Second Embodiment>
Next, the projector 1 according to the second embodiment will be described. Also in the projector 1 of the second embodiment, the liquid crystal panel 100 in which the pixel area 111 and the pixel area 112 are arranged in a checkered pattern is used as in the first embodiment. In order to complement the display of the image in the pixel area 112, in the first embodiment, the optical path shift device 310 is used to move the area where the pixel area 111 is projected so as to overlap the area where the pixel area 112 is projected. I let you. On the other hand, in the second embodiment, the display of the image in the pixel region 112 is complemented in the manner described below.

FIG. 9 is a schematic diagram illustrating an optical system of the projector 1 according to the second embodiment. FIG. 9 shows, in addition to the optical system of the projector 1, a control device 200 that controls the liquid crystal panels 100Ra, 100Ga, 100Ba, and the liquid crystal panels 100Rb, 100Gb, 100Bb. As the liquid crystal panels 100Ra to 100Ba and the liquid crystal panels 100Rb to 100Bb, a liquid crystal panel 100 having a common structure can be used.

The projector 1 according to the second embodiment includes a light source 10, an integrator 20, a polarization separation element 35, a color separation light guide optical system 40a, an R light optical modulator 50Ra, a G optical optical modulator 50Ga, and B optical. Liquid crystal light modulator 50Ba, cross dichroic prism 60a, color splitter 80a, color separation light guide optical system 40b, liquid crystal light modulation device 50Rb for R light, liquid crystal light modulation device 50Gb for G light, and B light. It has a liquid crystal light modulator 50Bb, a cross dichroic prism 60b, a color polarizing element 80b, a synthetic optical system 65, a projection optical system 70, and a control device 200.

The light source 10 and the integrator 20 function in the same manner as in the first embodiment. The light emitted from the integrator 20 is incident on the polarization separating element 35. The polarization separating element 35, for example, reflects s-polarized light and transmits the p-polarized light to separate the incident light into s-polarized light and p-polarized light.

The s-polarized light reflected by the polarization separation element 35 is incident on the R light reflection dichroic mirror 41Ra of the color separation light guide optical system 40a. The color separation light guide optical system 40a includes an R light reflection dichroic mirror 41Ra, a G light reflection dichroic mirror 41Ga, and three reflection mirrors 42aa to 42ca.

The R light reflection dichroic mirror 41Ra reflects R light and transmits G light and B light. The R light reflected by the R light reflection dichroic mirror 41Ra is incident on the light modulation device 50Ra via the reflection mirror 42aa. The G light and B light transmitted through the R light reflection dichroic mirror 41Ra are incident on the G light reflection dichroic mirror 41Ga. The G light reflection dichroic mirror 41Ga reflects G light and transmits B light. G light reflection The G light reflected by the dichroic mirror 41Ga is incident on the light modulation device 50Ga. The B light transmitted through the G light reflection dichroic mirror 41Ga is incident on the light modulation device 50Ba via the reflection mirrors 42ba and 42ca.

The s-polarized R light incident on the optical modulator 50Ra is converted into p-polarized light by the λ / 2 retardation plate 53Ra, passes through the first polarizing plate 51Ra, enters the liquid crystal panel 100Ra, and is s-polarized by the liquid crystal panel 100Ra. Is converted into light, is emitted from the second polarizing plate 52Ra, and is incident on the cross dichroic prism 60a.

The s-polarized G light incident on the optical modulator 50Ga passes through the first polarizing plate 51Ga, enters the liquid crystal panel 100Ga, is converted into p-polarized light by the liquid crystal panel 100Ga, and is emitted from the second polarizing plate 52Ga. It is incident on the cross-diced prism 60a.

The s-polarized B light incident on the optical modulator 50Ba is converted into p-polarized light by the λ / 2 retardation plate 53Ba, passes through the first polarizing plate 51Ba, enters the liquid crystal panel 100Ba, and is s-polarized by the liquid crystal panel 100Ba. Is converted into light, is emitted from the second polarizing plate 52Ba, and is incident on the cross dichroic prism 60a.

