KR20210104699A - image display device - Google Patents

Abstract

An image display device according to one embodiment of the present technology includes an image generating unit and a projection optical system. The image generator has a first pixel area and a second pixel area, and generates image light including first pixel light generated by the first pixel area and second pixel light generated by the second pixel area do. The projection optical system projects the image light so that an image state of a first partial image constituted by the first pixel light is different from an image state of a second partial image constituted by the second pixel light.

Description

image display device

The present technology relates to an image display device such as a projector.

In the display device described in Patent Document 1, the display panel is divided into a central display region, a peripheral display region, and a frame region. The light-transmitting cover is disposed with respect to the display panel so that the lens portion of the light-transmitting cover overlaps the peripheral display area of the display panel. The image generated by the peripheral display area is enlarged by the lens portion of the translucent cover, so that the virtual image is projected on the frame area. Thereby, it is possible to make the displayed image appear as if it is on a frame, and it is intended to make the frame area difficult to see (paragraphs [0012], [0016], Figs. 1, 2, etc. of Patent Document 1). ).

Patent Document 1: Japanese Patent Laid-Open No. 2015-172661

DESCRIPTION OF RELATED ART Regarding image display apparatuses, such as a projector, the technique which can implement|achieve high-quality image display is calculated|required.

In view of the above circumstances, an object of the present technology is to provide an image display device capable of realizing high-quality image display.

In order to achieve the above object, an image display apparatus according to one aspect of the present technology includes an image generating unit and a projection optical system.

The image generator has a first pixel area and a second pixel area, and generates image light including first pixel light generated by the first pixel area and second pixel light generated by the second pixel area do.

The projection optical system projects the image light so that an image state of a first partial image constituted by the first pixel light is different from an image state of a second partial image constituted by the second pixel light.

In this image display device, image light including the first pixel light generated by the first pixel area and the second pixel light generated by the second pixel area is generated. Then, the image light is projected so that the image state of the first partial image constituted by the first pixel light and the image state of the second partial image constituted by the second pixel light are different from each other. This makes it possible to realize high-quality image display.

The first pixel region may be a central region located in the center of the image generating unit. In this case, the second pixel region may be a peripheral region surrounding the periphery of the central region.

The image state may include the resolution of the image. In this case, the projection optical system may project the image light so that the resolution of the first partial image is different from the resolution of the second partial image.

The projection optical system may project the image light so that the resolution of the second partial image is lower than the resolution of the first partial image.

The pixel pitch of the first pixel region may be different from the pixel pitch of the second pixel region.

The pixel pitch of the second pixel region may be larger than the pixel pitch of the first pixel region.

The pixel pitch of the first pixel region may be equal to the pixel pitch of the second pixel region.

The projection optical system may have a first projection unit for projecting the first pixel light and a second projection unit for projecting the second pixel light.

The first projection unit may project the first pixel light at a predetermined magnification. In this case, the second projection unit may project the second pixel light at a larger magnification than the first projection unit.

The first projection unit may project the first pixel light at a predetermined magnification. In this case, the second projection unit may project the second pixel light at the same magnification as that of the first projection unit.

The projection optical system may have a projection lens unit that projects the image light incident along a predetermined direction along a predetermined optical axis direction.

The projection optical system may have a magnifying lens unit that magnifies at least a part of the second pixel light and makes it incident on the projection lens unit along the predetermined direction.

The first pixel region may be a central region located in the center of the image generating unit. In this case, the second pixel region may be a peripheral region surrounding the periphery of the central region. In this case, the magnifying lens unit magnifies the pixel light generated by an outer region positioned on the opposite side to the central region of the second pixel region among the second pixel lights to extend the projection lens unit along the predetermined direction. may be employed in

The projection optical system may include a magnifying lens that makes at least a part of the second image light incident on the projection lens unit along a direction intersecting the predetermined direction.

The first pixel area may be a central area located at the center of the image generating unit. In this case, the second pixel region may be a peripheral region surrounding the periphery of the central region. In this case, the magnifying lens unit may be configured to project the pixel light generated by an outer area of the second pixel area opposite to the central area of the second pixel light along a direction crossing the predetermined direction. You may make it incident on a lens part.

The magnifying lens unit may include a plurality of microlenses disposed in each of a plurality of pixels included in the second pixel region.

Each of the plurality of microlenses may have a curvature corresponding to the position of the arranged pixel.

The image generating unit may include a non-generation region in which pixel light is not generated between the first pixel region and the second pixel region.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram which shows the structural example of the image display apparatus which concerns on 1st Embodiment.
2 is a schematic diagram showing an example of a projection image projected by an image display device.
3 is a diagram schematically showing an example of a pixel configuration of an LCD.
4 is a schematic diagram showing an example of a pixel circuit for displaying a projected image.
Fig. 5 is a schematic diagram for explaining the projection of image light generated by the LCD.
6 is a schematic diagram showing another example of a method for projecting an effective image and an extended image.
7 is a schematic diagram showing another example of a method of projecting an effective image and an extended image.
8 is a schematic diagram showing another example of a method of projecting an effective image and an extended image.
It is a schematic diagram which shows another example of the projection method of an effective image and an extended image.
10 is a schematic diagram showing an example of a circuit configuration of a pixel region of an LCD according to the second embodiment.
11 is a schematic diagram showing an example of a circuit configuration of a pixel region of an LCD according to the third embodiment.
12 is a schematic diagram showing another example of a pixel configuration of an LCD.
13 is a schematic diagram showing another example of a pixel configuration of an LCD.
14 is a schematic diagram showing another example of a pixel configuration of an LCD.
15 is a schematic diagram showing another example of a pixel configuration of an LCD.
Fig. 16 is a schematic diagram of a three-plate system image display device using a reflective display panel.
Fig. 17 is a schematic diagram of a three-plate type image display device using a self-luminous display panel.
18 is a schematic diagram of an image display device of a single-panel system using a transmissive display panel.
19 is a schematic diagram of an image display apparatus of a single-panel system using a transmissive display panel having a built-in color filter.
Fig. 20 is a schematic diagram of an image display device of a one-plate system using a self-luminous display panel.
Fig. 21 is a schematic diagram showing an example of a circuit in the case where the pixels for displaying the projected image are RGB 3 pixels.
22 is a schematic diagram showing blending of a projected image.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment which concerns on this technology is described, referring drawings.

<First embodiment>

[Image display device]

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram which shows the structural example of the image display apparatus which concerns on 1st Embodiment of this technology. The image display device 500 is used as a projector for presentations or digital cinema, for example. The present technology described below is applicable also to an image display device used for other uses.

In addition, in this embodiment, the image display apparatus 500 of the three-plate system using the transmissive display panel is used. Although described later, the present technology is applicable to other various types of image display apparatuses.

As shown in FIG. 1 , the image display device 500 includes a light source device 100 , an image generation system 200 , and a projection system 400 .

The light source device 100 emits the white light W1 to the image generating system 200 . Solid light sources, such as LED (Light Emitting Diode) and LD (Laser Diode), or a mercury lamp, a xenon lamp, etc. are arrange|positioned in the light source device 100 .

For example, a solid-state light source for RGB capable of emitting light of each color of RGB may be used, and these emitted lights may be synthesized to generate white light W1. Alternatively, a solid-state light source that emits light in a blue wavelength band and a phosphor that is excited by blue light and emits yellow fluorescence may be arranged. In this case, blue light and yellow light are combined to emit white light W1 . In addition, any method or any configuration for generating and emitting the white light W1 may be employed.

The image generating system 200 has an integrator optical system 210 and an illumination optical system 220 . The integrator optical system 210 includes an integrator element 211 , a polarization conversion element 212 , and a condensing lens 213 .

The integrator element 211 is a first fly's eye lens 211a having a plurality of microlenses arranged in two dimensions, and a second fly having a plurality of microlenses arranged to correspond one by one to the plurality of microlenses. It has an eye lens 21lb.

The white light W1 incident on the integrator element 211 is divided into a plurality of light beams by the microlens of the first fly's eye lens 211a, and the corresponding microlens installed on the second fly's eye lens 211b. Each image is formed on each lens. Each of the microlenses of the second fly's eye lens 21lb functions as a secondary light source, and a plurality of parallel lights with uniform luminance are emitted to the polarization conversion element 212 at the rear stage.

The polarization conversion element 212 has a function of matching the polarization state of the incident light incident through the integrator element 211 . The light passing through the polarization conversion element 212 is emitted to the illumination optical system 220 through the condensing lens 213 .

As a whole, the integrator optical system 210 has a function of adjusting the white light W1 directed to the illumination optical system 220 to a uniform luminance distribution and adjusting the polarization state to be the same. A specific configuration of the integrator optical system 210 is not limited.

