Optical device

Abstract

The present disclosure relates to an optical device, which includes: a display device configured to display an image; and a lens including a plurality of reflectors, which reflect the image from the display device to a first surface of the lens, wherein the plurality of reflectors include: a first reflector; and a second reflector having a size different from that of the first reflector.

Description

Technical Field

[0001] Exemplary embodiments of the inventive concept relate to an optical device, and more particularly, to an optical device for providing augmented reality. Background Art

[0002] Augmented reality is an interactive experience of a real-world environment in which objects residing in the real world are enhanced by computer-generated perceptual information. For example, augmented reality technology may involve overlaying a virtual image on a real image as seen by the user's eyes and showing the two images as a single image. The virtual image may include an image in the form of text or graphics, and the real image may include an actual image of an object observed in the field of view of the device.

[0003] The optical device for providing augmented reality may include a plurality of optical components that change the optical path of a virtual image displayed on a display device to provide the virtual image to the user's eyes. The virtual image provided to the user's eyes by the plurality of optical components may be provided in a two-dimensional manner. Summary of the invention

[0004] According to an exemplary embodiment of the inventive concept, an optical device includes: a display device configured to display an image; and a lens including a plurality of reflectors that reflect the image from the display device to a first surface of the lens. The plurality of reflectors include: a first reflector; and a second reflector having a size different from that of the first reflector.

[0005] According to another exemplary embodiment of the present inventive concept, an optical device includes: a display device configured to display an image; and a lens including a plurality of reflectors that reflect the image from the display device to a first surface of the lens. The plurality of reflectors include a first reflector and a second reflector, and a size of each of the first reflectors is different from a size of each of the second reflectors.

[0006] According to another exemplary embodiment of the inventive concept, an optical device includes: a display device configured to display an image; and a lens including a plurality of reflectors that reflect the image from the display device to a first surface of the lens. The lens also includes: a first lens having a first inclined surface; a second lens having a second inclined surface facing the first inclined surface; and a reflector substrate disposed between the first inclined surface of the first lens and the second inclined surface of the second lens, and the reflector substrate has a first surface on which the plurality of reflectors are disposed.

[0007] According to another exemplary embodiment of the inventive concept, an optical device includes: a display device configured to display an image; and a lens including a plurality of reflectors that reflect the image from the display device to a first surface of the lens. The plurality of reflectors include a first reflector, a second reflector, a third reflector, and a fourth reflector, and the second reflector and the fourth reflector are disposed between the first reflector and the third reflector in a width direction of the lens.

[0008] According to another exemplary embodiment of the present invention, an optical device includes: a display device configured to display an image; and a lens including a plurality of reflectors that reflect the image from the display device to a first surface of the lens, wherein the plurality of reflectors include: a first reflector; and a second reflector having a size smaller than that of the first reflector, wherein the second reflector is further away from a first side of a reflector substrate extending longitudinally in the first direction than the first reflector in a second direction perpendicular to the first direction, and wherein the first side of the reflector substrate is adjacent to the first surface of the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The above and other features of the present inventive concept will become more apparent by describing in detail exemplary embodiments of the present inventive concept with reference to the accompanying drawings, in which:

[0010] Figure 1 is a perspective view illustrating an optical device according to an exemplary embodiment of the present inventive concept;

[0011] Figure 2 is an exploded perspective view illustrating an optical device according to an exemplary embodiment of the present inventive concept;

[0012] Figure 3 is a view illustrating an augmented reality providing method in an optical device according to an exemplary embodiment of the present inventive concept;

[0013] Figure 4 is a diagram showing an exemplary embodiment according to the inventive concept Figures 1 to 3 An exploded perspective view of a right eye lens and a reflector;

[0014] Figure 5 It is shown Figure 4 A side view of an example of a right eye lens and a reflector;

[0015] Figure 6 It is shown Figure 4 and Figure 5 A plan view of an example of a reflector substrate of a reflector;

[0016] Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 are views each showing a virtual image shown to a user according to a size of a reflector according to an exemplary embodiment of the present inventive concept;

[0017] Fig.13 It is shown Figure 4 and Figure 5 A plan view of an example of a reflector substrate of a reflector;

[0018] Fig.14 It is shown Figure 4 and Figure 5 A plan view of an example of a reflector substrate of a reflector;

[0019] Fig.15 It is shown Figure 4 and Figure 5 A plan view of an example of a reflector substrate of a reflector;

[0020] Fig.16 It is shown Figure 4 and Figure 5 A plan view of an example of a reflector substrate of a reflector;

[0021] Fig.17 It is shown Figure 4 and Figure 5 A plan view of an example of a reflector substrate of a reflector;

[0022] Fig.18 It is shown Figure 4 and Figure 5 A plan view of an example of a reflector substrate of a reflector;

[0023] Fig.19 It is shown Figure 4 and Figure 5 A plan view of an example of a reflector substrate of a reflector;

[0024] Fig. 20 It is shown Figures 1 to 3 An exploded perspective view of an example of a right eye lens and a reflector;

[0025] Fig.21 It is shown Fig. 20 A side view of an example of a right eye lens and a reflector;

[0026] Fig. 22 It is shown Figure 2 a plan view of an example of a first display device; and

[0027] Fig.23 It is shown in detail Fig. 22A cross-sectional view of a display area of ​​a first display panel. DETAILED DESCRIPTION

[0028] Hereinafter, exemplary embodiments of the inventive concept will be described more fully with reference to the accompanying drawings.Throughout the drawings, like reference numerals may refer to like elements.

[0029] It will be understood that when a component such as a film, region, layer, or element is referred to as being "on," "connected to," "coupled to," or "adjacent to" another component, the component can be directly on, directly connected to, directly coupled to, or directly adjacent to the other component, or there may be intervening components. It will also be understood that when a component is referred to as being "between" two components, the component can be the only component between the two components, or there may be one or more intervening components. It will also be understood that when a component is referred to as "overlying" another component, the component can be the only component that overlies the other component, or one or more intervening components may also overlie the other component. Other words used to describe relationships between elements may be interpreted in a similar manner.

[0030] It will be further understood that descriptions of features or aspects within each exemplary embodiment may be used for other similar features or aspects in other exemplary embodiments, unless the context clearly dictates otherwise.

[0031] As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0032] For ease of description, spatially relative terms such as "under," "below," "below," "below," "above," "on," and the like may be used herein to describe the relationship of one element or feature to another element (or elements) or feature (or features) as shown in the accompanying drawings. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "below" or "beneath" or "below" other elements or features would subsequently be oriented "above" the other elements or features. Thus, the exemplary terms "under" and "below" may encompass both above and below orientations.

[0033] Figure 1 is a perspective view illustrating an optical device according to an exemplary embodiment of the inventive concept. Figure 2 is an exploded perspective view illustrating an optical device according to an exemplary embodiment of the inventive concept.

[0034] Reference Figure 1and Figure 2 , an optical device 1 according to an exemplary embodiment of the present inventive concept includes a supporting frame 20, a right-eye lens frame 21, a left-eye lens frame 22, a first eyeglass frame leg 31, a second eyeglass frame leg 32, a right-eye lens 110, a left-eye lens 120, a first display device 210, a second display device 220, a first convex lens 310, a second convex lens 330, a third convex lens 360, a fourth convex lens 380, a first optical path converter 320, a second optical path converter 370, and reflectors 410 and 420.

[0035] In the present specification, "above", "upper part", "top" and "upper surface" may refer to the "Z-axis direction", and "lower part", "bottom" and "lower surface" may refer to the direction opposite to the Z-axis direction. In addition, "left" and "leftward" may refer to the direction opposite to the X-axis direction, and "right" and "rightward" may refer to the X-axis direction, "up" and "upward" may refer to the Y-axis direction, and "down" and "downward" may refer to the direction opposite to the Y-axis direction.

[0036] The support frame 20 supports the right-eye lens 110 and the left-eye lens 120 together with the right-eye lens frame 21 and the left-eye lens frame 22. The right-eye lens 110 may be surrounded by the support frame 20 and the right-eye lens frame 21. The left-eye lens 120 may be surrounded by the support frame 20 and the left-eye lens frame 22.

[0037] The support frame 20 may be disposed on upper side surfaces of the right-eye lens 110 and the left-eye lens 120. The support frame 20 may extend longitudinally in a width direction of the right-eye lens 110 (X-axis direction).

[0038] The right-eye lens frame 21 may be disposed on the left side surface, the lower side surface, and the right side surface of the right-eye lens 110. The right-eye lens frame 21 may be coupled to the support frame 20. The left-eye lens frame 22 may be disposed on the left side surface, the lower side surface, and the right side surface of the left-eye lens 120. The left-eye lens frame 22 may be coupled to the support frame 20. Each of the right-eye lens frame 21 and the left-eye lens frame 22 may include a nose pad.

[0039] exist Figure 2 , the support frame 20, the right-eye lens frame 21, and the left-eye lens frame 22 are shown as being separately formed and coupled to each other, but the inventive concept is not limited thereto. The support frame 20, the right-eye lens frame 21, and the left-eye lens frame 22 may be integrally formed.

[0040] The first eyeglass frame leg 31 may be fixed to the left end of the lower side surface of the support frame 20. The second eyeglass frame leg 32 may be fixed to the right end of the lower side surface of the support frame 20. Each of the first eyeglass frame leg 31 and the second eyeglass frame leg 32 may be fixed to the support frame 20 using a fixing member such as a screw.

[0041] Each of the support frame 20, the right-eye lens frame 21, the left-eye lens frame 22, the first eyeglass frame leg 31, and the second eyeglass frame leg 32 may include plastic, metal, or both. The right-eye lens frame 21 and the left-eye lens frame 22 may be omitted.

[0042] Each of the right-eye lens 110 and the left-eye lens 120 may be formed transparently or translucently using glass or plastic. As a result, the user may view an image of the real world through the right-eye lens 110 and the left-eye lens 120. Considering the user's vision, the right-eye lens 110 and the left-eye lens 120 may each have a refractive power.

[0043] Each of the right-eye lens 110 and the left-eye lens 120 may have a hexahedral shape, the hexahedral shape including a first surface, a second surface, and a first side surface, a second side surface, a third side surface, and a fourth side surface, each of which has a quadrilateral shape. The first surface of the right-eye lens 110 is a surface facing the right eye RE of the user, and may be an exit surface through which the light from the first display device 210 is emitted by the reflector 410 of the right-eye lens 110. The second surface of the right-eye lens 110 may be an outer surface of the right-eye lens 110. The first surface of the left-eye lens 120 is a surface facing the left eye LE of the user, and may be an exit surface through which the light from the second display device 220 is emitted by the reflector 420 of the left-eye lens 120. The second surface of the left-eye lens 120 may be an outer surface of the left-eye lens 120.

