JP2022024294A - Image light generation module and image display device - Google Patents

Abstract

To provide an image light generation module with which it is possible to suppress a decrease in display quality attributable to jaggy.SOLUTION: An image light generation module pertaining to the present invention comprises a first panel, a second panel, a third panel, a color synthesizing prism, and a control unit. Each of the first, second and third panels has a pixel region that includes a plurality of pixels arranged in matrix form, the pixels of at least one of the first, second and third panels having a plurality of subpixels arranged in matrix form. The control unit controls the grayscale of pixels of at least one of the panels on the basis of image signals supplied to the at least one of the panels and controls turn-on/turn-off of each of the plurality of subpixels.SELECTED DRAWING: Figure 3

Description

The present invention relates to an image light generation module and an image display device.

In an image display device such as a head-mounted display or a projector, an image light generation module including a plurality of panels that emit colored light of different colors and a color synthesizing element that synthesizes a plurality of colored lights has been conventionally known. For example, in Patent Document 1 below, a liquid crystal panel for blue light, a liquid crystal panel for green light, a liquid crystal panel for red light, and a dichroic prism that synthesizes blue light, green light, and red light emitted from each liquid crystal panel. A projector including a projection unit having the above is disclosed.

In Patent Document 1, as a method of correcting the positional deviation of pixels of different colors from each other, a pixel shift correction for shifting the position of a pixel in a display target image with respect to an image signal of the pixel supplied to a plurality of optical modulation means is performed. It is disclosed that the image is corrected for the positional deviation of the display position of the pixels constituting the image of each color component displayed on the display surface with respect to the reference position.

Japanese Unexamined Patent Publication No. 2018-124423

However, in the method of Patent Document 1, although the pixel shift correction in the vertical direction or the horizontal direction of the display element is possible, the pixel position shift occurs when the panel is rotated in a plane parallel to the display surface. Is difficult to correct. That is, when correcting the position shift of the pixel due to the rotation of the panel, it is necessary to make the correction so that the light emitting area is tilted diagonally with respect to the rectangular pixel area of the panel. However, if the outer shape of the light emitting area is set to a rectangle and the image is displayed, the phenomenon that the straight line at the edge of the rectangle is displayed in a stepped shape after the correction, so-called jaggies, may occur and the display quality may deteriorate. ..

In order to solve the above problems, the image light generation module according to one aspect of the present invention includes a first panel that emits a first image light of a first color and a second color that is different from the first color. A second panel that emits two image lights, a third panel that emits a third image light of a third color different from the first color and the second color, and the first image light and the second image light. A color synthesis prism that synthesizes the third image light and the third image light, and a control unit that controls the first panel, the second panel, and the third panel are provided, and the first panel, the second panel, and the like. And each of the third panels has a pixel region containing a plurality of pixels arranged in a matrix, and the first panel, the second panel, and the third panel of at least one of the panels. The pixel has a plurality of sub-pixels arranged in a matrix, and the control unit has the gradation of the pixel based on the image signal supplied to the at least one panel with respect to the at least one panel. Is controlled, and the lighting / non-lighting of each of the plurality of sub-pixels is controlled.

Further, the image display device according to one aspect of the present invention includes an image light generation module according to one aspect of the present invention.

It is a schematic block diagram of the image light generation module of 1st Embodiment. It is sectional drawing which shows the schematic structure of the light emitting element of the 1st panel. It is a schematic block diagram of the 1st panel. It is a circuit block diagram of one pixel in a 1st panel. It is a schematic block diagram of the image light generation module in the 1st step of the rotation deviation correction method. It is a figure which shows the positional relationship of each panel in the 1st step of the rotation deviation correction method. It is a figure which shows the recognition image of the image light generation area by the control part in the 1st step of the rotation deviation correction method. It is a schematic block diagram of the image light generation module in the 2nd step of the rotation deviation correction method. It is a figure which shows the positional relationship of each panel in the 2nd step of the rotation deviation correction method. It is a figure which shows the recognition image of the image light generation area by the control part in the 2nd step of the rotation deviation correction method. It is a schematic block diagram of the image light generation module in the 3rd step of the rotation deviation correction method. It is a figure which shows the positional relationship of each panel in the 3rd step of the rotation deviation correction method. It is a figure which shows the recognition image of the image light generation area by the control part in the 3rd step of the rotation deviation correction method. It is a schematic block diagram of the image light generation module in the 4th step of the rotation deviation correction method. It is a figure which shows the positional relationship of each panel in the 4th step of the rotation deviation correction method. It is a figure which shows the recognition image of the image light generation area by the control part in the 4th step of the rotation deviation correction method. It is a schematic block diagram of the image light generation module in the 5th step of the rotation deviation correction method. It is a figure which shows the positional relationship of each panel in the 5th step of the rotation deviation correction method. It is a figure which shows the recognition image of the image light generation area by the control part in the 5th step of the rotation deviation correction method. It is a schematic block diagram of the image light generation module in the 6th step of the rotation deviation correction method. It is a figure which shows the positional relationship of each panel in the 6th step of the rotation deviation correction method. It is a figure which shows the recognition image of the image light generation area by the control part in the 6th step of the rotation deviation correction method. It is a figure which shows the position of the image light generation area in the 1st panel in the 7th step of the rotation deviation correction method. It is a figure which shows the lighting / non-lighting state of a plurality of sub-pixels at the edge of the image light generation area in the 7th step of the rotation deviation correction method. It is a figure which shows the position of the image light generation area in the 2nd panel in the 8th step of the rotation deviation correction method. It is a figure which shows the lighting / non-lighting state of a plurality of sub-pixels at the edge of the image light generation area in the 8th step of the rotation deviation correction method. It is a figure which shows the position of the image light generation area in the 3rd panel in the 9th step of the rotation deviation correction method. It is a figure which shows the lighting / non-lighting state of a plurality of sub-pixels in the edge part of the image light generation area in the 9th step of the rotation deviation correction method. It is a schematic block diagram of the head-mounted display device of 2nd Embodiment. It is a perspective view which shows typically the structure of the optical system of the virtual image display part. It is explanatory drawing which shows the optical path of an optical system. It is a schematic block diagram of the projection type display device of 3rd Embodiment.

[First Embodiment]
Hereinafter, the first embodiment of the present invention will be described with reference to the drawings.
In this embodiment, an example of an image light generation module that generates color image light by synthesizing image light emitted from three image light generation panels will be given.
FIG. 1 is a schematic configuration diagram of the image light generation module 10 of the present embodiment.
In each of the following drawings, in order to make each component easy to see, the scale of the dimensions may be different depending on the component.

In the image light generation module 10 of the present embodiment, three self-luminous panels made of an organic electroluminescence (EL) panel are used as the image light generation panel.