The illumination optical system 220 includes dichroic mirrors 230 and 240, mirrors 250, 260 and 270, field lenses 280R, 280G and 280B, relay lenses 290 and 300, and an LCD as an image generating element. liquid crystal display) 310R, 310G and 310B, and a dichroic prism 320 . The LCDs 310R, 310G, and 310B function as transmissive display panels.

The dichroic mirrors 230 and 240 have a property of selectively reflecting color light of a predetermined wavelength range and transmitting light of other wavelength ranges. The dichroic mirror 230 selectively reflects the green light G1 and the blue light B1 included in the white light W1, and transmits the red light R1 included in the white light W1. . The dichroic mirror 240 selectively reflects the green light G1 reflected by the dichroic mirror 230 and transmits the blue light B1. Thereby, light of different colors is separated into different optical paths, respectively. In addition, the structure for separating each color light of RGB, the device used, etc. are not limited.

The separated red light R1 is reflected by the mirror 250 , is collimated by the field lens 280R, and is incident on the red light modulation LCD 310R. The green light G1 is collimated by the field lens 280G, and then is incident on the green light modulation LCD 310G. The blue light B1 passes through the relay lens 290 and is reflected by the mirror 260 , and further passes through the lens 300 and is reflected by the mirror 270 . The blue light B1 reflected by the mirror 270 is collimated by the field lens 280B, and then is incident on the blue light modulation LCD 310B.

The LCDs 310R, 310G, and 310B are electrically connected to a signal source not shown (for example, a PC or the like) that supplies an image signal including image information. The LCDs 310R, 310G, and 310B modulate incident light for each pixel based on the supplied image signal of each color, and respectively, a red image light R2, a green image light G2, and a blue image light B2. ) is created. On the other hand, image light corresponds to light constituting an image.

The generated image lights R2, G2, and B2 of each color of RGB enter the dichroic prism 320 and are combined. The dichroic prism 320 superimposes and synthesizes image lights R2, G2, and B2 of each color incident from three directions on the same axis to generate image light W2. The generated image light W2 is emitted toward the projection system 400 along a predetermined direction.

The projection system 400 projects the image light W2 generated by the image generating system 200 . The projection system 400 has a plurality of lenses 410 and the like, and projects the image light W2 synthesized and emitted by the dichroic prism 320 onto a projection object such as a screen (not shown). Thereby, a full-color image is displayed on the to-be-projected object. The specific configuration of the projection system 400 is not limited.

[Projection image]

2 is a schematic diagram showing an example of a projection image projected by the image display device 500 . When the image light W2 emitted from the image display device 500 is projected onto a target object such as a screen, the projected image 30 is displayed. The projection image 30 corresponds to an image constituted by the image light W2.

In addition, any object, such as a screen, a wall, and a vehicle body, may be used as a to-be-projected object. The shape of the projection surface on which the image light W2 is projected, that is, the display surface on which the projection image 30 is displayed, is also not limited. For example, a flat screen, a curved screen, etc. may be used. For example, by using a screen curved to surround a user viewing an image, it becomes possible to improve the feeling of immersion in the image, and it becomes possible to provide a high-quality viewing experience.

As shown in FIG. 2 , in the present embodiment, an image including an effective image 10 and an extended image 20 is displayed as the projected image 30 . In the example shown in FIG. 2 , as the projection image 30 , an image representing scenery such as a mountain, the sea, and a private house is displayed. Of course, the specific content (content) of the projection image 30 is not limited, and various images may be displayed.

In addition, in the present disclosure, an image includes both a still image and a moving image. It is also possible to assume that a plurality of frame images constituting a moving image are a plurality of still images. For example, the present technology is applicable to an arbitrary still image such as a photograph, and an arbitrary moving image such as a movie or game video.

The effective image 10 is displayed in the central area 11 of the projection image 30 . Thereby, for example, the central field of view of the user facing the front with respect to the projection image 30 (the area the user is focusing on) and the stable main field of view (the area where information can be viewed in a stable state) are covered. , it becomes possible to display the effective image 10 .

The expanded image 20 is displayed in the peripheral region 21 surrounding the periphery of the central region 11 of the projection image 30 . That is, the extended image 20 is displayed so as to surround the periphery of the effective image 10 . Thereby, for example, it becomes possible to display the expanded image 20 in the peripheral field of view of the user facing the front with respect to the projection image 30 (the area|region which grasps a 1st impression or an overall view). In addition to the effective image 10 in this way, the extended image 20 is displayed around the effective image 10 . Thereby, it becomes possible for the user to obtain a viewing experience with a sense of realism as being surrounded by an image. As a result, high-quality image display is realized.

For example, as the effective image 10, an image corresponding to Full HD with an aspect ratio of 16:9 and 1920 horizontal pixels x 1080 vertical pixels is displayed. In the vicinity thereof, an expanded image 20 to improve the sense of presence is displayed. Of course, it is not limited to this configuration of the projection image 30 .

In the present embodiment, the image light W2 is projected and the projected image 30 is displayed so that the resolution of the effective image 10 is different from the resolution of the extended image 20 . Specifically, the image light W2 is projected so that the resolution of the extended image 20 is lower than the resolution of the effective image 10 .

For example, as the effective image 10 displayed in the user's stable main field of view, a high-resolution, very fine (fixed-definition) image is displayed. Then, as the expanded image 20 displayed in the user's peripheral field of view, a low-resolution image is displayed. On the other hand, the image of this peripheral field of view may be a defocused image out of focus. Thereby, it becomes possible to concentrate consciousness on the effective image 10 while feeling a sense of presence. That is, it becomes possible to sufficiently prevent a state in which the user is distracted by the expanded image 20, and a very high-quality image display is realized.

On the other hand, the resolution of the effective image 10 and the resolution of the extended image 20 can be defined according to the density of effective pixels included in the effective image 10 and the density of expanded pixels included in the extended image 20 . do.

In the present embodiment, the resolution of the image displayed on the projected object is included in the image state displayed on the projected object. That is, in the present embodiment, the image light W2 is projected so that the image state of the effective image is different from the image state of the extended image.

Further, in the present disclosure, the image state includes various parameters related to how an image is displayed on a projected object. For example, the magnification ratio for the image light W2, the pixel size, and the like may also be included in the image state.

The method of generating the effective image data for displaying the effective image 10 and the extended image data for displaying the extended image 20 is not limited. For example, effective image data and extended image data may be prepared in advance for each content. Alternatively, image data of the main content displayed on the entire conventional display is used as effective image data. Incidentally, the extended image data may be appropriately generated based on the effective image data.

For example, image data near the edge of the effective image 10 may be used as extended image data as it is. Alternatively, by analyzing the effective image data, images around the effective image 10 may be detected, and extended image data may be generated. Alternatively, when video content or the like is displayed, extended image data may be generated by analyzing the information of the frame images before and after.

3 is a diagram schematically showing an example of the pixel configuration of the LCD 310 . The LCDs 310R, 310G, and 310B shown in Fig. 1 have pixel structures equivalent to each other. Therefore, the LCDs 310R, 310G, and 310B are not distinguished, and the description is given as the LCD 310 .

In addition, description of the synthesis of the red image light R2, green image light G2, and blue image light B2 generated by the LCDs 310R, 310G, and 310B is omitted, and the LCD 310 In some cases, the image light generated by ? is described as the image light W2 shown in FIG. 1 .

A pixel area in which pixels of the LCD 310 are disposed is divided into an effective pixel area 15 and an extended pixel area 25 . The effective pixel area 15 is set in the central area 11 located at the center of the pixel area. By the effective pixel area 15, effective pixel light is generated. That is, the effective pixel light is constituted by the pixel light emitted from the effective pixel 16 included in the effective pixel area 15 .

The expanded pixel region 25 is set in the peripheral region 21 surrounding the periphery of the central region 11 of the pixel region. That is, the extended pixel region 25 is set to surround the periphery of the effective pixel region 15 . By the expanded pixel region 25, expanded pixel light is generated. That is, the expanded pixel light is constituted by the pixel light emitted from the expanded pixel 26 included in the expanded pixel area 25 .

In the present embodiment, image light W2 including effective pixel light and extended pixel light is generated by the LCD 310 . On the other hand, when the RGB synthesis is described, the effective pixel light included in the image light W2 corresponds to the full-color effective pixel light in which the effective pixel light of each color of RGB is synthesized. In addition, the extended pixel light included in the image light W2 corresponds to the full color extended pixel light in which the extended pixel light of each color of RGB is synthesize|combined.