The cross dichroic prism 60a functions in the same manner as the cross dichroic prism 60 of the first embodiment. The light emitted from the optical modulators 50Ra, 50Ga and 50Ba is combined by the cross dichroic prism 60a and incident on the color modulator 80a. The color splitter 80a converts s-polarized R light and B light into p-polarized R light and B light. As a result, the p-polarized R light, G light, and B light are emitted from the color polarizing element 80a.

The p-polarized light transmitted through the polarization separation element 35 is incident on the R light reflection dichroic mirror 41Rb of the color separation light guide optical system 40b. The color separation light guide optical system 40b includes an R light reflection dichroic mirror 41Rb, a G light reflection dichroic mirror 41Gb, and three reflection mirrors 42ab to 42cc.

The R light reflection dichroic mirror 41Rb reflects R light and transmits G light and B light. The R light reflected by the R light reflection dichroic mirror 41Rb is incident on the light modulation device 50Rb via the reflection mirror 42ab. The G light and B light transmitted through the R light reflection dichroic mirror 41Rb are incident on the G light reflection dichroic mirror 41Gb. The G light reflection dichroic mirror 41Gb reflects G light and transmits B light. G light reflection The G light reflected by the dichroic mirror 41Gb is incident on the light modulation device 50Gb. The B light transmitted through the G light reflection dichroic mirror 41Gb is incident on the light modulation device 50Bb via the reflection mirrors 42bb and 42bb.

The p-polarized R light incident on the optical modulator 50Rb passes through the first polarizing plate 51Rb, enters the liquid crystal panel 100Rb, is converted into s-polarized light by the liquid crystal panel 100Rb, and is emitted from the second polarizing plate 52Rb. It is incident on the cross-diced prism 60b.

The p-polarized G light incident on the optical modulator 50 Gb is converted into s-polarized light by the λ / 2 retardation plate 53 Gb, passes through the first polarizing plate 51 Gb, is incident on the liquid crystal panel 100 Gb, and is p-polarized by the liquid crystal panel 100 Gb. Is converted to, emitted from the second polarizing plate 52Gb, and incident on the cross-dycroic prism 60b.

The p-polarized B light incident on the optical modulator 50Bb passes through the first polarizing plate 51Bb, enters the liquid crystal panel 100Bb, is converted into s-polarized light by the liquid crystal panel 100Bb, and is emitted from the second polarizing plate 52Bb. It is incident on the cross-diced prism 60b.

The cross dichroic prism 60b functions in the same manner as the cross dichroic prism 60a. The light emitted from the optical modulators 50Rb, 50Gb and 50Bb is combined by the cross dichroic prism 60b and incident on the color modulator 80b. The color splitter 80b converts p-polarized G light into s-polarized G light. As a result, the s-polarized R light, G light, and B light are emitted from the color polarizing element 80b.

The p-polarized R light, G light and B light emitted from the color splitter 80a and the s polarized R light, G light and B light emitted from the color splitter 80b are incident on the synthetic optical system 65. .. The synthetic optical system 65 is emitted from the color polarizing element 80b so as to transmit, for example, the p-polarized R light, the G light, and the B light emitted from the color polarizing element 80a and to proceed in an overlapping manner with the transmitted light. It reflects s-polarized R light, G light and B light.

As a result, the synthetic optical system 65 is emitted from the p-polarized R light, G light and B light emitted from the color polarizing element 80a, that is, the image displayed on the liquid crystal panels 100Ra to 100Ba and the color polarizing element 80b. The s-polarized R light, G light and B light, that is, the images displayed on the liquid crystal panels 100Rb to 100Bb are combined.

The light emitted from the synthetic optical system 65 is projected onto the projection surface (screen) 90 by the projection optical system 70. By projecting the light synthesized by the synthetic optical system 65 onto the projection surface 90 in this way, a full-color image can be obtained on the projection surface 90.