As shown in FIG. 1, the image light generation module 10 includes a first panel 11R, a second panel 11G, a third panel 11B, a dichroic prism 12 (color synthesis prism), and a control unit 13. There is. The control unit 13 controls the first panel 11R, the second panel 11G, and the third panel 11B.

The first panel 11R includes a first pixel region 14R including a plurality of pixels arranged in a matrix, and a first non-pixel region 15R surrounding the first pixel region 14R. The second panel 11G includes a second pixel region 14G including a plurality of pixels arranged in a matrix, and a second non-pixel region 15G surrounding the second pixel region 14G. The third panel 11B includes a third pixel region 14B including a plurality of pixels arranged in a matrix, and a third non-pixel region 15B surrounding the third pixel region 14B.

Each of the plurality of pixels in the first panel 11R has a plurality of sub-pixels, and each of the plurality of sub-pixels is provided with a first light emitting element 17R. Each of the plurality of pixels in the second panel 11G has a plurality of sub-pixels, and each of the plurality of sub-pixels is provided with a second light emitting element 17G. Each of the plurality of pixels in the third panel 11B has a plurality of sub-pixels, and each of the plurality of sub-pixels is provided with a third light emitting element 17B. The arrangement of the plurality of sub-pixels in each pixel will be described in detail later.

Each of the plurality of first light emitting elements 17R provided in the first pixel region 14R of the first panel 11R emits a red first image light LR. Further, each of the plurality of second light emitting elements 17G provided in the second pixel region 14G of the second panel 11G emits a green second image light LG. Further, each of the plurality of third light emitting elements 17B provided in the third pixel region 14B of the third panel 11B emits a blue third image light LB. In the present embodiment, each of the first light emitting element 17R, the second light emitting element 17G, and the third light emitting element 17B is composed of a top emission type organic EL element. That is, each of the first panel 11R, the second panel 11G, and the third panel 11B is composed of an organic EL panel.

Hereinafter, the configurations of the light emitting elements 17R, 17G, and 17B of the first panel 11R, the second panel 11G, and the third panel 11B will be described.
The first panel 11R, the second panel 11G, and the third panel 11B each have different constituent materials such as a light emitting layer and a charge injection layer made of an organic EL material, but the basic configuration of the panel is the same. Therefore, in the following, the basic configuration of the panel will be described as represented by the first panel 11R.

FIG. 2 is a cross-sectional view showing a schematic configuration of one first light emitting element 17R in the first panel 11R.
As shown in FIG. 2, the first light emitting element 17R includes a substrate 19, a reflecting electrode 20, an anode 21, a light emitting functional layer 22, a cathode 23, a sealing film 24, a color filter 25, and a cover glass. 26 and. Specifically, a reflective electrode 20, an anode 21, a light emitting functional layer 22, and a cathode 23 are provided on the first surface 19a of the substrate 19 in this order from the substrate 19 side. The substrate 19 is made of a semiconductor material such as silicon. The reflective electrode 20 is made of a light-reflecting conductive material containing, for example, aluminum, silver, and the like. More specifically, the reflective electrode 20 may be made of a single material such as aluminum or silver, or may be made of a laminated film of titanium (Ti) / AlCu (aluminum / copper alloy) or the like. good.

The anode 21 is made of a light-transmitting conductive material such as ITO (Indium Tin Oxide). Although the detailed configuration of the light emitting functional layer 22 is not shown in detail, the light emitting functional layer 22 is composed of a plurality of layers including a light emitting layer containing an organic EL material, a hole injection layer, an electron injection layer, and the like. The light emitting layer is made of a well-known organic EL material according to the light emitting color. The light emitted by the light emitting layer may be either fluorescence or phosphorescence.

The cathode 23 functions as a semi-transmissive reflective layer having a property of transmitting a part of light and reflecting the remaining light. The cathode 23 having semi-transmissive reflectivity can be realized by forming a light-reflecting conductive material such as an alloy containing silver and magnesium in a sufficiently thin film thickness. The light emitted from the light emitting functional layer 22 selectively amplifies a component having a specific resonance wavelength while reciprocating between the reflective electrode 20 and the cathode 23, passes through the cathode 23, and is opposite to the substrate 19. It is ejected to the side. That is, the optical resonator 27 is composed of a plurality of layers from the reflective electrode 20 to the cathode 23.

The plurality of layers from the reflective electrode 20 to the cathode 23 are covered with the sealing film 24. The sealing film 24 is a film for preventing the intrusion of outside air and moisture, and is composed of a single layer or a plurality of layers of a light-transmitting inorganic material and an organic material.

A color filter 25 corresponding to the emission color is provided on one surface of the sealing film 24. In the first panel 11R, the color filter 25 is composed of a light absorption type filter layer that absorbs light in a wavelength range other than the red wavelength range and transmits light in the red wavelength range. Further, the color filter 25 in the second panel 11G is composed of a light absorption type filter layer that absorbs light in a wavelength range other than the green wavelength range and transmits light in the green wavelength range. The color filter 25 in the third panel 11B is composed of a light absorption type filter layer that absorbs light in a wavelength range other than the blue wavelength range and transmits light in the blue wavelength range.

In the present embodiment, since each of the first panel 11R, the second panel 11G, and the third panel 11B includes the optical resonator 27, the light corresponding to each color is emitted by the resonance of the light at the resonance wavelength. Further, since the color filter 25 is provided on the light emitting side of the optical resonator 27, the color purity of the light LR, LG, and LB emitted from the panels 11R, 11G, and 11B is further enhanced. The color filter 25 may be omitted depending on the wavelength range of the light emitted from the light emitting functional layer 22.

A cover glass 26 for protecting each light emitting element is provided on one surface of the color filter 25.

FIG. 3 is a schematic configuration diagram showing the overall configuration of the first panel 11R.
As for the overall configuration of the panel, the basic configurations of the first panel 11R, the second panel 11G, and the third panel 11B are almost the same. Therefore, in the following, the overall configuration of the panel will be represented by the first panel 11R. explain.
In FIG. 3, the horizontal direction of the first panel 11R is the X direction, and the vertical direction of the first panel 11R is the Y direction.

As shown in FIG. 3, the first surface 19a of the substrate 19 is provided with a first pixel region 14R and a first non-pixel region 15R. Further, the first non-pixel region 15R is composed of a peripheral region 29 and a mounting region 30. The first pixel region 14R is a rectangular region in which a plurality of pixels PX are arranged in a matrix. In the first pixel region 14R, a plurality of scanning lines 31 extending in the X direction, a plurality of control lines 32 extending in the X direction corresponding to each scanning line 31, and a plurality of control lines 32 extending in the X direction in the Y direction intersecting the X direction. A plurality of extending signal lines 33 are provided. The pixel PX is a region corresponding to each intersection of the plurality of scanning lines 31 and the plurality of signal lines 33. Therefore, the plurality of pixels PX are arranged in a matrix in the X direction and the Y direction.

