JP6870766B2 - Display devices and electronic devices - Google Patents

Description

The present invention relates to display devices and electronic devices.

In recent years, as a virtual image display device that enables the formation and observation of a virtual image like a head-mounted display, a type of head-mounted display that guides image light from a display element to the eyes of an observer has been proposed. In such a virtual image display device, as described in Patent Document 1, a see-through optical system that superimposes image light and external light is adopted.

Japanese Unexamined Patent Publication No. 2013-200553

However, the virtual image display device described in Patent Document 1 has a problem that it is difficult to achieve both the image quality of the displayed image and the miniaturization of an electronic device such as a head-mounted display. This is because, in the conventional virtual image display device, when the display image is brightened to a high resolution, the display device becomes large. In other words, conventionally, there has been a problem that it is difficult to realize a display device that is lightweight and compact enough not to cause discomfort to the user when adapted to an electronic device and displays a high-quality image.

The present invention has been made to solve at least a part of the above problems, and can be realized as the following forms or application examples.

(Application Example 1) The display device according to this application example includes a first light emitting element, a second light emitting element, a first color filter through which light from the first light emitting element passes, and a second light emitting element. A second color filter through which light from the element passes is provided, and the relative positional relationship between the center of the first light emitting element and the center of the first color filter in plan view is determined in plan view. It is characterized in that the relative positional relationship between the center of the second light emitting element and the center of the second color filter is different.
With this configuration, since the color filter is arranged along the optical axis from the light emitting element, the angle of view can be widened while maintaining the size of the light emitting element to some extent. Therefore, it is possible to achieve both the image quality of the displayed image and the miniaturization of electronic devices such as head-mounted displays.

(Application Example 2) In the display device according to the above application example 1, the first light emitting element, the first color filter, the second light emitting element, and the second color filter are arranged in the display area, and the first light emitting element, the first color filter, and the second color filter are arranged in the display area. The optical axis from one light emitting element is inclined toward the center side of the display area from the normal to the first light emitting element, and the center of the first color filter in the plan view is the first in the plan view. It is preferable that the light emitting element is shifted to the center side of the display area from the center of the light emitting element.
In a display device of an electronic device such as a head-mounted display having a condensing optical system, the optical axis from the light emitting element is inclined toward the center side of the display area except for the central part of the display area. Therefore, in this configuration, since the color filters are arranged so as to be offset from the center side with respect to the light emitting element, the angle of view can be widened while maintaining the size of the light emitting element to some extent. That is, it is possible to achieve both miniaturization of an electronic device such as a head-mounted display having a condensing optical system and high-quality image displayed on the electronic device.

(Application Example 3) In the display device according to the above application example 2, the second light emitting element and the second color filter are based on the first light emitting element and the first color filter in the display area. The amount of deviation between the center of the first light emitting element and the center of the first color filter in the plan view is defined as the first deviation amount, and the center and the second of the second light emitting element in the plan view are arranged inside. When the amount of deviation from the center of the second color filter is defined as the amount of second deviation, the amount of second deviation is preferably smaller than the amount of first deviation.
In a display device of an electronic device such as a head-mounted display having a condensing optical system, the inclination of the optical axis from the light emitting element becomes larger toward the outside of the display area. With this configuration, the amount of deviation between the light emitting element and the color filter is adjusted according to the position of the light emitting element in the display area, so the angle of view should be widened while maintaining the size of the light emitting element to some extent. Can be done. That is, it is possible to achieve both miniaturization of an electronic device such as a head-mounted display having a condensing optical system and high-quality image displayed on the electronic device.

(Application Example 4) In the display device according to the above application example 3, a separation unit for separating color filters is further provided, and the difference between the first deviation amount and the second deviation amount is the difference between the first color filter and the second. It is preferable that it depends on the width of the separation portion arranged between the color filter and the color filter.
With this configuration, the positional relationship between the light emitting element and the color filter can be easily adjusted by simply changing the width of the separation portion.

(Application Example 5) In the display device according to the above application example 3, the color filter includes a red color filter, a green color filter, and a blue color filter, and the first deviation amount and the second deviation amount. It is preferable that the difference is arranged between the first color filter and the second color filter, and depends on the width of the separation portion that separates the red color filter and the blue color filter.
Human visibility is high in green. Therefore, with this configuration, the difference in the amount of deviation is created while avoiding the green color filter having high luminosity factor, so that the possibility that the user notices the existence of the separation portion creating the difference can be suppressed.

