JP6547822B2 - Display device and electronic device - Google Patents

Description

  The present invention relates to a display device and an electronic device.

  In recent years, as a virtual image display device capable of forming and observing a virtual image as in a head mounted display, a head mounted display of a type for guiding image light from a display element to the pupil of an observer has been proposed. In such a virtual image display device, as described in Patent Document 1, a see-through optical system in which image light and external light are superimposed is adopted.

JP, 2013-200553, A

  However, in the virtual image display device described in Patent Document 1, there is a problem that it is difficult to simultaneously achieve the image quality of the display image and the miniaturization of the electronic device such as the head mounted display. In the conventional virtual image display device, when the display image is brightened to have 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 so as not to give the user a sense of discomfort when applied to an electronic device, and that displays a high quality image.

  The present invention has been made to solve at least a part of the above-mentioned problems, and can be realized as the following modes 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 emission. And a second color filter through which light from the element passes, wherein 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 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, the color filter is disposed in alignment with the optical axis from the light emitting element, so the angle of view can be expanded while maintaining the size of the light emitting element to some extent. Therefore, the image quality of the display image and the miniaturization of the electronic device such as the head mounted display can be achieved at the same time.

Application Example 2 In the display device according to Application Example 1, the first light emitting element, the first color filter, the second light emitting element, and the second color filter are disposed in the display area, and The optical axis from one light emitting element is inclined toward the center of the display area from the normal to the first light emitting element, and the center of the first color filter in plan view is the first in the plan view. It is preferable that the center of the display area is shifted with respect to the center of the light emitting element.
In a display device of an electronic device such as a head mounted display having a focusing optical system, an optical axis from the light emitting element is inclined toward the center of the display region except for the center of the display region. Therefore, with this configuration, since the color filter is disposed offset to the center with respect to the light emitting element, the angle of view can be expanded while maintaining the size of the light emitting element to a certain extent. That is, it is possible to achieve both downsizing of an electronic device such as a head mount display having a condensing optical system and high quality of an image displayed on the electronic device.

Application Example 3 In the display device described in Application Example 2, the second light emitting element and the second color filter are formed of the first light emitting element and the first color filter in the display area. The displacement amount between the center of the first light emitting element and the center of the first color filter in plan view is the first displacement amount, and the center of the second light emitting element in the plan view and the second When the amount of deviation from the center of the second color filter is defined as a second amount of deviation, the second amount of deviation is preferably smaller than the first amount of deviation.
In a display device of an electronic device such as a head-mounted display having a focusing optical system, the inclination of the optical axis from the light emitting element becomes larger as the outside of the display area. With this configuration, the amount of displacement 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 can be increased while maintaining the size of the light emitting element to some extent. Can. That is, it is possible to achieve both downsizing of an electronic device such as a head mount display having a condensing optical system and high quality of an image displayed on the electronic device.

Application Example 4 The display device according to Application Example 3 further includes a separation unit that separates the color filters, and the difference between the first displacement amount and the second displacement amount is the difference between the first color filter and the second displacement amount. Preferably, it is provided by the width of the separation part disposed 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 only by changing the width of the separation portion.

Application Example 5 In the display device described in Application Example 3 above, the color filter includes a red color filter, a green color filter, and a blue color filter, and the first shift amount and the second shift amount can be obtained. The difference is preferably provided by the width of the separating part which is arranged between the first color filter and the second color filter and which separates the red color filter and the blue color filter.
Human vision is high in green. Therefore, with this configuration, a green color filter with high visibility is avoided to create a difference in shift amount, so that the possibility of the user noticing the presence of the separation portion producing the difference can be suppressed.

Application Example 6 In the display device according to the application example 4 or 5, the light emitting elements and the color filters are arranged in a matrix in the display area, and the difference between the first shift amount and the second shift amount It is preferred that the rowwise position of the separating part producing X.sub.x is different in the first row and in the second row adjacent to the first row.
According to this configuration, since the separation portions having different widths do not form a line, it is possible to suppress the possibility that the user notices the presence of the separation portions that make a difference.