Structurally, the pixel PX includes a plurality of sets of components from the anode to the cathode corresponding to the plurality of light emitting elements that are turned on or off corresponding to the data for one pixel in the display image. Further, in terms of display, the pixel PX corresponds to a display area in which the data for one pixel in the display image is turned on or off.

Each of the plurality of pixels PX has a plurality of sub-pixels SPX arranged in a matrix. That is, if a group of sub-pixel SPXs arranged in the horizontal direction (X direction) is a row and a group of sub-pixel SPXs arranged in a vertical direction (Y direction) is a column, a plurality of sub-pixel SPXs are matrixed in m rows and n columns. It is arranged in a shape. However, m and n are integers of 2 or more. In the case of the present embodiment, one pixel PX has nine sub-pixel SPXs arranged in a matrix in 3 rows and 3 columns. However, the number of rows m and the number of columns n of the sub-pixel SPX are not particularly limited. Further, the number of rows m and the number of columns n may be the same or different from each other.

The sub-pixel SPX structurally corresponds to the data for one pixel in the display image, and has a set of components from the anode to the cathode corresponding to one light emitting element that is turned on or off as the minimum display unit. Includes. Further, in terms of display, the sub-pixel SPX corresponds to the data for one pixel in the display image, and corresponds to the area to be turned on or off as the minimum display unit.

Further, in the case of the present embodiment, the first panel 11R has a number of pixels PX in the first pixel region 14R that exceeds the number of pixels corresponding to the standard resolution of the image light generation module 10. Specifically, it is assumed that the standard resolution of the image light generation module 10 of the present embodiment is a resolution called HD, which is composed of, for example, 1280 pixels in the horizontal direction and 720 pixels in the vertical direction. In this case, the first panel 11R of the present embodiment has a number of pixels PX exceeding 1280 in the horizontal direction and a number of pixels PX exceeding 720 in the vertical direction. However, the specific number of pixels is not particularly limited. The standard resolution is not limited to the above HD and may be any other resolution as long as it is a resolution established as a standard for televisions and displays.

The peripheral region 29 is a rectangular frame-shaped region that surrounds the first pixel region 14R. The drive circuit 35 is provided in the peripheral region 29. The drive circuit 35 is a circuit that drives each pixel PX in the first pixel region 14R. The drive circuit 35 includes two scan line drive circuits 36 and a signal line drive circuit 37. The first panel 11R is a circuit-built-in panel in which the drive circuit 35 is composed of an active element such as a thin film formed on the first surface 19a of the substrate 19.

The mounting region 30 is provided on the side opposite to the first pixel region 14R with the peripheral region 29 interposed therebetween, that is, on the outside of the peripheral region 29. A plurality of mounting terminals 39 are provided in the mounting area 30. The control signal and the power supply potential are supplied to the mounting terminal 39 from various external circuits (not shown) including the control circuit, the power supply circuit, and the like. The external circuit is mounted on, for example, a flexible wiring board (not shown) joined to the mounting region 30.

FIG. 4 is a circuit configuration diagram of one pixel PX in the first panel 11R.
As shown in FIG. 4, the pixel PX includes a pixel control circuit 41 having a first control transistor TR1 and a plurality of second control transistors TR21 to TR29.

The first control transistor TR1 controls the amount of light emitted from the first light emitting element 17R corresponding to the gradation of the pixel PX based on the image signal supplied from the signal line 33. Further, each of the second control transistors TR21 to TR29 is electrically connected to the first control transistor TR1 and is provided corresponding to each of the plurality of sub-pixels SPX1 to SPX9. Therefore, in the present embodiment, nine second control transistors TR21 to TR29 are provided corresponding to the nine sub-pixels SPX1 to SPX9. The second control transistors TR21 to TR29 control lighting / non-lighting of each of the plurality of sub-pixels SPX1 to SPX9.

The control unit 13 controls the first control transistor TR1 and the plurality of second control transistors TR21 to TR29 in each of the plurality of pixels PX in each of the panels 11R, 11G, and 11B. As a result, the plurality of sub-pixel SPXs in one pixel PX are in either a state in which all of them are turned on, all of them are turned off, or some of them are turned on and the other part is turned off. Further, when at least a part of the plurality of sub-pixel SPXs is lit, the lit sub-pixels SPX emit light with the same amount of light emission. That is, the control unit 13 controls the gradation of the pixel PX for each panel 11R, 11G, 11B based on the image signal supplied to each panel 11R, 11G, 11B, and also controls the gradation of the pixel PX and the plurality of sub-pixels SPX. Control each lighting / non-lighting.

The control unit 13 may be, for example, a control circuit that transmits a control signal to the drive circuits 35 of the panels 11R, 11G, and 11B to control the display of the entire image light generation module 10, or may be a control circuit that controls the display of the entire image light generation module 10. Each panel 11R, 11G, 11B may be controlled by communicating between the drive circuits 35 of 11G, 11B. As a specific configuration example of the control unit 13, for example, it can be configured by an FPGA (Field Programable Gate Array), a digital circuit such as an ASIC, a processor such as a CPU, or the like.

As shown in FIG. 1, the first panel 11R emits the first image light LR in the red wavelength region. Therefore, the image light emitted from the first panel 11R is incident on the dichroic prism 12 as the first image light LR in the red wavelength region. The second panel 11G emits the second image light LG in the green wavelength region. Therefore, the image light emitted from the second panel 11G is incident on the dichroic prism 12 as the second image light LG in the green wavelength region. The third panel 11B emits the third image light LB in the blue wavelength region. Therefore, the image light emitted from the third panel 11B is incident on the dichroic prism 12 as the third image light LB in the blue wavelength region.

The peak wavelength in the red wavelength region is, for example, 630 nm or more and 680 nm or less. The peak wavelength in the green wavelength region is, for example, 495 nm or more and 570 nm or less. The peak wavelength in the blue wavelength region is, for example, 450 nm or more and 490 nm or less. Each of the first image light LR, the second image light LG, and the third image light LB does not have the polarization characteristic. That is, each of the first image light LR, the second image light LG, and the third image light LB is unpolarized light that does not have a specific vibration direction. It should be noted that unpolarized light, that is, light having no polarization characteristic, is not in a completely unpolarized state and contains a certain amount of polarization component, but has optical performance with respect to optical components such as a dichroic mirror. Is light having a degree of polarization in a range that is not considered to positively affect, for example, a degree of polarization of 20% or less.

The dichroic prism 12 is composed of a translucent member having a square columnar shape. Further, the square columnar translucent member is configured by combining four triangular columnar translucent members. The dichroic prism 12 has a first incident surface 12a, a third incident surface 12c facing the first incident surface 12a, a second incident surface 12b perpendicular to the first incident surface 12a and the third incident surface 12c, and a second incident surface 12b. It has an injection surface 12e facing the two incident surface 12b.