When the image light W2 is projected onto the projected object, the effective image 10 shown in FIG. 2 is constituted by the effective pixel light included in the image light W2. In addition, the expanded image 20 shown in FIG. 2 is comprised by the expanded pixel light contained in the image light W2. That is, the image display device 500 sets the image light W2 so that the image state of the effective image 10 constituted by the effective pixel light is different from the image state of the extended image 20 constituted by the expanded pixel light. ) is projected.

For example, as the effective pixel area 15, an area having an aspect ratio of 16:9 and including a pixel configuration corresponding to Full HD of 1920 horizontal pixels x 1080 vertical pixels is set. In its periphery, an expanded pixel area is set to improve the sense of presence. Of course, it is not limited to such a pixel configuration of the projected image 30 .

In the present embodiment, the pixel pitch of the effective pixel region 15 is set to be different from the pixel pitch of the extended pixel region 25 . Specifically, the pixel pitch of the extended pixel region 25 is set to be larger than the pixel pitch of the effective pixel region 15 . Also, as shown in FIG. 3 , it can be said that the density of pixels in the extended pixel region 25 is greater than the density of pixels in the effective pixel region 15 .

In the present embodiment, the effective pixel area 15 and the effective pixel light correspond to the first pixel area and the first pixel light. The expanded pixel area 25 and the expanded pixel light correspond to the second pixel area and the second pixel light. The LCD 310 has a first pixel area and a second pixel area, and generates image light including first pixel light generated by the first pixel area and second pixel light generated by the second pixel area It corresponds to the image generating unit that

In addition, in this embodiment, the effective image 10 corresponds to the 1st partial image comprised by the 1st pixel light. The expanded image 20 corresponds to a second partial image constituted by the second pixel light.

4 is a schematic diagram showing an example of a circuit configuration of a pixel region of the LCD 310 . In Fig. 4, the number of effective pixels 16 and expansion pixels 26 is shown to be small in order to simplify the illustration. Of course, the number of effective pixels and expansion pixels is not limited and may be set arbitrarily.

The LCD 310 includes a plurality of effective pixels 16 , a plurality of expansion pixels 26 , a gate driver 311 , a source driver 315 , a plurality of gate lines 312 , and a plurality of sources. line 316 . On the other hand, in the drawing, the gate line 312 is illustrated as "Gate()", and the source line 316 is illustrated as "Sig()".

In the example shown in FIG. 4, a total of 36 effective pixels 16 of 6x6 are arrange|positioned. The area in which the 36 effective pixels 16 are arranged becomes the effective pixel area 15 .

The expansion pixel 26 has a size corresponding to a total of 9 effective pixels 16 of 3×3. That is, the pixel size of the expansion pixel 26 is 9 times the pixel size of the effective pixel 16 . Further, the pixel pitch of the expansion pixel 26 is three times the pixel pitch of the effective pixel 16 .

As shown in FIG. 4 , in the present embodiment, two expansion pixels 26 arranged left and right are arranged above and below the effective pixel area 15 . In addition, a total of four expansion pixels 26 of 2x2 are arranged on the left and right of the effective pixel area 15, respectively. In addition, in each of the four corners of the LCD 310, two expansion pixels 26 arranged left and right are arranged. The area in which the total of 20 expanded pixels 26 are arranged becomes the expanded pixel area 25 .

Corresponding to the 36 effective pixels 16, gate lines 1 to 6 and source lines 1 to 6 are respectively arranged. A gate line T1 is arranged for the extended pixels 26 lining up left and right on top of the LCD 310 . A gate line B1 is disposed with respect to the extended pixels 26 lined up left and right in the lowermost part of the LCD 310 . In addition, source lines L1 and L2 are arranged with respect to the two columns of extended pixels 26 arranged vertically from the left end of the LCD 310 . Source lines R1 and R2 are arranged for two columns of extended pixels 26 arranged vertically from the right end of the LCD 310 .

For the extended pixels 26 arranged left and right in the second row from the top of the LCD 310, any one of the gate lines 1 to 3 can be used as the gate line. For the extended pixels 26 arranged on the left and right in the second row from the bottom of the LCD 310, any one of the gate lines 4 to 6 can be used as the gate line.

For the extended pixels 26 arranged one at a time on the top and bottom of the third row from the left end of the LCD 310, any one of the source lines 1 to 3 can be used as the source line. For the extended pixels 26 arranged one at a time on the top and bottom of the third row from the right end of the LCD 310, any one of the source lines 4 to 6 can be used as the source line.

As in the example shown in FIG. 4 , the pixel pitch of the expansion pixel 26 is designed to be an integer multiple of the pixel pitch of the effective pixel 16 . Thereby, the design of a circuit structure becomes easy. For example, it becomes possible to share the gate line 312 and the source line 316 in the effective pixel 16 and the expansion pixel 26, and it becomes possible to realize the simplification of the circuit configuration and the manufacturing process.

Of course, the number, shape, and size of the effective pixel 16 and the expansion pixel 26 are not limited. For example, the number, shape, and size of the effective pixel 16 and the expansion pixel 26 may be arbitrarily set according to the shape and size of the LCD 310 .

5 is a schematic diagram for explaining the projection of image light generated by the LCD 310. As shown in FIG. Although described above, the image light generated by the LCD 310 will be described as the image light W2 shown in FIG. 1 . The projection lens unit 50 in the drawing schematically shows a lens optical system including a plurality of projection lenses 410 in the projection system 400 shown in FIG. 1 .

The LCD 310 has a plurality of effective pixels 16 , a plurality of expansion pixels 26 , and a frame 36 . The frame 36 is arranged to surround the periphery of the expansion pixel 26 , and contains peripheral circuitry for functioning the LCD 310 .

The image light W2 generated by the LCD 310 is emitted toward the projection lens unit 50 along a predetermined direction. The projection lens unit 50 projects the image light W2 incident along a predetermined direction on the screen 60 along a predetermined optical axis direction.

Typically, the predetermined direction corresponds to the optical axis direction of the projection lens unit 50 (projection lens optical system). In addition, the predetermined optical axis direction becomes the optical axis direction of the image display device 500 . Further, as shown in FIG. 5 , the projection lens unit 50 projects an image inverted vertically and horizontally on the screen 60 with respect to the incident image light W2 . On the other hand, it is not limited to the configuration of such a projection optical system.

Also, in reality, by the projection lens unit 50 , the image light W2 generated by the LCD 310 is enlarged at a predetermined magnification and projected on the screen 60 . The image size of the projection image 30 displayed on the screen 60 is determined by the magnification of the projection lens unit 50 , the distance between the screen 60 and the image display device 500 , and the like.

Hereinafter, the enlargement ratio of the projection image 30 with respect to the image light W2 will be explained. In order to make the explanation easy to understand, in Fig. 5, a diagram in which the image light W2 generated by the LCD 310 is not magnified and projected on the screen 60 is schematically shown. This figure can be said to be a figure which shows an example of the state in which the image light W2 is expanded at the same magnification as a whole and projected on the screen 60. As shown in FIG.

As described with reference to FIGS. 3 and 4 , the pixel pitch of the extended pixel region 25 of the LCD 310 is designed to be larger than the pixel pitch of the effective pixel region 15 . Then, as shown in Fig. 5, the image light W2 generated by the LCD 310 is expanded at the same magnification as a whole and projected on the screen 60 (in the example of Fig. 5, equal magnification).

Accordingly, the image light W2 is projected so that the resolution of the expanded image constituted by the expanded pixel light 27 is lower than the resolution of the effective image 10 constituted by the effective pixel light 17 . Thereby, as illustrated in FIG. 2, it becomes possible to project the projection image 30 whose center is high resolution and the periphery is low resolution. As a result, it becomes possible to realize high-quality image display.

In the present embodiment, the projection lens unit 50 is configured such that the image state of the first partial image constituted by the first pixel light is different from the image state of the second partial image constituted by the second pixel light; It functions as a projection optical system for projecting image light.

Further, the projection lens unit 50 also functions as a first projection unit for projecting the effective pixel light 17 (first pixel light) and as a second projection unit for projecting the expanded pixel light (second pixel light). . On the other hand, the portion of the projection lens unit 50 that has an optical action on the effective pixel light 17 is regarded as the first projection section, and the portion that has an optical action on the expanded pixel light 27 is the second It is also possible to regard it as a projection unit.

In the example shown in FIG. 5, the following matters are established. That is, the first projection unit projects the effective pixel light at a predetermined magnification, and the second projection unit projects the expanded pixel light at the same magnification as the first projection unit.

[Modified example of the first embodiment]

A modified example of the first embodiment will be described with reference to FIGS. 6 to 9 . 6 to 9 are schematic diagrams showing another example of a method of projecting an effective image and an extended image. In the configuration illustrated in FIGS. 6 to 9 , a microlens is added to further increase the area of the extended image 20 of the projected image 30 . On the other hand, as the area of the extended image increases, the resolution of the extended image becomes lower.