Application Example 7 In the display device according to Application Example 3, the difference between the first displacement amount and the second displacement amount is disposed between the first color filter and the second color filter. Preferably it is provided by 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 only by 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 preferred.
People have low visibility in blue. Therefore, with this configuration, since the difference of the shift amount is created using the blue color filter with low visibility, the possibility of the user noticing the presence of the color filter creating the difference can be suppressed.

Application Example 9 In the display device according to the application example 7 or 8, the light emitting elements and the color filters are arranged in a matrix in the display area, and the positions of the other color filters in the row direction are It is preferable that the first row and the second row adjacent to the first row be different.
According to this configuration, since different color filters having different widths do not form a line, it is possible to suppress the possibility that the user notices the presence of another color filter producing a difference.

Application Example 10 An electronic apparatus comprising the display device according to any one of the application examples 1 to 9.
With this configuration, it is possible to achieve both the miniaturization of the electronic device such as the head mounted display and the high quality of the image displayed on the electronic device.

BRIEF DESCRIPTION OF THE DRAWINGS The figure explaining the outline | summary of the electronic device concerning this embodiment. The figure explaining the internal structure of the electronic device concerning this embodiment. FIG. 2 is a view for explaining an optical system of the electronic device according to the embodiment. FIG. 2 is a view for explaining a display device according to the present embodiment. FIG. 8 is a diagram for explaining a display device according to a comparative example. The figure explaining the composition of a subarea boundary. The figure explaining arrangement of a subarea boundary. FIG. 7 is a diagram for explaining the relationship between the amount of deviation and the angle of view. FIG. 7 is a diagram for explaining the configuration of subarea boundaries of a display device according to a second embodiment. FIG. 7 is a view for explaining the arrangement of subarea boundaries of a display device according to a first modification; FIG. 10 is a view for explaining the arrangement of subarea boundaries of a display device according to a second modification;

  Hereinafter, embodiments of the present invention will be described using the drawings. In the following drawings, in order to make each layer and each member have a size that can be recognized in the drawing, the scale is different for each layer and each member.

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

  The head mounted display 100 is an example of the 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 a spectacle-like appearance. The user wearing the head mounted display 100 visually recognizes the video light GL (see FIG. 3) to be an image, and also allows the user to visually recognize external light by see-through. In short, the head mounted display 100 has a see-through function of overlapping and displaying the ambient light and the image light GL, and is compact and lightweight while having a wide angle of view and high performance.

  The head mounted display 100 is added to the fluoroscopic member 101 covering the front of the user's eyes, the frame 102 supporting the fluoroscopic member 101, and the portion from the cover to the rear temple (temples) at both left and right ends of the frame 102 A first built-in device unit 105a and a second built-in device unit 105b are provided. The fluoroscopic member 101 is a thickly curved optical member (transmissive eye cover) that covers the front of the user's eye, and is divided into a first optical portion 103 a and a second optical portion 103 b. The first display unit 151 in which the left first optical unit 103a and the first built-in device unit 105a are combined in FIG. 1 is a portion for displaying a virtual image for the right eye by see-through. It functions as an electronic device. In addition, the second display unit 152 in which the second optical part 103b on the right side and the second built-in device part 105b in FIG. It functions as an attached electronic device.

"Internal structure of electronic equipment"
FIG. 2 is a view for explaining the internal structure of the electronic device according to the present embodiment. FIG. 3 is a view for explaining an optical system of the electronic device according to the present embodiment. Next, the internal structure of the electronic device and the optical system will be described with reference to FIGS. 2 and 3. Although the first display unit 151 is described as an example of the electronic device in FIGS. 2 and 3, the second display unit 152 is also symmetrical about the second display unit 152 and has almost the same structure.

