Augmented reality providing device

Abstract

An augmented reality providing apparatus includes a lens including a mirror, a display module located on at least one side surface of the lens and configured to display an image, and a dynamic prism module located between the display module and the lens and configured to receive the image. The dynamic prism module is configured to be dynamically turned on or off to provide the received image to different positions of the mirror.

Description

[0001] Cross-references to related applications

[0002] This application claims priority and benefit to Korean Patent Application No. 10-2018-0160255, filed on December 12, 2018, the entire contents of which are incorporated herein by reference. Technical Field

[0003] Embodiments of this disclosure relate to augmented reality providing devices. Background Technology

[0004] The term "augmented reality" refers to the technology of overlaying virtual images onto a real-world image in a user's view and displaying the overlaid image as a single image. The virtual image can be in the form of text or graphics, while the real image is information about the actual objects observed within the device's field of view.

[0005] Augmented reality can be achieved through head-mounted displays (HMDs) or head-up displays (HUDs). When augmented reality is achieved through an HMD, the HMD is provided in the form of a pair of glasses, making it easy for users to wear or carry the HMD.

[0006] Augmented reality (AR) providing devices may include display devices to provide virtual images for enabling AR. In recent years, there has been a need to increase the area of ​​the display device seen by the user (i.e., the user's field of view (FOV)). Summary of the Invention

[0007] Embodiments of this disclosure provide an augmented reality providing device that has an expanded user field of view without increasing its thickness.

[0008] Embodiments of this disclosure provide an augmented reality providing device, comprising: a lens including a reflective member; a display module located on at least one side surface of the lens and configured to display an image; and a dynamic prism module located between the display module and the lens and configured to receive an image, the dynamic prism module being configured to dynamically open or close to provide the received image to different positions on the reflective member.

[0009] The dynamic prism module includes: a first electrode; a second electrode facing the first electrode; a resin layer located between the first electrode and the second electrode and having a reference refractive index; and a refractive index control layer located between the first electrode and the second electrode, the refractive index control layer being configured to be turned on or off by an electric field formed between the first electrode and the second electrode to change its refractive index.

[0010] The resin layer includes an inclined surface that is tilted at a first angle relative to the first electrode.

[0011] The refractive index control layer includes a refractive index anisotropic material.

[0012] The refractive index anisotropic material is a liquid crystal material.

[0013] The refractive index control layer has a first refractive index equal to the reference refractive index in the off state, and has a second refractive index different from the reference refractive index in the on state.

[0014] When the dynamic prism module is in the off state, the image is provided to the first position of the reflective member without being refracted by the refractive index control layer, and when the dynamic prism module is in the on state, the image is provided to the second position of the reflective member after being refracted by the refractive index control layer at a second angle.

[0015] The second angle is determined by the difference between the reference refractive index and the second refractive index and the first angle.

[0016] The dynamic prism module includes a plurality of dynamic prism regions.

[0017] The resin layer includes a plurality of sub-resin layers respectively corresponding to the plurality of dynamic prism regions, and the refractive index control layer includes a plurality of sub-refractive index control layers respectively corresponding to the plurality of sub-resin layers.

[0018] The first electrode includes a plurality of sub-electrodes positioned to respectively correspond to the plurality of sub-resin layers.

[0019] The plurality of sub-resin layers are respectively in contact with the plurality of sub-refractive index control layers to respectively provide the plurality of dynamic prism regions with a plurality of interfaces.

[0020] For each of the plurality of dynamic prism regions, the angle between the first electrode and the plurality of interfaces is the same.

[0021] For each of the plurality of dynamic prism regions, the angle between the first electrode and the plurality of interfaces is different from each other.

[0022] The dynamic prism module is configured to be turned on or off in synchronization with the display module.

[0023] The display module is configured to display a first image during a first period of one frame, and is configured to display a second image during a second period of one frame.

[0024] The dynamic prism module is configured to be turned off during the first period to provide the first image to the first position of the reflective member, and is configured to be turned on during the second period to provide the second image to the second position of the reflective member.

[0025] The dynamic prism module includes a first electrode, a second electrode facing the first electrode, a variable polarizer layer between the first electrode and the second electrode and having a polarization state dynamically changed by an electric field formed between the first electrode and the second electrode, a resin layer between the second electrode and the lens and having a reference refractive index, and a refractive index control layer between the second electrode and the lens.

[0026] The resin layer includes an inclined surface inclined at a first angle with respect to the first electrode.

[0027] The augmented reality providing apparatus further includes a light gathering member configured to receive the image from the display module and configured to gather the image.

[0028] The light gathering member is located between the display module and the dynamic prism module.

[0029] The display module includes an organic light emitting display apparatus.

[0030] The display module includes a flexible display module.

[0031] The flexible display module is located on two or more side surfaces of the lens.

[0032] The flexible display module includes two or more display units, and the two or more display units respectively correspond to the two or more side surfaces of the lens.

[0033] Embodiments of the disclosure provide an augmented reality providing apparatus including a lens including a reflection member, a flexible display module located on at least one side surface of the lens and configured to display a first image during a first period and configured to display a second image during a second period, and a dynamic prism module located between the flexible display module and the lens, the dynamic prism module being configured to be turned off during the first period in synchronization with the flexible display module to provide the first image to a first position of the reflection member and being configured to be turned on during the second period to refract the second image and provide the second image to a second position of the reflection member.

[0034] According to the above, the augmented reality providing apparatus can expand an area of the display module perceived by the user's eyes, for example, a field of view (FOV) of the user, without increasing thicknesses of the lens and the display module. BRIEF DESCRIPTION OF DRAWINGS

[0035] The above and other features of the presently disclosed subject matter will become more apparent after a review of the following detailed description, taken in conjunction with the drawings, wherein:

[0036] Figure 1 is a perspective view illustrating an augmented reality providing apparatus according to an exemplary embodiment of the disclosure;

[0037] Figure 2 is a cross-sectional view illustrating an operation of the augmented reality providing apparatus shown in Figure 1

[0038] Figure 3 is a cross-sectional view illustrating a dynamic prism module according to an exemplary embodiment of the present disclosure;

[0039] Figure 4A is a cross-sectional view illustrating a closed state of the dynamic prism module shown in Figure 3

[0040] Figure 4B is a cross-sectional view illustrating an open state of the dynamic prism module shown in Figure 3

[0041] Figure 5 is a cross-sectional view illustrating an operation of the augmented reality providing apparatus according to a closed state of the dynamic prism module shown in Figure 4A

[0042] Figure 6 is a cross-sectional view illustrating an operation of the augmented reality providing apparatus according to an open state of the dynamic prism module shown in Figure 4B

[0043] Figure 7A is a waveform graph illustrating an operation of the display module and the dynamic prism module;

[0044] Figure 7B is a graph illustrating an image perceived by a user according to an operation of the display module and the dynamic prism module;

[0045] Figure 8A is a plan view illustrating the display module and the dynamic prism module shown in Figure 1

[0046] Figure 8B is a circuit diagram of a pixel shown in Figure 8A

[0047] Figure 8C is a cross-sectional view illustrating a display panel according to an exemplary embodiment of the present disclosure;

[0048] Figure 9 is a cross-sectional view illustrating a dynamic prism module according to another exemplary embodiment of the present disclosure;

[0049] Figure 10 is a cross-sectional view illustrating a dynamic prism module according to another exemplary embodiment of the present disclosure;

[0050] Figure 11 is a cross-sectional view illustrating a dynamic prism module according to another exemplary embodiment of the present disclosure; ​​​​​​​

[0051] Figure 12A is a diagram showing a closed state of the dynamic prism module shown in Figure 11

[0052] Figure 12B is a diagram showing an open state of the dynamic prism module shown in Figure 11

[0053] Figure 13 is a perspective view showing an augmented reality providing apparatus according to another example embodiment of the present disclosure;

[0054] Figure 14 is a cross-sectional view showing the augmented reality providing apparatus shown in Figure 13

[0055] Figure 15 is a perspective view showing an augmented reality providing apparatus according to another example embodiment of the present disclosure;

[0056] Figure 16 is a cross-sectional view showing the augmented reality providing apparatus shown in Figure 15

[0057] Figure 17 is a perspective view showing an augmented reality providing apparatus according to another example embodiment of the present disclosure;

[0058] Figure 18 is a perspective view showing an augmented reality providing apparatus according to another example embodiment of the present disclosure; and

[0059] Figure 19 is a perspective view showing an augmented reality providing apparatus according to another example embodiment of the present disclosure. DETAILED DESCRIPTION

[0060] It can be understood that when an element or layer is referred to as being "on", "connected to" or "coupled to" another element or layer, it can be directly on, connected or coupled to the other element or layer, or intervening elements or layers can be present.