[0044] Each of the right-eye lens 110 and the left-eye lens 120 is not limited to Figure 1 and Figure 2 The right-eye lens and the left-eye lens shown in the figure may be formed in a polyhedron including a first surface, a second surface and a side surface, each of which has a polygonal shape other than a quadrilateral shape. In addition, each of the right-eye lens 110 and the left-eye lens 120 may be formed in other shapes other than a polyhedron, such as a cylinder, an elliptical cylinder, a semi-cylinder, a semi-elliptical cylinder, a deformed cylinder or a deformed semi-cylinder. The deformed cylinder and the deformed semi-cylinder refer to a cylinder and a semi-cylinder, respectively, whose diameters are not constant.

[0045] The reflector 410 is disposed in the right-eye lens 110, and the reflector 420 is disposed in the left-eye lens 120. Each of the reflectors 410 and 420 may include a small mirror such as a pin mirror. For example, each of the reflectors 410 and 420 may be smaller in size than the size of the pupil of the user's right eye RE or left eye LE. For example, when each of the reflectors 410 and 420 has a circular shape in a plan view, the maximum width of each of the reflectors 410 and 420 may be tens to hundreds of microns. Since the user's pupil is focused on the real image, the user may not be able to recognize the reflectors 410 and 420. Figure 1 and Figure 2 , each of the reflectors 410 and 420 is shown to have a circular shape in a plan view, but each of the reflectors 410 and 420 may have an elliptical shape or a polygonal shape in addition to a circular shape.

[0046] The reflector 410 of the right-eye lens 110 may reflect an image displayed on the first display device 210 to provide the reflected image to the user's right eye RE. The reflector 420 of the left-eye lens 120 may reflect an image displayed on the second display device 220 to provide the reflected image to the user's left eye LE.

[0047] exist Figure 1 and Figure 2 , 11 reflectors 410 are arranged in the right-eye lens 110 and 11 reflectors 420 are arranged in the left-eye lens 120, but the number of reflectors 410 arranged in the right-eye lens 110 and the number of reflectors 420 arranged in the left-eye lens 120 are not limited thereto. For example, the number of reflectors 410 arranged in the right-eye lens 110 may be greater than or less than 11.

[0048] The first convex lens 310 may be disposed on one side surface of the right-eye lens 110, and the third convex lens 360 may be disposed on one side surface of the left-eye lens 120. The first convex lens 310 may be disposed on the upper side surface of the right-eye lens 110, and the third convex lens 360 may be disposed on the upper side surface of the left-eye lens 120. Each of the first convex lens 310 and the third convex lens 360 may be a planar convex lens or a biconvex lens.

[0049] The first optical path converter 320 may be disposed on the first convex lens 310, and the second optical path converter 370 may be disposed on the third convex lens 360. In this case, the first convex lens 310 may be disposed between the upper side surface of the right-eye lens 110 and the first optical path converter 320. Each of the first optical path converter 320 and the second optical path converter 370 may be a polyhedron including a polygonal upper surface and a lower surface. Figure 2 , each of the first light path converter 320 and the second light path converter 370 is illustrated as a pentaprism having a heptahedral shape having pentagonal upper and lower surfaces, but the inventive concept is not limited thereto.

[0050] The second convex lens 330 may be disposed on one side surface of the first optical path converter 320, and the fourth convex lens 380 may be disposed on one side surface of the second optical path converter 370. Figure 2 As shown in FIG. 1 , the second convex lens 330 may be disposed on one side surface of the first optical path converter 320 in the thickness direction (Z-axis direction) of the right-eye lens 110. The fourth convex lens 380 may be disposed on one side surface of the second optical path converter 370 in the thickness direction (Z-axis direction) of the left-eye lens 120. Figure 2 In addition to the above, the first convex lens 310 may be disposed on the other side surface of the first optical path converter 320 in the height direction (Y-axis direction) of the right-eye lens 110. In addition, the third convex lens 360 may be disposed on the other side surface of the second optical path converter 370 in the height direction (Y-axis direction) of the left-eye lens 120. Each of the second convex lens 330 and the fourth convex lens 380 may be a planar convex lens or a biconvex lens.

[0051] Each of the first display device 210 and the second display device 220 displays a virtual image for implementing augmented reality. The first display device 210 may include a first display panel 211, a first circuit board 212, and a first driving circuit 213. The second display device 220 may include a second display panel 221, a second circuit board 222, and a second driving circuit 223.

[0052] The first display panel 211 may be disposed on the second convex lens 330 in the thickness direction (Z-axis direction) of the right-eye lens 110. The second display panel 221 may be disposed on the fourth convex lens 380 in the thickness direction (Z-axis direction) of the left-eye lens 120.

[0053] Each of the first display panel 211 and the second display panel 221 may be a flexible display panel having flexibility and thus may be rolled, bent, or folded. For example, each of the first display panel 211 and the second display panel 221 may include an organic light emitting display panel or an organic light emitting display panel including quantum dots. In this specification, each of the first display panel 211 and the second display panel 221 will be mainly described as follows: Fig.23 The organic light emitting display panel shown in .

[0054] The first circuit board 212 may be attached to one end of the first display panel 211. The second circuit board 222 may be attached to one end of the second display panel 221. Each of the first circuit board 212 and the second circuit board 222 may be a flexible printed circuit board and thus may be rolled, bent, or folded.

[0055] A power supply unit configured to supply power to the first display device 210 and the second display device 220 may be embedded in one of the first eyeglass frame leg 31 and the second eyeglass frame leg 32. In this case, a first cable configured to connect the first circuit board 212 to the power supply unit and a second cable configured to connect the second circuit board 222 to the power supply unit may be additionally provided. Here, when the power supply unit is embedded in the second eyeglass frame leg 32, the first cable may extend from the first eyeglass frame leg 31 to the second eyeglass frame leg 32. The length of the first cable may be greater than the length of the second cable.

[0056] Figure 3 is a view illustrating an augmented reality providing method in an optical device according to an exemplary embodiment of the inventive concept.

[0057] Reference Figure 3 , the first optical path converter 320 can be as follows Figure 3 In this case, the first optical path converter 320 may include a first side surface S1, a second side surface S2, a third side surface S3, a fourth side surface S4, and a fifth side surface S5. The first convex lens 310 may be disposed on the first side surface S1 of the first optical path converter 320, and the second convex lens 330 may be disposed on the second side surface S2 of the first optical path converter 320. The angle formed between the first side surface S1 and the second side surface S2 of the first optical path converter 320 may be a right angle. In the first optical path converter 320, the third side surface S3 may be a side surface that shares one side thereof with the second side surface S2, the fourth side surface S4 may be a side surface that shares one side thereof with the third side surface S3, and the fifth side surface S5 may be a side surface that shares one side thereof with the first side surface S1.

[0058] The virtual image displayed on the first display panel 211 is collected by the first convex lens 310 and is incident on the first optical path converter 320. The virtual image displayed on the first display panel 211 may be reflected from at least two of the side surfaces S1 to S5 of the first optical path converter 320. Due to the first optical path converter 320, the number of virtual images displayed on the first display panel 211 may be increased. Figure 3As shown in , the virtual image displayed on the first display panel 211 may be incident on the first side surface S1 of the first optical path converter 320, reflected from the third side surface S3 of the first optical path converter 320, reflected from the fifth side surface S5 of the first optical path converter 320, and then emitted to the second side surface S2 of the first optical path converter 320. Then, the virtual image displayed on the first display panel 211 may be collected by the second convex lens 330 and incident on one side surface (e.g., the upper side surface) of the right eye lens 110. Then, the virtual image displayed on the first display panel 211 may be reflected from the reflector 410 of the right eye lens 110, may be emitted to the first surface of the right eye lens 110, and may be focused on the retina of the right eye RE of the user. Therefore, even when the user does not change his or her focus on the object A (in other words, the real image), the user can see the object A as a real image and the virtual image displayed on the first display panel 211.

[0059] Similar to reference Figure 3 The virtual image described, the virtual image displayed on the second display panel 221 can also be focused on the retina of the user's left eye LE. Therefore, even when the user does not change his or her focus on the object A (in other words, the real image), the user can see the object A as a real image and the virtual image displayed on the second display panel 221.

[0060] Figure 4 is a diagram showing an exemplary embodiment according to the inventive concept Figures 1 to 3 An exploded perspective view of the right eye lens and reflector. Figure 5 It is shown Figure 4 A side view of an example of a right eye lens and reflector.

[0061] Reference Figure 4 and Figure 5 , the right-eye lens 110 may include a first lens portion 111 , a second lens portion 112 , a reflector substrate 400 , and a reflector 410 .

[0062] The first lens portion 111 may include a first inclined surface IS1, a first surface PS1, a second side surface SS12, and a fourth side surface SS14 each having a rectangular shape, and a first side surface SS11 and a third side surface SS13 each having a trapezoidal shape. The first inclined surface IS1 may be a lower surface of the first lens portion 111, and the first surface PS1 may be an upper surface of the first lens portion 111. The first side surface SS11 of the first lens portion 111 may be a left side surface of the first lens portion 111, the second side surface SS12 of the first lens portion 111 may be an upper side surface of the first lens portion 111, the third side surface SS13 of the first lens portion 111 may be a right side surface of the first lens portion 111, and the fourth side surface SS14 of the first lens portion 111 may be a lower side surface of the first lens portion 111. The first inclined surface IS1, the first surface PS1, the first side surface SS11, the second side surface SS12, the third side surface SS13, and the fourth side surface SS14 of the first lens portion 111 may be flat.

[0063] The second lens portion 112 may include a second inclined surface IS2, a second surface PS2, a second side surface SS22, and a fourth side surface SS24 each having a rectangular shape, and a first side surface SS21 and a third side surface SS23 each having a trapezoidal shape. The second inclined surface IS2 may be an upper surface of the second lens portion 112, and the second surface PS2 may be a lower surface of the second lens portion 112. The first side surface SS21 of the second lens portion 112 may be a left side surface of the second lens portion 112, the second side surface SS22 of the second lens portion 112 may be an upper side surface of the second lens portion 112, the third side surface SS23 of the second lens portion 112 may be a right side surface of the second lens portion 112, and the fourth side surface SS24 of the second lens portion 112 may be a lower side surface of the second lens portion 112. The second inclined surface IS2, the second surface PS2, the first side surface SS21, the second side surface SS22, the third side surface SS23, and the fourth side surface SS24 of the second lens portion 112 may be flat.

[0064] The first inclined surface IS1 of the first lens portion 111 may face the second inclined surface IS2 of the second lens portion 112. An inclination angle of the first inclined surface IS1 of the first lens portion 111 relative to the second side surface SS12 of the first lens portion 111 may be substantially the same as an inclination angle of the second inclined surface IS2 of the second lens portion 112 relative to the fourth side surface SS24 of the second lens portion 112. The first inclined surface IS1 of the first lens portion 111 may be parallel to the second inclined surface IS2 of the second lens portion 112.

[0065] The reflector substrate 400 may be disposed between the first inclined surface IS1 of the first lens portion 111 and the second inclined surface IS2 of the second lens portion 112. The reflector substrate 400 may be formed as transparent or translucent using glass or plastic. For example, the reflector substrate 400 may be ultra-thin glass of 0.1 mm or less or a flexible film such as a polyimide film.