(Application Example 6) In the display device according to the above application example 4 or 5, the light emitting elements and the color filter are arranged in a matrix in the display area, and the difference between the first deviation amount and the second deviation amount. It is preferable that the position of the separation part in the row direction that creates the above is different between the first row and the second row adjacent to the first row.
With this configuration, since the separation portions having different widths are not arranged in a row, it is possible to suppress the possibility that the user notices the existence of the separation portions that make a difference.

(Application Example 7) In the display device according to the above application example 3, the difference between the first deviation amount and the second deviation amount is arranged between the first color filter and the second color filter. It is preferable that it depends on the width of another color filter.
With this configuration, the positional relationship between the light emitting element and the color filter can be easily adjusted by simply changing the width of the color filter.

(Application Example 8) In the display device described in Application Example 7 above, the color filter includes a red color filter, a green color filter, and a blue color filter, and another color filter is a blue color filter. Is preferable.
Human visibility is low in blue. Therefore, with this configuration, since a difference in the amount of deviation is created by using a blue color filter having low luminosity factor, it is possible to suppress the possibility that the user notices the existence of the color filter creating the difference.

(Application Example 9) In the display device according to the above application example 7 or 8, the light emitting elements and the color filter are arranged in a matrix in the display area, and the position of another color filter in the row direction is the first. It is preferable that the first row and the second row adjacent to the first row are different.
With this configuration, different color filters with different widths are not lined up, so it is possible to suppress the possibility that the user will notice the existence of another color filter that is making a difference.

(Application Example 10) An electronic device provided with the display device according to any one of the above application examples 1 to 9.
With this configuration, it is possible to achieve both miniaturization of an electronic device such as a head-mounted display and high-quality image displayed on the electronic device.

The figure explaining the outline of the electronic device which concerns on this Embodiment. The figure explaining the internal structure of the electronic device which concerns on this embodiment. The figure explaining the optical system of the electronic device which concerns on this embodiment. The figure explaining the display device which concerns on this embodiment. The figure explaining the display device which concerns on a comparative example. The figure explaining the structure of the sub-area boundary. The figure explaining the arrangement of the sub-area boundary. The figure explaining the relationship between the deviation amount and the angle of view. The figure explaining the structure of the sub-area boundary of the display device which concerns on Embodiment 2. FIG. The figure explaining the arrangement of the sub-area boundary of the display device which concerns on modification 1. FIG. The figure explaining the arrangement of the sub-area boundary of the display device which concerns on modification 2. FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings below, the scale is different for each layer and each member in order to make each layer and each member recognizable in the drawing.

(Embodiment 1)
"Overview of electronic devices"
FIG. 1 is a diagram illustrating an outline of an electronic device according to the present embodiment. First, an outline of the electronic device will be described with reference to FIG.

The head-mounted display 100 is an example of an electronic device according to the present embodiment, and includes a display device 80 (see FIG. 3). As shown in FIG. 1, the head-mounted display 100 has an appearance like glasses. The user wearing the head-mounted display 100 is made to visually recognize the image light GL (see FIG. 3) as an image, and the user is made to visually recognize the outside light through see-through. In short, the head-mounted display 100 has a see-through function for displaying external light and video light GL in an overlapping manner, and is compact and lightweight while having a wide angle of view and high performance.

The head-mounted display 100 is added to a fluoroscopic member 101 that covers the front of the user's eyes, a frame 102 that supports the fluoroscopic member 101, and a portion of the frame 102 from the cover portions at both left and right ends to the rear temple portion (temple). It includes a first built-in device unit 105a and a second built-in device unit 105b. The fluoroscopic member 101 is a thick and curved optical member (transmissive eye cover) that covers the front of the user's eyes, and is divided into a first optical portion 103a and a second optical portion 103b. In FIG. 1, the first display unit 151, which is a combination of the first optical portion 103a on the left side and the first built-in device portion 105a, is a portion that displays a virtual image for the right eye through see-through, and has a display function by itself. Functions as an electronic device. Further, the second display device 152, which is a combination of the second optical part 103b on the right side and the second built-in device part 105b in FIG. 1, is a part that forms a virtual image for the left eye by see-through, and has a display function by itself. Functions as an attached electronic device.

"Internal structure of electronic devices"
FIG. 2 is a diagram illustrating an internal structure of an electronic device according to the present embodiment. FIG. 3 is a diagram illustrating an optical system of an electronic device according to the present embodiment. Next, the internal structure and the optical system of the electronic device will be described with reference to FIGS. 2 and 3. Although the first display device 151 is described as an example of an electronic device in FIGS. 2 and 3, it is symmetrical with respect to the second display device 152 and has almost the same structure.