[0061] The same reference numerals refer to the same elements throughout the specification. In the drawings, the thickness, proportions and sizes of components can be exaggerated for clarity of description.

[0062] As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0063] ​​​​It will be understood that, although the terms first, second, etc. can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. The terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the present disclosure. 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.

[0064] For ease of description, spatial relative terms, such as "below", "under", "lower", "over", and "upper" and the like, can be used herein to describe the relationship of one element or feature to another element or feature as shown in the drawings.

[0065] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0066] It will be further understood that the terms "comprises" and / or "comprising", when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0067] The present disclosure will be explained in more detail hereinafter with reference to the attached drawings.

[0068] Figure 1 is a perspective view showing an augmented reality providing apparatus ARD1 according to an exemplary embodiment of the present disclosure, and Figure 2 is a perspective view showing Figure 1 is a cross-sectional view showing the operation of the augmented reality providing apparatus ARD1 shown in

[0069] Referring to Figure 1 and Figure 2 The augmented reality providing apparatus ARD1 according to an exemplary embodiment of the present disclosure includes a lens LM, a display module DD, and a dynamic prism module AP.

[0070] The lens LM can be formed of a glass or plastic material to be transparent or translucent. Accordingly, a user can see a real image through the lens LM. The lens LM can have a set or predetermined refractive index by taking into account the vision of the user.

[0071] The lens LM can have a hexahedral shape defined by two bottom surfaces and four side surfaces, each of which has a quadrangular shape, however, the shape of the lens LM should not be limited to this or by this. In some embodiments, the lens LM can have various other suitable shapes. For example, the lens LM can have a polyhedral shape defined by two bottom surfaces and a side surface coupling the two bottom surfaces, each of which has a polygonal shape. Also, the lens LM can have other shapes such as a cylindrical shape, an elliptical cylindrical shape, a semi-cylindrical shape, or a semi-elliptical cylindrical shape.

[0072] The lens LM includes a mirror RM. The mirror RM can be referred to as a pin mirror. The mirror RM can include a metal material having high reflectivity such as silver (Ag).

[0073] Figure 1 The lens LM is shown to include one mirror RM, however, the number of the mirror RM is not limited to one. For example, the lens LM can include a plurality of mirrors RM.

[0074] The display module DD displays a virtual image to implement augmented reality. The display module DD can be located on at least one of the side surfaces of the lens LM. In Figure 1 and Figure 2 The display module DD is located on one side surface of the lens LM, however, should not be limited to this or by this. For example, the display module DD can be located on two or more side surfaces of the lens LM.

[0075] The display module DD can include a display area IDA displaying an image. Figure 1 Only one display area IDA is shown, however, the display module DD can include a plurality of display areas.

[0076] The mirror RM reflects a virtual image displayed through the display module DD so that the virtual image is formed at a point on the retina of the user's eye HE. Thus, although the user focuses on a real image through the lens LM, the user can clearly see a virtual image as shown in Figure 2 For example, even if the user does not move the focus point on the real image to the virtual image, the user can clearly see the virtual image.

[0077] The mirror RM can have a size smaller than that of the pupil of the user's eye. For example, the diameter of the mirror RM can be about 4 mm or less. In this case, because the user focuses on a real image, the user has difficulty in recognizing the mirror RM. However, as the size of the mirror RM decreases, the brightness of the virtual image provided to the user's eye HE by the display module DD can decrease. Thus, the size of the mirror RM can be set by considering the brightness of the virtual image.

[0078] In a case in which the size of the mirror RM is smaller than the size of the pupil, the mirror RM has a pinhole effect. Accordingly, when a virtual image displayed through the display module DD is reflected by the mirror RM, the depth of field is deepened.

[0079] In Figure 1 , the mirror RM has a circular plate shape, however, the mirror RM can include an elliptical plate shape or a polygonal plate shape, instead of the circular plate shape. In some embodiments, the mirror RM can have a curved shape.

[0080] Referring to Figure 1 and Figure 2 , the dynamic prism module AP can be located between the display module DD and the lens LM. The dynamic prism module AP receives an image from the display module DD. The dynamic prism module AP can be dynamically turned on or off. Accordingly, the dynamic prism module AP can provide the received image to different positions of the mirror RM according to its on or off operation.

[0081] In more detail, when the dynamic prism module AP is in an off state, an image provided to the dynamic prism module AP is input to the mirror RM without being refracted. When the dynamic prism module AP is in an on state, an image provided to the dynamic prism module AP is input to the mirror RM after being refracted. Accordingly, the image can be provided to different positions of the mirror RM according to the on / off operation of the dynamic prism module AP.

[0082] The display module DD can periodically provide different images. In more detail, the display module DD can provide a first image IM A to the dynamic prism module AP during an off period (OFF) of the dynamic prism module AP, and can provide a second image IM B to the dynamic prism module AP during an on period (ON) of the dynamic prism module AP.

[0083] Accordingly, due to the on / off operation of the dynamic prism module AP, a direction in which the first image IM A is incident into the user's eye HE and a direction in which the second image IM B is incident into the user's eye HE are different from each other. The first image IM A may be projected onto a first position P1 of the retina of the user's eye HE, and the second image IM B may be projected onto a second position P2 of the retina of the user's eye HE. Accordingly, the user can perceive one image obtained by merging the first image IM A and the second image IM B that are incident into the user's eye with a time difference, as a virtual image.

[0084] Figure 3 is a cross-sectional view illustrating a dynamic prism module AP according to an exemplary embodiment of the present disclosure. Figure 4A is a cross-sectional view illustrating a dynamic prism module AP according to an exemplary embodiment of the present disclosure. Figure 3 is a view illustrating a closed state of the dynamic prism module AP shown in Figure 4B is a view illustrating an open state of the dynamic prism module AP shown in Figure 3 is a view illustrating an open state of the dynamic prism module AP shown in

[0085] Referring to Figure 3 to Figure 4B The dynamic prism module AP according to an exemplary embodiment of the present disclosure can include a first electrode TE1, a second electrode TE2, a resin layer RL, and a refractive index control layer LL.

[0086] The first electrode TE1 and the second electrode TE2 are positioned to face each other, and the resin layer RL and the refractive index control layer LL are located between the first electrode TE1 and the second electrode TE2.

[0087] The dynamic prism module AP further includes a first base film BF1 and a second base film BF2. The first electrode TE1 is located on one surface of the first base film BF1, and the second electrode TE2 is located on one surface of the second base film BF2. The first base film BF1 and the second base film BF2 face each other.

[0088] Each of the first base film BF1 and the second base film BF2 can be a film of a transparent polymer resin. The material of the first base film BF1 and the second base film BF2 should not be particularly limited. The first base film BF1 and the second base film BF2 can be a thin substrate of a glass or a plastic material.

[0089] Each of the first electrode TE1 and the second electrode TE2 can include a transparent conductive material. Each of the first electrode TE1 and the second electrode TE2 can include indium tin oxide or indium zinc oxide. As another example, each of the first electrode TE1 and the second electrode TE2 can include a metallic material having high transmittance. A voltage can be applied to the first electrode TE1 and the second electrode TE2, respectively.

[0090] When the same voltage is applied to the first electrode TE1 and the second electrode TE2, no electric field is formed between the first electrode TE1 and the second electrode TE2, and the dynamic prism module AP is in a closed state. In contrast, when different voltages are applied to the first electrode TE1 and the second electrode TE2, respectively, an electric field is formed between the first electrode TE1 and the second electrode TE2. The state in which the electric field is formed can be defined as an open state of the dynamic prism module AP.

[0091] As an example, one electrode selected from the first electrode TE1 and the second electrode TE2 can receive the same reference voltage in the on and off states. The other electrode selected from the first electrode TE1 and the second electrode TE2 can receive a driving voltage having the same level as that of the reference voltage in the off state, and can receive a driving voltage having a different level from that of the reference voltage in the on state.

[0092] The resin layer RL can be located on the first electrode TE1. The resin layer RL can include an acrylic polymer material. As an example of the present disclosure, the resin layer RL can include polymethyl methacrylate (PMMA) or polycarbonate (PC). The resin layer RL can have a reference refractive index. For example, the reference refractive index is about 1.49. The resin layer RL includes a surface (hereinafter referred to as a "first inclined surface") inclined with respect to an upper surface of the first electrode TE1. The first inclined surface is inclined at a first angle θ1 with respect to the first electrode TE1.

[0093] The refractive index control layer LL is located on the resin layer RL. The refractive index control layer LL includes a material having refractive index anisotropy. As an example of the present disclosure, the refractive index control layer LL can be a liquid crystal layer including liquid crystal molecules LCM.