[0066] The reflector 410 may be disposed on a first surface of the reflector substrate 400. The first surface of the reflector substrate 400 may face the first inclined surface IS1 of the first lens portion 111. A second surface of the reflector substrate 400, which is a surface opposite to the first surface of the reflector substrate 400, may face the second inclined surface IS2 of the second lens portion 112.

[0067] Each of the reflectors 410 may be formed by depositing a metal having high reflectivity, such as silver (Ag), on a first surface of the reflector substrate 400. Each of the reflectors 410 may have a thin thickness of several micrometers to several tens of micrometers.

[0068] The first adhesive layer 510 is disposed between the first inclined surface IS1 of the first lens portion 111 and the first surface of the reflector substrate 400, and attaches the first surface of the reflector substrate 400 to the first inclined surface IS1 of the first lens portion 111. The second adhesive layer 520 is disposed between the second inclined surface IS2 of the second lens portion 112 and the second surface of the reflector substrate 400, and attaches the second surface of the reflector substrate 400 to the second inclined surface IS2 of the second lens portion 112. The first adhesive layer 510 and the second adhesive layer 520 may include an optically clear resin (OCR) or an optically clear adhesive (OCA).

[0069] The refractive index of the first lens portion 111 may be substantially the same as the refractive index of the second lens portion 112. The refractive index of the first adhesive layer 510 may match the refractive index of the first lens portion 111 and the refractive index of the second lens portion 112. In this case, the light from the first display device 210 provided on the right-eye lens 110 is minimally affected by refraction and reflection, etc., by the first adhesive layer 510 and the second adhesive layer 520. Therefore, the refractive index of the first adhesive layer 510 and the refractive index of the second adhesive layer 520 may be substantially the same as the refractive index of the first lens portion 111 and the refractive index of the second lens portion 112, respectively. Alternatively, the difference between the refractive index of the first adhesive layer 510 and the refractive index of the first lens portion 111 and the difference between the refractive index of the first adhesive layer 510 and the refractive index of the second lens portion 112 may be 0.1 or less. In addition, a difference between the refractive index of the second adhesive layer 520 and the refractive index of the first lens portion 111 and a difference between the refractive index of the second adhesive layer 520 and the refractive index of the second lens portion 112 may be 0.1 or less.

[0070] Reference Figure 4 and Figure 5 In the exemplary embodiment shown in FIG. 4 , the reflector substrate 400 on which the reflector 410 is deposited is attached to the first inclined surface IS1 of the first lens portion 111 of the right-eye lens 110 using the first adhesive layer 510, and is attached to the second inclined surface IS2 of the second lens portion 112 of the right-eye lens 110 using the second adhesive layer 520. Therefore, the right-eye lens 110 including the reflector 410 inclined at a third angle with respect to the thickness direction (Z-axis direction) of the right-eye lens 110 in the height direction (Y-axis direction) of the right-eye lens 110 can be easily manufactured.

[0071] The left-eye lens 120 may be formed as Figure 4 and Figure 5 The right-eye lens 110 shown in FIG. 1 is substantially the same, and thus a detailed description of the left-eye lens 120 is omitted.

[0072] Figure 6 It is shown Figure 4 and Figure 5 A plan view of an example of a reflector substrate of a reflector.

[0073] Reference Figure 6 , the reflector 410 is disposed on the first surface of the reflector substrate 400. The reflector 410 may include a first reflector 411, a second reflector 412, and a third reflector 413. Each of the first reflector 411, the second reflector 412, and the third reflector 413 may have a circular shape or an elliptical shape in a plan view.

[0074] The first reflectors 411 may be arranged in a first direction DR1, which is a width direction of the reflector substrate 400. The first direction DR1 may be substantially the same as the width direction (X-axis direction) of the right-eye lens 110 (or the width direction (X-axis direction) of the left-eye lens 120). The gaps between the first reflectors 411 in the first direction DR1 may be equal to each other. Alternatively, the gaps between the first reflectors 411 in the first direction DR1 may be unequal to each other. The first reflectors 411 may be adjacent to the first side of the reflector substrate 400 in the second direction DR2. For example, as Figure 6 As shown in , the first reflector 411 may be adjacent to the underside of the reflector substrate 400 .

[0075] The second reflectors 412 may be arranged in the first direction DR1. The gaps between the second reflectors 412 in the first direction DR1 may be equal to each other. Alternatively, the gaps between the second reflectors 412 in the first direction DR1 may be unequal to each other. The second reflector 412 may be disposed at the center of the reflector substrate 400 in the second direction DR2. The second reflector 412 may be disposed at a position farther from the first side of the reflector substrate 400 than the first reflector 411. In other words, the second reflector 412 is farther from the first side of the reflector substrate 400 extending longitudinally in the first direction DR1 than the first reflector 411 in the second direction DR2 perpendicular to the first direction DR1. For example, as Figure 6 As shown in , the second reflector 412 can be disposed at a position farther from the lower side of the reflector substrate 400 than the first reflector 411. The lower side of the reflector substrate 400 is adjacent to the first surface of the right-eye lens 110, and therefore, the second reflector 412 can be disposed at a position farther from the first surface of the right-eye lens 110 than the first reflector 411.

[0076] The third reflectors 413 may be arranged in the first direction DR1. The gaps between the third reflectors 413 in the first direction DR1 may be equal to each other. Alternatively, the gaps between the third reflectors 413 in the first direction DR1 may be unequal to each other. The third reflectors 413 may be adjacent to the second side of the reflector substrate 400 in the second direction DR2. For example, Figure 6 As shown in , the third reflector 413 may be adjacent to the upper side of the reflector substrate 400. The third reflector 413 may be disposed at a position farther from the first side of the reflector substrate 400 than the second reflector 412. In other words, the third reflector 413 is farther from the first side of the reflector substrate 400 extending longitudinally in the first direction DR1 than the second reflector 412 in the second direction DR2 perpendicular to the first direction DR1. For example, Figure 6As shown in , the third reflector 413 may be disposed at a position farther from the lower side of the reflector substrate 400 than the second reflector 412. The lower side of the reflector substrate 400 is adjacent to the first surface of the right-eye lens 110, and therefore, the third reflector 413 may be disposed at a position farther from the first surface of the right-eye lens 110 than the second reflector 412. In addition, the third reflector 413 may be disposed at a position closer to the second side of the reflector substrate 400 than the second reflector 412. For example, as Figure 6 As shown in , the third reflector 413 can be disposed at a position closer to the upper side of the reflector substrate 400 than the second reflector 412. The upper side of the reflector substrate 400 is adjacent to the second surface of the right-eye lens 110, and therefore, the third reflector 413 can be disposed at a position closer to the second surface of the right-eye lens 110 than the second reflector 412.

[0077] The minimum distance G11 between the first reflectors 411 adjacent to each other may be smaller than the minimum distance G12 between the second reflectors 412 adjacent to each other. The minimum distance G13 between the third reflectors 413 adjacent to each other may be smaller than the minimum distance G12 between the second reflectors 412 adjacent to each other. The minimum distance G11 between the first reflectors 411 adjacent to each other may be substantially equal to the minimum distance G13 between the third reflectors 413 adjacent to each other.

[0078] One of the first reflectors 411 may overlap one of the third reflectors 413 in the second direction DR2. Figure 6 As shown in , each of the second reflectors 412 may not overlap with the first reflector 411 and the third reflector 413 in the second direction DR2, but the inventive concept is not limited thereto. Each of the second reflectors 412 may overlap with one of the first reflectors 411 and / or one of the third reflectors 413 in the second direction DR2.

[0079] In a plan view, a size of each of the first reflectors 411 may be larger than a size of each of the second reflectors 412. In a plan view, a size of each of the third reflectors 413 may be larger than a size of each of the second reflectors 412. In a plan view, a size of each of the first reflectors 411 may be substantially equal to a size of each of the third reflectors 413.

[0080] When each of the first reflector 411, the second reflector 412, and the third reflector 413 has a circular shape in a plan view, a diameter d1 of each of the first reflectors 411 may be greater than a diameter d2 of each of the second reflectors 412. A diameter d3 of each of the third reflectors 413 may be greater than a diameter d2 of each of the second reflectors 412. The diameter d1 of each of the first reflectors 411 may be substantially equal to a diameter d3 of each of the third reflectors 413.

[0081] Figures 7 to 12 FIG. 4 shows a virtual image of the first display device 210 according to the size of the reflector 410 according to an exemplary embodiment of the inventive concept. When the diameter of the reflector 410 is 2 mm, as shown in FIG. Figure 7 As shown in , the virtual image is shown as blurred. When the diameter of the reflector 410 is 1 mm, as shown in Figure 8 As shown in , the virtual image is still shown as blurry, but clearer than Figure 7 When the diameter of the reflector 410 is 600 μm, Fig. 9 As shown in , the virtual image ratio Figure 8 When the diameter of the reflector 410 is 350 μm, Fig.10 As shown in , the virtual image ratio Fig. 9 When the diameter of the reflector 410 is 150 μm, Fig.11 As shown in , the virtual image ratio Fig.10 When the diameter of the reflector 410 is 70 μm, Fig.12 As shown in , the virtual image ratio Fig.11 The virtual image is more blurred.

[0082] like Figures 7 to 12 As shown in , when the diameter of the reflector 410 is 350 μm, the virtual image is clearly shown, but the virtual image has the lowest brightness. In other words, the higher the clarity of the virtual image shown, the lower the brightness of the virtual image. In addition, the more blurred the virtual image shown, the higher the brightness of the virtual image.

[0083] like Figure 6 As shown in , in a plan view, when the size of each of the first reflectors 411 and the size of each of the third reflectors 413 are larger than the size of each of the second reflectors 412, the clarity of the virtual image reflected from the second reflector 412 and shown to the user is higher than the clarity of the virtual image reflected from the first reflector 411 and the third reflector 413 and shown to the user. However, the brightness of the virtual image reflected from each of the first reflector 411 and the third reflector 413 and shown to the user may be higher than the brightness of the virtual image reflected from the second reflector 412 and shown to the user.

[0084] according to Figure 6 In the exemplary embodiment shown in , the clarity of the virtual image shown to the user can be improved by reflecting the light of the first display device 210 from the second reflector 412, and at the same time, the brightness of the virtual image shown to the user can be improved by reflecting the light of the first display device 210 from the first reflector 411 and the third reflector 413.

[0085] In addition, since the first reflector 411 is arranged on the lower side of the reflector substrate 400 and the third reflector 413 is arranged on the upper side of the reflector substrate 400, the brightness of the virtual image located on the upper and lower sides of the reflector substrate 400 can be reduced or prevented from being lower than the brightness of the virtual image located at the center of the reflector substrate 400.

[0086] Fig.13 It is shown Figure 4 and Figure 5 A plan view of an example of a reflector substrate of a reflector.

[0087] Fig.13 The exemplary embodiment shown in Figure 6 The exemplary embodiment shown in FIG. 1 is different in that the first reflector 411, the second reflector 412, and the third reflector 413 have a quadrilateral shape in a plan view instead of a circular shape or an elliptical shape. Figure 6 The differences between the exemplary embodiments shown in Fig.13 .