  As shown in FIG. 2, the first display unit 151 includes a projection fluoroscope 70 and a display 80 (see FIG. 3). The projection and fluoroscopy apparatus 70 includes a prism 10 which is a light guide member, a light transmission member 50, and a projection lens 30 (see FIG. 3) for imaging. The prism 10 and the light transmitting member 50 are integrated by bonding, for example, firmly fixed to the lower side of the frame 61 such that the upper surface 10 e of the prism 10 and the lower surface 61 e of the frame 61 are in contact. The projection lens 30 is fixed to the end of the prism 10 via a lens barrel 62 which 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 80 are first built-in in FIG. It corresponds to the device unit 105a.

  In the projection fluoroscope 70, the prism 10 is an arc-shaped member curved along the face in plan view, and the first prism portion 11 on the center side near the nose and the second on the peripheral side away from the nose It can be divided into the prism portion 12 and considered. The first prism portion 11 is disposed on the light emission 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 disposed 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. Among these, the first surface S11 is adjacent to the fourth surface S14, the third surface S13 is adjacent to the fifth surface S15, and the second surface S12 is disposed between the first surface S11 and the third surface S13. It is done. The prism 10 also has an upper surface 10 e adjacent to the first surface S11 to the fourth surface S14.

  The prism 10 is formed of a resin material that exhibits high light transmittance in the visible range, and is molded, for example, by injecting and solidifying a thermoplastic resin in a mold. The main body portion 10s (see FIG. 3) of the prism 10 is an integrally formed product, but can be considered as being divided into the first prism portion 11 and the second prism portion 12. The first prism portion 11 makes it possible to guide and emit the image light GL, as well as to allow perspective of external light. The second prism portion 12 enables incidence and wave guiding of the image light GL.

  The light transmitting member 50 is integrally fixed to the prism 10. The light transmitting member 50 is a member (auxiliary prism) that assists the fluoroscopic function of the prism 10. The light transmitting member 50 is formed of a resin material that exhibits high light transmittance in the visible range and has a refractive index substantially the same as that of the main body portion 10 s 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 and 33 along the incident side optical axis. Each of the lenses 31, 32, and 33 is a lens rotationally symmetric about the central axis of the light incident surface of the lens, and at least one or more of the lenses 31, 32, and 33 is an aspheric lens. The projection lens 30 causes the image light GL emitted from the display device 80 to be incident on the inside of the prism 10 and to form an image on the eye EY again. In short, the projection lens 30 is a relay optical system for re-forming the image light GL emitted from each pixel 820 of the display device 80 on the eye EY through 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.

  In the display device 80, pixels 820 are arranged in a matrix of M rows and N columns. M and N are integers of 2 or more, and in the present embodiment, M = 720 and N = 1280, for 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 light emitted from the light emitting element 830 passes. The light emitting element 830 emits white light, and in this embodiment, an organic EL element is used as an example. As the light emitting element 830, other than this, an LED element, a semiconductor laser element, or the like can be used. In the present 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 light from the corresponding light emitting element 830 into red light, green light, and blue light. Image light GL. In addition to this, it is also possible to prepare a color filter 840 for white light (effectively, a sub-pixel without the color filter 840) for the color filter 840 as p = 4, or Besides, 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 (precisely, each sub-pixel) is shifted for each pixel 820 (precisely, every sub-pixel). Since the display device 80 according to the present embodiment corrects this deviation, it is possible to allow the user to visually recognize a bright and high resolution image. Next, this point will be described.