The dichroic prism 12 has a first dichroic mirror 43 having no polarization separation characteristic and a second dichroic mirror 44 having no polarization separation characteristic. The first dichroic mirror 43 and the second dichroic mirror 44 intersect each other at an angle of 90 °. The first dichroic mirror 43 has a property of reflecting the first image light LR and transmitting the second image light LG and the third image light LB. The second dichroic mirror 44 has a property of reflecting the third image light LB and transmitting the first image light LR and the second image light LG.

The first panel 11R is arranged so as to face the first incident surface 12a. The second panel 11G is arranged so as to face the second incident surface 12b. The third panel 11B is arranged so as to face the third incident surface 12c. In the present embodiment, the first panel 11R is fixed to the first incident surface 12a via a translucent adhesive layer 46. The second panel 11G is fixed to the second incident surface 12b via a translucent adhesive layer 46. The third panel 11B is fixed to the third incident surface 12c via a translucent adhesive layer 46.

The image light generation module 10 of the present embodiment emits the composite image light LW in which the first image light LR, the second image light LG, and the third image light LB are combined from the ejection surface 12e of the dichroic prism 12.

The image by the composite image light LW is generated by superimposing each pixel PX of the first panel 11R, each pixel PX of the second panel 11G, and each pixel PX of the third panel 11B on each other. Therefore, the alignment of each pixel PX is very important. For example, if one pixel PX of the three color pixel PX is displaced with respect to the other two pixel PX, the image is blurred. There is a possibility that the display quality may be deteriorated due to problems such as a decrease in the resolution of a moving image or a still image, a line of a color with a misalignment appearing at the edge of the display area, and the like. Therefore, in the manufacturing process of the image light generation module 10, it is necessary to perform positioning when fixing the three panels 11R, 11G, 11B to the dichroic prism 12 with high accuracy.

For example, a method of mechanically adjusting the position of a panel when fixing the panel to a prism by providing a position adjusting mechanism on each panel has been conventionally proposed. However, such mechanical position adjustment has problems such as a large amount of time and effort required for the position adjustment work and a limit in improving the alignment accuracy.

On the other hand, as in Patent Document 1 described above, there is also proposed a method of processing the data to be displayed on the panel and correcting the display position, instead of mechanically adjusting the position of the panel when the panel is fixed. However, with this type of correction method, although correction in the horizontal direction or the vertical direction is possible, the deviation in the direction in which the panel rotates in the plane parallel to the display surface is measured in the pixel area provided on the panel. On the other hand, it is necessary to make corrections by tilting the light emitting area diagonally. In that case, for example, when an image of a straight line is displayed, a phenomenon in which the straight line is displayed in a stepped manner after correction, that is, so-called jaggies, may occur, and the display quality may deteriorate. Hereinafter, the deviation in the direction in which the panel rotates in the plane parallel to the display surface is referred to as a rotation deviation.

Hereinafter, in the image light generation module 10 of the present embodiment, a method of correcting the rotation deviation of the panels 11R, 11G, 11B will be described together with the assembly process of the image light generation module 10.

5A, 6A, 7A, 8A, 9A, and 10A are schematic configuration diagrams of the image light generation module 10 in each step.
5B, 6B, 7B, 8B, 9B, and 10B are diagrams showing the positional relationship of the panels 11R, 11G, and 11B in each step. It should be noted that these figures show the positional relationship as seen from the camera 48, which will be described later.
5C, 6C, 7C, 8C, 9C, and 10C are diagrams showing recognition images of a pixel region or an image light generation region captured by the control unit 13 through the camera 48.
11A, 12A, and 13A are diagrams showing the positions of image light generation regions within the panels 11R, 11G, and 11B, respectively.
11B, 12B, and 13B show the lighting / non-lighting states of the plurality of sub-pixel SPXs in the region surrounded by the broken line F in FIGS. 11A, 12A, and 13A, that is, in the upper part of the image light generation region. It is a figure which shows.

First, as a first step, as shown in FIG. 5A, the first panel 11R is fixed to the first incident surface 12a of the dichroic prism 12. At this time, assuming that the first panel 11R is fixed without causing a rotational deviation with respect to a reference line such as each side of the dichroic prism 12, the first panel is placed on the dichroic prism 12 as shown in FIG. 5B. 11R is arranged. Here, as shown in FIG. 5A, the camera 48 is arranged to face the injection surface 12e of the dichroic prism 12, and the image of the first pixel region 14R of the first panel 11R captured by the camera 48 is transmitted to the control unit 13. do. As a result, the control unit 13 recognizes the image 50R of the first pixel region 14R through the camera 48, as shown in FIG. 5C. At this time, the first panel 11R generates a pattern in which all the pixels PX of the first pixel region 14R are lit as the image 50R, that is, a so-called solid pattern.

Next, as a second step, as shown in FIG. 6A, the second panel 11G is fixed to the second incident surface 12b of the dichroic prism 12. At this time, as shown in FIG. 6B, it is assumed that the second panel 11G is fixed to the first panel 11R in a state of being displaced in a counterclockwise rotation direction about the center of the second pixel region 14G. .. Here, as shown in FIG. 6C, the control unit 13 recognizes the image 50G in which the second pixel region 14G is partially superimposed on the first pixel region 14R through the camera 48. At this time, the second panel 11G generates a pattern in which all the pixels PX of the second pixel region 14G are lit as an image, that is, a so-called solid pattern.

Next, as a third step, as shown in FIG. 7A, the third panel 11B is fixed to the third incident surface 12c of the dichroic prism 12. At this time, as shown in FIG. 7B, the third panel 11B rotates in the opposite direction to the second panel 11G with respect to the first panel 11R, that is, clockwise around the center of the third pixel region 14B. It is assumed that it is fixed in a state where it is displaced in the direction. Here, as shown in FIG. 7C, the control unit 13 recognizes the image 50B in which the third pixel region 14B is partially superimposed on the first pixel region 14R and the second pixel region 14G through the camera 48. That is, in the third step, as shown in FIG. 7C, the control unit 13 includes all of the first pixel region 14R, the second pixel region 14G, and the third pixel region 14B in the region CA represented by the unequal side octagon. Is recognized as a superposed area. The region CA in which the first pixel region 14R, the second pixel region 14G, and the third pixel region 14B are all superimposed is hereinafter referred to as a superimposed region CA. At this time, the third panel 11B generates a pattern in which all the pixels PX of the third pixel region 14B are lit as an image, that is, a so-called solid pattern.