[0088] Reference Fig.13 , the minimum distance G21 between the mutually adjacent first reflectors 411 may be smaller than the minimum distance G22 between the mutually adjacent second reflectors 412. The minimum distance G23 between the mutually adjacent third reflectors 413 may be smaller than the minimum distance G22 between the mutually adjacent second reflectors 412. The minimum distance G21 between the mutually adjacent first reflectors 411 may be substantially equal to the minimum distance G23 between the mutually adjacent third reflectors 413.

[0089] In a plan view, a size of each of the first reflectors 411 may be larger than a size of each of the second reflectors 412. In a plan view, a size of each of the third reflectors 413 may be larger than a size of each of the second reflectors 412. In a plan view, a size of each of the first reflectors 411 may be substantially equal to a size of each of the third reflectors 413.

[0090] When each of the first reflector 411, the second reflector 412, and the third reflector 413 has a rectangular shape in a plan view, a length L11 of each of the first reflectors 411 in the second direction DR2 and a length L12 of each of the first reflectors 411 in the first direction DR1 may be greater than a length L21 of each of the second reflectors 412 in the second direction DR2 and a length L22 of each of the second reflectors 412 in the first direction DR1. A length L31 of each of the third reflectors 413 in the second direction DR2 and a length L32 of each of the third reflectors 413 in the first direction DR1 may be greater than a length L21 of each of the second reflectors 412 in the second direction DR2 and a length L22 of each of the second reflectors 412 in the first direction DR1. A length L11 of each of the first reflectors 411 in the second direction DR2 and a length L12 of each of the first reflectors 411 in the first direction DR1 may be substantially equal to a length L31 of each of the third reflectors 413 in the second direction DR2 and a length L32 of each of the third reflectors 413 in the first direction DR1.

[0091] In addition, when each of the first reflector 411, the second reflector 412, and the third reflector 413 has a square shape in a plan view, a length L11 of each of the first reflectors 411 in the second direction DR2 may be substantially equal to a length L12 of each of the first reflectors 411 in the first direction DR1. A length L21 of each of the second reflectors 412 in the second direction DR2 may be substantially equal to a length L22 of each of the second reflectors 412 in the first direction DR1. A length L31 of each of the third reflectors 413 in the second direction DR2 may be substantially equal to a length L32 of each of the third reflectors 413 in the first direction DR1.

[0092] like Fig.13 As shown in , in a plan view, when the size of each of the first reflectors 411 and the size of each of the third reflectors 413 are larger than the size of each of the second reflectors 412, the clarity of the virtual image reflected from the second reflector 412 and shown to the user is higher than the clarity of the virtual image reflected from the first reflector 411 and the third reflector 413 and shown to the user. However, the brightness of the virtual image reflected from the first reflector 411 and the third reflector 413 and shown to the user may be higher than the brightness of the virtual image reflected from the second reflector 412 and shown to the user.

[0093] according to Fig.13In the exemplary embodiment shown in , the clarity of the virtual image shown to the user can be improved by reflecting the light of the first display device 210 from the second reflector 412, and at the same time, the brightness of the virtual image shown to the user can be improved by reflecting the light of the first display device 210 from the first reflector 411 and the third reflector 413.

[0094] In addition, since the first reflector 411 is arranged on the lower side of the reflector substrate 400 and the third reflector 413 is arranged on the upper side of the reflector substrate 400, the brightness of the virtual image located on the upper and lower sides of the reflector substrate 400 can be reduced or prevented from being lower than the brightness of the virtual image located at the center of the reflector substrate 400.

[0095] Fig.14 It is shown Figure 4 and Figure 5 A plan view of an example of a reflector substrate of a reflector.

[0096] Fig.14 The exemplary embodiment shown in Figure 6 The exemplary embodiment shown in FIG. 1 is different in that the first reflector 411, the second reflector 412, and the third reflector 413 have a hexagonal shape in a plan view instead of a circular shape or an elliptical shape. Figure 6 The differences between the exemplary embodiments shown in Fig.14 .

[0097] Reference Fig.14 , the minimum distance G31 between the mutually adjacent first reflectors 411 may be smaller than the minimum distance G32 between the mutually adjacent second reflectors 412. The minimum distance G33 between the mutually adjacent third reflectors 413 may be smaller than the minimum distance G32 between the mutually adjacent second reflectors 412. The minimum distance G31 between the mutually adjacent first reflectors 411 may be substantially equal to the minimum distance G33 between the mutually adjacent third reflectors 413.

[0098] When each of the first reflectors 411, the second reflectors 412, and the third reflectors 413 has a hexagonal shape in a plan view, one side of one of the first reflectors 411 may be parallel to one side of one of the second reflectors 412 and one side of one of the third reflectors 413. In this case, an area in which an image reflected and shown from one of the second reflectors 412 overlaps with an image reflected and shown from one of the first reflectors 411 may be minimized, or an area of ​​a gap between an image reflected and shown from the one second reflector 412 and an image reflected and shown from the one first reflector 411 may be minimized.

[0099] exist Fig.14 , each of the first reflector 411, the second reflector 412, and the third reflector 413 is shown to have a hexagonal shape in a plan view, but the inventive concept is not limited thereto. For example, when each of the first reflector 411, the second reflector 412, and the third reflector 413 has a rhombus shape in a plan view, one side of one of the first reflectors 411 may be parallel to one side of one of the second reflectors 412 and one side of one of the third reflectors 413. In this case, an area in which an image reflected and shown from one of the second reflectors 412 overlaps with an image reflected and shown from one of the first reflectors 411 may be minimized, or an area of ​​a gap between an image reflected and shown from the one second reflector 412 and an image reflected and shown from the one first reflector 411 may be minimized.

[0100] In addition, an extension line EL of one side of any first reflector 411 among the first reflectors 411 may intersect one side of any third reflector 413 among the third reflectors 413. In other words, a straight line may extend along one side of one of the first reflectors 411 to one side of one of the third reflectors 413.

[0101] In a plan view, a size of each of the first reflectors 411 may be larger than a size of each of the second reflectors 412. In a plan view, a size of each of the third reflectors 413 may be larger than a size of each of the second reflectors 412. In a plan view, a size of each of the first reflectors 411 may be substantially equal to a size of each of the third reflectors 413.

[0102] When each of the first reflector 411, the second reflector 412, and the third reflector 413 has a hexagonal shape in a plan view, a width W11 of each of the first reflectors 411 in the first direction DR1 may be greater than a width W21 of each of the second reflectors 412 in the first direction DR1, and a width W12 of each of the first reflectors 411 in the second direction DR2 may be greater than a width W22 of each of the second reflectors 412 in the second direction DR2. A width W31 of each of the third reflectors 413 in the first direction DR1 may be greater than a width W21 of each of the second reflectors 412 in the first direction DR1, and a width W32 of each of the third reflectors 413 in the second direction DR2 may be greater than a width W22 of each of the second reflectors 412 in the second direction DR2. A width W11 of each of the first reflectors 411 in the first direction DR1 may be substantially equal to a width W31 of each of the third reflectors 413 in the first direction DR1, and a width W12 of each of the first reflectors 411 in the second direction DR2 may be substantially equal to a width W32 of each of the third reflectors 413 in the second direction DR2.

[0103] like Fig.14 As shown in , in a plan view, when the size of each of the first reflectors 411 and the size of each of the third reflectors 413 are larger than the size of each of the second reflectors 412, the clarity of the virtual image reflected from the second reflector 412 and shown to the user is higher than the clarity of the virtual image reflected from the first reflector 411 and the third reflector 413 and shown to the user. However, the brightness of the virtual image reflected from the first reflector 411 and the third reflector 413 and shown to the user may be higher than the brightness of the virtual image reflected from the second reflector 412 and shown to the user.

[0104] according to Fig.14 In the exemplary embodiment shown in , the clarity of the virtual image shown to the user can be improved by reflecting the light of the first display device 210 from the second reflector 412, and at the same time, the brightness of the virtual image shown to the user can be improved by reflecting the light of the first display device 210 from the first reflector 411 and the third reflector 413.

[0105] In addition, since the first reflector 411 is arranged on the lower side of the reflector substrate 400 and the third reflector 413 is arranged on the upper side of the reflector substrate 400, the brightness of the virtual image located on the upper and lower sides of the reflector substrate 400 can be reduced or prevented from being lower than the brightness of the virtual image located at the center of the reflector substrate 400.

[0106] Fig.15 It is shown Figure 4 and Figure 5A plan view of an example of a reflector substrate of a reflector.

[0107] Fig.15 The exemplary embodiment shown in Figure 6 The exemplary embodiment shown in FIG. 1 is different in that a fourth reflector 414 is additionally provided. Figure 6 The differences between the exemplary embodiments shown in Fig.15 .

[0108] Reference Fig.15 , the fourth reflector 414 may be arranged in the first direction DR1. The second reflector 412 and the fourth reflector 414 may be arranged at the center of the reflector substrate 400 in the second direction DR2. The gaps between the fourth reflectors 414 in the first direction DR1 may be equal to each other. Alternatively, the gaps between the fourth reflectors 414 in the first direction DR1 may be unequal to each other. The fourth reflector 414 may be arranged at a position farther from the first side of the reflector substrate 400 than the second reflector 412. For example, as Fig.15 As shown in , the fourth reflector 414 may be disposed at a position farther from the lower side of the reflector substrate 400 than the second reflector 412. The lower side of the reflector substrate 400 is adjacent to the first surface of the right-eye lens 110, and therefore, the fourth reflector 414 may be disposed at a position farther from the first surface of the right-eye lens 110 than the second reflector 412. In addition, the fourth reflector 414 may be disposed at a position farther from the second side of the reflector substrate 400 than the third reflector 413. For example, as Fig.15 As shown in , the fourth reflector 414 can be disposed at a position farther from the upper side of the reflector substrate 400 than the third reflector 413. The upper side of the reflector substrate 400 is adjacent to the second surface of the right-eye lens 110, and therefore, the fourth reflector 414 can be disposed at a position farther from the second surface of the right-eye lens 110 than the third reflector 413.

[0109] The minimum distance G91 between the first reflectors 411 adjacent to each other may be smaller than the minimum distance G92 between the second reflectors 412 adjacent to each other. The minimum distance G93 between the third reflectors 413 adjacent to each other may be smaller than the minimum distance G92 between the second reflectors 412 adjacent to each other. The minimum distance G91 between the first reflectors 411 adjacent to each other may be smaller than the minimum distance G94 between the fourth reflectors 414 adjacent to each other. The minimum distance G93 between the third reflectors 413 adjacent to each other may be smaller than the minimum distance G94 between the fourth reflectors 414 adjacent to each other. The minimum distance G95 between the second reflectors 412 and the fourth reflector 414 adjacent to each other may be smaller than the minimum distance G91 between the first reflectors 411 adjacent to each other, the minimum distance G92 between the second reflectors 412 adjacent to each other, the minimum distance G93 between the third reflectors 413 adjacent to each other, and the minimum distance G94 between the fourth reflectors 414 adjacent to each other. A minimum distance G91 between adjacent first reflectors 411 may be substantially equal to a minimum distance G93 between adjacent third reflectors 413. A minimum distance G92 between adjacent second reflectors 412 may be substantially equal to a minimum distance G94 between adjacent fourth reflectors 414.