"Display device configuration"
FIG. 4 is a view for explaining the display device according to the present embodiment, in which (a) is a cross-sectional view of the whole, (b) a plan view of a pixel, and (c) a cross-sectional view of the pixel. FIG. 5 is a view for explaining a display device according to a comparative example, in which (a) is a plan view of a pixel and (b) is a cross-sectional view of the pixel. 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 the comparative example, in order to make it easy to understand, the same names and reference numerals are used for parts showing the same functions as the display device according to the present embodiment. Also, in the following figures, in order to make the description easy to understand, an orthogonal coordinate system of x, y and z is introduced, the axis along the normal of the display device is the z axis, and the pixel 820 has M rows in the display device. The axis aligned in the vertical direction (axis along the extending direction of the column) is y axis, and in the display device, the axis (pixel along the extending direction of the row) in which the pixels 820 line up horizontally in the N column is x axis. Further, in the following drawings, in order to make the description easy to understand, the scale is arbitrary, and the scale is different for each part in one drawing.

  As shown in FIG. 4A, the display device 80 has a display area 810. The optical axis of the video light GL from the pixel 820 located at the central portion C of the display area 810 is substantially along the normal of the display device, but the video 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. Similarly, the optical axis of the video light GL from the pixel 820 located at the right end portion R of the display device is inclined to the left from the normal of the display device. As described above, in the display device 80 of the electronic device such as the head mounted display 100 having the condensing optical system, the optical axis from the light emitting element 830 is inclined toward the center of the display area 810 except for the center part of the display area 810 Do. Therefore, in the display device 80 according to the present embodiment, the display area 810 is divided into 2q + 1 sub areas, and the relative position between the center of the light emitting element 830 and the center of the color filter 840 in pixels 820 belonging to different sub areas. The relationship is configured to be different. Here, q is an integer of 1 or more, and in the present embodiment, q = 20. That is, the display area 810 includes 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 subareas of 20 subareas 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 (b L) 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 (b C) is a plan view of the pixel 820 located in the central portion C of the display area 810. 4B is a plan view of the pixel 820 located on the right side of the central portion C of the display area 810. FIG. 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 in the central portion C of the display area 810. 4C is a cross-sectional view of the pixel 820 located on the right side of the central portion C of the display area 810. FIG. 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. These are, as an example, a pixel 820 located on the left side of the central portion C shown in FIG. 4 (bL) and FIG. 4 (cL), and the central portion C shown in FIG. 4 (bR) and FIG. Are also included in the pixel 820, etc. located on the right side. In addition, the display device 80 includes a second light emitting element 830 and a second color filter 840 through which light from the second light emitting element 830 passes. These are included, for example, in the pixel 820 located in the central portion C shown in FIG. 4 (bC) or FIG. 4 (cC). 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 the inner side.

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

  The shift amount between the center of the first light emitting element 830 in plan view and the center of the first color filter 840 is a first shift amount, and the center of the second light emitting element 830 in plan view and the second When the amount of deviation from the center of the color filter 840 is a second amount of deviation, the second amount of deviation is smaller than the first amount of deviation. As an example, in the pixel 820 located at the central portion C shown in FIG. 4 (b C) or FIG. 4 (c C), the second shift amount is zero, and 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, the pixel 820 located on the left side of the central portion C shown in FIG. 4 (bL) and FIG. 4 (cL), and the central portion C shown in FIG. 4 (bR) and FIG. In the pixel 820 located on the right side, the first shift amount is a finite positive value, and the second shift amount is smaller than the first shift amount.

  In short, the color filter 840 is disposed in alignment with the optical axis from the light emitting element 830 for each sub area. In addition, as the center portion C of the display area 810 is separated, the color filter 840 is disposed to be largely deviated from the center side of the display area 810 with respect to the light emitting element 830. In the display device 80 of the electronic device having the 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 The amount of deviation between the light emitting element 830 and the color filter 840 is adjusted in accordance with the above.