Next, as a fourth step, the control unit 13 sets a part of the area in the superimposed area CA as the image light generation area GA common to the first panel 11R, the second panel 11G, and the third panel 11B. .. Specifically, as shown in FIG. 8B, among the superimposed regions CA of the unequal side octagons, the long side parallel to the long side of the first pixel region 14R extending in the horizontal direction and the first pixel region extending in the vertical direction. Assume a rectangle M having a short side parallel to the short side of 14R. Next, the size of the rectangle M is adjusted so that the area of the rectangle M is maximized in the superimposed region CA of the unequal side octagon, and the rectangle M when the area is maximized is set as the image light generation region GA. .. At this time, the image light generation region GA has a number of pixels corresponding to a predetermined standard resolution of the image light generation module 10. In the fourth step, the image light generation region GA is set for the second pixel region 14G of the second panel 11G. At this time, as shown in FIG. 8C, the control unit 13 includes the image 50R of the first pixel region 14R, the image 50B of the third pixel region 14B, the image light generation region GA set in the second panel 11G, and the image light generation region GA. Recognize. In order to make it easier for the control unit 13 to recognize the image light generation area GA, for example, the gradation of the image light generation area GA when making adjustments on the panels 11R, 11G, 11B is made different from the gradation of the other parts. You may.

Next, as a fifth step, the control unit 13 performs the same processing as in the fourth step on the third panel 11B. That is, after the rectangle M shown in FIG. 9B is used as the image light generation region GA, the image light generation region GA is set for the third pixel region 14B of the third panel 11B. At this time, as shown in FIG. 9C, the control unit 13 recognizes the image 50R of the first pixel region 14R and the image light generation region GA commonly set in the second panel 11G and the third panel 11B. ..

Next, as the sixth step, the control unit 13 performs the same processing as in the fourth step and the fifth step on the first panel 11R. That is, after the rectangle M shown in FIG. 10B is used as the image light generation region GA, the image light generation region GA is set for the first pixel region 14R of the first panel 11R. At this time, as shown in FIG. 10C, the control unit 13 recognizes the image light generation region GA commonly set in the first panel 11R, the second panel 11G, and the third panel 11B.

Next, as a seventh step, the control unit 13 adjusts the lighting / non-lighting of the plurality of sub-pixel SPXs of each pixel PX in the first pixel region 14R with respect to the first panel 11R. As for the first panel 11R, as shown in FIG. 11A, the upper side and the lower side of the image light generation region GA and the upper side and the lower side of the first pixel region 14R are parallel to each other. Further, the right side and the left side of the image light generation region GA and the right side and the left side of the first pixel region 14R are parallel to each other.

Therefore, focusing on the upper boundary of the image light generation region GA shown by the broken line F in FIG. 11A, as shown in FIG. 11B, the pixel rows located at the inner and outer boundaries of the image light generation region GA, in this case. For each pixel PX belonging to the pixel row PG3 in the third row from the top of FIG. 11B, all nine sub-pixel SPXs included in each pixel PX are turned on. Further, for each pixel PX belonging to the pixel row PG4 in the fourth row from the top of FIG. 11B, which is located inside the image light generation region GA with respect to the boundary, nine sub-pixel SPXs included in each pixel PX are also used. Turn on all. On the other hand, each pixel PX belonging to the pixel rows PG1 and PG2 in the first and second rows from the top of FIG. 11B, which is located outside the image light generation region GA with respect to the boundary, is included in each pixel PX9. All the sub-pixel SPXs are turned off. The control unit 13 makes the same adjustment for the lower side, the right side, and the left side of the image light generation region GA.

In FIG. 11B, in each pixel PX located inside the image light generation region GA, all the sub-pixel SPXs to be turned on are hatched with dots, and each pixel PX located at the boundary of the image light generation region GA is attached. In, the sub-pixel SPX to be turned on is hatched with diagonal lines. The same applies to FIGS. 12B and 13B below.

Next, as an eighth step, the control unit 13 adjusts the lighting / non-lighting of the plurality of sub-pixel SPXs of each pixel PX in the second pixel region 14G with respect to the second panel 11G. As described above, since the second panel 11G is shifted counterclockwise with respect to the first panel 11R, as shown in FIG. 12A, the image light generation region GA is a clock for the second pixel region 14G. It will be in a state of being displaced.

Therefore, paying attention to the boundary on the upper side of the image light generation region GA shown by the broken line F in FIG. 12A, as shown in FIG. 12B, it becomes a straight line downward to the right with respect to the upper side of the second pixel region 14G. Therefore, the control unit 13 has a plurality of pixels PX corresponding to the positions of the boundaries so that the boundary between the sub-pixel SPX in the lit state and the sub-pixel SPX in the non-lighted state becomes a straight line with a downward slope as smooth as possible. The lighting / non-lighting of each of the sub-pixel SPX of the above is adjusted. Further, for the plurality of pixel PXs on the lower left side of FIG. 12B located inside the image light generation region GA with respect to the boundary, all nine sub-pixel SPXs included in each pixel PX are turned on. On the other hand, for the plurality of pixel PXs on the upper right side of FIG. 12B located outside the image light generation region GA with respect to the boundary, all nine sub-pixel SPXs included in each pixel PX are not lit.

Next, as a ninth step, the control unit 13 adjusts the lighting / non-lighting of the plurality of sub-pixel SPXs of each pixel PX in the third pixel region 14B with respect to the third panel 11B. As described above, since the third panel 11B is shifted clockwise with respect to the first panel 11R, as shown in FIG. 13A, the image light generation region GA is counterclockwise with respect to the third pixel region 14B. It will be in a state of being displaced.

Therefore, paying attention to the boundary on the upper side of the image light generation region GA shown by the broken line F in FIG. 13A, as shown in FIG. 13B, it becomes a straight line rising to the right with respect to the upper side of the third pixel region 14B. Therefore, the control unit 13 has a plurality of pixels PX corresponding to the positions of the boundaries so that the boundary between the sub-pixel SPX in the lit state and the sub-pixel SPX in the non-lighted state becomes a straight line rising to the right as smoothly as possible. The lighting / non-lighting of each of the sub-pixel SPX of the above is adjusted. Further, for the plurality of pixel PXs on the lower right side of FIG. 13B located inside the image light generation region GA with respect to the boundary, all nine sub-pixel SPXs included in each pixel PX are turned on. On the other hand, for the plurality of pixel PX on the upper left side of FIG. 13B located outside the image light generation region GA with respect to the boundary, all nine sub-pixel SPXs included in each pixel PX are not lit.

Through the above 1st to 9th steps, the control unit 13 has the first pixel area 14R of the first panel 11R, the second pixel area 14G of the second panel 11G, and the third pixel area 14B of the third panel 11B. A part of the area in the superimposed area CA on which the and the above are superimposed is set as an image light generation area GA common to the first panel 11R, the second panel 11G, and the third panel 11B, and each panel 11R, 11G, With respect to 11B, the lighting / non-lighting of each of the plurality of sub-pixels SPX of the pixel PX located at the edge of the image light generation region GA is controlled.

As a result, the control unit 13 can correct the mutual rotational deviation of the first panel 11R, the second panel 11G, and the third panel 11B. In the present embodiment, the first panel 11R is not rotated with respect to the dichroic prism 12, and in the image light generation region GA, each side of the image light generation region GA is parallel to each side of the first pixel region 14R. It is set to be. Therefore, the image light generation region GA common to the first panel 11R, the second panel 11G, and the third panel 11B is not rotationally displaced with respect to the dichroic prism 12.