[0094] The refractive index control layer LL is located between the resin layer RL and the second electrode TE2. The first base film BF1 on which the first electrode TE1 and the resin layer RL are formed and the second base film BF2 on which the second electrode TE2 is formed are coupled to each other so that the first electrode TE1 and the second electrode TE2 face each other. The refractive index control layer LL is formed by injecting a liquid crystal material between the first base film BF1 and the second base film BF2.

[0095] In some embodiments, the dynamic prism module AP can further include a sealing layer located between the first base film BF1 and the second base film BF2. The sealing layer can seal the liquid crystal material filled between the first base film BF1 and the second base film BF2.

[0096] The refractive index control layer LL is positioned in contact (e.g., physical contact) with the first inclined surface of the resin layer RL. An interface between the refractive index control layer LL and the resin layer RL is inclined at the first angle θ1 with respect to the first electrode TE1.

[0097] The refractive index of the refractive index control layer LL can change according to an electric field formed between the first electrode TE1 and the second electrode TE2.

[0098] When no electric field is formed between the first electrode TE1 and the second electrode TE2 (e.g., in an off state), the liquid crystal molecules (LCM) of the refractive index control layer LL can be oriented in a first state. The refractive index control layer LL can have a first refractive index in the first state. As an example of this disclosure, the first refractive index can have the same (e.g., substantially the same) value as a reference refractive index.

[0099] When an electric field is formed between the first electrode TE1 and the second electrode TE2 (e.g., in an on state), the liquid crystal molecules (LCM) of the refractive index control layer LL can be oriented in a second state. The refractive index control layer LL can have a second refractive index in the second state. As an example of this disclosure, the second refractive index can have a value different from the reference refractive index. As an example, the first refractive index can be approximately 1.49, and the second refractive index can be approximately 1.80. The magnitudes of the reference refractive index, the first refractive index, and the second refractive index should not be particularly limited when the reference refractive index and the first refractive index are equal to each other and the reference refractive index and the second refractive index are different from each other.

[0100] like Figure 4A As shown, when the dynamic prism module AP is in the off state, the refractive index control layer LL has a first refractive index equal to the reference refractive index because the liquid crystal molecules LCM are oriented in a first state. Therefore, even if the first image IM is provided by the display module DD... A The first image IM passes through the dynamic prism module AP. A It is also provided to the reflector RM without being refracted.

[0101] like Figure 4B As shown, when the dynamic prism module AP is in the active state, the liquid crystal molecules LCM are oriented in a second state, and therefore the refractive index of the refractive index control layer LL is changed. For example, the refractive index control layer LL has a second refractive index different from the reference refractive index. Due to the difference between the reference refractive index and the second refractive index, the second image IM provided by the display module DD... B After being refracted by the dynamic prism module AP, it is provided to the reflector RM.

[0102] Therefore, the first image IM A The position provided to the reflector RM and the second image IM B The positions provided to the reflector RM differ. In this case, the second image IM B The angle refracted by the dynamic prism module AP can be defined as the second angle θ2.

[0103] The second angle θ2 can be determined by the difference between the reference refractive index and the second refractive index, as well as the first angle θ1.

[0104] The second angle θ2 can be determined by the following equation.

[0105]

[0106] In the equation, "n0" represents a reference refractive index, "n2" represents a second refractive index, and "θ1" and "θ2" represent a first angle and a second angle, respectively.

[0107] In some embodiments, the second image IM B The direction of travel can be changed by a refractive index difference between the lens LM (refer to Figure 2 ) and the dynamic prism module AP and a refractive index difference between the exit surface of the lens LM and the air layer. Therefore, in addition to the second refractive index of the refractive index control layer LL and the reference refractive index, the refractive index of the lens LM can also be used as a variable for determining the first angle θ1.

[0108] Figure 5 is a graph showing the operation of the augmented reality providing apparatus ARD1 according to the closed state of the dynamic prism module AP shown in Figure 4A , and Figure 6 is a graph showing the operation of the augmented reality providing apparatus ARD1 according to the open state of the dynamic prism module AP shown in Figure 4B . Figure 7A is a waveform graph showing the operation of the display module DD and the dynamic prism module AP, and Figure 7B is a graph showing an image perceived by a user according to the operation of the display module DD and the dynamic prism module AP.

[0109] Referring to Figure 5 , Figure 6 , Figure 7A , and Figure 7B , the display module DD can display the first image IM A and the second image IM B during one frame 1F of the display image. In more detail, the first image IM A is displayed during a first period (T1 period) of one frame 1F, and the second image IM B is displayed during a second period (T2 period) of one frame 1F. In the present exemplary embodiment, the first image IM A may be defined as a first portion of the image to be provided to the user, and the second image IM B may be defined as a second portion of the image to be provided to the user.

[0110] The first image IM A and the second image IM B may include portions overlapping each other in the image, but it should not be limited thereto or thereby. For example, the first image IMA and the second image IM B may not overlap each other.

[0111] The dynamic prism module AP can operate in synchronization with the display module DD. In more detail, during a first period (T1 period) of the display module DD, the dynamic prism module AP is closed. The dynamic prism module AP refracts the first image IM A without the first image IM A to the mirror RM during the first period (T1 period). Meanwhile, during a second period (T2 period) of the display module DD, the dynamic prism module AP is opened. The dynamic prism module AP refracts the second image IM B and provides the refracted second image IM B to the mirror RM during the second period (T2 period).

[0112] According to the opening / closing operation of the dynamic prism module AP, the direction in which the first image IM A is incident into the user's eye HE and the direction in which the second image IM B is incident into the user's eye HE become different. The first image IM A is projected onto a first position P1 of the retina of the user's eye HE, and the second image IM B is projected onto a second position P2 of the retina of the user's eye HE.

[0113] Therefore, as shown in Figure 7B , the user can perceive one image obtained by merging the first image IM A and the second image IM B incident into the user's eye HE with a time difference as a virtual image.

[0114] The size of the user's field of view FOV recognized by the user can be increased compared to the size of the display area IDA in which the first image IM A and the second image IM B are sequentially displayed on the display module DD. Therefore, the augmented reality providing apparatus ARD1 can increase the size of the user's field of view FOV without increasing the width of the display module DD, the width of the lens LM, and the number of mirrors RM.

[0115] In Figure 1 to Figure 6 , Figure 7A and Figure 7BIn the example embodiment, only two states in which the dynamic prism module AP is turned on or off are illustrated, but the present disclosure should not be limited thereto or thereby. For example, the dynamic prism module AP can further include an intermediate state between the off state and the on state. The refractive index control layer LL can have a refractive index between the reference refractive index and the second refractive index in the intermediate state.

[0116] As described above, in a case where the dynamic prism module AP has three states, the display module DD can divide one frame 1F into three parts. The display module DD can display different images in each part.

[0117] Figure 8A is a plan view illustrating the display module DD and the dynamic prism module AP illustrated in FIG. 1A, Figure 1 is a plan view illustrating the display module DD and the dynamic prism module AP illustrated in FIG. 1A, Figure 8B is a plan view illustrating the display module DD and the dynamic prism module AP illustrated in FIG. 1A, Figure 8A is a circuit diagram of the pixel PX illustrated in FIG. 1A, and Figure 8C is a cross-sectional view illustrating the display panel DP according to an example embodiment of the present disclosure.

[0118] Referring to Figure 8A to Figure 8C The display module DD includes the display panel DP. When viewed in a plan view, the display panel DP includes a display area DA and a non-display area NDA. In the example embodiment, the non-display area NDA is defined along edges of the display area DA.

[0119] The display panel DP includes a drive circuit GDC, a plurality of signal lines (e.g., scan lines GL, data lines DL, and power lines PL), and a plurality of pixels PX. The pixels PX are arranged in the display area DA. Each of the pixels PX includes an organic light emitting diode OLED and a pixel driving circuit PDC coupled to the organic light emitting diode OLED. The drive circuit GDC, the signal lines (e.g., the scan lines GL, the data lines DL, and the power lines PL), and the pixel driving circuit PDC can be included in a circuit element layer DP-CL illustrated in FIG. 1A. Figure 8C The drive circuit GDC includes a shift register. The shift register includes a plurality of stages, each of the plurality of stages generates a plurality of scan signals, and sequentially outputs the scan signals to a plurality of scan lines GL described below. As another example, the drive circuit GDC can further output another control signal to the pixel driving circuit PDC.

[0120] The drive circuit GDC can include a plurality of transistors formed by the same process as the pixel driving circuit PDC (e.g., an amorphous silicon process, a low temperature poly silicon (LTPS) process, a low temperature poly oxide (LTPO) process, or an oxide semiconductor process).