As shown in FIG. 2, the first display device 151 includes a projection fluoroscopy device 70 and a display device 80 (see FIG. 3). The projection fluoroscopy device 70 includes a prism 10 which is a light guide member, a light transmission member 50, and a projection lens 30 for imaging (see FIG. 3). The prism 10 and the light transmitting member 50 are integrated by joining, and are firmly fixed to the lower side of the frame 61 so that, for example, the upper surface 10e of the prism 10 and the lower surface 61e of the frame 61 are in contact with each other. The projection lens 30 is fixed to the end of the prism 10 via a lens barrel 62 that houses the projection lens 30. Of the projection fluoroscope 70, the prism 10 and the light transmitting member 50 correspond to the first optical portion 103a in FIG. 1, and the projection lens 30 of the projection fluoroscope 70 and the display device 80 are the first built-in in FIG. Corresponds to the device unit 105a.

Of the projection fluoroscope 70, the prism 10 is an arc-shaped member curved along the face in a plan view, and the first prism portion 11 on the central side near the nose and the second prism portion 11 on the peripheral side away from the nose. It can be considered separately from the prism portion 12. The first prism portion 11 is arranged on the light emitting side and has a first surface S11 (see FIG. 3), a second surface S12, and a third surface S13 as side surfaces having an optical function. The second prism portion 12 is arranged on the light incident side and has a fourth surface S14 (see FIG. 3) and a fifth surface S15 as side surfaces having an optical function. Of these, the first surface S11 and the fourth surface S14 are adjacent to each other, the third surface S13 and the fifth surface S15 are adjacent to each other, and the second surface S12 is arranged between the first surface S11 and the third surface S13. Has been done. Further, the prism 10 has an upper surface 10e adjacent to the first surface S11 to the fourth surface S14.

The prism 10 is made of a resin material that exhibits high light transmittance in the visible region, and is molded by, for example, injecting and solidifying a thermoplastic resin into a mold. Although the main body portion 10s (see FIG. 3) of the prism 10 is an integrally formed product, it can be considered separately as a first prism portion 11 and a second prism portion 12. The first prism portion 11 enables waveguide and emission of the image light GL, and also enables see-through of external light. The second prism portion 12 enables the incident and waveguide of the image light GL.

The light transmitting member 50 is integrally fixed with the prism 10. The light transmitting member 50 is a member (auxiliary prism) that assists the see-through function of the prism 10. The light transmitting member 50 is made of a resin material that exhibits high light transmission in the visible region and has substantially the same refractive index as the main body portion 10s of the prism 10. The light transmitting member 50 is formed, for example, by molding a thermoplastic resin.

As shown in FIG. 3, the projection lens 30 has, for example, three lenses 31, 32, 33 along the incident side optical axis. Each of the lenses 31, 32, and 33 is a lens that is rotationally symmetric with respect to the central axis of the light incident surface of the lens, and at least one of them is an aspherical lens. The projection lens 30 causes the image light GL emitted from the display device 80 to enter the prism 10 and reimage the eye EY. In short, the projection lens 30 is a relay optical system for re-imaging the image light GL emitted from each pixel 820 of the display device 80 on the eye EY via the prism 10. The projection lens 30 is held in the lens barrel 62, and the display device 80 is fixed to one end of the lens barrel 62. The second prism portion 12 of the prism 10 is connected to a lens barrel 62 that holds the projection lens 30, and indirectly supports the projection lens 30 and the display device 80.

Pixels 820 are arranged in a matrix of M rows and N columns on the display device 80. M and N are integers of 2 or more, and in this embodiment, M = 720 and N = 1280 are set as an example. Each pixel 820 includes p sub-pixels, and each sub-pixel includes a light emitting element 830 and a color filter 840 through which the light emitted from the light emitting element 830 passes. The light emitting element 830 emits white light, and an organic EL element is used as an example in this embodiment. As the light emitting element 830, an LED element, a semiconductor laser element, or the like can also be used. In this embodiment, p = 3, and each pixel 820 includes three light emitting elements 830 and three color filters 840. The color filter 840 of each pixel 820 includes a red color filter 840R, a green color filter 840G, and a blue color filter 840B, and converts the light from the corresponding light emitting element 830 into red light, green light, and blue light. The image light GL is used. In addition to these, with p = 4, in addition to these, a color filter 840 for white light (sub-pixels without a color filter 840) may be prepared for the color filter 840, or these Alternatively, a color filter 840 for yellow light may be prepared.