[0110] In a plan view, a size of each of the first reflectors 411 may be larger than a size of each of the second reflectors 412. In a plan view, a size of each of the third reflectors 413 may be larger than a size of each of the second reflectors 412. In a plan view, a size of each of the first reflectors 411 may be larger than a size of each of the fourth reflectors 414. In a plan view, a size of each of the third reflectors 413 may be larger than a size of each of the fourth reflectors 414. In a plan view, a size of each of the first reflectors 411 may be substantially equal to a size of each of the third reflectors 413. In a plan view, a size of each of the second reflectors 412 may be substantially equal to a size of each of the fourth reflectors 414. In a plan view, the second reflectors 412 and the fourth reflectors 414 may be alternately arranged in a row between a row of the first reflectors 411 and a row of the third reflectors 413 arranged in the first direction DR1 in a row.

[0111] When each of the first reflector 411, the second reflector 412, the third reflector 413, and the fourth reflector 414 has a circular shape in a plan view, a diameter d1 of each of the first reflectors 411 may be greater than a diameter d2 of each of the second reflectors 412. A diameter d3 of each of the third reflectors 413 may be greater than a diameter d2 of each of the second reflectors 412. A diameter d1 of each of the first reflectors 411 may be greater than a diameter d4 of each of the fourth reflectors 414. A diameter d3 of each of the third reflectors 413 may be greater than a diameter d4 of each of the fourth reflectors 414. A diameter d1 of each of the first reflectors 411 may be substantially equal to a diameter d3 of each of the third reflectors 413. A diameter d2 of each of the second reflectors 412 may be substantially equal to a diameter d4 of each of the fourth reflectors 414.

[0112] like Fig.15 As shown in , in a plan view, when the size of each of the first reflectors 411 and the size of each of the third reflectors 413 are larger than the size of each of the second reflectors 412 and the size of each of the fourth reflectors 414, the clarity of the virtual image reflected from the second reflector 412 and the fourth reflector 414 and shown to the user is higher than the clarity of the virtual image reflected from the first reflector 411 and the third reflector 413 and shown to the user. However, the brightness of the virtual image reflected from the first reflector 411 and the third reflector 413 and shown to the user may be higher than the brightness of the virtual image reflected from the second reflector 412 and the fourth reflector 414 and shown to the user.

[0113] according to Fig.15 In the exemplary embodiment shown in , the clarity of the virtual image shown to the user can be improved by reflecting the light of the first display device 210 from the second reflector 412 and the fourth reflector 414, and at the same time, the brightness of the virtual image shown to the user can be improved by reflecting the light of the first display device 210 from the first reflector 411 and the third reflector 413.

[0114] In addition, since the first reflector 411 is arranged on the lower side of the reflector substrate 400 and the third reflector 413 is arranged on the upper side of the reflector substrate 400, the brightness of the virtual image located on the upper and lower sides of the reflector substrate 400 can be reduced or prevented from being lower than the brightness of the virtual image located at the center of the reflector substrate 400.

[0115] Fig.16 It is shown Figure 4 and Figure 5 A plan view of an example of a reflector substrate of a reflector.

[0116] Fig.16 The exemplary embodiment shown in Fig.15 The exemplary embodiment shown in FIG. 1 is different in that the first reflector 411 and the third reflector 413 have an elliptical shape. Fig.15 The differences between the exemplary embodiments shown in Fig.16 .

[0117] Reference Fig.16 , the minimum distance G96 between the third reflector 413 and the fourth reflector 414 adjacent to each other and the minimum distance G97 between the first reflector 411 and the second reflector 412 adjacent to each other may be smaller than the minimum distance G91 between the first reflectors 411 adjacent to each other, the minimum distance G92 between the second reflectors 412 adjacent to each other, the minimum distance G93 between the third reflectors 413 adjacent to each other, and the minimum distance G94 between the fourth reflectors 414 adjacent to each other.

[0118] In addition, Fig.16 In the embodiment, the first reflector 411 and the third reflector 413 have an elliptical shape, and the second reflector 412 and the fourth reflector 414 have a circular shape, but the inventive concept is not limited thereto. All of the first reflector 411, the second reflector 412, the third reflector 413, and the fourth reflector 414 may have an elliptical shape.

[0119] according to Fig.16 In the exemplary embodiment shown in FIG. 1 , by forming the first reflector 411 and the third reflector 413 in an elliptical shape, the size of each of the first reflectors 411 and the size of each of the third reflectors 413 may be smaller than that of the first reflector 411 and the third reflector 413. Fig.15 The size of each of the first reflectors 411 and the size of each of the third reflectors 413 of the exemplary embodiment shown in the figure are increased more, so that the brightness of the virtual images located on the upper and lower sides of the reflector substrate 400 can be reduced or prevented from being lower than the brightness of the virtual image located at the center of the reflector substrate 400.

[0120] Fig.17 It is shown Figure 4 and Figure 5 A plan view of an example of a reflector substrate of a reflector.

[0121] Fig.17 The exemplary embodiment shown in Fig.15 The exemplary embodiment shown in FIG. 1 is different in that the first reflector 411, the second reflector 412, the third reflector 413 and the fourth reflector 414 have a quadrilateral shape. Fig.15 The differences between the exemplary embodiments shown in Fig.17 .

[0122] Reference Fig.17, the minimum distance G81 between the mutually adjacent first reflectors 411 may be smaller than the minimum distance G82 between the mutually adjacent second reflectors 412. The minimum distance G83 between the mutually adjacent third reflectors 413 may be smaller than the minimum distance G82 between the mutually adjacent second reflectors 412. The minimum distance G81 between the mutually adjacent first reflectors 411 may be smaller than the minimum distance G84 between the mutually adjacent fourth reflectors 414. The minimum distance G83 between the mutually adjacent third reflectors 413 may be smaller than the minimum distance G84 between the mutually adjacent fourth reflectors 414.

[0123] The minimum distance G85 between the third reflector 413 and the fourth reflector 414 adjacent to each other, the minimum distance G86 between the second reflector 412 and the fourth reflector 414 adjacent to each other, and the minimum distance G87 between the first reflector 411 and the second reflector 412 adjacent to each other may be smaller than the minimum distance G81 between the first reflectors 411 adjacent to each other, the minimum distance G82 between the second reflectors 412 adjacent to each other, the minimum distance G83 between the third reflectors 413 adjacent to each other, and the minimum distance G84 between the fourth reflectors 414 adjacent to each other. The minimum distance G86 between the second reflector 412 and the fourth reflector 414 adjacent to each other may be smaller than the minimum distance G87 between the first reflector 411 and the second reflector 412 adjacent to each other, and the minimum distance G85 between the third reflector 413 and the fourth reflector 414 adjacent to each other.

[0124] The minimum distance G81 between the first reflectors 411 adjacent to each other may be substantially equal to the minimum distance G83 between the third reflectors 413 adjacent to each other. The minimum distance G82 between the second reflectors 412 adjacent to each other may be substantially equal to the minimum distance G84 between the fourth reflectors 414 adjacent to each other. The minimum distance G87 between the first reflectors 411 and the second reflectors 412 adjacent to each other may be substantially equal to the minimum distance G85 between the third reflectors 413 and the fourth reflectors 414 adjacent to each other.

[0125] When each of the first reflector 411, the second reflector 412, the third reflector 413, and the fourth reflector 414 has a rectangular shape in a plan view, a length L11 of each of the first reflectors 411 in the second direction DR2 and a length L12 of each of the first reflectors 411 in the first direction DR1 may be greater than a length L22 of each of the second reflectors 412 in the second direction DR2 and a length L21 of each of the second reflectors 412 in the first direction DR1. A length L31 of each of the third reflectors 413 in the second direction DR2 and a length L32 of each of the third reflectors 413 in the first direction DR1 may be greater than a length L22 of each of the second reflectors 412 in the second direction DR2 and a length L21 of each of the second reflectors 412 in the first direction DR1. A length L11 of each of the first reflectors 411 in the second direction DR2 and a length L12 of each of the first reflectors 411 in the first direction DR1 may be greater than a length L42 of each of the fourth reflectors 414 in the second direction DR2 and a length L41 of each of the fourth reflectors 414 in the first direction DR1. A length L31 of each of the third reflectors 413 in the second direction DR2 and a length L32 of each of the third reflectors 413 in the first direction DR1 may be greater than a length L42 of each of the fourth reflectors 414 in the second direction DR2 and a length L41 of each of the fourth reflectors 414 in the first direction DR1. A length L11 of each of the first reflectors 411 in the second direction DR2 and a length L12 of each of the first reflectors 411 in the first direction DR1 may be substantially equal to a length L31 of each of the third reflectors 413 in the second direction DR2 and a length L32 of each of the third reflectors 413 in the first direction DR1. A length L21 and a length L22 of each of the second reflectors 412 in the first direction DR1 and in the second direction DR2 may be substantially equal to a length L41 and a length L42 of each of the fourth reflectors 414 in the first direction DR1 and in the second direction DR2.

[0126] A length L11 of each of the first reflectors 411 in the second direction DR2 may be greater than a length L12 of each of the first reflectors 411 in the first direction DR1. A length L21 of each of the second reflectors 412 in the first direction DR1 may be substantially equal to a length L22 of each of the second reflectors 412 in the second direction DR2. A length L31 of each of the third reflectors 413 in the second direction DR2 may be greater than a length L32 of each of the third reflectors 413 in the first direction DR1. A length L41 of each of the fourth reflectors 414 in the first direction DR1 may be substantially equal to a length L42 of each of the fourth reflectors 414 in the second direction DR2.

[0127] like Fig.17 As shown in , in a plan view, when the size of each of the first reflectors 411 and the size of each of the third reflectors 413 are larger than the size of each of the second reflectors 412 and the size of each of the fourth reflectors 414, the clarity of the virtual image reflected from the second reflector 412 and the fourth reflector 414 and shown to the user is higher than the clarity of the virtual image reflected from the first reflector 411 and the third reflector 413 and shown to the user. However, the brightness of the virtual image reflected from the first reflector 411 and the third reflector 413 and shown to the user may be higher than the brightness of the virtual image reflected from the second reflector 412 and the fourth reflector 414 and shown to the user.

[0128] according to Fig.17 In the exemplary embodiment shown in , the clarity of the virtual image shown to the user can be improved by reflecting the light of the first display device 210 from the second reflector 412 and the fourth reflector 414, and at the same time, the brightness of the virtual image shown to the user can be improved by reflecting the light of the first display device 210 from the first reflector 411 and the third reflector 413.

