CN113504653A

CN113504653A - Near-to-eye display system and device

Info

Publication number: CN113504653A
Application number: CN202110890566.6A
Authority: CN
Inventors: 康雪雪; 赵鑫; 郑昱
Original assignee: Journey Technology Ltd
Current assignee: Journey Technology Ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2021-10-15

Abstract

The embodiment of the invention discloses a near-to-eye display system and a near-to-eye display device, which comprise: the self-luminous type image source, the polarization beam splitter prism, at least one first phase retarder and a first reflecting element; the self-luminous image source is used for emitting a first light beam; the polarization beam splitting prism is positioned on the propagation path of the first light beam and used for selecting the first light beam as a first polarization light beam; the first phase retarder and the first reflection element are sequentially positioned on a propagation path of the first polarized light beam, and the first polarized light beam is reflected by the first reflection element after passing through the first phase retarder and then forms a second polarized light beam after passing through the first phase retarder; the polarization beam splitter prism is also positioned on the propagation path of the second polarization beam and used for reflecting the second polarization beam and emitting the second polarization beam, extra light source illumination is avoided by arranging a self-luminous image source, the polarization beam splitter prism, the first phase delay sheet and the first reflecting element are combined, the deflection state and the propagation path of the first beam are changed, the size of the system is effectively reduced, and miniaturization is realized.

Description

Near-to-eye display system and device

Technical Field

The embodiment of the invention relates to the technical field of optics, in particular to a near-to-eye display system and device.

Background

Augmented Reality (AR) is a technology for enhancing Reality of a real scene using virtual objects or information, and is widely used in various fields such as scientific research, military, industry, games, video, education, and the like. The miniaturization and performance advancement of the near-eye display devices currently mainstream for application to augmented reality make it possible to move compact and high-performance near-eye display devices to consumers.

But limited by the existing technology and technology level, the resolution of the augmented reality display device is difficult to improve. Moreover, the display field of view of the conventional display optical module is closely related to the volume of the display optical module. The volume of the conventional display optical module is increased greatly by increasing the display field of view. How to weaken the influence, realize real wearable, miniaturization, show clear, angle of vision is big, wears comfortable near-to-eye display device, then has important meaning.

Disclosure of Invention

The embodiment of the invention provides a near-eye display system and a near-eye display device, which do not need additional light source illumination and realize small-volume and high-definition display of the near-eye display system.

In a first aspect, an embodiment of the present invention provides a near-eye display system, including: the self-luminous type image source, the polarization beam splitter prism, at least one first phase retarder and a first reflecting element;

the self-luminous image source is used for emitting a first light beam;

the polarization beam splitting prism is positioned on the propagation path of the first light beam and used for selecting the first light beam as a first polarization light beam;

the first phase retarder and the first reflection element are sequentially located on a propagation path of the first polarized light beam, and the first polarized light beam passes through the first phase retarder, is reflected by the first reflection element and then passes through the first phase retarder to form a second polarized light beam;

the polarization beam splitter prism is also positioned on the propagation path of the second polarized light beam and at least used for reflecting the second polarized light beam and emitting the second polarized light beam.

Optionally, the method further includes: at least one second phase delay piece and a second reflective element;

the second phase retarder and the second reflecting element are sequentially positioned on a propagation path of the second polarized light beam, and the second polarized light beam is reflected by the second reflecting element after passing through the second phase retarder and then forms a third polarized light beam after passing through the second phase retarder;

the polarization beam splitter prism is also positioned on the propagation path of the third polarized light beam and at least used for reflecting the third polarized light beam and emitting the third polarized light beam.

Optionally, the first reflective element is a collimating element; alternatively, the second reflective element is a collimating element.

Optionally, when the first reflecting element is a collimating element, the first reflecting element is a spherical mirror or an aspheric mirror; or, when the second reflecting element is a collimating element, the second reflecting element is a spherical mirror or an aspheric mirror.

Optionally, the first reflective element is a collimating element.

Optionally, the total phase retardation of at least one of the first phase retardation plates is λ/2+ n λ; the total phase delay amount of at least one second phase delay piece is lambda/2 + m lambda, wherein n and m are integers which are more than or equal to 0.

Optionally, at least one of the first phase retardation plates and at least one of the second phase retardation plates each comprise a quarter-wave plate.

Optionally, the polarization component is located on the propagation path of the first light beam and is used for selecting the first light beam to be linearly polarized light,

the polarization direction of the linearly polarized light is the same as the polarization direction of the parallel polarization component of the polarization splitting prism.

Optionally, the self-luminous image source is at least one of a light emitting display diode, an organic light emitting diode or a micro light emitting diode.

In a second aspect, an embodiment of the present invention further provides a near-eye display device, including an optical waveguide element and the near-eye display system described in any one of the above first aspects.