As shown in FIG. 3, the optical axis of the image light GL emitted from each pixel 820 (to be exact, each subpixel) is deviated for each pixel 820 (to be exact, for each subpixel). Since the display device 80 of the present embodiment corrects this deviation, it is possible for the user to visually recognize a bright and high-resolution image. Next, this point will be described.

"Display device configuration"
4A and 4B are views for explaining a display device according to the present embodiment, where FIG. 4A is an overall sectional view, FIG. 4B is a plan view of pixels, and FIG. 4C is a sectional view of pixels. 5A and 5B are views for explaining a display device according to a comparative example, where FIG. 5A is a plan view of pixels and FIG. 5B is a cross-sectional view of pixels. Next, the display device according to the present embodiment will be described with reference to FIGS. 4 and 5. Although FIG. 5 is a diagram for explaining a comparative example, the same name and code number are used for parts showing the same functions as the display device according to the present embodiment for easy understanding. Further, in the following figure, in order to make the explanation easy to understand, an orthogonal coordinate system of x, y, z is introduced, the axis along the normal line of the display device is the z axis, and the pixel 820 is M rows in the display device. The axis arranged in the vertical direction (the axis along the extending direction of the column) is the y-axis, and the axis in which the pixels 820 are arranged in the horizontal direction of the N columns (the axis along the extending direction of the row) is the x-axis in the display device. Further, in the following figures, the scale is arbitrary and the scale is different for each part in one drawing in order to make the explanation easy to understand.

As shown in FIG. 4A, the display device 80 has a display area 810. The optical axis of the image light GL from the pixel 820 located at the center C of the display area 810 is substantially along the normal line of the display device, but the image light GL from the pixel 820 located at the left end L of the display device. The optical axis of is tilted to the right from the normal of the display device. Similarly, the optical axis of the image light GL from the pixel 820 located at the right end R of the display device is inclined to the left from the normal line of the display device. As described above, in the display device 80 of an electronic device such as a head-mounted display 100 having a condensing optical system, the optical axis from the light emitting element 830 is inclined toward the center side of the display area 810 except for the central portion of the display area 810. To do. Therefore, in the display device 80 of the present embodiment, the display area 810 is divided into 2q + 1 sub-areas, and in the pixels 820 belonging to different sub-areas, the relative positions of the center of the light emitting element 830 and the center of the color filter 840 are relative to each other. The relationships are configured differently. Note that q is an integer of 1 or more, and q = 20 in this embodiment. That is, the display area 810 is composed of a first sub-area including the central portion C, 20 sub-areas divided in the left direction along the x-axis from the first sub-area, and the first sub-area. It is divided into a total of 41 sub-areas, including 20 sub-areas divided in the right direction along the x-axis. In other words, there are 2q + 1 types of arrangements in the display area 810 in which the relative positional relationship between the center of the light emitting element 830 and the center of the color filter 840 is different.

FIG. 4 (bL) is a plan view of the pixel 820 located on the left side of the central portion C of the display area 810, and FIG. 4 (bC) is a plan view of the pixel 820 located on the central portion C of the display area 810. , FIG. 4 (bR) is a plan view of the pixel 820 located on the right side of the central portion C of the display area 810. FIG. 4 (cL) is a cross-sectional view of the pixel 820 located on the left side of the central portion C of the display area 810, and FIG. 4 (cC) is a cross-sectional view of the pixel 820 located on the central portion C of the display area 810. FIG. 4 (cR) is a cross-sectional view of the pixel 820 located on the right side of the central portion C of the display area 810. The display device 80 according to the present embodiment includes a first light emitting element 830 and a first color filter 840 through which light from the first light emitting element 830 passes. As an example, these are from the pixel 820 located on the left side of the central portion C shown in FIGS. 4 (bL) and 4 (cL) and the central portion C shown in FIGS. 4 (bR) and 4 (cR). Is also included in pixels 820, etc. located on the right side. Further, the display device 80 includes a second light emitting element 830 and a second color filter 840 through which the light from the second light emitting element 830 passes. These are included in the pixel 820 located at the central portion C shown in FIGS. 4 (bC) and 4 (cC) as an example. Therefore, for example, the second light emitting element 830 and the second color filter 840 included in the pixel 820 located near the central portion C of the display area 810 are the first light emitting element 830 in the display area 810. And the first color filter 840 and more inside.