[0121] The drive circuit GDC can include a plurality of transistors formed by the same process as the pixel driving circuit PDC (e.g., an amorphous silicon process, a low temperature poly silicon (LTPS) process, a low temperature poly oxide (LTPO) process, or an oxide semiconductor process).

[0122] The plurality of signal lines include scan lines GL, data lines DL, and power lines PL. Each of the scan lines GL is coupled to a corresponding one of the pixels PX, and each of the data lines DL is coupled to a corresponding one of the pixels PX. The power lines PL are coupled to the pixels PX.

[0123] The display module DD includes a first circuit board FCB1 coupled to the display panel DP and a driving chip D-IC mounted on the first circuit board FCB1. The first circuit board FCB1 is coupled to the main circuit board MCB. In some embodiments, a plurality of passive elements and a plurality of active elements can be mounted on the main circuit board MCB. The first circuit board FCB1 and the main circuit board MCB can be flexible circuit boards.

[0124] In the present exemplary embodiment, a chip on film (COF) structure in which the driving chip D-IC is mounted on the first circuit board FCB1 is shown, but it should not be limited thereto or thereby. For example, the display module DD can have a chip on panel (COP) structure in which the driving chip D-IC is mounted on the display panel DP.

[0125] The dynamic prism module AP can include an active area AA and a non-active area NAA defined therein when viewed in a plan view. In the present exemplary embodiment, the active area AA can be defined as an area corresponding to the display area DA of the display module DD.

[0126] The first electrode TE1 and the second electrode TE2 (refer to Figure 3 ), the resin layer RL (refer to Figure 3 ), and the refractive index control layer LL (refer to Figure 3 ) are located in the active area AA of the dynamic prism module AP, and thus the active area AA of the dynamic prism module AP can change the refractive index of an image incident to the active area AA. Signal lines for applying signals to the first electrode TE1 and the second electrode TE2 are located in the non-active area NAA, and the non-active area NAA is located around the active area AA where the refractive index change substantially occurs.

[0127] The dynamic prism module AP can further include a second circuit board FCB2 attached to one of the first base film BF1 and the second base film BF2 (refer to Figure 3 ). In some embodiments, the second circuit board FCB2 can be electrically and physically coupled to the main circuit board MCB of the display module DD. The main circuit board MCB can apply a signal synchronized with the display module DD to the second circuit board FCB2. A driving circuit for driving the first electrode TE1 and the second electrode TE2 can be mounted on the second circuit board FCB2.

[0128] Figure 8BA pixel PX coupled to a scan line GL, a data line DL, and a power line PL is shown as a representative example. The configuration of the pixel PX can be changed without being limited thereto or thereby.

[0129] The organic light emitting diode OLED can be a front surface light emitting type (or class) diode or a back surface light emitting type (or class) diode. The pixel PX includes a first transistor T1 (or "switching transistor"), a second transistor T2 (or "driving transistor"), and a capacitor Cst as a pixel driving circuit PDC to drive the organic light emitting diode OLED. A first power voltage ELVDD is applied to the second transistor T2, and a second power voltage ELVSS is applied to the organic light emitting diode OLED. The second power voltage ELVSS can be lower than the first power voltage ELVDD.

[0130] The first transistor T1 outputs a data signal applied thereto through the data line DL in response to a scan signal applied thereto through the scan line GL. The capacitor Cst is charged with a voltage corresponding to the data signal supplied from the first transistor T1.

[0131] The second transistor T2 is coupled to the organic light emitting diode OLED. The second transistor T2 controls a driving current flowing through the organic light emitting diode OLED in response to a charge amount charged in the capacitor Cst. The organic light emitting diode OLED emits light during a turn-on period of the second transistor T2.

[0132] Figure 8B A structure in which the pixel driving circuit PDC includes two transistors (e.g., the first transistor T1 and the second transistor T2) and one capacitor Cst is shown, however, the configuration of the pixel driving circuit PDC should not be limited thereto or thereby.

[0133] As Figure 8C As shown in FIG. 1, in the display panel DP according to an exemplary embodiment of the present disclosure, a circuit element layer DP-CL, a display element layer DP-OLED, and a thin film encapsulation layer TFE are sequentially stacked on a substrate SUB.

[0134] The circuit element layer DP-CL includes at least one inorganic layer, at least one organic layer, and a circuit element. The circuit element layer DP-CL includes a buffer layer BFL which is an inorganic layer, a first intermediate inorganic layer 10, a second intermediate inorganic layer 20, and an intermediate organic layer 30 which is an organic layer.

[0135] The inorganic layer can include silicon nitride, silicon oxynitride, and silicon oxide. The organic layer can be at least one of an acrylic resin, a methacrylic resin, a polyisoprene resin, an ethylene resin, an epoxy resin, a polyurethane resin, a cellulose resin, a silicone resin, a polyimide resin, a polyamide resin, and a perylene resin. The circuit element includes a conductive pattern and / or a semiconductor pattern.

[0136] The buffer layer BFL improves the coupling force between the base layer SUB and the conductive pattern or the semiconductor pattern. In some embodiments, a barrier layer can be further located on the upper surface of the base layer SUB to prevent or reduce the entry of foreign substances. The buffer layer BFL and the barrier layer can be selectively included or omitted.

[0137] The semiconductor pattern OSP1 of the first transistor T1 (hereinafter referred to as "first semiconductor pattern") and the semiconductor pattern OSP2 of the second transistor T2 (hereinafter referred to as "second semiconductor pattern") are located on the buffer layer BFL. The first semiconductor pattern OSP1 and the second semiconductor pattern OSP2 can be selected from amorphous silicon, polysilicon, and metal oxide semiconductor.

[0138] The first intermediate inorganic layer 10 is located on the first semiconductor pattern OSP1 and the second semiconductor pattern OSP2. The control electrode GE1 of the first transistor T1 (hereinafter referred to as "first control electrode") and the control electrode GE2 of the second transistor T2 (hereinafter referred to as "second control electrode") are located on the first intermediate inorganic layer 10. The first control electrode GE1 and the second control electrode GE2 can be formed through the same photolithography process as the scan line GL (refer to FIG. 1). Figure 8B ) through the same photolithography process.

[0139] The second intermediate inorganic layer 20 is located on the first intermediate inorganic layer 10 to cover the first control electrode GE1 and the second control electrode GE2. The input electrode DE1 of the first transistor T1 (hereinafter referred to as "first input electrode") and the output electrode SE1 of the first transistor T1 (hereinafter referred to as "first output electrode") and the input electrode DE2 of the second transistor T2 (hereinafter referred to as "second input electrode") and the output electrode SE2 of the second transistor T2 (hereinafter referred to as "second output electrode") are located on the second intermediate inorganic layer 20.

[0140] The first input electrode DE1 and the first output electrode SE1 are coupled to the first semiconductor pattern OSP1 through a first contact hole CH1 and a second contact hole CH2, respectively, the first contact hole CH1 and the second contact hole CH2 being defined through the first intermediate inorganic layer 10 and the second intermediate inorganic layer 20. The second input electrode DE2 and the second output electrode SE2 are coupled to the second semiconductor pattern OSP2 through a third contact hole CH3 and a fourth contact hole CH4, respectively, the third contact hole CH3 and the fourth contact hole CH4 being defined through the first intermediate inorganic layer 10 and the second intermediate inorganic layer 20. Meanwhile, according to another embodiment of the disclosure, a portion of the first transistor T1 and the second transistor T2 can be changed to a bottom gate structure.

[0141] The intermediate organic layer 30 is located on the second intermediate inorganic layer 20 to cover the first input electrode DE1, the second input electrode DE2, the first output electrode SE1, and the second output electrode SE2. The intermediate organic layer 30 can provide a flat surface.

[0142] The display element layer DP-OLED is located on the intermediate organic layer 30. The display element layer DP-OLED includes a pixel definition layer PDL and an organic light emitting diode OLED. Like the intermediate organic layer 30, the pixel definition layer PDL includes an organic material. The first electrode AE is located on the intermediate organic layer 30. The first electrode AE is coupled to the second output electrode SE2 through a fifth contact hole CH5 defined through the intermediate organic layer 30. An opening OP is defined through the pixel definition layer PDL. At least a portion of the first electrode AE is exposed through the opening OP of the pixel definition layer PDL.

[0143] When viewed in a plan view, the pixel PX is located in a pixel area. The pixel area includes a light emitting area PXA and a non-light emitting area NPXA located adjacent to the light emitting area PXA. The non-light emitting area NPXA surrounds the light emitting area PXA. In the present exemplary embodiment, the light emitting area PXA is defined to correspond to the portion of the first electrode AE exposed through the opening OP.