[0129] In addition, since the first reflector 411 is arranged on the lower side of the reflector substrate 400 and the third reflector 413 is arranged on the upper side of the reflector substrate 400, the brightness of the virtual image located on the upper and lower sides of the reflector substrate 400 can be reduced or prevented from being lower than the brightness of the virtual image located at the center of the reflector substrate 400.

[0130] Fig.18 It is shown Figure 4 and Figure 5 A plan view of an example of a reflector substrate of a reflector.

[0131] Fig.18 The exemplary embodiment shown in Figure 6The exemplary embodiment shown in FIG. 1 is different in that the gaps between the first reflectors 411 in the first direction DR1 are different from each other, the gaps between the second reflectors 412 in the first direction DR1 are different from each other, and the gaps between the third reflectors 413 in the first direction DR1 are different from each other. Figure 6 The differences between the exemplary embodiments shown in Fig.18 .

[0132] Reference Fig.18 , the sizes of the gaps G41, G42, and G43 between the first reflectors 411 may increase from the center of the reflector substrate 400 toward one side of the reflector substrate 400 in the first direction DR1. In other words, the gap G41 between the first reflectors 411 disposed adjacent to each other in the first direction DR1 at the center of the reflector substrate 400 may be smaller than the gap G42 between the first reflectors 411 disposed adjacent to each other in the first direction DR1 at a position between one side and the center of the reflector substrate 400. In addition, the gap G42 between the first reflectors 411 disposed adjacent to each other in the first direction DR1 at a position between one side and the center of the reflector substrate 400 may be smaller than the gap G43 between the first reflectors 411 disposed adjacent to each other in the first direction DR1 at one side of the reflector substrate 400. For example, the sizes of the gaps G41, G42, and G43 between the first reflectors 411 may increase sequentially from the center of the reflector substrate 400 toward one side of the reflector substrate 400 in the first direction DR1.

[0133] The sizes of the gaps G51, G52, G53, and G54 between the second reflectors 412 may increase in the first direction DR1 from the center of the reflector substrate 400 toward one side of the reflector substrate 400. In other words, the gap G51 between the second reflectors 412 adjacent to each other in the first direction DR1 at the center of the reflector substrate 400 may be smaller than the gap G52 between the second reflectors 412 adjacent to each other in the first direction DR1 at a position between one side and the center of the reflector substrate 400. In addition, the gap G52 between the second reflectors 412 adjacent to each other in the first direction DR1 at a position between one side and the center of the reflector substrate 400 may be smaller than the gap G53 between the second reflectors 412 adjacent to each other in the first direction DR1 at a position between one side and the center of the reflector substrate 400. In addition, a gap G53 between the second reflectors 412 adjacent to each other in the first direction DR1 at a position between one side and the center of the reflector substrate 400 may be smaller than a gap G54 between the second reflectors 412 adjacent to each other in the first direction DR1 on one side of the reflector substrate 400. For example, sizes of the gaps G51, G52, G53, and G54 between the second reflectors 412 may sequentially increase from the center of the reflector substrate 400 toward one side of the reflector substrate 400 in the first direction DR1.

[0134] The sizes of the gaps G61, G62, and G63 between the third reflectors 413 may increase from the center of the reflector substrate 400 toward one side of the reflector substrate 400 in the first direction DR1. In other words, the gap G61 between the third reflectors 413 adjacent to each other in the first direction DR1 at the center of the reflector substrate 400 may be smaller than the gap G62 between the third reflectors 413 adjacent to each other in the first direction DR1 at a position between one side and the center of the reflector substrate 400. In addition, the gap G62 between the third reflectors 413 adjacent to each other in the first direction DR1 at a position between one side and the center of the reflector substrate 400 may be smaller than the gap G63 between the third reflectors 413 adjacent to each other in the first direction DR1 at one side of the reflector substrate 400. For example, the sizes of the gaps G61, G62, and G63 between the third reflectors 413 may increase sequentially from the center of the reflector substrate 400 toward one side of the reflector substrate 400 in the first direction DR1.

[0135] according to Fig.18 The exemplary embodiment shown in Figure 6Compared with the first reflector 411, the second reflector 412 and the third reflector 413 of the exemplary embodiment shown in , the first reflector 411, the second reflector 412 and the third reflector 413 are densely arranged in the center of the reflector substrate 400 in the first direction DR1, so that the clarity and brightness of the virtual image shown to the user at the center of the reflector substrate 400 can be improved.

[0136] Fig.19 It is shown Figure 4 and Figure 5 A plan view of an example of a reflector substrate of a reflector.

[0137] Fig.19 The exemplary embodiment shown in Figure 6 The difference of the exemplary embodiment shown in FIG. 4 is that a fourth reflector 414 and a fifth reflector 415 are additionally provided. Figure 6 The differences between the exemplary embodiments shown in Fig.19 .

[0138] Reference Fig.19 , the fourth reflectors 414 may be arranged in the first direction DR1. The gaps between the fourth reflectors 414 in the first direction DR1 may be equal to each other. Alternatively, the gaps between the fourth reflectors 414 in the first direction DR1 may be unequal to each other. The fourth reflectors 414 may be disposed at a position farther from the first side of the reflector substrate 400 than the second reflectors 412. For example, Fig.19 As shown in , the fourth reflector 414 may be disposed at a position farther from the lower side of the reflector substrate 400 than the second reflector 412. The lower side of the reflector substrate 400 is adjacent to the first surface of the right-eye lens 110, and therefore, the fourth reflector 414 may be disposed at a position farther from the first surface of the right-eye lens 110 than the second reflector 412. In addition, the fourth reflector 414 may be disposed at a position farther from the second side of the reflector substrate 400 than the third reflector 413. For example, as Fig.19 As shown in , the fourth reflector 414 can be disposed at a position farther from the upper side of the reflector substrate 400 than the third reflector 413. The upper side of the reflector substrate 400 is adjacent to the second surface of the right-eye lens 110, and therefore, the fourth reflector 414 can be disposed at a position farther from the second surface of the right-eye lens 110 than the third reflector 413.

[0139] The fifth reflector 415 may be arranged in the first direction DR1. The fifth reflector 415 may be disposed in the center of the reflector substrate 400 in the second direction DR2. The gaps between the fifth reflectors 415 in the first direction DR1 may be equal to each other. Alternatively, the gaps between the fifth reflectors 415 in the first direction DR1 may be unequal to each other. The fifth reflector 415 may be disposed at a position farther from the first side of the reflector substrate 400 than the second reflector 412. For example, Fig.19 As shown in , the fifth reflector 415 may be disposed at a position farther from the lower side of the reflector substrate 400 than the second reflector 412. The lower side of the reflector substrate 400 is adjacent to the first surface of the right-eye lens 110, and therefore, the fifth reflector 415 may be disposed at a position farther from the first surface of the right-eye lens 110 than the second reflector 412. In addition, the fifth reflector 415 may be disposed at a position farther from the second side of the reflector substrate 400 than the fourth reflector 414. For example, as Fig.19 , the fifth reflector 415 may be disposed at a position farther from the upper side of the reflector substrate 400 than the fourth reflector 414. The upper side of the reflector substrate 400 is adjacent to the second surface of the right-eye lens 110, and therefore, the fifth reflector 415 may be disposed at a position farther from the second surface of the right-eye lens 110 than the fourth reflector 414. In addition, the fifth reflector 415 may be arranged in a row along the first direction DR1 between a row of the second reflectors 412 and a row of the fourth reflectors 414 arranged along the first direction DR1.

[0140] The minimum distance G71 between the mutually adjacent first reflectors 411 may be smaller than the minimum distance G74 between the mutually adjacent fourth reflectors 414. The minimum distance G73 between the mutually adjacent third reflectors 413 may be smaller than the minimum distance G74 between the mutually adjacent fourth reflectors 414. The minimum distance G71 between the mutually adjacent first reflectors 411 may be smaller than the minimum distance G72 between the mutually adjacent second reflectors 412. The minimum distance G73 between the mutually adjacent third reflectors 413 may be smaller than the minimum distance G72 between the mutually adjacent second reflectors 412.

[0141] The minimum distance G71 between the mutually adjacent first reflectors 411 may be smaller than the minimum distance G75 between the mutually adjacent fifth reflectors 415. The minimum distance G72 between the mutually adjacent second reflectors 412 may be smaller than the minimum distance G75 between the mutually adjacent fifth reflectors 415. The minimum distance G73 between the mutually adjacent third reflectors 413 may be smaller than the minimum distance G75 between the mutually adjacent fifth reflectors 415. The minimum distance G74 between the mutually adjacent fourth reflectors 414 may be smaller than the minimum distance G75 between the mutually adjacent fifth reflectors 415.

[0142] The minimum distance G76 between the fourth reflector 414 and the fifth reflector 415 adjacent to each other and the minimum distance G77 between the second reflector 412 and the fifth reflector 415 adjacent to each other may be smaller than the minimum distance G71 between the first reflectors 411 adjacent to each other, the minimum distance G72 between the second reflectors 412 adjacent to each other, the minimum distance G73 between the third reflectors 413 adjacent to each other, the minimum distance G74 between the fourth reflectors 414 adjacent to each other, and the minimum distance G75 between the fifth reflectors 415 adjacent to each other. The minimum distance G71 between the first reflectors 411 adjacent to each other may be substantially equal to the minimum distance G73 between the third reflectors 413 adjacent to each other. The minimum distance G72 between the second reflectors 412 adjacent to each other may be substantially equal to the minimum distance G74 between the fourth reflectors 414 adjacent to each other.

[0143] In a plan view, the size of each of the first reflectors 411 may be larger than the size of each of the second reflectors 412. In a plan view, the size of each of the third reflectors 413 may be larger than the size of each of the second reflectors 412. In a plan view, the size of each of the first reflectors 411 may be larger than the size of each of the fourth reflectors 414. In a plan view, the size of each of the third reflectors 413 may be larger than the size of each of the fourth reflectors 414. In a plan view, the size of each of the second reflectors 412 may be larger than the size of each of the fifth reflectors 415. In a plan view, the size of each of the fourth reflectors 414 may be larger than the size of each of the fifth reflectors 415. In a plan view, the size of each of the first reflectors 411 may be substantially equal to the size of each of the third reflectors 413. In a plan view, the size of each of the second reflectors 412 may be substantially equal to the size of each of the fourth reflectors 414.

[0144] When each of the first reflector 411, the second reflector 412, the third reflector 413, the fourth reflector 414, and the fifth reflector 415 has a circular shape in a plan view, a diameter d1 of each of the first reflectors 411 may be greater than a diameter d2 of each of the second reflectors 412. A diameter d3 of each of the third reflectors 413 may be greater than a diameter d2 of each of the second reflectors 412. A diameter d1 of each of the first reflectors 411 may be greater than a diameter d4 of each of the fourth reflectors 414. A diameter d3 of each of the third reflectors 413 may be greater than a diameter d4 of each of the fourth reflectors 414. A diameter d2 of each of the second reflectors 412 may be greater than a diameter d5 of each of the fifth reflectors 415. A diameter d4 of each of the fourth reflectors 414 may be greater than a diameter d5 of each of the fifth reflectors 415. A diameter d1 of each of the first reflectors 411 may be substantially equal to a diameter d3 of each of the third reflectors 413. The diameter d2 of each of the second reflectors 412 may be substantially equal to the diameter d4 of each of the fourth reflectors 414 .