The microlens may be configured separately from the LCD 310 or may be configured integrally with the LCD 310 . In addition, the specific structure of a microlens is not limited, either, Arbitrary structures, such as a Fresnel lens and a diffractive lens, may be employ|adopted. In addition, any technique for realizing a microlens may be used.

In the example shown in FIG. 6, the 1st microlens 51 and the 2nd microlens 52 are arrange|positioned so that the expanded pixel area|region 25 may be covered. That is, the first microlens 51 and the second microlens 52 are disposed on the optical path of the expansion pixel light 27 emitted from the expansion pixel 26 .

As shown in FIG. 6 , the first microlens 51 and the second microlens 52 enlarge the expanded pixel light 27 and make it enter the projection lens unit 50 along a predetermined direction. This makes it possible to project the projected image 30 in which the expanded image 20 is further enlarged on the screen 60 . As a result, a more realistic image display is realized, and it becomes possible to provide a high-quality viewing experience. Further, it becomes possible to enlarge the expanded image 20 of the projected image 30 without enlarging the LCD 310, which is very advantageous for downsizing the device.

Further, in FIG. 6 , the expanded pixel light 27 is projected onto the screen 60 so as to spread in the frame 36 direction by the first microlens 51 and the second microlens 52 . As a result, it becomes possible to display the expanded image 20 on the screen 60 more widely with respect to the area of the expanded pixel region 25 . Thereby, it becomes possible to narrow the frame by utilizing the area|region in which the frame 36 is arrange|positioned.

In the example shown in FIG. 6 , the first microlens 51 and the second microlens 52 function as a part of the second projection unit that projects the second pixel light at a larger magnification than the first projection unit. In addition, the first microlens 51 and the second microlens 52 are magnifying lens units that magnify at least a part of the expanded pixel light 27 and make it incident on the projection lens unit 50 along a predetermined direction. function

In the example shown in FIG. 7, the 3rd microlens 53 is arrange|positioned so that the expanded pixel area|region 25 may be covered. That is, the third microlens 53 is disposed on the optical path of the expansion pixel light 27 emitted from the expansion pixel 26 .

As shown in FIG. 7 , the third microlens 53 makes the expanded pixel light 27 incident on the projection lens unit 50 along a direction intersecting a predetermined direction. In the present embodiment, on the front end side of the projection lens unit 50 , the extended pixel light 27 is incident on the projection lens unit 50 so that the extended pixel light intersects.

This makes it possible to project the projected image 30 in which the expanded image 20 is further enlarged on the screen 60 . As a result, a more realistic image display is realized, and it becomes possible to provide a high-quality viewing experience. Further, it becomes possible to enlarge the expanded image 20 of the projected image 30 without enlarging the LCD 310, which is very advantageous for downsizing the device.

As a difference from the example shown in FIG. 6 , in the example shown in FIG. 7 , when the expanded pixel area 25 is enlarged, it enters the projection lens unit 50 perpendicularly, so that the projection fits the area of the expanded pixel area 25 . It is necessary to increase the size of the lens unit 50 .

However, in the example shown in FIG. 7 , even when the expanded pixel area 25 is enlarged, it is not necessary to change the size of the projection lens unit 50 by adjusting the curvature of the third microlens 53 or the like. Thereby, it becomes possible to display the expanded image 20 large as it is with a projection lens of a predetermined size.

In addition, in the example shown in Fig. 7, since the expanded pixel light is not incident on the projection lens in the same direction as the effective pixel light by the second microlens 52, the effective image 10 and the expanded image 20 are Due to variations in the design of this optical system, a part of the effective image 10 and the extended image 20 may overlap.

In this case, as an example of a method of preventing the overlapping of the effective image 10 and the extended image 20, the effective pixel 16 or the extended pixel 26 of the overlapping portion is displayed in black, and the LCD 310 A method of emptying the space between the effective pixel 16 and the expansion pixel 26 is exemplified.

Thereby, the overlapping of the effective image 10 and the extended image 20 is prevented, and high-quality image display becomes possible.

In the example shown in FIG. 7 , the third microlens 53 functions as a part of the second projection unit that projects the second pixel light at a larger magnification than the first projection unit. In addition, the third microlens 53 functions as a magnifying lens unit for making at least a part of the expanded pixel light 27 incident on the projection lens unit 50 along a direction intersecting a predetermined direction.

In the example shown in FIG. 8, the 4th microlens 54 is arrange|positioned so that a part of the expanded pixel area|region 25 may be covered. Specifically, the fourth microlens 54 is disposed so as to cover the outer region 28 located on the opposite side to the central region 18 of the effective pixel region 15 . The outer region 28 can also be referred to as an edge-side region of the expanded pixel region 25 . The fourth microlens 54 is disposed on the optical path of the expanded pixel light 27 emitted from the expanded pixel 26 included in the outer region 28 .

As shown in FIG. 8 , the fourth microlens 54 makes the expanded pixel light 27 generated by the outer region 28 incident on the projection lens unit 50 along a direction intersecting a predetermined direction. make it In the present embodiment, on the front end side of the projection lens unit 50 , the expanded pixel light 27 is incident on the projection lens unit 50 so that the expanded pixel light 27 intersects.

This makes it possible to project the projected image 30 in which the expanded image 20 corresponding to the outer region 28 is further enlarged on the screen 60 . As a result, a more realistic image display is realized, and it becomes possible to provide a high-quality viewing experience. Further, it becomes possible to enlarge the expanded image 20 of the projected image 30 without enlarging the LCD 310, which is very advantageous for downsizing the device.

In the example shown in Fig. 8, since the expansion pixel light emitted from the expansion pixel 26 adjacent to the effective pixel 16 is vertically incident on the screen, it is possible to prevent the effective pixel light and the expansion pixel light from overlapping. becomes

In the example shown in Fig. 8, the fourth microlens 54 functions as a part of the second projection unit that projects the second pixel light at a larger magnification than the first projection unit. In addition, the fourth microlens 54 functions as a magnifying lens unit for making at least a part of the expanded pixel light 27 incident on the projection lens unit 50 along a direction intersecting a predetermined direction.

On the other hand, it is also possible to arrange the first microlens 51 and the second microlens 52 illustrated in FIG. 6 so as to cover only the outer region 28 . In this case, the first microlens 51 and the second microlens 52 enlarge the expanded pixel light 27 generated by the outer region 28, and the projection lens unit 50 along a predetermined direction. enter into This makes it possible to project the projected image 30 in which the expanded image 20 corresponding to the outer region 28 is further enlarged on the screen 60 .

In the example shown in FIG. 9, the 5th microlens 55 is arrange|positioned in each of the some expansion pixel 26 included in the expansion pixel area|region. That is, for one expansion pixel 26 , one fifth microlens 55 is disposed.

The plurality of fifth microlenses 55 make the expanded pixel light 27 emitted from each expanded pixel 26 incident on the projection lens unit 50 along a direction intersecting a predetermined direction. This makes it possible to project the projected image 30 in which the expanded image 20 is further enlarged on the screen 60 . For example, each of the plurality of fifth microlenses 54 may be designed to have a curvature according to the position of the arranged expansion pixel 26 . Thereby, it becomes possible to finely control the area of the expanded image 20, etc., and high-quality image display is implement|achieved.

As a difference between the example shown in FIG. 9 and the example shown in FIGS. 7 and 8 , since the fifth microlens 55 is used for each of the expansion pixels 26 , the fifth microlens 55 is applied for each expansion pixel 26 . It becomes possible to change the curvature. Thereby, the position of the extended image displayed on the screen 60 can be controlled.

In addition, in the example shown in FIG. 9, similarly to the example shown in FIG. 7, it may overlap due to the design deviation of an optical system. In this case, since the position at which the extended pixel light is projected can be controlled by each of the fifth microlenses 55 , the effective pixel light 17 and the extended pixel light 27 can be prevented from overlapping.

In addition, since the projected position of the extended pixel light 27 can be controlled, the effective pixel 16 or the extended pixel 26 in the overlapping portion is selected according to the distance between the image display device 500 and the screen 60 . Overlapping can be prevented by controlling.

Meanwhile, the types of lenses used for the first microlens 51 , the second microlens 52 , the third microlens 53 , the fourth microlens 54 , and the fifth microlens are not limited. For example, any lens such as a convex lens, a concave lens, and a liquid crystal lens may be used.

Also, the positions of the first microlens 51 , the second microlens 52 , the third microlens 53 , the fourth microlens 54 , and the fifth microlens are not limited. For example, it may be embedded in each pixel of the LCD 310 or attached to each pixel of the LCD 310 .