[0144] The hole control layer HCL can be commonly located in the light emitting area PXA and the non-light emitting area NPXA. In some embodiments, a common layer like the hole control layer HCL can be commonly formed in a plurality of pixels PX (refer to FIG. 2B). Figure 8B

[0145] ​The light emitting layer EML can be located on the hole control layer HCL. The light emitting layer EML can be located in a region corresponding to the opening OP. For example, the light emitting layer EML can be formed in each of the pixels PX after being divided into a plurality of portions. The light emitting layer EML can include an organic material and / or an inorganic material. In the present exemplary embodiment, the light emitting layer EML is patterned, but the light emitting layer EML can be commonly located in the pixels PX. In this case, the light emitting layer EML can emit white light. In addition, the light emitting layer EML can have a multi-layer structure.

[0146] The electron control layer ECL is located on the light emitting layer EML. In some embodiments, the electron control layer ECL can be commonly formed in the pixels PX (refer to FIG. 1A). Figure 8B

[0147] The second electrode CE is located on the electron control layer ECL. The second electrode CE is commonly located in the pixels PX.

[0148] The thin film encapsulation layer TFE is located on the second electrode CE. The thin film encapsulation layer TFE is commonly located in the pixels PX. In the present exemplary embodiment, the thin film encapsulation layer TFE directly covers the second electrode CE. In the present exemplary embodiment of the disclosure, a cover layer can be further located between the thin film encapsulation layer TFE and the second electrode CE to cover the second electrode CE. In this case, the thin film encapsulation layer TFE can directly cover the cover layer.

[0149] Figure 8C An example of the display panel DP is shown, and the display panel DP should not be limited to the structure of Figure 8C .

[0150] Figure 9 is a cross-sectional view showing a dynamic prism module according to another exemplary embodiment of the disclosure.

[0151] Referring to Figure 9 , the dynamic prism module according to another exemplary embodiment of the disclosure can include a plurality of dynamic prism regions (e.g., a first dynamic prism region SAP1, a second dynamic prism region SAP2, a third dynamic prism region SAP3, and a fourth dynamic prism region SAP4). Figure 9 A structure in which the dynamic prism module is divided into four dynamic prism regions (e.g., a first dynamic prism region SAP1, a second dynamic prism region SAP2, a third dynamic prism region SAP3, and a fourth dynamic prism region SAP4) is shown, however, the number of dynamic prism regions (e.g., a first dynamic prism region SAP1, a second dynamic prism region SAP2, a third dynamic prism region SAP3, and a fourth dynamic prism region SAP4) should not be limited to four.

[0152] ​A resin layer according to another example embodiment of the disclosure can include a plurality of sub-resin layers (e.g., a first sub-resin layer SRL1, a second sub-resin layer SRL2, a third sub-resin layer SRL3, and a fourth sub-resin layer SRL4). The sub-resin layers (e.g., the first sub-resin layer SRL1, the second sub-resin layer SRL2, the third sub-resin layer SRL3, and the fourth sub-resin layer SRL4) can be positioned to respectively correspond to the first dynamic prism region SAP1, the second dynamic prism region SAP2, the third dynamic prism region SAP3, and the fourth dynamic prism region SAP4.

[0153] Each of the sub-resin layers (e.g., the first sub-resin layer SRL1, the second sub-resin layer SRL2, the third sub-resin layer SRL3, and the fourth sub-resin layer SRL4) can include an acrylic polymer material. Each of the sub-resin layers (e.g., the first sub-resin layer SRL1, the second sub-resin layer SRL2, the third sub-resin layer SRL3, and the fourth sub-resin layer SRL4) can include polymethyl methacrylate (PMMA) or polycarbonate (PC).

[0154] The sub-resin layers (e.g., the first sub-resin layer SRL1, the second sub-resin layer SRL2, the third sub-resin layer SRL3, and the fourth sub-resin layer SRL4) can have the same (e.g., substantially the same) refractive index as each other. Each of the sub-resin layers (e.g., the first sub-resin layer SRL1, the second sub-resin layer SRL2, the third sub-resin layer SRL3, and the fourth sub-resin layer SRL4) can have a reference refractive index. For example, the reference refractive index can be about 1.49.

[0155] The sub-resin layers (e.g., the first sub-resin layer SRL1, the second sub-resin layer SRL2, the third sub-resin layer SRL3, and the fourth sub-resin layer SRL4) can be located on the first electrode TE1. Each of the sub-resin layers (e.g., the first sub-resin layer SRL1, the second sub-resin layer SRL2, the third sub-resin layer SRL3, and the fourth sub-resin layer SRL4) can include an inclined surface inclined at a first angle with respect to the first electrode TE1.

[0156] The refractive index control layer includes a plurality of sub-control layers (e.g., a first sub-control layer SLL1, a second sub-control layer SLL2, a third sub-control layer SLL3, and a fourth sub-control layer SLL4) positioned to respectively correspond to the sub-resin layers (e.g., the first sub-resin layer SRL1, the second sub-resin layer SRL2, the third sub-resin layer SRL3, and the fourth sub-resin layer SRL4).

[0157] Each of the sub-control layers (e.g., the first sub-control layer SLL1, the second sub-control layer SLL2, the third sub-control layer SLL3, and the fourth sub-control layer SLL4) can include a material having a refractive index anisotropy. As an example of the present disclosure, each of the sub-control layers (e.g., the first sub-control layer SLL1, the second sub-control layer SLL2, the third sub-control layer SLL3, and the fourth sub-control layer SLL4) can be a liquid crystal layer including liquid crystal molecules LCM.

[0158] Each of the sub-control layers (e.g., the first sub-control layer SLL1, the second sub-control layer SLL2, the third sub-control layer SLL3, and the fourth sub-control layer SLL4) can be positioned in contact (e.g., physical contact) with a tilted surface of a corresponding one of the sub-resin layers (e.g., selected from the first sub-resin layer SRL1, the second sub-resin layer SRL2, the third sub-resin layer SRL3, and the fourth sub-resin layer SRL4). Accordingly, an interface between each of the sub-control layers (e.g., the first sub-control layer SLL1, the second sub-control layer SLL2, the third sub-control layer SLL3, and the fourth sub-control layer SLL4) and a corresponding one of the sub-resin layers (e.g., selected from the first sub-resin layer SRL1, the second sub-resin layer SRL2, the third sub-resin layer SRL3, and the fourth sub-resin layer SRL4) can be tilted at a first angle with respect to the first electrode TE1.

[0159] Each of the sub-control layers (e.g., the first sub-control layer SLL1, the second sub-control layer SLL2, the third sub-control layer SLL3, and the fourth sub-control layer SLL4) can be positioned in contact (e.g., physical contact) with a tilted surface of a corresponding one of the sub-resin layers (e.g., selected from the first sub-resin layer SRL1, the second sub-resin layer SRL2, the third sub-resin layer SRL3, and the fourth sub-resin layer SRL4). Accordingly, an interface between each of the sub-control layers (e.g., the first sub-control layer SLL1, the second sub-control layer SLL2, the third sub-control layer SLL3, and the fourth sub-control layer SLL4) and a corresponding one of the sub-resin layers (e.g., selected from the first sub-resin layer SRL1, the second sub-resin layer SRL2, the third sub-resin layer SRL3, and the fourth sub-resin layer SRL4) can be tilted at a first angle with respect to the first electrode TE1.

[0160] The first angle can have a constant value for each of the first dynamic prism region SAP1, the second dynamic prism region SAP2, the third dynamic prism region SAP3, and the fourth dynamic prism region SAP4, but it should not be limited thereto or thereby. The first angle can have different values for each of the first dynamic prism region SAP1, the second dynamic prism region SAP2, the third dynamic prism region SAP3, and the fourth dynamic prism region SAP4.

[0161] Figure 10 is a cross-sectional view illustrating a dynamic prism module according to another exemplary embodiment of the disclosure.

[0162] Referring to Figure 10 In the dynamic prism module according to another exemplary embodiment of the disclosure, the first electrode can include a plurality of sub-electrodes (e.g., a first sub-electrode STE1, a second sub-electrode STE2, a third sub-electrode STE3, and a fourth sub-electrode STE4) positioned to respectively correspond to the first dynamic prism region SAP1, the second dynamic prism region SAP2, the third dynamic prism region SAP3, and the fourth dynamic prism region SAP4. A plurality of sub-resin layers (e.g., a first sub-resin layer SRL1, a second sub-resin layer SRL2, a third sub-resin layer SRL3, and a fourth sub-resin layer SRL4) can be positioned on the sub-electrodes to respectively correspond to the sub-electrodes (e.g., the first sub-electrode STE1, the second sub-electrode STE2, the third sub-electrode STE3, and the fourth sub-electrode STE4).