[0145] like Fig.19 As shown in , in a plan view, when the size of each of the first reflectors 411 and the size of each of the third reflectors 413 are larger than the size of each of the second reflectors 412 and the size of each of the fourth reflectors 414 and the size of each of the fifth reflectors 415 is smaller than the size of each of the second reflectors 412 and the size of each of the fourth reflectors 414, the clarity of the virtual image reflected from the fifth reflector 415 and shown to the user is higher than the clarity of the virtual image reflected from the first reflector 411 and the third reflector 413 and shown to the user. However, the brightness of the virtual image reflected from the first reflector 411 and the third reflector 413 and shown to the user may be higher than the brightness of the virtual image reflected from the second reflector 412 and the fourth reflector 414 and shown to the user.

[0146] according to Fig.19 The exemplary embodiment shown in can improve the clarity of the virtual image shown to the user by further including a fifth reflector 415 and by reflecting light of the first display device 210 from the fifth reflector 415, each of the fifth reflectors 415 being smaller in size than each of the second reflectors 412 and each of the fourth reflectors 414.

[0147] Fig. 20 It is shown Figures 1 to 3 An exploded perspective view of an example of a right eye lens and reflector. Fig.21 It is shown Fig. 20 A side view of an example of a right eye lens and reflector.

[0148] Fig. 20 and Fig.21 The exemplary embodiment shown in Figure 4 and Figure 5 The exemplary embodiment shown in FIG. 1 is different in that the first inclined surface IS1 of the first lens portion 111, the second inclined surface IS2 of the second lens portion 112, and the reflector substrate 400 have curved surfaces. Figure 4 and Figure 5 The differences between the exemplary embodiments shown in Fig. 20 and Fig.21 .

[0149] Reference Fig. 20 and Fig.21 , the first inclined surface IS1 of the first lens portion 111 may be a curved surface having a first curvature, and the second inclined surface IS2 of the second lens portion 112 may be a curved surface having a second curvature. The first curvature and the second curvature may be substantially equal to each other, but the inventive concept is not limited thereto. When the first curvature and the second curvature are different from each other, the first curvature may be greater than the second curvature.

[0150] The reflector substrate 400 may be curved to have a third curvature and may be disposed between the first inclined surface IS1 of the first lens portion 111 and the second inclined surface IS2 of the second lens portion 112. The third curvature may be substantially equal to the second curvature, but the inventive concept is not limited thereto. When the third curvature is different from the second curvature, the third curvature may be greater than the second curvature, and the first curvature may be greater than the third curvature.

[0151] according to Fig. 20 and Fig.21 In the exemplary embodiment shown in , since the reflector substrate 400 is curved, the reflective surface of each of the reflectors 410 of the reflector substrate 400 may be curved. As a result, the virtual image reflected by the reflector 410 may be collected and provided to the retina of the right eye RE of the user.

[0152] Fig. 22 It is shown Figure 2 A plan view of an example of a first display device.

[0153] Reference Fig. 22 , the first display panel 211 of the first display device 210 may include a display area DA, a pad area, a scan driving circuit SDC, and an integrated driving circuit DDC.

[0154] The display area DA may include data lines DL, scan lines SL, and pixels PX. Fig. 22As shown in FIG. 1 , the data line DL may be arranged in the width direction (X-axis direction) of the right eye lens 110, and the scan line SL may be arranged in the thickness direction (Z-axis direction) of the right eye lens 110. The pixel PX may be arranged in a region including the data line DL and the scan line SL. For example, the pixel PX may be arranged in a cross region between the data line DL and the scan line SL. Fig.23 A detailed description of the pixels PX in the display area DA is described.

[0155] The pad region includes a routing line RL connected to the integrated driving circuit DDC and a pad DP connected to the routing line RL. The pad DP may be electrically connected to the first circuit board 212. The first circuit board 212 may be attached to the pad DP using an anisotropic conductive film.

[0156] The scan driving circuit SDC may be disposed at a first side of the display area DA. The scan driving circuit SDC may be disposed adjacent to a long side of the display area DA. The scan driving circuit SDC is connected to the scan lines SL of the display area DA. The scan driving circuit SDC may receive a scan control signal from the integrated driving circuit DDC through a scan control line SCL, generate a scan signal according to the scan control signal, and sequentially apply the scan signal to the scan lines SL.

[0157] The scan driving circuit SDC may include a thin film transistor as a switching element. In this case, the thin film transistor of the scan driving circuit SDC may be formed simultaneously with the thin film transistor of the pixel PX of the display area DA.

[0158] The integrated drive circuit DDC may be disposed at the second side of the display area DA. The integrated drive circuit DDC may be adjacent to the short side of the display area DA. The integrated drive circuit DDC may be disposed in the pad area. Alternatively, the integrated drive circuit DDC may be disposed on the first circuit board 212. The integrated drive circuit DDC may be an integrated circuit.

[0159] The integrated driving circuit DDC receives the timing signal and the video data through the routing line RL. The integrated driving circuit DDC can generate a scan control signal from the timing signal, and can output the scan control signal to the scan driving circuit SDC. The integrated driving circuit DDC can generate a data control signal from the timing signal. The integrated driving circuit DDC can generate a data voltage during a period in which the scan signal is applied according to the data control signal and the video data and apply the data voltage to the data line DL.

[0160] Fig.23 It is shown in detail Fig. 22 A cross-sectional view of a display area of ​​a first display panel.

[0161] Reference Fig.23, the display area DA of the first display panel 211 may include a substrate 1100 , a thin film transistor layer 1230 , a light emitting element layer 1240 , and a thin film encapsulation layer 1300 .

[0162] The thin film transistor layer 1230 is formed on the substrate 1100 . The thin film transistor layer 1230 includes a thin film transistor 1235 , a gate insulating film 1236 , an interlayer insulating film 1237 , a protective film 1238 , and a planarization film 1239 .

[0163] A buffer film may be formed on the substrate 1100. The buffer film may be used to protect the thin film transistor 1235 and the light emitting element from moisture that penetrates through the substrate 1100. The buffer film may include a plurality of inorganic films alternately stacked. For example, the buffer film may include a plurality of inorganic films alternately stacked with silicon oxide (SiO x ) film, silicon nitride (SiN x ) film and a silicon oxynitride (SiON) film. The buffer film may be omitted.

[0164] The thin film transistors 1235 are formed on the buffer film. Each of the thin film transistors 1235 includes an active layer 1231, a gate electrode 1232, a source electrode 1233, and a drain electrode 1234. Fig.23 1235 is shown as a top gate type in which the gate electrode 1232 is disposed above the active layer 1231, but the inventive concept is not limited thereto. In other words, each of the thin film transistors 1235 may be a bottom gate type in which the gate electrode 1232 is disposed below the active layer 1231, or may be a dual gate type in which the gate electrode 1232 is disposed on both the upper and lower portions of the active layer 1231.

[0165] The active layer 1231 is formed on the buffer film. The active layer 1231 may be formed of a silicon-based semiconductor material or an oxide-based semiconductor material. A light blocking layer configured to block external light incident on the active layer 1231 may be formed between the buffer film and the active layer 1231.

[0166] The gate insulating film 1236 may be formed on the active layer 1231. The gate insulating film 1236 may be made of a material such as silicon oxide (SiO x ) film, silicon nitride (SiN x ) film or an inorganic film formed by a multilayer film thereof.

[0167] The gate electrode 1232 and the gate line may be formed on the gate insulating film 1236. The gate electrode 1232 and the gate line may be formed of a single layer or a multilayer made of one selected from molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), copper (Cu), and alloys thereof.

[0168] An interlayer insulating film 1237 may be formed on the gate electrode 1232 and the gate line. The interlayer insulating film 1237 may be made of, for example, silicon oxide (SiO x ) film, silicon nitride (SiN x ) film or an inorganic film formed by a multilayer film thereof.

[0169] The source electrode 1233, the drain electrode 1234, and the data line may be formed on the interlayer insulating film 1237. The source electrode 1233 and the drain electrode 1234 may be connected to the active layer 1231 through a contact hole passing through the gate insulating film 1236 and the interlayer insulating film 1237. The source electrode 1233, the drain electrode 1234, and the data line may be formed of a single layer or a multilayer made of one selected from molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), copper (Cu), and alloys thereof.

[0170] The protective film 1238 may be formed on the source electrode 1233, the drain electrode 1234, and the data line to insulate the thin film transistor 1235. The protective film 1238 may be made of, for example, silicon oxide (SiO x ) film, silicon nitride (SiN x ) film or an inorganic film formed by a multilayer film thereof.

[0171] A planarization film 1239 may be formed on the protective film 1238 to planarize a stepped portion due to the thin film transistor 1235. The planarization film 1239 may be formed of an organic film made of acrylic resin, epoxy resin, phenol resin, polyamide resin, polyimide resin, or the like.

[0172] The light emitting element layer 1240 is formed on the thin film transistor layer 1230. The light emitting element layer 1240 includes a light emitting element and a pixel defining film 1244.

[0173] A light emitting element and a pixel defining film 1244 are formed on the planarization film 1239. The light emitting element may include an organic light emitting device. In this case, the light emitting element may include an anode electrode 1241, a light emitting layer 1242, and a cathode electrode 1243.

[0174] The anode electrode 1241 may be formed on the planarization film 1239. For example, the anode electrode 1241 may be directly disposed on the planarization film 1239. The anode electrode 1241 may be connected to the source electrode 1233 of the thin film transistor 1235 through a contact hole passing through the protection film 1238 and the planarization film 1239.

[0175] In order to divide the pixels PX, the pixel defining film 1244 may be formed to cover the edge of the anode electrode 1241 located on the planarization film 1239. In other words, the pixel defining film 1244 may divide the boundaries of the pixels PX. Each of the pixels PX is a region where the anode electrode 1241, the light emitting layer 1242, and the cathode electrode 1243 are sequentially stacked and holes from the anode electrode 1241 and electrons from the cathode electrode 1243 are combined in the light emitting layer 1242 to emit light.

[0176] The light-emitting layer 1242 is formed on the anode electrode 1241 and the pixel defining film 1244. The light-emitting layer 1242 may be an organic light-emitting layer. The light-emitting layer 1242 may emit one of red light, green light, and blue light. The peak wavelength of the red light may be in the range of about 620nm to 750nm, and the peak wavelength of the green light may be in the range of about 495nm to 570nm. In addition, the peak wavelength of the blue light may be in the range of about 450nm to 495nm. Alternatively, the light-emitting layer 1242 may be a white light emitting layer emitting white light, and in this case, the light-emitting layer 1242 may have a shape in which a red light emitting layer, a green light emitting layer, and a blue light emitting layer are stacked, and may be a common layer formed together in the pixel PX. In this case, the display device 210 may further include separate color filters configured to display red, green, and blue.