The present invention provides a near-eye display system, comprising: the self-luminous type image source, the polarization beam splitter prism, at least one first phase retarder and a first reflecting element; the self-luminous image source is used for emitting a first light beam; the polarization beam splitting prism is positioned on the propagation path of the first light beam and used for selecting the first light beam as a first polarization light beam; the first phase retarder and the first reflection element are sequentially positioned on a propagation path of the first polarized light beam, and the first polarized light beam passes through the first phase retarder, is reflected by the first reflection element and then passes through the first phase retarder to form a second polarized light beam; the polarization beam splitter prism is also positioned on the propagation path of the second polarization light beam and at least used for reflecting the second polarization light beam and emitting the second polarization light beam. Through setting up self-luminous type image source, avoid extra light source illumination, combine polarization splitting prism, at least one first phase delay piece and first reflection element, change the deflection state and the propagation path of first light beam, effectively reduce near-to-eye display system's volume, realize the miniaturization.

Drawings

To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below of the drawings required for the embodiments or the technical solutions in the prior art, and it is obvious that the drawings in the following description, although being some specific embodiments of the present invention, can be extended and extended to other structures and drawings by those skilled in the art according to the basic concepts of the device structure, the driving method and the manufacturing method disclosed and suggested by the various embodiments of the present invention, without making sure that these should be within the scope of the claims of the present invention.

Fig. 1 is a schematic structural diagram of a near-eye display system according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of another near-eye display system according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of another near-eye display system according to an embodiment of the present invention;

fig. 4 is a dot-column diagram of a near-eye display system according to an embodiment of the present invention;

fig. 5 is a MTF graph of a near-eye display system according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a near-eye display device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described through embodiments with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the basic idea disclosed and suggested by the embodiments of the present invention, are within the scope of the present invention.

Fig. 1 is a schematic structural diagram of a near-eye display system according to an embodiment of the present invention, and as shown in fig. 1, the near-eye display system 100 includes: the self-luminous type image source 101, the polarization beam splitter prism 102, at least one first phase retarder 103 and a first reflecting element 104;

the self-luminous image source 101 is used for emitting a first light beam;

the polarization beam splitter prism 102 is located on a propagation path of the first light beam and is used for selecting the first light beam as a first polarized light beam;

the first phase retarder 103 and the first reflection element 104 are sequentially located on a propagation path of the first polarized light beam, and the first polarized light beam passes through the first phase retarder 103, is reflected by the first reflection element 104, and then passes through the first phase retarder 103 to form a second polarized light beam;

the polarization beam splitter prism 102 is also located on the propagation path of the second polarized light beam, and at least used for reflecting the second polarized light beam and emitting the second polarized light beam.

The self-luminous image source 101 emits a first light beam, and can be used for eye vision imaging. Compare in traditional liquid crystal on silicon, need extra light source illumination, introduce the light source and increase whole near-to-eye display system's volume, self-luminous type image source 101 need not extra light source illumination, can emergent first light beam, effectively reduces near-to-eye display system's volume, improves the user and wears experience. Arranging a polarization beam splitter prism 102 on a transmission path of a first light beam, wherein the polarization beam splitter prism 102 has a function of selecting the polarization direction of an incident light beam, can transmit a P polarization light beam meeting a preset polarization direction, and simultaneously reflects a light beam which is not parallel to the polarization direction of the P polarization light beam; or, the light beam which is not parallel to the polarization direction of the S-polarized light beam is reflected while the S-polarized light beam which satisfies the preset polarization direction is transmitted, wherein the polarization direction of the P-polarized light beam is orthogonal to the polarization direction of the S-polarized light beam. When the self-luminous image source 101 emits a first light beam, the polarization beam splitter prism 102 selectively forms the first light beam into a first polarized light beam, and the first polarized light beam includes a P-polarized light beam or an S-polarized light beam. Specifically, for example, the near-eye display system 100 includes a first phase retarder 103, the first polarized light beam is a P-polarized light beam, the first phase retarder 103 is a quarter-wave plate, and the first reflective element 104 is a mirror with a collimating effect, the first phase retarder 103 and the first reflective element 104 are sequentially disposed on a propagation path of the first polarized light beam, and the first polarized light beam passes through the first phase retarder 103, is reflected and collimated by the first reflective element 104, and then passes through the first phase retarder 103 to form a second polarized light beam. Because the first polarized light beam passes through the first phase retarder 103 twice, the emergent second polarized light beam has a certain phase difference relative to the incident first polarized light beam, at this time, the polarization direction of the second polarized light beam and the polarization direction of the first polarized light beam satisfy the orthogonality, and the second polarized light beam satisfies the S polarized light beam. Meanwhile, the polarization beam splitter prism 102 is located on the propagation path of the second polarized light beam, and when the polarization direction of the second polarized light beam and the polarization direction of the first polarized light beam meet the condition of being orthogonal, the polarization beam splitter prism 102 reflects the second polarized light beam and emits the second polarized light beam, which can be emitted to the eyes of a user, so that a clear image can be displayed on the retinas of the eyes of the user.