An optical system (color separation light guide optical system 40a, optical modulators 50Ra to 50Ba, cross dichroic prism 60a, color splitter 80a) arranged until the light reflected by the polarization separation element 35 is incident on the synthetic optical system 65. ) Is referred to as "optical system a". Further, an optical system (color separation light guide optical system 40b, optical modulators 50Rb to 50Bb, cross dichroic prism 60b, color polarizing element) arranged until the light transmitted through the polarization separation element 35 is incident on the synthetic optical system 65. 80b) is referred to as "optical system b".

Next, the control device 200 will be described. FIG. 10 is an example of a block diagram showing the control device 200, the liquid crystal panels 100Ra to 100Ba of the optical system a, and the liquid crystal panels 100Rb to 100Bb of the optical system b.

The image signal VID is input to the image signal processing unit 210 of the control device 200. The image signal processing unit 210 stores the image signal VID in the frame memory 211 for each frame of each color (R, G, B).

Here, when an image based on an image signal is displayed in all the pixel regions 110 of each liquid crystal panel 100Ra to 100Ba of the optical system a, that is, in both the pixel region 111 and the pixel region 112, the pixel region. The portion of the image displayed at the position of 111 is referred to as "image P111", and the portion of the image displayed at the position of the pixel area 112 is referred to as "image P112".

The image signal processing unit 210 receives data signals (Dr, Dg, and Db) of the image P111 of the frame from the frame memory 211 so that the image P111 is displayed in the pixel area 111 of each liquid crystal panel 100Ra to 100Ba of the optical system a. Is read out and supplied to the liquid crystal panels 100Ra to 100Ba.

Further, the image signal processing unit 210 can display the image P112 in the pixel area 111 of each of the liquid crystal panels 100Rb to 100Bb of the optical system b from the frame memory 211 to the data signal (Dr, Dg and) of the image P112 of the frame. Db) is read out and supplied to the liquid crystal panels 100Rb to 100Bb.

The timing control unit 220 generates a clock signal or the like for supplying data signals (Dr, Dg and Db) to the liquid crystal panels 100Ra to 100Ba of the optical system a and the liquid crystal panels 100Rb to 100Bb of the optical system b, and generates a clock signal or the like to supply the liquid crystal panels 100Rb to 100Bb of the optical system b. It is supplied to the data line drive circuit of ~ 100Ba and 100Rb ~ 100Bb.

The display mode of the image in the second embodiment will be exemplified with reference to FIG. 8 again. Here, one liquid crystal panel 100 representing the liquid crystal panels 100Ra to 100Ba arranged in the optical system a is referred to as a "liquid crystal panel 100a (first liquid crystal panel)" and is arranged in the optical system b. One liquid crystal panel 100 that typically represents the liquid crystal panels 100Rb to 100Bb is referred to as a "liquid crystal panel 100b (second liquid crystal panel)". FIG. 8 is a schematic plan view showing the display areas 101 of the liquid crystal panels 100a and 100b simultaneously projected onto the projection surface 90.

The display area 101a, the opening 131a, the pixel area 111a, and the pixel area 112a are areas on the projection surface 90 on which the display area 101, the opening 131, the pixel area 111, and the pixel area 112 of the liquid crystal panel 100a are projected, respectively. The opening 131a is shown by a broken line.

The display area 101b, the opening 131b, the pixel area 111b, and the pixel area 112b are areas on the projection surface 90 on which the display area 101, the opening 131, the pixel area 111, and the pixel area 112 of the liquid crystal panel 100b are projected, respectively. The opening 131b is shown by a thick solid line.

In the liquid crystal panel 100a, the image P111 is displayed in the pixel area 111a, and the pixel area 112a is displayed in black. On the other hand, in the liquid crystal panel 100b, the image P112 is displayed in the pixel area 111b, and the pixel area 112b is displayed in black.