On the other hand, unlike the example of the present embodiment, even if all the panels 11R, 11G, and 11B have rotational deviations with respect to the dichroic prism 12, the control unit 13 has the same first to first steps as described above. By 9 steps, it is possible to correct the mutual rotational deviation of the first panel 11R, the second panel 11G, and the third panel 11B. In this case, the image light generation region GA common to the first panel 11R, the second panel 11G, and the third panel 11B has a rotational deviation with respect to the dichroic prism 12. However, even in this case, when the image light generation module 10 is used for the image display device, the entire image light generation module 10 is rotated in the image display device in the direction of correcting the rotation deviation. There is no particular problem because the correction can be performed by a method such as fixing or rotating the image on the display surface by image processing.

The order of each of the above steps is an example, and the order may be changed as appropriate. For example, the control unit 13 adjusts the lighting / non-lighting of the plurality of sub-pixel SPXs of the panels 11R, 11G, 11B immediately after setting the image light generation area GA in the panels 11R, 11G, 11B, and performs this procedure. It may be repeated with three panels 11R, 11G, 11B. In this case, the order of the above steps is as follows: 1st step → 2nd step → 3rd step → 4th step → 8th step → 5th step → 9th step → 6th step → 7th step. Further, the order of processing between the three panels 11R, 11G, and 11B can be changed as appropriate.

Even in the conventional image light generation module, when correcting the rotation deviation of the panel, the image light generation area is corrected so as to be tilted diagonally with respect to the pixel area of the panel, as in the present embodiment. Correspondence is possible. However, if the image is displayed after the correction, a phenomenon in which straight lines corresponding to each side of the image light generation area are displayed diagonally in steps in units of one pixel, so-called jaggies, may occur and the display quality may deteriorate. be.

To solve this problem, in the image light generation module 10 of the present embodiment, each of the plurality of pixels PX of each panel 11R, 11G, 11B has nine sub-pixel SPXs arranged in a matrix and is controlled. The lighting / non-lighting of each of the nine sub-pixel SPXs is individually adjusted by the unit 13. Therefore, for example, as shown in FIGS. 12A and 13A, even if the image light generation region GA is set to be rotated with respect to the pixel regions 14G and 14B of the panels 11G and 11B in which the rotation deviation has occurred, FIG. As shown in 12B and FIG. 13B, the boundary of the edge of the image light generation region GA can be displayed diagonally in units of one sub-pixel. As described above, according to the image light generation module 10 of the present embodiment, the jaggedness of the edge portion of the image light generation region GA can be made finer than in the conventional case, so that the deterioration of display quality due to jaggies is suppressed. be able to.

Further, in the case of the present embodiment, each panel 11R, 11G, 11B has a number of pixels PX in each pixel area 14R, 14G, 14B that exceeds the number of pixels corresponding to the standard resolution of the image light generation module 10. There is. In other words, each panel 11R, 11G, 11B has a margin around the region in which the number of pixels PX corresponding to the standard resolution is arranged. Therefore, even if there is a panel such as the second panel 11G and the third panel 11B of the present embodiment in which the image light generation area GA is set by rotating the image light generation area GA with respect to the pixel areas 14G and 14B, the image light generation area The GA can maintain the number of pixels corresponding to a predetermined standard resolution. Therefore, according to this configuration, it is possible to suppress a decrease in resolution due to rotation deviation correction.

Further, in the case of the present embodiment, the first panel 11R, the second panel 11G, and the third panel 11B are composed of a self-luminous panel made of an organic EL panel. Therefore, each pixel PX includes a first control transistor TR1 that controls the amount of light emitted corresponding to the gradation of the pixel PX, and second control transistors TR21 to TR29 that control the lighting / non-lighting of each of the plurality of sub-pixel SPXs. By preparing for, it is possible to easily control the lighting / non-lighting of each of the plurality of sub-pixels SPX of each pixel PX.

[Second Embodiment]
Hereinafter, the second embodiment of the present invention will be described with reference to the drawings.
The image light generation module 10 described in the first embodiment is used in the image display device described below.
FIG. 14 is an explanatory diagram of the head-mounted display device 1000 of the second embodiment. FIG. 15 is a perspective view schematically showing the configuration of the optical system of the virtual image display unit 1010 shown in FIG. FIG. 16 is an explanatory diagram showing an optical path of the optical system shown in FIG.

As shown in FIG. 14, the head-mounted display device 1000 (image display device) is configured as a see-through type eyeglass display, and has a frame 1110 having temples 1111, 1112 on the left and right. In the head-mounted display device 1000, the virtual image display unit 1010 is supported by the frame 1110 and causes the user to recognize the image ejected from the virtual image display unit 1010 as a virtual image. In the present embodiment, the head-mounted display device 1000 includes a left-eye display unit 1101 and a right-eye display unit 1102 as a virtual image display unit 1010. The left-eye display unit 1101 and the right-eye display unit 1102 have the same configuration and are arranged symmetrically.

In the following description, the display unit 1101 for the left eye will be mainly described, and the description of the display unit 1102 for the right eye will be omitted.
As shown in FIGS. 15 and 16, in the head-mounted display device 1000, the left eye display unit 1101 emits an image light generation module 10 and a composite image light LW emitted from the image light generation module 10. A light guide system 1030 leading to 1058 is provided. A projection lens system 1070 is arranged between the image light generation module 10 and the light guide system 1030. The composite image light LW emitted from the image light generation module 10 is incident on the light guide system 1030 via the projection lens system 1070. The projection lens system 1070 is composed of one collimating lens having a positive power.

The image light generation module 10 includes a dichroic prism 12 and three panels 11R, 11G, 11B provided facing the three surfaces of the four surfaces of the dichroic prism 12 (third surface of the triangular prism prism). It is equipped with. The panels 11R, 11G, and 11B are composed of, for example, an organic EL panel.

The image light emitted from the first panel 11R is incident on the dichroic prism 12 as the first image light LR in the first wavelength region. The image light emitted from the second panel 11G is incident on the dichroic prism 12 as the second image light LG in the second wavelength region. The image light emitted from the third panel 11B is incident on the dichroic prism 12 as the third image light LB in the third wavelength region. From the dichroic prism 12, a composite image light LW in which the first image light LR, the second image light LG, and the third image light LB are combined is emitted.

The light guide system 1030 includes a translucent incident portion 1040 to which the composite image light LW is incident, and a translucent light guide unit 1050 whose one end 1051 side is connected to the incident portion 1040. In the present embodiment, the incident portion 1040 and the light guide portion 1050 are configured by an integral translucent member.