That is, the first microlens 51, the second microlens 52, the third microlens 53, the fourth microlens 54, and the fifth microlens are the effective images ( 10) and the extended image 20 may be configured to be of any kind or curvature so as to be projected on the object in different image states.

When the manufacturing process is considered, in the example shown in FIG. 6, it is easy to manufacture if the 1st microlens 51 is attached to each pixel of the LCD 310, and the 2nd microlens 52 is detached and arrange|positioned. In addition, in the example shown in FIG. 7, if the 3rd microlens 53 is attached to the LCD 310, it is easy to make. Furthermore, in the examples shown in Figs. 8 and 9, it is easy to manufacture if the fourth microlens 54 and the fifth microlens 55 are incorporated in the LCD 310. As shown in Figs.

A lens used when the first microlens 51, the second microlens 52, the third microlens 53, the fourth microlens 54, and the fifth microlens are embedded in the LCD 310 is an aspherical convex lens, a Fresnel lens based on a concave lens, or a diffractive lens. In the case of these lenses, the image display device 500 can be easily manufactured.

In the example shown in FIG. 9 , the fifth microlens 55 functions as a part of the second projection unit that projects the second pixel light at a larger magnification than the first projection unit. Further, the fifth microlens 55 functions as a magnifying lens unit for making at least a part of the expanded pixel light 27 incident on the projection lens unit 50 along a direction intersecting a predetermined direction.

As described above, in the image display device 500 according to the present embodiment, the effective pixel light 17 generated by the effective pixel area 15 and the expanded pixel light 27 generated by the expanded pixel area 25 are separated. The containing image light W2 is generated. Then, the image light W2 is projected so that the image state of the effective image 10 constituted by the effective pixel light 17 is different from the image state of the expanded image 20 constituted by the expanded pixel light 27 . do. Thereby, high-quality image display becomes possible.

In the case of performing image display with a sense of reality, for example, a large screen and high resolution by blending multiple projectors, or using a specially designed lens for one projector to display at medium resolution at the center and low resolution at the periphery have. On the other hand, in the case of a projector using a plurality of projectors or specially designed lenses, the cost increases.

Accordingly, in the present technology, low-resolution peripheral pixels are added to the effective pixel area of the display panel of one projector. The added peripheral pixels are set to have a lower resolution equal to or less than the pixel size of the effective pixel. In addition, you may design a microlens so that the peripheral pixel may spread to the outer periphery.

That is, in the projection image projected on the screen, the effective image displayed in the center is widened by the expansion pixel, and the user's field of view is filled with the image. As a result, it becomes possible to realize a projection image with a high resolution in the center and low resolution in the periphery with a single projector using an existing lens at low cost. Thereby, high-quality image display becomes possible.

In the display device described in Patent Document 1 described above, the peripheral display area PA included in the display area AA in the display panel PNL becomes higher in definition as it approaches the frame area PF direction. That is, the pixel density of the peripheral display area PA increases as the distance from the central display area CA increases.

Moreover, in the display device of patent document 1, the transparent cover TC of a rectangular shape is arrange|positioned on the display panel PNL. The translucent cover TC has a flat plate part TCF and a lens part TCL provided on four sides of the translucent cover TC. The lens unit TCL refracts the high-definition image light of the peripheral display area PA toward the frame area PF to display a virtual image on the frame.

As the pixel density of the peripheral display area PA displayed on the frame is enlarged by the lens compared to the pixel density displayed on the central display area CA, the image quality deteriorates. In Patent Document 1, in order to correct this, the pixel density of the peripheral display area PA is made to be higher as it approaches the frame area PF direction. As described above, in Patent Document 1, a technique is disclosed for the important purpose of making the image quality of the image displayed on the central display area CA and the image displayed on the frame uniform.

That is, in Patent Document 1, according to the present technology, "image light such that the image state of the first partial image constituted by the first pixel light is different from the image state of the second partial image constituted by the second pixel light. There is no description or suggestion about the technical idea of "projecting a

<Second embodiment>

An image display apparatus of a second embodiment according to the present technology will be described. In the description after this, the description is omitted or simplified about the same parts as the configuration and operation of the image display device 500 described in the above embodiment.

10 is a schematic diagram showing an example of a circuit configuration of a pixel region of an LCD 318 according to a second embodiment of the present technology. In Fig. 10, the number of effective pixels 66 and expansion pixels 76 is shown to be small in order to simplify the illustration. Of course, the number of effective pixels and expansion pixels is not limited and may be set arbitrarily.

In this embodiment, the pixel pitch of the expansion pixel 76 is designed to be equal to the pixel pitch of the effective pixel 66 . When the pixel pitches of the effective pixel 66 and the extended pixel 76 are equal to each other, the wiring such as the gate line 312 and the source line 316 can have a simple structure, so that it can be easily manufactured.

In the present embodiment, by appropriately designing and arranging the projection lens unit 50 , microlens, or the like, the image state of the effective image 10 constituted by the effective pixel light 17 is changed to the expanded pixel light 27 . It is possible to project the image light W2 so as to be different from the image state of the extended image 20 constituted by For example, it is possible to employ|adopt the structure etc. illustrated in FIGS. 6-9. Of course, other configurations may be employed.

<Third embodiment>

11 is a schematic diagram showing an example of a circuit configuration of a pixel region of an LCD 319 according to a third embodiment of the present technology. In Fig. 11, the number of effective pixels 67 and expansion pixels 86 is shown to be small in order to simplify the illustration. Of course, the number of effective pixels 67 and expansion pixels 86 is not limited and may be set arbitrarily.

The LCD 319 includes a plurality of effective pixels 67, a plurality of expansion pixels 86, a gate driver 311L, a gate driver 311R, a source driver 315T, and a source driver 315B. and a plurality of gate lines 312 and a plurality of source lines 316 .

Corresponding to each effective pixel 67 and each expansion pixel 86, a gate line and a source line are arranged. In the example shown in Fig. 11, with respect to the effective pixel 67 and the extended pixels 86 arranged on the same gate line and source line as the effective pixel 67, the gate lines 1a and 1b to 6a and 6b, the source lines 1a and It is possible to use any one of 1b to 6a and 6b as the gate line and the source line.

In addition, in the example shown in Fig. 11, any one of the gate lines T1 to T4 and the gate lines B1 to B4 is used as the gate line for the expansion pixel 86 arranged at the four corners of the LCD 319. it is possible Further, for the expansion pixel 86 arranged at the four corners of the LCD 319, it is possible to use any one of the source lines L1 to L4 and the source lines R1 to R4 as the source line.

In this embodiment, the pixel pitch of the expansion pixel 76 is designed to be smaller than the pixel pitch of the effective pixel 67 . That is, the density of pixels arranged in the expanded pixel region 25 is increased.

As a result, the pixel pitch of the expansion pixels 86 is arranged narrowly, thereby making it possible to reduce the size of the entire LCD 319 . That is, the cost reduction at the time of manufacturing the image display apparatus 500 becomes possible.

In the present embodiment, by appropriately designing and arranging the projection lens unit 50 , microlens, or the like, the image state of the effective image 10 constituted by the effective pixel light 17 is changed to the expanded pixel light 27 . It is possible to project the image light W2 so as to be different from the image state of the extended image 20 constituted by For example, it is possible to employ the configuration or the like illustrated in Figs. 6 to 9 . Of course, other configurations may be employed.

When the LCD 319 is used in the image display device 500, any one of the examples shown in Figs. 6 to 9 is used as the projection method. Thereby, the resolution of the projected extended image becomes lower than the resolution of the effective image.

In the present technology, the resolution of the expanded image 20 emitted from the expanded pixel 86 may be lower than that of the effective image 10 displayed in the center because it is assumed to be included in the user's peripheral field of view. That is, even if the extended image 20 has a low resolution that is blurred due to out-of-focus, the user can sufficiently experience a sense of presence as if surrounded by the image.

In addition, in the present technology, the reason that the pixel pitch of the expansion pixel 86 is arranged to be narrower than the pixel pitch of the effective pixel 67 arranged at the center is that the narrower the pixel pitch of the expansion pixel 86, the more light is emitted. One in which control of the position of the extended pixel light projected on the screen 60 can be performed finely is mentioned.

That is, in the present technology, as in the example shown in FIG. 9 , the pixel of the expansion pixel 86 is controlled as a method for preventing the effective image 10 and the expansion image 20 from overlapping by controlling the position at which the expanded pixel light is projected. They are arranged so that the pitch is narrower than the pixel pitch of the effective pixels 67 . Thereby, it becomes possible to display a high-quality image which does not impair the user's sense of presence.