[0177] The light emitting layer 1242 may include a hole transport layer, a light emitting layer, and an electron transport layer. In addition, the light emitting layer 1242 may have a series structure of two or more stacks, and in this case, a charge generation layer may be provided between the stacks.

[0178] The cathode electrode 1243 is formed on the light emitting layer 1242. The cathode electrode 1243 may cover the light emitting layer 1242. The cathode electrode 1243 may be a common layer commonly formed in the pixel PX.

[0179] When the light emitting element layer 1240 is formed as a top emission type in which light is emitted in an upper direction, the anode electrode 1241 may be made of a metal material having a high reflectivity, and for example, the anode electrode 1241 may include a stacked structure of aluminum and titanium (Ti / Al / Ti), a stacked structure of aluminum and indium tin oxide (ITO) (ITO / Al / ITO), a silver-palladium-copper (APC) alloy, and a stacked structure of an APC alloy and ITO (ITO / APC / ITO). In addition, the cathode electrode 1243 may be formed of a transparent conductive material (TCO) capable of transmitting light such as ITO or indium zinc oxide (IZO), or may be formed of a semi-transmissive conductive material such as magnesium (Mg), silver (Ag), or an alloy of magnesium (Mg) and silver (Ag). When the cathode electrode 1243 is formed of a semi-transmissive conductive material, the light emitting efficiency may be improved due to the microcavity.

[0180] When the light emitting element layer 1240 is formed as a bottom emission type in which light is emitted in a lower direction, the anode electrode 1241 may be formed of a transparent conductive material (TCO) such as ITO or IZO, or may be formed of a semi-transmissive conductive material such as magnesium (Mg), silver (Ag), or an alloy of magnesium (Mg) and silver (Ag). The cathode electrode 1243 may be formed of a metal material having a high reflectivity, and for example, the cathode electrode 1243 may have a stacked structure of aluminum and titanium (Ti / Al / Ti), a stacked structure of aluminum and ITO (ITO / Al / ITO), a silver-palladium-copper (APC) alloy, and a stacked structure of an APC alloy and ITO (ITO / APC / ITO). When the anode electrode 1241 is formed of a semi-transmissive conductive material, the light emitting efficiency may be improved due to the microcavity.

[0181] The thin film encapsulation layer 1300 is formed on the light emitting element layer 1240. The thin film encapsulation layer 1300 prevents oxygen or moisture from penetrating into the light emitting layer 1242 and the cathode electrode 1243. To achieve this purpose, the thin film encapsulation layer 1300 may include at least one inorganic film. The inorganic film may be formed of silicon nitride, aluminum nitride, zirconium nitride, titanium nitride, hafnium nitride, tantalum nitride, silicon oxide, aluminum oxide or titanium oxide. In addition, the thin film encapsulation layer 1300 may further include at least one organic film. The organic film may have a sufficient thickness to prevent particles from passing through the thin film encapsulation layer 1300 and penetrating into the light emitting layer 1242 and the cathode electrode 1243. The organic film may include one selected from epoxy resin, acrylate and polyurethane acrylate. An encapsulation substrate may be provided on the light emitting element layer 1240 to replace the thin film encapsulation layer 1300.

[0182] In the optical device according to the exemplary embodiment of the present invention, the size of each of the reflectors disposed on the first side and the second side of the reflector substrate in the second direction is formed to be larger than the size of each of the reflectors disposed at the center of the reflector substrate in the second direction. Therefore, the clarity of the virtual image shown to the user can be improved by reflecting the light of the first display device from the reflector disposed at the center of the reflector substrate in the second direction, and at the same time, the brightness of the virtual image shown to the user can be improved by reflecting the light of the first display device from the reflectors disposed on the first side and the second side of the reflector substrate in the second direction.

[0183] In an optical device according to an exemplary embodiment of the present invention, a reflector substrate having a reflector deposited thereon is attached to a first inclined surface of a first lens of a right-eye lens using a first adhesive layer, and a reflector substrate having a reflector deposited thereon is attached to a second inclined surface of a second lens of the right-eye lens using a second adhesive layer. Therefore, a right-eye lens including a reflector that is inclined at a predetermined angle in a height direction of the right-eye lens relative to a width direction of the right-eye lens can be easily manufactured.

[0184] Exemplary embodiments of the present inventive concept provide an optical device capable of improving the clarity of a virtual image visible to a user to provide augmented reality and expand the field of view of the virtual image.

[0185] While the inventive concept has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the inventive concept as set forth in this disclosure.

Claims

1. An optical device, wherein: The optical device comprises: A display device configured to display an image; and a lens comprising a plurality of reflectors that reflect the image from the display device to a first surface of the lens, Wherein, the plurality of reflectors include: a first reflector; and The second reflector, wherein the second reflector is positioned farther from the first surface of the lens than the first reflector in the thickness direction of the lens, and The size of the first reflector is larger than the size of the second reflector.

2. The optical device according to claim 1, wherein: Each of the first reflector and the second reflector has a circular shape in a plan view.

3. The optical device according to claim 1, wherein: Each of the first reflector and the second reflector has a polygonal shape in a plan view.

4. The optical device according to claim 1, wherein: Each of the first reflector and the second reflector has a hexagonal shape in a plan view.

5. The optical device according to claim 4, wherein: One side of the first reflector and one side of the second reflector are parallel to each other.

6. The optical device according to claim 1, wherein: The plurality of reflectors also includes a third reflector having a size different from the size of the second reflector.

7. The optical device according to claim 6, wherein: The third reflector is positioned closer to a second surface of the lens opposite to the first surface of the lens than the second reflector in the thickness direction of the lens; and The size of the third reflector is larger than the size of the second reflector.

8. The optical device according to claim 6, wherein: The size of the first reflector and the size of the third reflector are equal to each other.

9. The optical device according to claim 6, wherein: The plurality of reflectors also includes a fourth reflector having a size different from the size of the first reflector and the size of the third reflector.

10. The optical device according to claim 9, wherein: The fourth reflector is closer to a second surface of the lens opposite to the first surface of the lens than the second reflector in the thickness direction of the lens, and is farther from the second surface of the lens than the third reflector in the thickness direction of the lens, and The size of the second reflector and the size of the fourth reflector are equal to each other.

11. The optical device according to claim 9, wherein: Each of the first reflector, the second reflector, the third reflector, and the fourth reflector has a circular shape in a plan view.

12. The optical device according to claim 9, wherein: Each of the second reflector and the fourth reflector has a circular shape in a plan view, and each of the first reflector and the third reflector has an elliptical shape in a plan view.

13. The optical device according to claim 9, wherein: The second reflector and the fourth reflector have a square shape in a plan view, and each of the first reflector and the third reflector has a rectangular shape in a plan view.

14. The optical device according to claim 9, wherein: The plurality of reflectors further includes a fifth reflector having a size different from the size of the first reflector, the size of the second reflector, the size of the third reflector, and the size of the fourth reflector.

15. The optical device according to claim 14, wherein: The fifth reflector is farther from the first surface of the lens than the second reflector in the thickness direction of the lens, and is farther from a second surface of the lens opposite to the first surface of the lens than the fourth reflector in the thickness direction of the lens, and The size of the fifth reflector is smaller than the size of the second reflector and the size of the fourth reflector, and the size of the second reflector and the size of the fourth reflector are smaller than the size of the first reflector and the size of the third reflector.

16. The optical device according to claim 1, wherein: The lens also includes: a first lens having a first inclined surface; a second lens having a second inclined surface facing the first inclined surface; and A reflector substrate is disposed between the first inclined surface of the first lens and the second inclined surface of the second lens, and has a first surface on which the plurality of reflectors are disposed.

17. The optical device according to claim 16, wherein: The lens also includes: a first adhesive layer disposed between the first surface of the reflector substrate and the first inclined surface of the first lens; and A second adhesive layer is provided between a second surface of the reflector substrate opposite to the first surface of the reflector substrate and the second inclined surface of the second lens.

18. The optical device according to claim 16, wherein: Each of the first inclined surface and the second inclined surface is a flat surface.

19. The optical device according to claim 16, wherein: Each of the first inclined surface and the second inclined surface is a curved surface.

20. An optical device, wherein: The optical device comprises: A display device configured to display an image; and a lens comprising a plurality of reflectors that reflect the image from the display device to a first surface of the lens, Wherein, the plurality of reflectors include a first reflector and a second reflector The second reflector is positioned farther from the first surface of the lens than the first reflector in the thickness direction of the lens, and The size of the first reflector is larger than the size of the second reflector.

21. The optical device according to claim 20, wherein: A gap between a first pair of first reflectors adjacent to each other among the first reflectors is different from a gap between a second pair of first reflectors adjacent to each other among the first reflectors.

22. The optical device according to claim 21, wherein: The gap between the first pair of first reflectors is larger than the gap between the second pair of first reflectors.

23. The optical device according to claim 22, wherein: The second pair of first reflectors are closer to the center of the lens than the first pair of first reflectors.

24. An optical device, wherein: The optical device comprises: A display device configured to display an image; and a lens comprising a plurality of reflectors that reflect the image from the display device to a first surface of the lens, Wherein, the plurality of reflectors include: a first reflector; and The second reflector, wherein the second reflector is positioned farther from the first surface of the lens than the first reflector in the thickness direction of the lens, and The size of the first reflector is larger than the size of the second reflector, Wherein, the lens further comprises: a first lens having a first inclined surface; a second lens having a second inclined surface facing the first inclined surface; and A reflector substrate is disposed between the first inclined surface of the first lens and the second inclined surface of the second lens, and has a first surface on which the plurality of reflectors are disposed.

25. The optical device according to claim 24, wherein: The lens also includes: a first adhesive layer disposed between the first surface of the reflector substrate and the first inclined surface of the first lens; and A second adhesive layer is provided between a second surface of the reflector substrate opposite to the first surface of the reflector substrate and the second inclined surface of the second lens.

26. The optical device according to claim 24, wherein: Each of the first inclined surface and the second inclined surface is flat or curved.

27. The optical device according to claim 24, wherein: Each of the first inclined surface and the second inclined surface is curved.

28. An optical device, wherein: The optical device comprises: A display device configured to display an image; and a lens comprising a plurality of reflectors that reflect the image from the display device to a first surface of the lens, The plurality of reflectors include a first reflector, a second reflector, a third reflector and a fourth reflector, and The second reflector and the fourth reflector are disposed between the first reflector and the third reflector in a width direction of the lens, wherein the second reflector is positioned farther from the first surface of the lens than the first reflector in the thickness direction of the lens, and The size of the first reflector is larger than the size of the second reflector.

29. An optical device, wherein: The optical device comprises: A display device configured to display an image; and a lens comprising a plurality of reflectors that reflect the image from the display device to a first surface of the lens, Wherein, the plurality of reflectors include: a first reflector; and a second reflector having a size smaller than a size of said first reflector, wherein the second reflector is further away from a first side of the reflector substrate extending longitudinally in the first direction than the first reflector in a second direction perpendicular to the first direction, and Wherein, the first side of the reflector substrate is adjacent to the first surface of the lens.

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