The incident portion 1040 includes an incident surface 1041 on which the composite image light LW emitted from the image light generation module 10 is incident, and a reflecting surface 1042 that reflects the composite image light LW incident from the incident surface 1041 between the incident surface 1041. , Is equipped. The incident surface 1041 is formed of a flat surface, an aspherical surface, a free curved surface, or the like, and faces the image light generation module 10 via the projection lens system 1070. The projection lens system 1070 is arranged diagonally so that the distance between the incident surface 1041 and the end portion 1412 is wider than the distance between the incident surface 1041 and the end portion 1411.

Although no reflective film is formed on the incident surface 1041, the light incident at an incident angle equal to or higher than the critical angle is totally reflected. Therefore, the incident surface 1041 has light transmission and light reflection. The reflective surface 1042 is composed of a surface facing the incident surface 1041 and is arranged at an angle so that the end portion 1422 is separated from the incident surface 1041 with respect to the end portion 1421 of the incident surface 1041. Therefore, the incident portion 1040 has a substantially triangular shape. The reflective surface 1042 is formed of a flat surface, an aspherical surface, a free curved surface, or the like. The reflective surface 1042 has a structure in which a reflective metal layer containing aluminum, silver, magnesium, chromium, or the like as a main component is formed.

The light guide unit 1050 has a first surface 1056 (first reflective surface) extending from one end 1051 toward the other end 1052, and a first surface 1056 facing parallel to the first surface 1056 from one end 1051 side to the other end 1052. It includes a second surface 1057 (second reflective surface) extending toward the side, and an injection portion 1058 provided at a portion of the second surface 1057 separated from the incident portion 1040. The first surface 1056 and the reflecting surface 1042 of the incident portion 1040 are continuous via the slope 1043. The thickness of the first surface 1056 and the second surface 1057 is thinner than that of the incident portion 1040. The first surface 1056 and the second surface 1057 totally reflect the light incident at an incident angle equal to or higher than the critical angle based on the difference in refractive index between the light guide unit 1050 and the outside world (air). Therefore, no reflective film is formed on the first surface 1056 and the second surface 1057.

The injection portion 1058 is formed on a part of the light guide portion 1050 on the second surface 1057 side in the thickness direction. In the injection unit 1058, a plurality of partially reflecting surfaces 1055 inclined diagonally with respect to the normal direction with respect to the second surface 1057 are arranged in parallel with each other. The injection portion 1058 is a portion of the second surface 1057 that overlaps a plurality of partial reflection surfaces 1055, and is a region having a predetermined width in the extending direction of the light guide portion 1050. Each of the plurality of partially reflecting surfaces 1055 is composed of a dielectric multilayer film. Further, at least one of the plurality of partially reflecting surfaces 1055 is a composite layer of a dielectric multilayer film and a reflective metal layer (thin film) containing aluminum, silver, magnesium, chromium and the like as main components. May be good. When the partially reflecting surface 1055 contains a metal layer, the effect of increasing the reflectance of the partially reflecting surface 1055, or the incident angle dependence and the polarization dependence of the transmittance and reflectance of the partially reflecting surface 1055 can be optimized. There is an effect. The injection unit 1058 may be provided with an optical element such as a diffraction grating or a hologram.

In the head-mounted display device 1000 having the above configuration, the composite image light LW composed of parallel light incident from the incident portion 1040 is refracted by the incident surface 1041 and directed toward the reflecting surface 1042. Next, the composite image light LW is reflected by the reflecting surface 1042 and heads toward the incident surface 1041 again. At that time, since the composite image light LW is incident on the incident surface 1041 at an incident angle equal to or higher than the critical angle, it is reflected by the incident surface 1041 toward the light guide unit 1050 and heads toward the light guide unit 1050. In the incident portion 1040, the composite image light LW which is parallel light is configured to be incident on the incident surface 1041, but the incident surface 1041 and the reflecting surface 1042 are configured by a free curved surface or the like, and the composite is non-parallel light. A configuration may be adopted in which the image light LW is incident on the incident surface 1041 and then converted into parallel light while being reflected between the reflecting surface 1042 and the incident surface 1041.

In the light guide unit 1050, the composite image light LW is reflected between the first surface 1056 and the second surface 1057 and travels. A part of the composite image light LW incident on the partially reflecting surface 1055 is reflected by the partially reflecting surface 1055 and emitted from the ejection unit 1058 toward the observer's eye E. Further, the rest of the composite image light LW incident on the partially reflecting surface 1055 passes through the partially reflecting surface 1055 and is incident on the next adjacent partially reflecting surface 1055. Therefore, the synthetic image light LW reflected by each of the plurality of partially reflecting surfaces 1055 is emitted from the emission unit 1058 toward the observer's eye E. This allows the observer to recognize the virtual image.

At that time, the light incident on the light guide unit 1050 from the outside world, after being incident on the light guide unit 1050, passes through the partially reflecting surface 1055 and reaches the observer's eye E. Therefore, the observer can visually recognize the color image emitted from the image light generation module 10 and can visually recognize the scenery of the outside world through see-through.

Since the head-mounted display device 1000 of the second embodiment includes the image light generation module 10 of the first embodiment, it is possible to display a high-quality image.

In the head-mounted display device 1000 of the second embodiment, the case where the light guide unit 1050 is used as the light guide system 1030 is given as an example, but the image of the first embodiment is used for the optical system that does not use the light guide unit. A head-mounted display device may be configured by applying the light generation module 10.

[Third Embodiment]
Hereinafter, the third embodiment of the present invention will be described with reference to FIG.
The image light generation module 10 described in the first embodiment is used in the display device described below.
FIG. 17 is a schematic configuration diagram of the projection type display device 2000 of the third embodiment.

As shown in FIG. 17, the projection type display device 2000 (image display device) projects the image light generation module 10 according to the above embodiment and the composite image light LW emitted from the image light generation module 10 onto a screen or the like. It includes a projection optical system 2100 that magnifies and projects on the member 2200.

The image light generation module 10 includes a dichroic prism 12 and three panels 11R, 11G, 11B provided facing the three surfaces of the four surfaces of the dichroic prism 12 (third surface of the triangular prism prism). It is equipped with. The panels 11R, 11G, and 11B are composed of a panel that emits image light that does not have polarization characteristics, such as an organic EL panel.

Since the projection type display device 2000 of the third embodiment includes the image light generation module 10 of the first embodiment, it is possible to display a high-quality image.

The technical scope of the present invention is not limited to the above embodiment, and various changes can be made without departing from the spirit of the present invention.
For example, in the above embodiment, the number of pixels exceeding the number of pixels corresponding to the standard resolution of the image light generation module is provided in the pixel area of each panel, but the resolution is slightly reduced due to the correction of the rotation deviation. If acceptable, the number of pixels that exceeds the number of pixels corresponding to the standard resolution may not necessarily be provided.