[0163] The sub-electrodes (e.g., the first sub-electrode STE1, the second sub-electrode STE2, the third sub-electrode STE3, and the fourth sub-electrode STE4) can receive the same driving voltage. The sub-electrodes (e.g., the first sub-electrode STE1, the second sub-electrode STE2, the third sub-electrode STE3, and the fourth sub-electrode STE4) can receive the driving voltage during an off period of the dynamic prism module. The driving voltage can be substantially the same as a reference voltage applied to the second electrode TE2.

[0164] The sub-electrodes (e.g., the first sub-electrode STE1, the second sub-electrode STE2, the third sub-electrode STE3, and the fourth sub-electrode STE4) can receive different driving voltages from each other. The sub-electrodes (e.g., the first sub-electrode STE1, the second sub-electrode STE2, the third sub-electrode STE3, and the fourth sub-electrode STE4) can receive respective driving voltages during an on period of the dynamic prism module. The respective driving voltages can have different voltage levels, and can have voltage levels different from a reference voltage applied to the second electrode TE2.

[0165] As described above, when the sub-electrodes (e.g., the first sub-electrode STE1, the second sub-electrode STE2, the third sub-electrode STE3, and the fourth sub-electrode STE4) receive the respective driving voltages, the first dynamic prism region SAP1, the second dynamic prism region SAP2, the third dynamic prism region SAP3, and the fourth dynamic prism region SAP4 can have different refractive indexes in the ON state. When the levels of the respective driving voltages are different from each other, the electric field intensity formed in each of the first dynamic prism region SAP1, the second dynamic prism region SAP2, the third dynamic prism region SAP3, and the fourth dynamic prism region SAP4 is changed. When the electric field intensity becomes different, the orientation of the liquid crystal molecules is changed. Accordingly, the refractive indexes of the respective dynamic prism regions (e.g., the first dynamic prism region SAP1, the second dynamic prism region SAP2, the third dynamic prism region SAP3, and the fourth dynamic prism region SAP4) can be different from each other. For example, the refractive indexes can be controlled for each of the first dynamic prism region SAP1, the second dynamic prism region SAP2, the third dynamic prism region SAP3, and the fourth dynamic prism region SAP4 by dividing the first electrode into the sub-electrodes (e.g., the first sub-electrode STE1, the second sub-electrode STE2, the third sub-electrode STE3, and the fourth sub-electrode STE4).

[0166] Figure 11 is a cross-sectional view illustrating a dynamic prism module APP according to another exemplary embodiment of the present disclosure, Figure 12A is a view illustrating Figure 11 the OFF state of the dynamic prism module APP illustrated in Figure 12B is a view illustrating Figure 11 the ON state of the dynamic prism module APP illustrated in

[0167] Referring to Figure 11 to Figure 12B , a dynamic prism module APP according to another exemplary embodiment of the present disclosure includes a first electrode TE1, a second electrode TE2, a variable polarizer layer VPL, a resin layer RL, and a refractive index control layer LL.

[0168] The first electrode TE1 and the second electrode TE2 are positioned to face each other, and the variable polarizer layer VPL is located between the first electrode TE1 and the second electrode TE2. The polarization characteristics of the variable polarizer layer VPL can be dynamically changed by an electric field formed between the first electrode TE1 and the second electrode TE2.

[0169] The dynamic prism module APP further includes a first base film BF1, a second base film BF2, and a third base film BF3.

[0170] The first electrode TE1 is located on one surface of the first base film BF1, and the second electrode TE2 is located on one surface of the second base film BF2. The first base film BF1 and the second base film BF2 are positioned to allow the first electrode TE1 and the second electrode TE2 to face each other.

[0171] A voltage can be applied to the first electrode TE1 and the second electrode TE2, respectively. When the same voltage is applied to the first electrode TE1 and the second electrode TE2, no electric field is formed between the first electrode TE1 and the second electrode TE2, and the dynamic prism module APP is in an off state. In contrast, when different voltages are applied to the first electrode TE1 and the second electrode TE2, respectively, an electric field is formed between the first electrode TE1 and the second electrode TE2. The state in which the electric field is formed can be defined as an on state of the dynamic prism module APP.

[0172] The variable polarizer layer VPL can include a polarizing material that changes a polarization property of light incident to the polarizing material in response to the electric field formed between the first electrode TE1 and the second electrode TE2. As an example of the present disclosure, the polarizing material can be a liquid crystal material. In the off state in which no electric field is formed between the first electrode TE1 and the second electrode TE2, the variable polarizer layer VPL can polarize light incident thereto into a first polarization state. In the on state in which the electric field is formed between the first electrode TE1 and the second electrode TE2, the variable polarizer layer VPL can polarize light incident thereto into a second polarization state.

[0173] The display module DD can periodically provide different images. In more detail, the display module DD can display a first image IM A and a second image IM B during one frame period. According to another embodiment, the dynamic prism module APP can be turned on or off in synchronization with the display module DD (refer to Figure 1 ). In more detail, the dynamic prism module APP can receive the first image IM A from the display module DD during an off period, and can receive the second image IM B from the display module DD during an on period.

[0174] Accordingly, light incident into the variable polarizer layer VPL during the off period can include the first image IM A , and light incident into the variable polarizer layer VPL during the on period can include the second image IM B .

[0175] The resin layer RL and the refractive index control layer LL may be located between the second base film BF2 and the third base film BF3. The resin layer RL may include an acrylic polymer layer. As an example, the resin layer RL may include polymethyl methacrylate (PMMA) or polycarbonate (PC). The resin layer RL may have a reference refractive index. The resin layer RL may include a surface inclined relative to the upper surface of the first electrode TE1 (hereinafter referred to as the "first inclined surface"). The first inclined surface may be inclined at a first angle θ1 relative to the lower surface of the second base film BF2.

[0176] The refractive index control layer LL may be located on the resin layer RL. The refractive index control layer LL may comprise a material having anisotropic refractive index. As an example of this disclosure, the refractive index control layer LL may be a liquid crystal layer comprising liquid crystal molecules LCM. The refractive index control layer LL may be located between the resin layer RL and the third base film BF3.

[0177] The refractive index control layer LL is positioned to contact (e.g., physically contact) a first inclined surface of the resin layer RL. The interface between the refractive index control layer LL and the resin layer RL is inclined at a first angle θ1 relative to the lower surface of the second base film BF2. The refractive index control layer LL may have substantially the same refractive index as the resin layer RL.

[0178] like Figure 12A As shown, when the dynamic prism module APP is in the off state, the variable polarizer layer VPL can polarize the light incident upon it to a first polarization state. As an example of this disclosure, the first polarization state can be either circularly polarized or linearly polarized. The light polarized to the first polarization state is incident on the refractive index control layer LL. The light polarized to the first polarization state experiences refractive indices that are substantially the same for both the refractive index control layer LL and the resin layer RL. The refractive index control layer LL and the resin layer RL have the same refractive index for the light polarized to the first polarization state. Therefore, the light polarized to the first polarization state can travel without refraction when passing through the interface between the refractive index control layer LL and the resin layer RL.

[0179] like Figure 12B As shown, when the dynamic prism module APP is in the active state, the variable polarizer layer VPL can polarize the incident light into a second polarization state. As an example of this disclosure, the second polarization state can be either circular or linear polarization. The light polarized into the second polarization state is incident into the refractive index control layer LL. The light polarized into the second polarization state experiences the refractive index difference between the refractive index control layer LL and the resin layer RL. The refractive index control layer LL and the resin layer RL have different refractive indices for the light polarized into the second polarization state. Therefore, the light polarized into the second polarization state is refracted at a second angle θ2 when passing through the interface between the refractive index control layer LL and the resin layer RL.

[0180] The second angle θ2 can be determined based on a difference in refractive index between the refractive index control layer LL and the resin layer RL experienced by light polarized in the second polarization state and the first angle θ1.

[0181] Figure 13 is a perspective view illustrating an augmented reality providing apparatus ARD2 according to another exemplary embodiment of the present disclosure, and Figure 14 is a perspective view illustrating Figure 13 a cross-sectional view of the augmented reality providing apparatus ARD2 illustrated in

[0182] Referring to Figure 13 and Figure 14 , the augmented reality providing apparatus ARD2 according to another exemplary embodiment of the present disclosure can further include a light collecting member CL.

[0183] The light collecting member CL can receive an image from the display module DD, and can collect the received image. The light collecting member CL can be located between the display module DD and the dynamic prism module AP. The light collecting member CL can include a convex lens that is convex toward the display module DD.