As can be seen from FIG. 4, the relative positional relationship between the center of the first light emitting element 830 and the center of the first color filter 840 in the plan view is the second light emitting element in the plan view. The relative positional relationship between the center of the 830 and the center of the second color filter 840 is different. Further, as can be seen from FIGS. 4 (cL) and 4 (cR), the optical axis from the first light emitting element 830 is inclined toward the center side of the display region 810 from the normal with respect to the first light emitting element 830. The center of the first color filter 840 in the plan view is shifted to the center side of the display region 810 from the center of the first light emitting element 830 in the plan view.

The amount of deviation between the center of the first light emitting element 830 in the plan view and the center of the first color filter 840 is defined as the first deviation amount, and the center of the second light emitting element 830 and the second in the plan view are defined as the first deviation amount. When the deviation amount from the center of the color filter 840 is the second deviation amount, the second deviation amount is smaller than the first deviation amount. As an example, in the pixel 820 located in the central portion C shown in FIGS. 4 (bC) and 4 (cC), the second deviation amount is zero, the center of the second light emitting element 830 and the second color filter 840. It almost coincides with the center of. On the other hand, from the pixel 820 located on the left side of the central portion C shown in FIGS. 4 (bL) and 4 (cL) and the central portion C shown in FIGS. 4 (bR) and 4 (cR). In the pixel 820 located on the right side, the first deviation amount is a finite positive value, and the second deviation amount is smaller than the first deviation amount.

In short, the color filter 840 is arranged in each sub-area along the optical axis from the light emitting element 830. Further, as the distance from the central portion C of the display area 810 increases, the color filter 840 is arranged with respect to the light emitting element 830 so as to be largely displaced from the center side of the display area 810. In the display device 80 of an electronic device having a condensing optical system, the inclination of the optical axis from the light emitting element 830 becomes larger toward the outside of the display area 810, but in the display device 80, the position of the light emitting element 830 within the display area 810. The amount of deviation between the light emitting element 830 and the color filter 840 is adjusted accordingly.

As a result of such a configuration, the angle of view can be widened while maintaining the size of the light emitting element 830 to some extent. The angle of view is an angle θc (see FIG. 8) formed by the optical axis from the pixel 820 with the normal line of the display device. This point will be described in comparison with a comparative example. As shown in FIG. 5, in the conventional display device, the positional relationship between the light emitting element 830 and the color filter 840 is the same throughout the display area 810. That is, the center of the light emitting element 830 and the center of the color filter 840 coincided with each other in any pixel 820 of the display area 810. Therefore, as the resolution is increased, the angle of view becomes larger toward the outside of the display area 810, and the light emitting element 830 has to be made smaller. Therefore, the image light GL became weak and the display was dark. That is, in the past, it was not possible to achieve both high resolution and bright display. On the other hand, in the display device of the present embodiment, even if the resolution is increased and the angle of view is increased outside the display area 810, the size of the light emitting element 830 can be maintained to some extent, and the image can be displayed. The strength of the optical GL can be maintained. In other words, in the display device according to the present embodiment, both high resolution and bright display are compatible, and an electronic device such as a head-mounted display 100 having a condensing optical system is miniaturized and displayed on the electronic device. It is compatible with high quality of the image. As an example, the row length of the subpixel is 7.5 micrometers, the column width of the subpixel is 2.5 micrometers, and the row length of the light emitting element 830 is 6.1 micrometers. In this case, the width of the light emitting element 830 in the comparative example in the row direction is 1.1 micrometers, but the width of the light emitting element 830 of the present embodiment in the row direction is 1.8 micrometers. That is, the area of the light emitting element 830 of the present embodiment can be 1.64 times that of the area of the light emitting element 830 of the comparative example, and it is possible to reduce the driving voltage and display brightly.

"Sub-area boundary"
6A and 6B are views for explaining the configuration of the sub-area boundary, where FIG. 6A is a plan view of pixels near the sub-area boundary and FIG. 6B is a cross-sectional view of pixels near the sub-area boundary. FIG. 7 is a diagram illustrating the arrangement of sub-area boundaries. Next, the configuration and arrangement of the sub-area boundary SB will be described with reference to FIGS. 6 and 7. The sub-area boundary SB is a boundary between one sub-area and a sub-area adjacent to it.