On the other hand, typically, the projection image 30 is displayed in which the resolution of the extended image is lower than the resolution of the effective image. It is not limited to this, and the projection image 30 whose resolution of an extended image is higher than the resolution of an effective image may be displayed depending on a use etc. For example, in this embodiment, the structure illustrated in FIG. 5 may be employ|adopted.

[Another example of pixel configuration]

12 to 15 are schematic diagrams showing another example of the pixel configuration of the LCD 310 .

In the example shown in FIGS. 12 to 14 , in the effective pixel area 131 , a plurality of effective pixels are arranged at equal pixel pitches. For example, the effective pixel 130 may have arbitrary pixel structures, such as WUXGA (Wide Ultra Extended Graphics Array), WQXGA (Wide Quad Extended Graphics Array), and 4k.

A plurality of types of expansion pixels 140 having different pixel sizes are disposed in the expansion pixel area 141 around the effective pixel area 131 . Meanwhile, the pixel size of the expansion pixel 140 is set based on the pixel size of the effective pixel 130 . Thereby, it is possible to aim at the simplification of a circuit structure and a manufacturing process.

In the example shown in FIG. 12 , the pixel regions of the LCD 310 are divided by straight lines 132 to 135 extending four sides of the effective pixel region 131 . Furthermore, the pixel area of the LCD 310 is divided by straight lines 132 to 135 that divide the effective pixel area 131 into a total of 16 effective pixels 130 of 4x4 as one unit. Expansion pixels 142 having a pixel size corresponding to the regions divided by these straight lines 132 to 135 are respectively arranged.

According to the pixel configuration shown in FIG. 12 , the extended image 20 is displayed at a resolution lower than that of the effective image 10 in the regions adjacent to the top, bottom, left, and right of the effective image 10 . Then, in the four corners of the projected image 30, the extended image 20 with the lowest resolution is displayed.

In the example shown in FIG. 13 , the pixel size of the expansion pixel 145 may be arranged so as to increase further away from the center of the effective pixel region 131 . That is, in the extended pixel 145 , the position adjacent to the effective pixel area 131 is the most minutely arranged. This makes it possible to finely control the effective pixel region 131 and the adjacent extended pixel 145, and prevent the effective image 10 and the extended image 20 from overlapping.

Moreover, in the example shown in FIG. 13, the extended image 20 with a comparatively high resolution is displayed in the part adjacent to the effective image 10, and the resolution of the extended image 20 is displayed so that it may become low toward the outside.

In the example shown in FIG. 14, the division is more finely divided in the vicinity of the effective pixel area 15 than in the example shown in FIG. An extended image 20 having a relatively high resolution is displayed in an adjacent portion of the effective image 10, and the resolution becomes lower toward the outside.

In this way, a plurality of types of expansion pixels 140 having different pixel sizes may be disposed. In this configuration, the pixel pitch of the extended pixel region 141 can be defined by, for example, the average value of the pixel pitch between pixels adjacent to each other. For example, when the average of the pixel pitch of the extended pixel region 141 is small compared to the pixel pitch of the effective pixel 130 , it is said that the pixel pitch of the extended pixel 140 is smaller than the pixel pitch of the effective pixel 130 . It is also possible Of course, the pixel pitch may be defined by other parameters.

On the other hand, in the pixel configuration illustrated in FIGS. 12 to 14 , the resolution of the displayed extended image 20 is highly likely not to become uniform throughout the extended image. Even in this case, for example, it is possible to define the resolution of the expanded image 20 based on the density of the expanded pixels 140 included in the expanded pixel area 141 . Of course, the resolution of the image may be defined by other parameters.

There may be cases in which the pixel pitch of the effective pixels 130 is not uniform or the resolution of the effective image 10 is not uniform throughout the image. Even in such a case, it is possible to define a pixel pitch, a resolution, etc. using the average of pixel pitch, the density of a pixel, etc.

The example shown in FIG. 15 is an example of the method of preventing the effective image 10 and the extended image 20 of the projection image 30 from overlapping.

The space 150 is a region through which wiring for constituting the circuit diagram passes and light is blocked. Each pixel light emitted from the effective pixel 130 and the extended pixel 145 is separated from the effective image 10 and the extended image 20 by the projection lens unit 50 or the first microlens 51 or the like. Project so that it is not empty.

As an example of a method of preventing the effective image 10 and the extended image 20 from overlapping in this way, the effective pixel area 131 and the extended pixel ( For example, forming the space 150 between the 145 .

On the other hand, the pixel size and the number of pixels of the effective pixel 130 and the extended image 145 are not limited. For example, the pixel size of the effective pixel 130 may be a size not divisible by the pixel size of the expansion pixel 145 . In this case, the expansion pixel 145 is arranged at an arbitrary position.

In addition, for the space 150, black display pixels may be used. For example, as the effective pixel 130 or the expansion pixel 145 , a pixel for performing black display with a predetermined number of pixels may be arranged in the area corresponding to the space 150 .

In the present embodiment, the space 150 corresponds to a non-generation region in which pixel light is not generated between the first pixel region and the second pixel region.

<Other embodiments>

The present technology is not limited to the embodiment described above, and other various embodiments can be realized.

16 to 20 are schematic diagrams showing a configuration example of an image display device according to another embodiment. 16 is a schematic diagram of an image display device 900 of a three-plate system using a reflective display panel. The white light W1 emitted from the light source device 600 is separated into each light of RGB, and is incident on the reflective display panels 701R, 701G, and 701B for RGB.

The red image light R1, green image light G1, and blue image light B1 generated by the reflective display panel 701 are synthesized and projected as full-color image light W2. projected by system 800 . As the reflective display panel 701, for example, a reflective LCD, a digital micromirror device (DMD), or the like may be used.

It is possible to apply the present technology to the image display apparatus 900 of the three-plate system using such a reflective display panel. For example, by using the RGB reflective display panels 701R, 701G, and 701B as the image generating unit according to the present technology, an effective pixel area and an extended pixel area are respectively set. Then, the image light W2 is projected so that the image state of the effective image constituted by the effective pixel light is different from the image state of the extended image constituted by the expanded pixel light. Of course, the various pixel configurations described above, microlenses, and the like may be suitably used.

17 is a schematic diagram of an image display device 950 of a three-plate system using a self-luminous display panel. A red image light R1, a green image light G1, and a blue image light B1 are generated by the RGB self-luminous display panels 911R, 911G, and 911B. Images of RGB colors are optically synthesized and projected by the projection system 930 as full-color image light W2. As the self-luminous display panel 911 , for example, an organic EL (Organic Electro Luminescence) panel or the like is used.

It is possible to apply the present technology to the image display device 950 of the three-plate system using such a self-luminous display panel. For example, by using the self-luminous display panels 911R, 911G, and 911B for RGB as the image generating unit according to the present technology, an effective pixel area and an extended pixel area are respectively set. Then, the image light W2 is projected so that the image state of the effective image constituted by the effective pixel light is different from the image state of the extended image constituted by the expanded pixel light. Of course, the various pixel configurations described above, microlenses, and the like may be suitably used.

18 is a schematic diagram of an image display device of a single-panel system using a transmissive display panel. The image display device 1000 has a projection optical system for expressing colors using a color wheel 1020 . In the image display apparatus 1000 , the red image light R1 , the green image light G1 , and the blue image light B1 are projected by the projection system 930 in a time division manner.

It is possible to apply the present technology to the image display apparatus 1000 of the one-plate system using such a reflective display panel. For example, using the reflective display panel as the image generating unit according to the present technology, an effective pixel area and an extended pixel area are respectively set. Then, the image light of each color of RGB is projected in a time division manner so that the image state of the effective image constituted by the effective pixel light and the image state of the extended image constituted by the extended pixel light are different. Of course, the various pixel configurations described above, microlenses, and the like may be suitably used.

19 is a schematic diagram of an image display apparatus of a single-panel system using a transmissive display panel having a built-in color filter. White light W1 is incident on the display panel 1031 . For one pixel of the display panel 1031, RGB sub-pixels are configured. Light of each color of RGB passing through the color filter in the sub-pixel of RGB is modulated, and the full-color image light W2 is projected by the projection system 930 .

For such an image display device 1030, it is possible to apply the present technology. For example, using a transmissive display panel including RGB sub-pixels as the image generating unit according to the present technology, an effective pixel area and an extended pixel area are respectively set. In this case, an effective pixel area and an extended pixel area are set with one pixel constituted by RGB sub-pixels as a unit.

The image state of the effective image constituted by the effective pixel light (light generated by the RGB sub-pixels of the effective pixel) and the expansion constituted by the expanded pixel light (the light generated by the RGB sub-pixels of the expanded pixel) Full-color image light is projected so that the image state of the image is different. Of course, the various pixel configurations described above, microlenses, and the like may be suitably used.