In the overall optical system of the projector 1 according to the present embodiment (hereinafter, also simply referred to as “optical system”), the pixel region 111b of the liquid crystal panel 100b is arranged on the pixel region 112a of the liquid crystal panel 100a, and the liquid crystal display is formed. The light emitted from the liquid crystal panel 100a and the light emitted from the liquid crystal panel 100b are projected so that the pixel region 112b of the liquid crystal panel 100b is overlapped on the pixel region 111a of the panel 100a. In the example shown in FIG. 8, the optical system is configured so that the projection region of the liquid crystal panel 100b is displaced by one pixel pitch to the right in the X direction with respect to the projection region of the liquid crystal panel 100a.

With such an optical system, the pixel region 111b of the liquid crystal panel 100b is arranged on the pixel region 112a displayed in black on the liquid crystal panel 100a, and the image P112 is displayed in the pixel region 111b. Then, the pixel region 111a of the liquid crystal panel 100a is arranged on the pixel region 112b displayed in black on the liquid crystal panel 100b, and the image P111 is displayed in the pixel region 111a.

As described above, by arranging the projection regions of the liquid crystal panels 100a and 100b in a staggered manner as described above, displaying the image P111 on the liquid crystal panel 100a, and displaying the image P112 on the liquid crystal panel 100b, the liquid crystal panel 100a is displayed. And the display of the image in the pixel region 112 at 100b can complement each other. In this way, it is possible to obtain an overall image in which the image P111 and the image P112 are combined.

Here, in order to avoid complication of explanation, a display mode for one liquid crystal panel 100a and 100b is typically illustrated for each of the optical system a and the optical system b, but the liquid crystal displaying each color in the optical system a is illustrated. Display is performed in the same manner on the panels 100Ra to 100Ba and the liquid crystal panels 100Rb to 100Bb displaying each color in the optical system b. This makes it possible to obtain a full-color overall image on the projection surface 90.

As the direction and amount of the deviation of the projection regions of the liquid crystal panels 100a and 100b, the deviation of one pixel pitch is exemplified on the right side in the X direction, but the direction and the amount of the deviation of the projection region are combined with the image P111 and the image P112. It may be selected so that the overall image obtained is appropriately obtained. For example, the direction of deviation may be the left side in the X direction, or the upper side or the lower side in the Y direction, if necessary. Further, for example, the amount of deviation is not necessarily one pixel pitch, and may be an odd number of pixel pitches, that is, 2n-1 (n is an integer of 1 or more) pixel pitch.

<Modification example>
Next, the liquid crystal panel 100 according to a modified example will be described. First, a first modification will be described. FIG. 11 is a schematic plan view of the liquid crystal panel 100 according to the first modification. The difference from the first embodiment (see FIG. 2) is that the electrode 122 is provided in the pixel region 112.

A predetermined fixed voltage (for example, a common voltage applied to the common electrode or an offset voltage) is applied to the electrode 122. By providing the electrode 122, it becomes easy to control the orientation of the liquid crystal in the pixel region 112, and it is possible to suppress the burning of the liquid crystal and the like. In this modification, the pixel area 112 is covered with the light-shielding film 150, and the state of the liquid crystal arranged in the pixel area 112 is not directly visible, but the disorder of the liquid crystal in the pixel area 112 is It is preferable to suppress it because it may spread to the pixel area 111 arranged in the periphery for displaying the image.

When the electrode 122 has the same size as the pixel electrode 121, the gap between the electrode 122 and the pixel electrode 121 becomes narrow, and the transverse electric field between the electrode 122 and the pixel electrode 121 becomes large, which is caused by the transverse electric field. The liquid crystal orientation is likely to be disturbed. Therefore, it is preferable that the electrode 122 is smaller than the pixel electrode 121 provided in the pixel region 111. This makes it possible to control the liquid crystal orientation in the pixel region 112 while suppressing the lateral electric field between the electrode 122 and the pixel electrode 121. The fact that the electrode 122 is smaller than the pixel electrode 121 means that the electrode 122 is contained in the pixel electrode 121 in a plan view, and the electrode 122 is a pixel electrode 121 in a plan view, for example. It means that it is narrower than.