[0184] The display module DD can include a display area EDA1 through which an image is displayed. The image displayed through the display area EDA1 can be collected by the light collecting member CL, and can be provided to the lens LM. The dynamic prism module AP can be located between the light collecting member CL and the lens LM. Because the dynamic prism module AP has Figure 1 to Figure 12B the structure illustrated in

[0185] The image displayed through the display area EDA1 can be provided to the mirror RM after being collected by the light collecting member CL. The size of the display area EDA1 that provides the image to the mirror RM can vary according to the presence or absence of the light collecting member CL.

[0186] As illustrated in Figure 1 and Figure 13 , when it is assumed that the display area IDA of the display module DD has a first size in the absence of the light collecting member CL, then in the presence of the light collecting member CL, the display area EDA1 of the display module DD has a size greater than the first size. For example, when the light collecting member CL is provided, the size of the display area EDA1 that provides the image to the mirror RM can increase. Because the image is provided to the mirror RM from the relatively large display area EDA1 in the display module DD, the field of view (FOV) can be enlarged.

[0187] Figure 13 and Figure 14The structure in which the light collecting member CL is located between the display module DD and the dynamic prism module AP is shown, however, it should not be limited thereto or thereby. As another example of the present disclosure, the light collecting member CL can be located between the dynamic prism module AP and the lens LM.

[0188] Figure 15 is a perspective view showing an augmented reality providing apparatus ARD3 according to another exemplary embodiment of the present disclosure, and Figure 16 is a perspective view showing Figure 15 a cross-sectional view of the augmented reality providing apparatus ARD3 shown in

[0189] Referring to Figure 15 and Figure 16 , the augmented reality providing apparatus ARD3 according to another exemplary embodiment of the present disclosure can include a flexible display module FDD. The flexible display module FDD can be an organic light emitting display apparatus.

[0190] The flexible display module FDD can have a structure bent in one direction. In more detail, the flexible display module FDD can have a structure in which a display surface on which an image is displayed is concavely bent. The display surface can be a surface of one side surface facing the lens LM.

[0191] The dynamic prism module AP is located between the flexible display module FDD and the lens LM. The dynamic prism module AP has Figure 1 to Figure 12B the structure shown in

[0192] The image output from the flexible display module FDD can be provided to the mirror RM after passing through the dynamic prism module AP. The flexible display module FDD can have a refractive index that varies according to a distance between the mirror RM and the flexible display module FDD.

[0193] In the case where the flexible display module FDD is bent, the size of the display area EDA2 of the mirror RM to which the image is provided can increase. For example, as Figure 1 and Figure 15 shown, when it is assumed that the display area IDA of the display module DD has a first size in the case where the display module DD is flat, the display area EDA2 of the flexible display module FDD has a size greater than the first size when the flexible display module FDD is bent. Thus, since the image is provided to the mirror RM from a relatively wide display area EDA2 when the bent flexible display module FDD is used, a field of view (FOV) can be enlarged.

[0194] Figure 15 and Figure 16The structure in which only the flexible display module FDD is bent is illustrated, however, the dynamic prism module AP can be bent along the flexible display module FDD. As another example of the present disclosure, the lens LM can have a shape in which a side surface facing the flexible display module FDD is bent along the flexible display module FDD.

[0195] Figure 17 is a perspective view illustrating an augmented reality providing apparatus ARD4 according to another exemplary embodiment of the present disclosure.

[0196] Referring to Figure 17 In the augmented reality providing apparatus ARD4 according to another exemplary embodiment of the present disclosure, the lens LM can include a plurality of mirrors RM. The mirrors RM can respectively reflect images provided from a plurality of display areas IDA of the display module DD.

[0197] Figure 17 The structure in which the display areas IDA partially overlap each other is illustrated as a representative example, however, it should not be limited thereto or thereby. For example, the display areas IDA can not overlap each other.

[0198] The mirrors RM can be arranged in a length direction of the display module DD, and in this case, a field of view (FOV) can be enlarged in the length direction of the display module DD.

[0199] In some embodiments, the mirrors RM can be arranged in a width direction of the display module DD. In this case, a field of view (FOV) can be enlarged in the width direction of the display module DD.

[0200] However, in the case of using Figure 1 to Figure 12B In the case of the dynamic prism module AP and the dynamic prism module APP illustrated in FIG. 1, the augmented reality providing apparatus ARD1 has an effect of increasing a field of view (FOV) in a width direction of the display module DD. Accordingly, when the dynamic prism module AP and the dynamic prism module APP according to the present disclosure are used, a field of view (FOV) can be enlarged without increasing a size of the display module DD in the width direction or a thickness of the lens LM in the width direction of the display module DD.

[0201] Figure 18 is a perspective view illustrating an augmented reality providing apparatus ARD5 according to another exemplary embodiment of the present disclosure.

[0202] Referring to Figure 18 In the augmented reality providing apparatus ARD5 according to another exemplary embodiment of the present disclosure, the flexible display module FDD5 can be arranged along at least two side surfaces of the lens LM. The flexible display module FDD5 can have a shape folded in a portion in which the two side surfaces contact (e.g., physically contact) each other.

[0203] The flexible display module FDD5 can include a first display unit DU1 corresponding to the first side surface of the lens LM and a second display unit DU2 corresponding to the second side surface of the lens LM.

[0204] The lens LM can include a first mirror group RM-G1 reflecting an image displayed through the first display unit DU1 and a second mirror group RM-G2 reflecting an image displayed through the second display unit DU2. The first mirror group RM-G1 can include a first mirror RM1, a second mirror RM2, and a third mirror RM3 reflecting images displayed through a first display area IDA1, a second display area IDA2, and a third display area IDA3 of the first display unit DU1, respectively. The second mirror group RM-G2 can include a fourth mirror RM4 and a fifth mirror RM5 reflecting images displayed through a fourth display area IDA4 and a fifth display area IDA5 of the second display unit DU2, respectively.

[0205] Figure 18 The augmented reality providing apparatus ARD5 shown in FIG. 5A can include a dynamic prism module AP5 having a shape bent along the flexible display module FDD5. The dynamic prism module AP5 can include a first dynamic prism unit APU1 and a second dynamic prism unit APU2. The first dynamic prism unit APU1 can be located between the first side surface of the lens LM and the first display unit DU1, and the second dynamic prism unit APU2 can be located between the second side surface of the lens LM and the second display unit DU2.

[0206] The first display unit DU1 and the second display unit DU2 can be operated concurrently (e.g., simultaneously or substantially simultaneously) by one driving circuit, or can be independently operated by separate driving circuits, respectively. In the case where the first display unit DU1 and the second display unit DU2 are independently operated, each of the first dynamic prism unit APU1 and the second dynamic prism unit APU2 can be operated in synchronization with the corresponding display unit.

[0207] The structure and the principle of operation of each of the first dynamic prism unit APU1 and the second dynamic prism unit APU2 are substantially the same as those of the dynamic prism module AP and the dynamic prism module APP shown in FIGS. 4A and 4B, and thus repetitive descriptions thereof will not be restated here. Figure 1 to Figure 12B The structure and the principle of operation of the dynamic prism module AP and the dynamic prism module APP shown in FIGS. 4A and 4B are substantially the same as those of the dynamic prism module AP5 and the dynamic prism module APU5 shown in FIG. 5A, and thus repetitive descriptions thereof will not be restated here.

[0208] In the case of including the first dynamic prism unit APU1 and the second dynamic prism unit APU2, even if a mirror is not further arranged in the width direction of the flexible display module FDD5, the augmented reality providing apparatus ARD5 can have an effect of expanding the field of view (FOV). Therefore, it is possible to expand the field of view (FOV) without increasing the size of the flexible display module FDD5 in the width direction or the thickness of the lens LM in the width direction of the flexible display module FDD5.

[0209] Figure 19 is a perspective view illustrating an augmented reality providing apparatus ARD6 according to another exemplary embodiment of the present disclosure.

[0210] Reference Figure 19 In the augmented reality providing apparatus ARD6 according to another exemplary embodiment of the present disclosure, the flexible display module FDD6 can be arranged along at least three side surfaces of the lens LM. Figure 19 A structure in which the flexible display module FDD6 is positioned along three side surfaces of the lens LM is illustrated. In this case, the flexible display module FDD6 can have a shape folded twice.

[0211] The flexible display module FDD6 includes a first display unit DU1, a second display unit DU2, and a third display unit DU3. The first display unit DU1, the second display unit DU2, and the third display unit DU3 correspond to a first side surface, a second side surface, and a third side surface of the lens LM, respectively. The first display unit DU1 includes a first display area IDA1, a second display area IDA2, and a third display area IDA3, the second display unit DU2 includes a fourth display area IDA4 and a fifth display area IDA5, and the third display unit DU3 includes a sixth display area IDA6, a seventh display area IDA7, and an eighth display area IDA8.