The positional relationship between the light emitting element 830 and the color filter 840 is the same among the pixels 820 located in one sub-area. On the other hand, as shown in FIG. 6, the positional relationship between the light emitting element 830 and the color filter 840 differs between the pixels 820 belonging to different sub-areas. In the example of FIG. 6, in the pixel 820 on the left side of the sub-area boundary SB, the center of the light emitting element 830 and the center of the color filter 840 are substantially the same, but in the pixel 820 on the right side, the color is colored with respect to the center of the light emitting element 830. The center of the filter 840 is shifted to the left. Next, the configuration of the sub-area boundary SB will be described.

The display device 80 according to the present embodiment includes a separation unit 850 that separates the color filter 840. The separation unit 850 is a member that suppresses the mixing of the color materials of the color filter 840, is a bank when the color filter 840 is formed by a printing method, or is called a so-called black matrix for avoiding color mixing. It may be a thing. In the example of FIG. 6, the deviation amount between the center of the first light emitting element 830 belonging to the right subarea and the center of the first color filter 840 is the first deviation amount, and the second deviation amount belonging to the left subarea. The amount of deviation between the center of the light emitting element 830 and the center of the second color filter 840 is the second amount of deviation. As described above, the second deviation amount is smaller than the first deviation amount, but the difference between the first deviation amount and the second deviation amount is between the first color filter 840 and the second color filter 840. It depends on the width of the separated part 850 which is arranged. Separation unit 850 to separate to each other sub-pixel located at a sub-area is constant at a standard width W _BS. On the other hand, if the sub-areas to which they belong are different even if they are adjacent sub-pixels, the separation unit 850 has a change width W _BC . A different width and standard width W _BS and change the width W _BC, in the present embodiment, changing the width W _BC is narrower than the standard width W _BS. In this way, the positional relationship between the light emitting element 830 and the color filter 840 can be easily adjusted simply by changing the width of the separation portion 850 of the sub-area boundary SB.

Further, in order to suppress the possibility that the user notices the existence of the separation portion 850 that creates the difference, the difference between the first deviation amount and the second deviation amount is set between the first color filter 840 and the second color. It is arranged between the filter 840 and separated by changing the width of the separation portion 850 that separates the red color filter 840R and the blue color filter 840B. This is because humans have high luminosity factor, so if you avoid the green color filter 840G, which has high luminosity factor, and create a difference in the amount of deviation, it is difficult to notice the existence of the separation part 850, which has _{a change width of W BC.} is there.

In the present embodiment, N = 1280 pixels 820 are arranged in the column direction of the display area 810, and the display area 810 is divided into 2q + 1 (q = 20) sub-areas. A group of 40 rows of pixels 820 located in the central portion C of the display area 810 constitutes a central sub-area, and the amount of deviation is set to zero. Each of the 40 sub-areas other than the central sub-area is composed of 31 rows of pixel 820 groups. The change width W _BC is 0.025 micrometer. Therefore, the amount of deviation increases by 0.025 micrometer each time it moves from the central sub-area to the sub-area on that side, and the amount of deviation in the outermost sub-area becomes 0.5 micrometer. ing.

As shown in FIG. 7, the positions in the row direction of the separation portion 850 (sub-area boundary) that creates the difference between the first deviation amount and the second deviation amount are the first row and the first row. It is preferable that the second line adjacent to is different. By doing so, since the separation portions 850 (sub-area boundary SB) having different widths are not arranged in a row, it is possible to suppress the possibility that the user notices the existence of the separation portion 850 that makes a difference. In the present embodiment, the sub-area boundary SB is deviated by 820 minutes per pixel for each line, and three lines form one cycle.

"Amount of deviation"
FIG. 8 is a diagram for explaining the relationship between the amount of deviation and the angle of view. Next, the relationship between the amount of deviation and the angle of view will be described with reference to FIG.

The amount of deviation between the light emitting element 830 and the color filter 840 in each sub-area is determined by where the sub-area is located in the display area 810 and the angle of view from the sub-area. As shown in FIG. 8, a sealing layer 860 is formed on the upper surface of the light emitting element 830, and a color filter 840 is formed on the upper surface of the sealing layer 860. A filling layer 870 is formed on the upper surface of the color filter 840, and the sealing layer 860 to the filling layer 870 are mainly composed of organic substances. _{Let n A} be the refractive index of these three layers. A cover glass 880 is arranged on the upper surface of the packing layer 870, and quartz glass is used in this embodiment. Let the refractive index of the cover glass 880 be n _B. The upper surface of the cover glass 880 is air 890, and the refractive index of the air 890 is n _C. Further, the emission angle of the image light GL from the light emitting element 830 (the inclination angle from the normal of the display device 80) is set to θ _A, and the emission angle of the image light GL from the packing layer 870 to the cover glass 880 (the display device 80). _{Let θ B} be the angle of inclination from the normal line, _{and let θ C} be the angle of view of the image light GL from the cover glass 880 to the air 890 (the angle of inclination from the normal line of the display device 80). At this time, the law of refraction is expressed by Equation 1.