  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) that the optical axis from the pixel 820 forms with the normal to 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, in any pixel 820 of the display area 810, the center of the light emitting element 830 and the center of the color filter 840 coincide with each other. Therefore, as the resolution is increased, the angle of view increases toward the outside of the display area 810, and the light emitting element 830 has to be made smaller. Therefore, the image light GL is weak and dark. That is, conventionally, it has been impossible to simultaneously achieve high resolution and bright display. On the other hand, in the display device according to the present embodiment, even if the angle of view is increased outside the display area 810 by increasing the resolution, the size of the light emitting element 830 can be maintained to a certain extent. The strength of light GL can be maintained. In other words, in the display device according to the present embodiment, high resolution and bright display are compatible, and miniaturization of the electronic device such as the head mounted display 100 having the condensing optical system and the display thereof are performed. And high quality of the image. As an example, the length in the row direction of subpixels is 7.5 micrometers, the width in the column direction of subpixels is 2.5 micrometers, and the length in the row direction of light emitting elements 830 is 6.1 micrometers In this case, the width in the column direction of the light emitting element 830 of the comparative example is 1.1 micrometers, but the width in the column direction of the light emitting element 830 of this embodiment is 1.8 micrometers. That is, the area of the light-emitting element 830 of this embodiment can be 1.64 times the area of the light-emitting element 830 of the comparative example, which enables low voltage driving and bright display.

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

  The positional relationship between the light emitting element 830 and the color filter 840 is the same in 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 is different between the pixels 820 belonging to different sub areas. In the example of FIG. 6, the center of the light emitting element 830 substantially coincides with the center of the color filter 840 in the pixel 820 on the left of the sub area boundary SB, but in the pixel 820 on the right The center of the filter 840 is offset to the left. Next, the configuration of sub area boundary SB will be described.

The display device 80 according to the present embodiment includes a separation unit 850 that divides the color filter 840. The separating unit 850 is a member that suppresses mixing of color materials of the color filter 840, is a bank when forming the color filter 840 by a printing method, or is called a so-called black matrix for avoiding color mixing. It is a thing. In the example of FIG. 6, the shift amount between the center of the first light emitting element 830 belonging to the right sub area and the center of the first color filter 840 is the first shift amount, and the second shift belongs to the left sub area The amount of displacement between the center of the light emitting element 830 and the center of the second color filter 840 is a second amount of displacement. As described above, although the second deviation amount is smaller than the first deviation amount, 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. This is provided by the width of the separating part 850 which is arranged. A separating unit 850 for dividing sub-pixels located in one sub-area is constant with a standard width W _BS . On the other hand, if the sub-areas to which these belong are different even if they are adjacent sub-pixels, the separating unit 850 has a change width _WBC . The standard width W _BS and the change width W _BC are different from each other, and in the present embodiment, the change width W _BC is narrower than the standard width W _BS . Thus, 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.

Furthermore, to reduce the possibility of the user being aware of the presence of the separating portion 850 producing a difference, the difference between the first displacement amount and the second displacement amount is determined by the first color filter 840 and the second color. This is provided by changing the width of the separating portion 850 which is disposed between the filter 840 and separates the red color filter 840R and the blue color filter 840B. By this, because human visual sensitivity is high green, and create a difference in the amount of deviation to avoid the high visibility green color filter 840G, less likely to notice the presence of the separating portion 850 which is a change width W _BC is there.

In this 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) subareas. The 40 columns of pixels 820 located in the central portion C of the display area 810 constitute a central subarea, and the amount of deviation is set to zero. Each of the 40 subareas other than the central subarea is composed of 31 columns of pixels 820. The change width W _BC is set to 0.025 micrometers. Therefore, the shift amount is increased by 0.025 micrometers each time one shift is made from the central sub area to the sub area on that side, and the shift amount in the outermost sub area is 0.5 micrometer. ing.

  As shown in FIG. 7, the position in the row direction of the separating portion 850 (sub area boundary) producing the difference between the first displacement amount and the second displacement amount is the first row and the first row. In the second row adjacent to, it is preferable that they be different. In this case, since the separation portions 850 (sub area boundaries SB) having different widths do not form a single row, the possibility of the user noticing the presence of the separation portions 850 producing a difference can be suppressed. In the present embodiment, the subarea boundary SB is shifted by one pixel 820 every row, and one cycle is formed by three rows.