Meanwhile, a specific configuration of the sub-pixels constituting one pixel is not limited. In addition to RGB, sub-pixels of W may be provided. In addition, a plurality of sub-pixels of the same color may be provided. In either case, it is possible to apply the present technology to one pixel constituted by sub-pixels as a unit.

Fig. 20 is a schematic diagram of an image display apparatus of a single-plate system using a self-luminous display panel. For one pixel of the display panel 1041, RGB sub-pixels are configured. Image light of each color of RGB is generated by the sub-pixels of RGB, and full-color image light W2 is projected by the projection system 930 . A configuration capable of emitting image light of each color of RGB may be used, or image light of each color of RGB may be generated through a color filter.

For such an image display device 1040, it is possible to apply the present technology. For example, an effective pixel area and an extended pixel area are respectively set by using a self-luminous display panel including RGB sub-pixels as the image generating unit according to the present technology. In this case, an effective pixel area and an extended pixel area are set with one pixel constituted by RGB sub-pixels as a unit.

The image state of the effective image constituted by the effective pixel light (light generated by the RGB sub-pixels of the effective pixel) and the expansion constituted by the expanded pixel light (the light generated by the RGB sub-pixels of the expanded pixel) Full-color image light is projected so that the image state of the image is different. Of course, the various pixel configurations described above, microlenses, and the like may be suitably used.

Fig. 21 is a schematic diagram showing an example of a circuit in the case where the pixels for displaying the projected image are RGB 3 pixels. The LCD 1050 is an example of the LCD 1031 or the LCD 1041 .

As shown in FIG. 21 , the LCD 1050 has a plurality of effective pixels 1060 and a plurality of expansion pixels 1070 . The plurality of expansion pixels 1070 are arranged such that the pixel pitch is wider than that of the effective pixels 1060 , similarly to the LCD 310 of FIG. 4 .

The plurality of effective pixels 1060 includes an R effective pixel capable of emitting red light, a G effective pixel capable of emitting green light, and a B effective pixel capable of emitting blue light. Further, the plurality of effective pixels 1060 are arranged along the H direction in the order of R effective pixels, G effective pixels, and B effective pixels. Effective pixels of each color are arranged along the V direction.

Similarly, the plurality of expansion pixels 1070 include an R expansion pixel 1071 capable of emitting red light, a G expansion pixel 1072 capable of emitting green light, and a B expansion pixel 1073 capable of emitting blue light. have The R expansion pixel 1071 , the G expansion pixel 1072 , and the B expansion pixel 1073 are arranged in the order of RGB along the H direction, and are arranged for each expansion pixel along the V direction.

The effective image and the extended image projected on the to-be-projected object emit images of various colors by the effective pixel and extended pixel of each color. As a result, a full-color projection image is projected on the target object.

In the present embodiment, the effective pixel and the extended pixel of each color have the same pixel size ratio for ease of chromaticity adjustment. Of course, the present invention is not limited thereto, and when it is desired to give priority to luminance, the pixel sizes of the G effective pixel and the B expansion pixel 1073 capable of emitting green light may be increased. In addition, for example, when it is desired to give priority to chromaticity, it is good also as a size ratio of the pixel of each color matched with the chromaticity to be emphasized. Further, for example, when the brightness is given priority, RGBW 4 pixels in which white (W) light is added to RGB may be used.

Also in the RGB 3-pixel LCD 1050, the projected image 30 is projected by using the examples shown in Figs. That is, image light including the effective pixel light generated by the effective pixel 1060 and the expanded pixel light generated by the expansion pixel 1070 is generated, and the effective image and the expanded image are projected on a screen with different resolutions.

In the above embodiment, the projection image 30 was generated and projected by one image display device 500 . It is not limited to this, and the projection image may be generated and projected by a plurality of image display apparatuses.

22 is a schematic diagram showing blending of a projected image. In FIG. 22 , axes (dotted lines) indicating the H direction and the V direction are described for convenience of explanation. The direction of the arrow is called the positive direction, and the intersection of the H-axis and the V-axis is the origin.

As shown in Fig. 22, the four image display apparatuses 500a, 500b, 500c, and 500d include projection images 1250a, 1250b, 1250c, and 1250d) is projected on a screen (not shown). In addition, two sides of each of the projection images 1250a, 1250b, 1250c, and 1250d are in contact with the H-axis and the V-axis. That is, the projection images 1250a, 1250b, 1250c, and 1250d are projected on the screen, whereby the projection image 1300 representing one image is displayed.

The projected image 1250a is arranged in a region between the negative direction of the H-axis and the positive direction of the V-axis. The projected image 1250a includes an effective image 1100a projected to a position including the origin, and an expanded image 1200a disposed adjacent to the negative H-axis direction and the positive V-axis direction of the effective image 1100a. have

The expanded image 1200a is an image in which the effective image 1100a is enlarged in the negative direction of the H-axis direction and the positive direction of the V-axis direction. That is, the resolution of the extended image 1200a is projected to be lower than the resolution of the effective image 1100a.

Similarly, the projected image 1250b is arranged in a region of the negative direction of the H-axis direction and the negative direction of the V-axis direction. The projected image 1250b includes an effective image 1100b projected at a position including the origin, and an extended image 1200b disposed adjacent to the negative H-axis direction and the negative V-axis direction of the effective image 1100b. have

The projected image 1250c is arranged in a region between the positive direction of the H-axis direction and the negative direction of the V-axis direction. The projected image 1250c includes an effective image 1100c projected to a position including the origin, and an extended image 1200c disposed adjacent to the positive H-axis direction and the negative V-axis direction of the effective image 1100c. have

The projected image 1250d is arranged in a region between the H-axis direction positive direction and the V-axis direction positive direction. The projected image 1250d includes an effective image 1100d projected to a position including the origin, and an extended image 1200d disposed adjacent to the H-axis direction and V-axis direction positive directions of the effective image 1100d. have

The four image display devices 500a, 500b, 500c, and 500d perform blending in areas in contact with the H-axis and V-axis of the projected images 1250a, 1250b, 1250c, and 1250d. Blending is a technique of correcting so that the seams of the areas in contact with each image or the overlapping areas of the plurality of images are not conspicuous. As a result, the projection images 1250a, 1250b, 1250c, and 1250d are recognized by the user as the projection image 1300 which is one image. Thereby, a larger image is projected on the screen, and a sense of presence as if surrounded by an image can be experienced.

That is, in the example shown in FIG. 22, the projection image 1300 of which the center is high definition and the periphery is low resolution is projected by four image display apparatuses. In this case, an effective pixel area and an extended pixel area of the LCD are also set.

In addition, the correction of the projection image performed by the image display apparatus 500 is not limited. For example, the luminance or color tone of the projected images 1250a, 1250b, 1250c, and 1250d may be corrected. Further, for example, in the case of a curved screen such as a dome-shaped or multi-faceted screen, the distortion of the projected images 1250a, 1250b, 1250c, and 1250d may be corrected according to the displayed area.

In the above embodiment, as the expanded image 20, an enlarged image of the effective image 10 was used. It is not limited to this, and various images may be used as the extended image 20. As shown in FIG. For example, image data in which the expanded image 20 was originally prepared for the image projected by the projector may be used. That is, in a television etc. which do not have the function of the image display apparatus 500, only the effective image 10 is displayed on the display, and in the projector which has the function of the image display apparatus 500, the effective image 10 and the extended image ( 20) may be projected.

In addition, the extended image 20 may be generated by performing image analysis before and after the projected image of a specific time. For example, in the case of an image in which the character is running from right to left, the background of the image in the past may be used as the extended image on the right side of the screen rather than the image in which the character is currently running. That is, for the left extended image, a background image (future image) of a place where the character runs forward and exits is used, and for the right extended image, a background image of a place where the character runs and exits is used.

In the projection optical system described in Figs. 1, 16 and 17, a method in which three LCDs are used was used. It is not limited to this, and a DMD (Digital Mirror Device) may be used instead of an LCD. Since DMD has little aging deterioration compared with LCD, reliability is high, and long-term use becomes possible. Moreover, since the number of components which comprise the image display apparatus 500 can be suppressed, weight reduction and size reduction are attained.

In addition to the LCD used in the above embodiment, LCOS (Liquid Crystal On Silicon) may be used. In this case, it becomes possible to project a high-definition projection image rather than an image display device using an LCD.

In the above embodiment, the image display device 500 is disposed directly in front of the screen 60 . That is, the image display apparatus 500 is arranged so that the projected image 30 to be projected is incident perpendicularly to the screen 60 . It is not limited to this, and the image display apparatus 500 may be arrange|positioned arbitrarily as long as it is a position where the projection image 30 can be projected on the screen 60. As shown in FIG.