On the other hand, assuming that the amount of deviation of the color filter 840 with respect to the light emitting element 830 is L (x) and the distance from the upper surface of the light emitting element 830 to the upper surface of the color filter 840 is Z ₀ , L (x), Z ₀ and θ _A The relationship is expressed by Equation 2.

From Equation 1 and Equation 2, the angle of view θ _C and the amount of deviation L (x) are related to Equation 3.

Ideally, each sub-area generally satisfies the relationship of Equation 3. In this embodiment, Equation 3 is satisfied in the outermost sub-area. Specifically, n _A = 1.80, n _B = 1.48, n _C = 1.00, θ _A = 6.0 °, θ _B = 7.3 °, θ _C = 10.8 °, L (x = 4.68357 mm, outermost subarea) = 0.5 micrometer. As a result, the angle of view from the outermost subarea almost coincided with the design optical axis to the lens 33.

(Embodiment 2)
"Form with different sub-area boundaries"
9A and 9B are views for explaining the configuration of the sub-area boundary of the display device according to the second embodiment, FIG. 9A is a plan view of pixels near the sub-area boundary, and FIG. 9B is a cross-sectional view of pixels near the sub-area boundary. Is. Hereinafter, the display device 80 according to the second embodiment will be described with reference to FIG. The same components as those in the first embodiment are designated by the same reference numerals, and redundant description will be omitted.

In the present embodiment (FIG. 9), the configuration of the sub-area boundary SB is different from that in the first embodiment (FIG. 6). Other than that, the configuration is almost the same as that of the first embodiment. In the first embodiment (FIG. 6), the sub-area boundary SB is formed by changing the width of the separation portion 850. On the other hand, as shown in FIG. 9, in the present embodiment, the width of the separation portion 850 is the same, and the sub-area boundary SB is formed by changing the width of the color filter 840. Other configurations are the same as those in the first embodiment.

In the example of FIG. 9, the deviation amount between the center of the first light emitting element 830 belonging to the right subarea and the center of the first color filter 840 is the first deviation amount, and the second deviation amount belonging to the left subarea. The amount of deviation between the center of the light emitting element 830 and the center of the second color filter 840 is the second amount of deviation. As described above, the second deviation amount is smaller than the first deviation amount, but the difference between the first deviation amount and the second deviation amount is between the first color filter 840 and the second color filter 840. It depends on the width of another color filter 840 that is placed. The color filter 840 of a subpixel located within one subarea is constant except for a row of subpixels at the very end of the subarea (subpixels having another color filter 840). For example, the right sub-areas of Fig. 9, equal to the standard width W _CFGS standard width of the red color filter 840R W _CFRS and green color filters 840 g. On the other hand, in the blue color filter 840B, the change width W _{CFBC of the} row of blue color filters 840B forming the sub-area boundary SB is different from _{the standard width W CF} BS of the other blue color filters 840B. Standard width W _CFBS of the blue color filter 840B is equal to the standard width W _CFGS of standard width W _CFRS and green color filter 840G of the red color filter 840R. In the present embodiment, the change width W _CFBC of the blue color filter 840B of a line that forms a sub-area boundaries, the standard width of the red color filter 840R W _CFRS and the green color filter 840G of standard width W _CFGS, the standard width of the blue color filter 840B It is narrower than _{WC FBS.} In this way, the positional relationship between the light emitting element 830 and the color filter 840 can be easily adjusted simply by changing the width of the color filter 840 forming the sub-area boundary.

Further, in order to suppress the possibility that the user notices the existence of the color filter 840 that makes a difference, the difference between the first deviation amount and the second deviation amount is the difference between the first color filter 840 and the second color. It is preferably carried out by the blue color filter 840B arranged between the filter 840 and the filter 840. This is because humans have low luminosity factor in blue, so if a difference in the amount of deviation is created with the blue color filter 840B, which has low luminosity factor, it is possible to suppress the possibility of noticing the existence of the color filter 840 that creates the difference. Because. Even with such a configuration, the same effect as that of the first embodiment can be obtained.
The present invention is not limited to the above-described embodiment, and various changes and improvements can be added to the above-described embodiment. A modified example will be described below.