"Displacement amount"
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 that sub area. As shown in FIG. 8, a sealing layer 860 is formed on the top surface of the light emitting element 830, and a color filter 840 is formed on the top surface of the sealing layer 860. A filler layer 870 is formed on the upper surface of the color filter 840, and the layers from the sealing layer 860 to the filler layer 870 are mainly composed of organic matter. Let the refractive index in these three layers be n _A. A cover glass 880 is disposed on the upper surface of the filling layer 870, and quartz glass is used in this embodiment. The refractive index of the cover glass 880 is n _B. The upper surface of the cover glass 880 is air 890, and the refractive index of the air 890 is n _C. Furthermore, the emission angle of the image light GL from the light emitting element 830 (tilt angle from the normal to the display device 80) is θ _A, and the emission angle of the image light GL from the filling layer 870 to the cover glass 880 (display device 80 the inclination angle) from the normal and theta _B, angle of the image light GL from the cover glass 880 to air 890 (slope angle from the normal of the display device 80) to theta _C. At this time, the law of refraction is expressed by Equation 1.

On the other hand, the shift amount of the color filter 840 to the light emitting element 830 and L (x), and the distance from the upper surface of the light emitting element 830 to a color filter 840 top and Z _0, L (x) and Z ₀ and the theta _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) have a relationship of Equation 3.

It is ideal to substantially satisfy the relationship of Formula 3 in each sub area. In the present embodiment, Formula 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 micrometers. As a result, the angle of view from the outermost subarea almost coincides with the design optical axis to the lens 33.

Second Embodiment
"Form that changed the subarea boundary"
FIG. 9 is a diagram for explaining the configuration of the subarea boundary of the display device according to Embodiment 2. (a) is a plan view of a pixel near the subarea boundary It is. Hereinafter, the display device 80 according to the second embodiment will be described with reference to FIG. In addition, about the component site | part same as Embodiment 1, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

  The present embodiment (FIG. 9) is different from the first embodiment (FIG. 6) in the configuration of the sub area boundary SB. The other configuration is almost the same as that of the first embodiment. In the first embodiment (FIG. 6), the subarea boundary SB is formed by changing the width of the separation unit 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 difference is that the sub-area boundary SB is formed by changing the width of the color filter 840. The other configuration is the same as that of the first embodiment.

In the example of FIG. 9, the amount of deviation between the center of the first light emitting element 830 belonging to the right sub area and the center of the first color filter 840 is the first deviation amount, and the second part belonging to the left sub area The amount of displacement between the center of the light emitting element 830 and the center of the second color filter 840 is a second amount of displacement. As described above, although the second deviation amount is smaller than the first deviation amount, 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. This is provided by the width of the other color filters 840 being placed. The color filters 840 of the sub-pixels located in one sub-area are constant, except for a row of sub-pixels at the end of the sub-area (sub-pixels 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} one row of blue color filter 840B forming the sub area boundary SB is different from the standard width W _{CFBS of the} other blue color filter 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 W _CFBS . As described above, the positional relationship between the light emitting element 830 and the color filter 840 can be easily adjusted only by changing the width of the color filter 840 forming the sub area boundary.

Furthermore, in order to reduce the possibility that the user notices the presence of the color filter 840 creating 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 amount. Preferably provided by a blue color filter 840 B disposed between the filter 840. This is because human's visual sensitivity is low in blue, so creating a difference in the amount of deviation with the blue color filter 840B with low visibility can suppress the possibility of noticing the presence of the color filter 840 producing the difference. It is from. The same effect as Embodiment 1 is acquired also as such composition.
The present invention is not limited to the above-described embodiment, and various modifications and improvements can be added to the above-described embodiment. A modification is described below.