Next, a second modification will be described. FIG. 12 is a schematic plan view of the liquid crystal panel 100 according to the second modification. The difference from the first embodiment (see FIG. 2) is that the light-shielding film 150 is provided with an opening 132 in the pixel region 112. In this aspect, the liquid crystal panel 100 in the normally black mode is used.

It is preferable that the pixel region 112 is covered with the light-shielding film 150 from the viewpoint of satisfactorily displaying black in the pixel region 112. However, since the light-shielding film 150 absorbs the irradiated light, it is preferable not to arrange the light-shielding film 150 from the viewpoint of suppressing the temperature rise of the liquid crystal panel 100. In this modification, the light-shielding film 150 has an opening 132 in the pixel region 112, so that the temperature rise of the liquid crystal panel 100 can be suppressed.

The opening 132 in the pixel region 112 is not a region for transmitting light to display an image, but may have a size sufficient to suppress an increase in temperature. Therefore, the opening 132 may be smaller than the opening 131 in the pixel region 111. The fact that the opening 132 is smaller than the opening 131 means that, for example, the opening 132 is included in the opening 131 in a plan view, and for example, the opening 132 is smaller than the opening 131 in a plan view. It means that it is narrow. It is preferable that the opening 132 is smaller than the opening 131, for example, from the viewpoint of suppressing light leakage through the opening 132. In the pixel region 112, the region covered with the light-shielding film 150 other than the opening 132 may be effectively used to form the TFT 160 and the storage capacity 161.

Since the pixel region 112 is not provided with the pixel electrodes, the liquid crystal orientation basically does not change, and even if the opening 132 is provided, the display remains black. However, unintended charging occurs in the pixel region 112, and the liquid crystal orientation changes due to this, which may cause light loss.

Therefore, when the opening 132 is provided in the pixel region 112, it is more preferable to provide the electrode 122 as in the first modification and to perform stable black display in the pixel region 112 by applying a voltage to the electrode 122. FIG. 13 shows, as a third modification, an embodiment in which the pixel region 112 has an opening 132 and an electrode 122. Even when the opening 132 is provided in the pixel region 112, a normally white liquid crystal panel 100 may be used if the electrode 122 is provided and a black display can be performed in the pixel region 112 by applying a voltage.

The above-mentioned liquid crystal panel 100 may be used for a front projection type projector that projects from the side for observing the projected image, or may be used for a rear projection type projector that projects from the side opposite to the side for observing the projected image. May be good.

The electronic device that can use the above-mentioned liquid crystal panel 100 is not limited to the projector. The liquid crystal panel 100 is, for example, a projection type HUD (head-up display) or a direct-view type HMD (head-mounted display), or an electronic book, a personal computer, a digital still camera, a liquid crystal television, a viewfinder type or a monitor direct-view type video. It may be used as a display unit of an information terminal device such as a recorder, a car navigation system, an electronic notebook, or a POS.