(Modification example 1)
"Form 1 with different arrangement of sub-area boundaries"
FIG. 10 is a diagram illustrating an arrangement of sub-area boundary SBs of the display device according to the first modification. In the first embodiment (FIG. 7), the sub-area boundary SB has three rows forming one cycle. On the other hand, in this modification, the period of the sub-area boundary SB is two lines as shown in FIG. In addition to this, the period of the sub-area boundary SB may be 4 lines or any number of lines. It may also be randomly arranged line by line. In this case, the average value for each row may correspond to the position of the sub-area boundary SB discussed in the first embodiment.

(Modification 2)
"Form 2 with different arrangement of sub-area boundaries"
FIG. 11 is a diagram illustrating an arrangement of sub-area boundaries of the display device according to the second modification. In the first embodiment (FIG. 7), the sub-area boundary SB has three rows forming one cycle. On the other hand, in this modification, as shown in FIG. 11, the sub-area boundary SB is a straight line in one row. Such a form may be used.

C ... central part, SB ... sub-area boundary, S11 ... first surface, S12 ... second surface, S13 ... third surface, S14 ... fourth surface, S15 ... fifth surface, 10 ... prism, 10e ... top surface, 10s ... Main body part, 11 ... 1st prism part, 12 ... 2nd prism part, 30 ... Projection lens, 31 ... Lens, 32 ... Lens, 33 ... Lens, 50 ... Light transmitting member, 61 ... Frame, 61e ... Bottom surface, 62 ... Lens tube, 70 ... Projection see-through device, 80 ... Display device, 100 ... Head mount display, 101 ... See-through member, 102 ... Frame, 103a ... First optical part, 103b ... Second optical part, 105a ... First built-in device Unit, 105b ... 2nd built-in device unit, 151 ... 1st display unit, 152 ... 2nd display unit, 810 ... display area, 820 ... pixel, 830 ... light emitting element, 840 ... color filter, 840B ... blue color filter, 840R ... red color filter, 840G ... green color filter, 850 ... separation part, 860 ... sealing layer, 870 ... filling layer, 880 ... cover glass, 890 ... air.

Claims (8)

With the board
The first light emitting element arranged in the display area and
In the display area, a second light emitting element arranged on the center side of the display area with respect to the first light emitting element,
A first color filter arranged corresponding to the first light emitting element, a second color filter arranged corresponding to the second light emitting element, and the like.
With reference to the first color filter and the second color filter, a lens arranged on the opposite side of the substrate and into which light emitted from the display region is incident.
With
The first deviation amount, which is the deviation amount between the center of the first light emitting element and the center of the first color filter in the plan view, is the deviation amount between the center of the second light emitting element and the second color filter in the plan view. Is larger than the second amount of deviation, which is the amount of deviation of the center of
An electronic device characterized by that. The electronic device according to claim 1, wherein the center of the first color filter in plan view is located closer to the center of the display area than the center of the first light emitting element in plan view. .. A light guide member arranged on the side opposite to the first color filter and the second color filter with the lens as a reference is provided.
The electronic device according to claim 1 or 2, wherein the light emitted from the display region is guided by the light guide member. Equipped with multiple separators to separate multiple color filters
The difference between the first deviation amount and the second deviation amount is characterized by being brought about by the width of the separation portion arranged between the first color filter and the second color filter. The electronic device according to any one of claims 1 to 3. A plurality of light emitting elements and the plurality of color filters are arranged in a matrix in the display area.
The position of the separation portion in the row direction that creates the difference between the first deviation amount and the second deviation amount is different between the first row and the second row adjacent to the first row. The electronic device according to claim 4, wherein the electronic device is characterized by the above. The difference between the first deviation amount and the second deviation amount is caused by the width of another color filter arranged between the first color filter and the second color filter. The electronic device according to any one of claims 1 to 3. The first color filter and the second color filter are either a red color filter, a green color filter, or a blue color filter, respectively.
The electronic device according to claim 6, wherein the other color filter is the blue color filter. A plurality of light emitting elements and a plurality of color filters are arranged in a matrix in the display area.
The electronic device according to claim 6 or 7, wherein the position of the other color filter in the row direction is different between the first row and the second row adjacent to the first row. ..

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