Further, in the above embodiment, among the first panel, the second panel, and the third panel, the pixels of all the panels have a plurality of sub-pixels arranged in a matrix, but at least one panel. It suffices if the pixels have a plurality of sub-pixels arranged in a matrix. For example, when setting a rectangular image light generation area in the superimposed area as in the first panel of the above embodiment, each side of the pixel area of the panel and the image light generation area are set with reference to any one panel. If the method of setting the image light generation area so that each side of the panel is parallel to each other, only the pixel of the panel does not have to have a plurality of sub-pixels.

Further, in the above embodiment, when the image light generation area is set in the pixel area of each panel, the size of the rectangle is adjusted so that the area of the rectangle indicating the image light generation area is maximized in the superimposed area. , The superimposed area can be used as much as possible as an image light generation area. Further, for example, as a result of maximizing the area of the rectangle in the superimposed region of the three panels, each side of the image light generation region may not be parallel to each side of the pixel region of any panel. That is, it is not always necessary to provide a panel as a reference when setting the image light generation area.

Further, it is not always necessary to adjust the size of the rectangle so that the area of the rectangle indicating the image light generation area is maximized, and a part of the area in the superimposed area is cut out into a rectangular shape and set as the image light generation area. do it. Further, the shape of the image light generation region is not limited to a rectangle, and may be, for example, a square or a circle. It may be adjusted as appropriate.

Further, in the above embodiment, examples of the organic EL panel are given as the first panel, the second panel, and the third panel constituting the image light generation module, but the image display panel is not limited to the organic EL panel and is an inorganic EL. A self-luminous panel such as a panel or a micro LED panel may be used. Further, the first panel, the second panel and the third panel do not have to be a self-luminous panel, and may be, for example, a liquid crystal panel.

Further, as another example of the image display device provided with the image light generation module described in the above embodiment, an electronic viewfinder (EVF) used in an image pickup device such as a head-up display, a handheld display, a video camera or a still camera. : Electrical View Finder) and the like.

In addition, the specific description regarding the number, shape, arrangement, constituent materials, etc. of each component of the image light generation module of the above embodiment is not limited to the above embodiment, and can be appropriately changed.

The image light generation module of one aspect of this embodiment may have the following configuration.
The image light generation module of one aspect of the present embodiment has a first panel that emits a first image light of a first color and a second panel that emits a second image light of a second color different from the first color. A panel, a third panel that emits a third image light of a third color different from the first color and the second color, and the first image light, the second image light, and the third image light. Each of the first panel, the second panel, and the third panel includes a color synthesis prism for synthesizing, a control unit for controlling the first panel, the second panel, and the third panel. , A pixel region containing a plurality of pixels arranged in a matrix, and the pixels of at least one of the first panel, the second panel, and the third panel are arranged in a matrix. The control unit has a plurality of sub-pixels, and the control unit controls the gradation of the pixels based on the image signal supplied to the at least one panel with respect to the at least one panel, and also controls the gradation of the pixels. Controls the lighting / non-lighting of each of the sub-pixels.

In the image light generation module of one aspect of the present embodiment, the control unit includes the pixel region of the first panel, the pixel region of the second panel, and the pixel region of the third panel. A part of the superimposed region overlapping with each other is set as an image light generation region common to the first panel, the second panel, and the third panel, and the image is obtained with respect to the at least one panel. The lighting / non-lighting of each of the plurality of sub-pixels of the pixel located at the edge of the light generation region may be controlled.

In the image light generation module of one aspect of the present embodiment, a part of the area in the superimposed region may have the number of pixels corresponding to a predetermined standard resolution of the image light generation module.

In the image light generation module of one embodiment of the present embodiment, the at least one panel may have the number of pixels in the pixel region exceeding the number of pixels corresponding to the standard resolution.

In the image light generation module of one aspect of the present embodiment, the first panel, the second panel, and the third panel may be composed of a self-luminous panel.

In the image light generation module of one aspect of the present embodiment, the self-luminous panel may be composed of an organic EL panel.

In the image light generation module of one aspect of the present embodiment, the pixel in the at least one panel is a first control transistor that controls the amount of light emission corresponding to the gradation of the pixel based on the image signal, and the said. It has a second control transistor that is electrically connected to the first control transistor and controls the lighting / non-lighting of each of the plurality of sub-pixels, and the control unit includes the first control transistor and the second control transistor. It may be configured to control the control transistor.

10 ... Image light generation module, 11R ... 1st panel, 11G ... 2nd panel, 11B ... 3rd panel, 12 ... Dycroic prism (color synthesis prism), 13 ... Control unit, 14R ... 1st pixel area, 14G ... First 2 pixel area, 14B ... 3rd pixel area, GA ... image light generation area, LR ... 1st image light, LG ... 2nd image light, LB ... 3rd image light, PX ... pixel, SPX ... sub pixel, TR1 ... First control transistor, TR21 to TR29 ... Second control transistor.

Claims (8)

The first panel that emits the first image light of the first color,
A second panel that emits second image light of a second color different from the first color, and
A third panel that emits third image light of the first color and a third color different from the second color, and
A color synthesis prism that synthesizes the first image light, the second image light, and the third image light, and
A control unit that controls the first panel, the second panel, and the third panel.
Equipped with
Each of the first panel, the second panel, and the third panel has a pixel region containing a plurality of pixels arranged in a matrix.
The pixel of at least one of the first panel, the second panel, and the third panel has a plurality of sub-pixels arranged in a matrix.
The control unit controls the gradation of the pixel based on the image signal supplied to the at least one panel with respect to the at least one panel, and turns on / off each of the plurality of sub-pixels. Image light generation module to control. The control unit sets a part of a region in the superimposed region in which the pixel region of the first panel, the pixel region of the second panel, and the pixel region of the third panel overlap each other. It is set as an image light generation area common to the first panel, the second panel, and the third panel.
The image light generation module according to claim 1, wherein the at least one panel controls lighting / non-lighting of each of the plurality of sub-pixels of the pixel located at the edge of the image light generation region. The image light generation module according to claim 2, wherein a part of the superimposed area has the number of pixels corresponding to a predetermined standard resolution of the image light generation module. The image light generation module according to claim 3, wherein the at least one panel has the number of pixels in the pixel region exceeding the number of pixels corresponding to the standard resolution. The image light generation module according to any one of claims 1 to 4, wherein the first panel, the second panel, and the third panel are composed of a self-luminous panel. The image light generation module according to claim 5, wherein the self-luminous panel is composed of an organic electroluminescence panel. The pixels in the at least one panel
A first control transistor that controls the amount of light emitted corresponding to the gradation of the pixel based on the image signal,
A second control transistor electrically connected to the first control transistor and controlling lighting / non-lighting of each of the plurality of sub-pixels.
Have,
The image light generation module according to claim 6, wherein the control unit controls the first control transistor and the second control transistor. An image display device comprising the image light generation module according to any one of claims 1 to 7.

Images