1 ... projector, 10 ... light source, 20 ... integrator, 30 ... polarization conversion element, 35 ... polarization separation element, 40 ... color separation light guide optical system, 41R ... R light transmission dichroic mirror, 41G ... element substrate, 42a ... mirror, 42b ... mirror, 42c ... mirror, 50R ... R optical liquid crystal light modulator, 50G ... G optical liquid crystal light modulator, 50B ... B optical liquid crystal light modulator, 51R ... first polarizing plate, 51G ... first polarization Plate, 51B ... 1st polarizing plate, 52R ... 2nd polarizing plate, 52G ... 2nd polarizing plate, 52B ... 2nd polarizing plate, 53R ... λ / 2 retardation plate, 53B ... λ / 2 retardation plate, 60 ... Cross-dycroic prism, 65 ... Synthetic optical system, 70 ... Projection optical system, 80a ... Color polarizing element, 80b ... Color polarizing element, 90 ... Projection surface, 100 ... Liquid crystal panel, 100R ... Liquid crystal panel, 100G ... Liquid crystal panel, 100B ... Liquid crystal panel, 101 ... display area, 110 ... pixel area, 111 ... first type pixel area, 112 ... second type pixel area, 121 ... pixel electrode, 122 ... electrode, 131 ... opening, 132 ... opening, 141 ... Scanning line, 142 ... data line, 150 ... light-shielding film, 160 ... TFT, 161 ... storage capacity, 170 ... MLA, 171 ... lens, 200 ... control device, 210 ... image signal processing unit, 211 ... frame memory, 220 ... timing Control unit, 300 ... Optical path shift element, 310 ... Optical path shift device.

Claims (6)

A display area in which a first-type pixel area and a second-type pixel area are alternately arranged in a first direction and a second direction intersecting the first direction, respectively.
Pixel electrodes provided corresponding to the first-class pixel region,
An electrode provided corresponding to the second type pixel region and having a smaller area than the pixel electrode,
A first opening provided in the display area corresponding to the first type pixel area and a second opening provided corresponding to the second type pixel area and having a smaller area than the first opening. A light-shielding film including 2 openings,
With a microlens array,
The optical axis of the lens of the microlens array intersects the pixel region of the first type and does not intersect the pixel region of the second type.
LCD panel. The pitch of the pixel electrodes in the first direction and the pitch of the pixel electrodes in the second direction are equivalent.
The liquid crystal panel according to claim 1. At least one of the switching element and the storage capacity is provided in the region of the second type pixel region covered with the light-shielding film.
The liquid crystal panel according to claim 1 or 2. A display area in which a first-type pixel area and a second-type pixel area are alternately arranged in a first direction and a second direction intersecting the first direction, respectively.
Pixel electrodes provided corresponding to the first-class pixel region,
An electrode provided corresponding to the second type pixel region and having a smaller area than the pixel electrode,
A first opening provided in the display area corresponding to the first type pixel area and a second opening provided corresponding to the second type pixel area and having a smaller area than the first opening. A liquid crystal panel having 2 openings and a light-shielding film including
An optical system that projects the light emitted from the liquid crystal panel,
The first type pixel area is projected at a position on the projection surface on which the second type pixel region is projected in the first period, and the first type pixel is projected in the first period. An optical path shift device that shifts the optical path of light emitted from the liquid crystal panel so that the second type pixel region is projected at a position on the projection surface on which the region is projected.
Have,
projector. A display area in which the first-type pixel area and the second-type pixel area are alternately arranged in the first direction and the second direction in which the first-type pixel area intersects the first direction, respectively.
Pixel electrodes provided corresponding to the first-class pixel region,
An electrode provided corresponding to the second type pixel region and having a smaller area than the pixel electrode,
A first opening provided in the display area corresponding to the first type pixel area and a second opening provided corresponding to the second type pixel area and having a smaller area than the first opening. A first liquid crystal panel and a second liquid crystal panel having a light-shielding film including two openings, respectively.
The first type pixel area of the second liquid crystal panel is superimposed and projected on a position on the projection surface on which the second type pixel area of the first liquid crystal panel is projected, and the first type is projected. The second type of liquid crystal panel is projected so that the second type of pixel area of the second liquid crystal panel is superimposed on the position on the projection surface on which the first type pixel area of the liquid crystal panel 1 is projected. An optical system that projects the light emitted from the liquid crystal panel 1 and the light emitted from the second liquid crystal panel.
Have,
projector. The liquid crystal panel according to any one of claims 1 to 3.
Electronic equipment equipped with.

Images