In this case, the image display apparatus 500 may perform various corrections based on the position and orientation arranged with respect to the to-be-projected object. For example, when the projected image 30 is incident obliquely with respect to the screen 60 , the image display device 500 may correct the paper or lateral trapezoidal distortion of the effective image 10 . In addition, since the image display apparatus 500 may have a low resolution of the extended image 20, it is not necessary to correct the trapezoidal distortion of the extended image 20. As shown in FIG. Of course, the trapezoidal distortion of the expanded image 20 may be corrected.

In addition, the image display device 500 may automatically control the effective image 10 to be in focus. Further, the image display device 500 may be controlled so as to project at a screen aspect ratio suitable for the projected image 30 . In addition, the image display apparatus 500 may control the area when the projection image 30 is projected based on the size (area) of the screen 60 .

In the present disclosure, "equal", "same", "uniform", "center", "center", "vertical", "parallel", etc. are "substantially equivalent", "substantially the same", " A concept including "substantially uniform", "substantially centered", "substantially central", "substantially perpendicular", "substantially parallel", and the like.

For example, "completely equal", "completely identical", "perfectly uniform", "perfectly centered", "perfectly centered", "perfectly perpendicular", "perfectly parallel", etc. , within the range of ±10%) is also included. Accordingly, a concept such as "approximately equal" becomes a concept included in "equal to" and the like.

In addition, the effect described in this indication is an illustration to the last, It is not limited, Another effect may exist. The description of the plurality of effects does not mean that those effects are necessarily exhibited at the same time. It means that at least any one of the above-described effects is obtained depending on conditions and the like, of course, there is a possibility that effects not described in the present disclosure may be exhibited.

It is also possible to combine at least two characteristic parts among the characteristic parts of each aspect demonstrated above. That is, the various characteristic parts demonstrated in each embodiment may be combined arbitrarily, without distinction of each embodiment.

On the other hand, the present technology can also take the following configuration.

(1) generating image light having a first pixel area and a second pixel area, the image light including first pixel light generated by the first pixel area and second pixel light generated by the second pixel area; an image generator;

an image including a projection optical system for projecting the image light such that an image state of a first partial image constituted by the first pixel light is different from an image state of a second partial image constituted by the second pixel light; display device.

(2) The image display device according to (1), comprising:

The first pixel area is a central area located in the center of the image generating unit,

The second pixel area is a peripheral area surrounding the periphery of the central area.

(3) The image display device according to (1) or (2),

The image state includes the resolution of the image,

and the projection optical system projects the image light so that a resolution of the first partial image is different from a resolution of the second partial image.

(4) The image display device according to any one of (1) to (3),

and the projection optical system projects the image light so that a resolution of the second partial image is lower than a resolution of the first partial image.

(5) The image display device according to any one of (1) to (4),

and a pixel pitch of the first pixel region is different from a pixel pitch of the second pixel region.

(6) The image display device according to any one of (1) to (5),

A pixel pitch of the second pixel area is greater than a pixel pitch of the first pixel area.

(7) The image display device according to any one of (1) to (4),

and a pixel pitch of the first pixel region is equal to a pixel pitch of the second pixel region.

(8) The image display device according to any one of (1) to (7),

The projection optical system includes a first projection unit for projecting the first pixel light and a second projection unit for projecting the second pixel light.

(9) The image display device according to (8), comprising:

The first projection unit projects the first pixel light at a predetermined magnification,

The second projection unit projects the second pixel light with a larger magnification than the first projection unit.

(10) The image display device according to (8), comprising:

The first projection unit projects the first pixel light at a predetermined magnification,

The second projection unit projects the second pixel light at the same magnification as that of the first projection unit.

(11) The image display device according to any one of (1) to (10),

The projection optical system includes a projection lens unit for projecting the image light incident along a predetermined direction along a predetermined optical axis direction.

(12) The image display device according to (11),

and the projection optical system has a magnifying lens unit for magnifying at least a portion of the second pixel light and making it incident on the projection lens unit along the predetermined direction.

(13) The image display device according to (12), comprising:

The first pixel area is a central area located in the center of the image generating unit,

the second pixel region is a peripheral region surrounding the periphery of the central region;

The magnifying lens unit magnifies the pixel light generated by an outer region positioned opposite to the central region of the second pixel region among the second pixel lights to be incident on the projection lens unit along the predetermined direction. , an image display device.

(14) The image display device according to (11), comprising:

and the projection optical system includes a magnifying lens unit for making at least a part of the second image light incident on the projection lens unit along a direction intersecting the predetermined direction.

(15) The image display device according to (14),

The first pixel area is a central area located in the center of the image generating unit,

the second pixel region is a peripheral region surrounding the periphery of the central region;

The magnifying lens unit may include the projection lens unit in a direction intersecting the predetermined direction with the pixel light generated by an outer region positioned on the opposite side to the central region of the second pixel region among the second pixel lights. An image display device to be incident.

(16) The image display device according to any one of (12) to (15),

The magnifying lens unit may include a plurality of microlenses disposed in each of a plurality of pixels included in the second pixel area.

(17) The image display device according to (16),

Each of the plurality of microlenses has a curvature according to a position of an arranged pixel.

(18) The image display device according to any one of (1) to (17),

The image generating unit includes a non-generation region in which pixel light is not generated between the first pixel region and the second pixel region.

10: Effective image
15: effective pixel area
20: Extended image
25: expanded pixel area
30: Projection image
50: projection lens unit
51: first microlens
52: second microlens
53: third microlens
54: fourth microlens
55: fifth microlens
150: space
310: LCD
400: projection system
500: image display device

Claims (18)

An image generating unit having a first pixel area and a second pixel area and generating image light including first pixel light generated by the first pixel area and second pixel light generated by the second pixel area Wow,
a projection optical system for projecting the image light so that an image state of a first partial image constituted by the first pixel light is different from an image state of a second partial image constituted by the second pixel light; image display device. According to claim 1,
The first pixel area is a central area located in the center of the image generating unit,
and the second pixel area is a peripheral area surrounding the periphery of the central area. According to claim 1,
The image state includes the resolution of the image,
and the projection optical system projects the image light so that a resolution of the first partial image is different from a resolution of the second partial image. According to claim 1,
and the projection optical system projects the image light so that a resolution of the second partial image is lower than a resolution of the first partial image. According to claim 1,
and a pixel pitch of the first pixel region is different from a pixel pitch of the second pixel region. According to claim 1,
and a pixel pitch of the second pixel region is larger than a pixel pitch of the first pixel region. According to claim 1,
and a pixel pitch of the first pixel region is equal to a pixel pitch of the second pixel region. According to claim 1,
and the projection optical system has a first projection unit for projecting the first pixel light and a second projection unit for projecting the second pixel light. 9. The method of claim 8,
The first projection unit projects the first pixel light at a predetermined magnification,
and the second projection unit projects the second pixel light with a larger magnification than the first projection unit. 9. The method of claim 8,
The first projection unit projects the first pixel light at a predetermined magnification,
and the second projection unit projects the second pixel light with a magnification equal to that of the first projection unit. According to claim 1,
and the projection optical system has a projection lens unit that projects the image light incident along a predetermined direction along a predetermined optical axis direction. 12. The method of claim 11,
and the projection optical system has a magnifying lens unit for magnifying at least a portion of the second pixel light and making it incident on the projection lens unit along the predetermined direction. 13. The method of claim 12,
The first pixel area is a central area located in the center of the image generating unit,
the second pixel region is a peripheral region surrounding the periphery of the central region;
The magnifying lens unit magnifies the pixel light generated by the outer region located on the opposite side to the central region of the second pixel region among the second pixel lights to be incident on the projection lens unit along the predetermined direction , an image display device. 12. The method of claim 11,
and the projection optical system has a magnifying lens unit for making at least a part of the second image light incident on the projection lens unit along a direction intersecting the predetermined direction. 15. The method of claim 14,
The first pixel area is a central area located in the center of the image generating unit,
the second pixel region is a peripheral region surrounding the periphery of the central region;
The magnifying lens unit may include the projection lens unit in a direction that intersects the predetermined direction with the pixel light generated by an outer region positioned opposite to the central region of the second pixel region among the second pixel lights. An image display device that makes it incident. 13. The method of claim 12,
The magnifying lens unit has a plurality of microlenses disposed in each of a plurality of pixels included in the second pixel region. 17. The method of claim 16,
Each of the plurality of microlenses has a curvature according to a position of an arranged pixel. According to claim 1,
and the image generating unit includes a non-generation region in which pixel light is not generated between the first pixel region and the second pixel region.

Images