[0212] The lens LM can include a first mirror group RM-G1, a second mirror group RM-G2, and a third mirror group RM-G3. The first mirror group RM-G1 reflects an image displayed through the first display unit DU1, the second mirror group RM-G2 reflects an image displayed through the second display unit DU2, and the third mirror group RM-G3 reflects an image displayed through the third display unit DU3.

[0213] The first mirror group RM-G1 includes first, second, and third mirrors RM1, RM2, and RM3 that reflect images of the first, second, and third display areas IDA1, IDA2, and IDA3, respectively. The second mirror group RM-G2 includes fourth and fifth mirrors RM4 and RM5 that reflect images of the fourth and fifth display areas IDA4 and IDA5, respectively, and the third mirror group RM-G3 includes sixth, seventh, and eighth mirrors RM6, RM7, and RM8 that reflect images of the sixth, seventh, and eighth display areas IDA6, IDA7, and IDA8, respectively.

[0214] Figure 19 The augmented reality providing apparatus ARD6 shown in FIG. 12 can include a dynamic prism module AP6 having a shape bent along the flexible display module FDD6. The dynamic prism module AP6 can include first, second, and third dynamic prism units APU1, APU2, and APU3. The first dynamic prism unit APU1 can be located between the first side surface of the lens LM and the first display unit DU1, and the second dynamic prism unit APU2 can be located between the second side surface of the lens LM and the second display unit DU2. The third dynamic prism unit APU3 can be located between the third side surface of the lens LM and the third display unit DU3.

[0215] The structure and operation principle of each of the first, second, and third dynamic prism units APU1, APU2, and APU3 are substantially the same as those of the dynamic prism module AP and the dynamic prism module APP shown in FIGS. 11 and 12, and thus repetitive descriptions thereof will not be restated here. Figure 1 to Figure 12B The structure and operation principle of the dynamic prism module AP and the dynamic prism module APP shown in FIGS. 11 and 12 are substantially the same, and thus repetitive descriptions thereof will not be restated here.

[0216] In the case of including the first, second, and third dynamic prism units APU1, APU2, and APU3, the augmented reality providing apparatus ARD6 can have an effect of expanding the field of view (FOV) even if a mirror is not further disposed in the width direction of the flexible display module FDD6. Accordingly, the field of view (FOV) can be expanded without increasing the size of the flexible display module FDD6 in the width direction or the thickness of the lens LM in the width direction of the flexible display module FDD6.

[0217] As used herein, the terms “substantially,” “about,” and similar terms are used as terms of approximation and not as terms of degree, and are intended to account for the inherent deviations in measured or calculated values that would be recognized by those of ordinary skill in the art. Further, the use of “may” when describing embodiments of the present disclosure is intended to mean that one or more embodiments of the present disclosure. As used herein, the terms “use,” “using,” and “used” can be considered synonymous with the terms “utilize,” “utilizing,” and “utilized,” respectively. Also, the term “exemplary” is intended to mean an example or an illustration.

[0218] Also, any numerical range recited herein is intended to include all sub-ranges of the same numerical precision, encompassed within the recited range. For example, a range of “1.0 to 10.0” is intended to include all sub-ranges, for example, 2.4 to 7.6, 3.5 to 9.0, etc., within the same precision used to recite the original range. Any maximum numerical limitation recited herein is intended to include all lower numerical limitations subsumed therein and any minimum numerical limitation recited in this specification is intended to include all higher numerical limitations subsumed therein. Accordingly, Applicant reserves the right to amend this specification, including the claims, to expressly recite any sub-range subsumed within the ranges expressly recited in this specification.

[0219] While exemplary embodiments of the present disclosure have been described, it is to be understood that the disclosure is not limited to those precise embodiments, and that various changes and modifications can be made which will be apparent to those skilled in the art, within the spirit and scope of the disclosure as defined by the appended claims.

[0220] Thus, the disclosed subject matter should not be limited to any single embodiment described herein, but rather should be construed in breadth, according to the appended claims and their equivalents.

Claims

1. An augmented reality providing device, comprising: Lenses, including mirrors; A display module is located on at least one side surface of the lens and parallel to the at least one side surface of the lens, and the display module is configured to display a first image during a first time period of a frame and a second image during a second time period of the frame; as well as A dynamic prism module, located between the display module and the lens and parallel to at least one side surface of the lens, is configured to receive the first image and the second image. The dynamic prism module is also configured to dynamically turn on or off synchronously with the display module during the first and second time periods of a frame to provide the first image and the second image to different positions on the reflector. The reflector receives the first image and the second image from at least one side surface of the lens, projects the first image onto a first position on the retina of the user's eye, and projects the second image onto a second position on the retina of the user's eye. The user perception is a virtual image obtained by combining the first image and the second image emitted from the other side surface of the lens. The first image is a first part of the virtual image and the second image is a second part of the virtual image, and The display module includes at least two display units located on at least two side surfaces of the lens that are in contact with each other and arranged along the at least two side surfaces of the lens. The dynamic prism module has a shape that is curved along the display module, and the reflectors are provided to reflect at least two images displayed through the at least two display units, respectively.

2. The augmented reality providing device according to claim 1, wherein, The dynamic prism module includes: First electrode; The second electrode faces the first electrode; A resin layer, located between the first electrode and the second electrode, and having a reference refractive index; and A refractive index control layer is located between the first electrode and the second electrode, and the refractive index control layer is configured to be turned on or off by an electric field formed between the first electrode and the second electrode to change the refractive index of the refractive index control layer.

3. The augmented reality providing device according to claim 2, wherein, The resin layer includes an inclined surface that is tilted at a first angle relative to the first electrode.

4. The augmented reality providing device according to claim 3, wherein, The refractive index control layer comprises a refractive index anisotropic material.

5. The augmented reality providing device according to claim 4, wherein, The anisotropic refractive index material is a liquid crystal material.

6. The augmented reality providing device according to claim 3, wherein, The refractive index control layer has a first refractive index that is equal to the reference refractive index when it is off, and a second refractive index that is different from the reference refractive index when it is on.

7. The augmented reality providing device according to claim 6, wherein, When the dynamic prism module is in the closed state, the first image is provided to the first position of the reflector without being refracted by the refractive index control layer, and when the dynamic prism module is in the open state, the second image is provided to the second position of the reflector after being refracted by the refractive index control layer at a second angle.

8. The augmented reality providing device according to claim 7, wherein, The second angle is determined by the difference between the reference refractive index and the second refractive index, and by the first angle.

9. The augmented reality providing device according to claim 2, wherein, The dynamic prism module includes multiple dynamic prism regions.

10. The augmented reality providing device according to claim 9, wherein, The resin layer includes multiple sub-resin layers corresponding to the multiple dynamic prism regions, and the refractive index control layer includes multiple sub-refractive index control layers corresponding to the multiple sub-resin layers.

11. The augmented reality providing device according to claim 10, wherein, The first electrode includes a plurality of sub-electrodes positioned to correspond to the plurality of sub-resin layers, respectively.

12. The augmented reality providing device according to claim 10, wherein, The plurality of sub-resin layers are in contact with the plurality of sub-refractive index control layers respectively, so as to provide multiple interfaces for the plurality of dynamic prism regions respectively.

13. The augmented reality providing device according to claim 12, wherein, For each of the plurality of dynamic prism regions, the angle between the first electrode and the plurality of interfaces is the same.

14. The augmented reality providing device according to claim 12, wherein, For each of the plurality of dynamic prism regions, the angle between the first electrode and the plurality of interfaces is different from each other.

15. The augmented reality providing device according to claim 1, wherein, The dynamic prism module is configured to be turned off during the first time period to provide the first image to a third position of the reflector, and is configured to be turned on during the second time period to provide the second image to a fourth position of the reflector.

16. The augmented reality providing device according to claim 1, wherein, The dynamic prism module includes: First electrode; The second electrode faces the first electrode; A variable polarizer layer is located between the first electrode and the second electrode, and has a polarization state that changes dynamically by an electric field formed between the first electrode and the second electrode; A resin layer, located between the second electrode and the lens, and having a reference refractive index; and A refractive index control layer is located between the second electrode and the lens.

17. The augmented reality providing device according to claim 16, wherein, The resin layer includes an inclined surface that is tilted at a first angle relative to the first electrode.

18. The augmented reality providing device of claim 1, further comprising a light-gathering member configured to receive the first image and the second image from the display module, and configured to gather the first image and the second image. in, The light-gathering component is located between the display module and the dynamic prism module.

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