(Modification 1)
"Form 1 where the arrangement of subarea boundaries is different"
FIG. 10 is a view for explaining the arrangement of the subarea boundary SB of the display device according to the first modification. In the first embodiment (FIG. 7), the subarea boundary SB has one cycle with three lines. On the other hand, in the present modification, as shown in FIG. 10, the period of the sub area boundary SB is two lines. Besides this, the period of the sub area boundary SB may be 4 lines or any number of lines. Also, it may be randomly arranged for each row. In this case, the average value for each row may correspond to the position of the subarea boundary SB discussed in the first embodiment.

(Modification 2)
"Form 2 with different arrangement of subarea boundaries"
FIG. 11 is a diagram for explaining the arrangement of the subarea boundaries of the display device according to the second modification. In the first embodiment (FIG. 7), the subarea boundary SB has one cycle with three lines. On the other hand, in the present modification, as shown in FIG. 11, the subarea boundary SB is a straight line in one row. Such a form may be used.

  C: central portion, SB: subarea boundary, S11: first surface, S12: second surface, S13: third surface, S14: fourth surface, S15: fifth surface, 10: prism, 10e: upper surface, 10s ... Body part, 11 ... 1st prism part, 12 ... 2nd prism part, 30 ... projection lens, 31 ... lens, 32 ... lens, 33 ... lens, 50 ... light transmission member, 61 ... frame, 61 e ... bottom surface, 62 ... lens barrel 70 70 projection fluoroscope 80 display device 100 head mount display 101 fluoroscopic member 102 frame 103a first optical portion 103b second optical portion 105a first built-in device Unit 105b Second built-in unit 151 First display unit 152 Second display unit 810 Display area 820 Pixel 830 Light-emitting element 840 Color filter 840B The blue color filter, 840R ... red color filter, 840G ... the green color filter, 850 ... separation unit, 860 ... sealing layer, 870 ... filling layer, 880 ... cover glass, 890 ... air.

Claims (11)

A first light emitting element;
A second light emitting element,
A sealing layer on the top surface of the first light emitting element and the second light emitting element;
A first color filter through which light from the first light emitting element passes;
A second color filter through which light from the second light emitting element passes;
And a condensing optical system provided on the side opposite to the sealing layer in the first color filter and the second color filter ,
The first color filter and the second color filter are formed in contact with the sealing layer,
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 the same as the center of the second light emitting element and the second color in plan view. Unlike the relative positional relationship between the center of the filter,
A first optical axis passing from the center of the first light emitting element to the center of the first color filter is a second optical axis passing from the center of the second light emitting element to the center of the second color filter Approaching,
A display apparatus characterized in that the light of the first optical axis and the light of the second optical axis are condensed by the condensing optical system . The first light emitting element, the first color filter, the second light emitting element, and the second color filter are disposed in a display area,
It said first optical axis is inclined from the normal to the center side of the display region with respect to the first light emitting element,
The center of the first color filter in a plan view is shifted to the center side of the display area with respect to the center of the first light emitting element in a plan view. Display device. The second light emitting element and the second color filter are disposed inside the first light emitting element and the first color filter in the display area,
The shift amount between the center of the first light emitting element in plan view and the center of the first color filter is a first shift amount, and the center of the second light emitting element in plan view and the second 3. The display device according to claim 2, wherein the second displacement amount is smaller than the first displacement amount when the displacement amount from the center of the color filter is a second displacement amount. It further comprises a separation unit for separating the color filter,
The difference between the first displacement amount and the second displacement amount is provided by the width of a separation portion disposed between the first color filter and the second color filter. The display device according to claim 3. A first light emitting element;
A second light emitting element,
A sealing layer on the top surface of the first light emitting element and the second light emitting element;
A first color filter through which light from the first light emitting element passes;
A second color filter through which light from the second light emitting element passes;
The first color filter and the second color filter are formed in contact with the sealing layer,
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 the same as the center of the second light emitting element and the second color in plan view. Unlike relative position with the center of the filter,
The first light emitting element, the first color filter, the second light emitting element, and the second color filter are disposed in a display area,
The optical axis from the first light emitting element is inclined toward the center of the display area from the normal to the first light emitting element,
The center of the first color filter in plan view is shifted to the center side of the display area with respect to the center of the first light emitting element in plan view,
The second light emitting element and the second color filter are disposed inside the first light emitting element and the first color filter in the display area,
The shift amount between the center of the first light emitting element in plan view and the center of the first color filter is a first shift amount, and the center of the second light emitting element in plan view and the second The second deviation amount is smaller than the first deviation amount, where the second deviation amount is the deviation amount from the center of the color filter.
The color filters include red color filters, green color filters and blue color filters.
The difference between the first displacement amount and the second displacement amount is disposed between the first color filter and the second color filter, and divides the red color filter and the blue color filter. A display device characterized by being provided by the width of the separation part. The light emitting elements and the color filters are arranged in a matrix in the display area,
The position in the row direction of the separation part which creates the difference between the first shift amount and the second shift amount is different between the first row and the second row adjacent to the first row. The display device according to claim 5, characterized in that: A first light emitting element;
A second light emitting element,
A sealing layer on the top surface of the first light emitting element and the second light emitting element;
A first color filter through which light from the first light emitting element passes;
A second color filter through which light from the second light emitting element passes;
The first color filter and the second color filter are formed in contact with the sealing layer,
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 the same as the center of the second light emitting element and the second color in plan view. Unlike relative position with the center of the filter,
The first light emitting element, the first color filter, the second light emitting element, and the second color filter are disposed in a display area,
The optical axis from the first light emitting element is inclined toward the center of the display area from the normal to the first light emitting element,
The center of the first color filter in plan view is shifted to the center side of the display area with respect to the center of the first light emitting element in plan view,
The second light emitting element and the second color filter are disposed inside the first light emitting element and the first color filter in the display area,
The shift amount between the center of the first light emitting element in plan view and the center of the first color filter is a first shift amount, and the center of the second light emitting element in plan view and the second The second deviation amount is smaller than the first deviation amount, where the second deviation amount is the deviation amount from the center of the color filter.
The light emitting elements and the color filters are arranged in a matrix in the display area,
The position in the row direction of the separation part which creates the difference between the first shift amount and the second shift amount is different between the first row and the second row adjacent to the first row. Display device characterized by things. A first light emitting element;
A second light emitting element,
A sealing layer on the top surface of the first light emitting element and the second light emitting element;
A first color filter through which light from the first light emitting element passes;
A second color filter through which light from the second light emitting element passes;
The first color filter and the second color filter are formed in contact with the sealing layer,
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 the same as the center of the second light emitting element and the second color in plan view. Unlike relative position with the center of the filter,
The first light emitting element, the first color filter, the second light emitting element, and the second color filter are disposed in a display area,
The optical axis from the first light emitting element is inclined toward the center of the display area from the normal to the first light emitting element,
The center of the first color filter in plan view is shifted to the center side of the display area with respect to the center of the first light emitting element in plan view,
The second light emitting element and the second color filter are disposed inside the first light emitting element and the first color filter in the display area,
The shift amount between the center of the first light emitting element in plan view and the center of the first color filter is a first shift amount, and the center of the second light emitting element in plan view and the second The second deviation amount is smaller than the first deviation amount, where the second deviation amount is the deviation amount from the center of the color filter.
The difference between the first shift amount and the second shift amount may be provided by the width of another color filter disposed between the first color filter and the second color filter. And a display device. The color filters include red color filters, green color filters and blue color filters.
The display device according to claim 8 , wherein the another color filter is the blue color filter. The light emitting elements and the color filters are arranged in a matrix in the display area,
Positions in the row direction of the further color filters in the second row adjacent to the first row and the first row, different things are display device according to claim 8 or 9, characterized in . An electronic device comprising the display device according to any one of claims 1 to 10 .

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