The embodiment of the invention provides a near-to-eye display system, which comprises a self-luminous image source, a polarization beam splitter prism, at least one first phase delay piece and a first reflecting element, wherein the self-luminous image source is arranged on the front surface of the self-luminous image source; the self-luminous image source is used for emitting a first light beam, so that additional arrangement of light source illumination is avoided, the size and the weight of the near-to-eye display system are reduced, and the wearable type is improved; the polarization beam splitting prism is positioned on the propagation path of the first light beam and used for selecting the first light beam as a first polarization light beam; the first phase retarder and the first reflection element are sequentially positioned on a propagation path of the first polarized light beam, and the first polarized light beam passes through the first phase retarder, is reflected by the first reflection element and then passes through the first phase retarder to form a second polarized light beam; the polarization beam splitter prism is also positioned on the propagation path of the second polarization light beam and at least used for reflecting the second polarization light beam and emitting the second polarization light beam. Utilize polarization beam splitter prism, first phase delay piece and first reflecting element to adjust polarization state and propagation path of first light beam in near-to-eye display system, improve the imaging effect of incidenting to user's eyes, near-to-eye display system's volume is more frivolous simultaneously, does benefit to the integration, is favorable to realizing the miniaturization.

Fig. 2 is a schematic structural diagram of another near-eye display system according to an embodiment of the present invention, as shown in fig. 2, optionally, further including: at least one second phase delay piece 105 and a second reflective element 106;

the second phase retarder 105 and the second reflecting element 106 are sequentially located on a propagation path of the second polarized light beam, and the second polarized light beam passes through the second phase retarder 105, is reflected by the second reflecting element 106, and then passes through the second phase retarder 105 to form a third polarized light beam;

the polarization beam splitter prism 102 is also located on the propagation path of the third polarized light beam, and at least used for reflecting the third polarized light beam and emitting the third polarized light beam.

Taking the near-eye display system 100 as an example, the first phase retarder 103 and the second phase retarder 105, where the first polarized light beam is a P-polarized light beam, the first phase retarder 103 and the second phase retarder 105 are both quarter-wave plates, the first reflective element 104 is a plane mirror, and the second reflective element 106 is a mirror with a collimating effect, the first phase retarder 103 and the first reflective element 104 are sequentially disposed on a propagation path of the first polarized light beam, the first polarized light beam is reflected by the first reflective element 104 after passing through the first phase retarder 103 and then passes through the first phase retarder 103 to form a second polarized light beam, the second phase retarder 105 and the second reflective element 106 are sequentially disposed on a propagation path of the second polarized light beam, and the second polarized light beam is reflected by the second reflective element 106 after passing through the second phase retarder 105 and then passes through the second phase retarder 105 and then forms a third polarized light beam; because the first polarized light beam passes through the second polarized light beam emitted by the first phase retarder 103 twice, the second polarized light beam satisfies the S polarized light beam, the second polarized light beam passes through the third polarized light beam emitted by the second phase retarder 105 twice, and the third polarized light beam has a certain phase difference with respect to the second polarized light beam, at this time, the polarization direction of the third polarized light beam and the polarization direction of the second polarized light beam satisfy the orthogonality, and the third polarized light beam satisfies the P polarized light beam. Meanwhile, the polarization beam splitter prism 102 is located on the propagation path of the third polarized light beam, and when the polarization direction of the third polarized light beam is parallel to the polarization direction of the first polarized light beam, the polarization beam splitter prism 102 reflects the third polarized light beam and emits the third polarized light beam, which can be emitted to the eyes of the user, so that a clear image is formed on the retinas of the eyes of the user. The first light beam can be adjusted by folding the light path twice, so that the size of the near-to-eye display system 100 can be further reduced, and the display effect can be realized.

Fig. 3 is a schematic structural diagram of another near-eye display system provided in an embodiment of the present invention, in which the first reflective element 104 is an optional collimating element; alternatively, the second reflective element 106 is a collimating element.

As shown in fig. 3, the near-eye display system includes a first phase retarder 103 and a second phase retarder 105, the first polarized light beam is a P-polarized light beam, the first phase retarder 103 and the second phase retarder 105 are both quarter-wave plates, the first reflective element 104 is a mirror with collimation effect, the second reflective element 106 is a plane mirror, for example, the first phase retarder 103 and the first reflective element 104 are sequentially disposed on a propagation path of the first polarized light beam, the first polarized light beam is reflected and collimated by the first reflective element after passing through the first phase retarder 103 and then passes through the first phase retarder 103 to form a second polarized light beam, the second phase retarder 105 and the second reflective element 106 are sequentially disposed on a propagation path of the second polarized light beam, and the second polarized light beam is reflected by the second reflective element 106 after passing through the second phase retarder 105 and then passes through the second phase retarder 105 to form a third polarized light beam; because the first polarized light beam passes through the second polarized light beam emitted by the first phase retarder 103 twice, the second polarized light beam satisfies the S polarized light beam, the second polarized light beam passes through the third polarized light beam emitted by the second phase retarder 105 twice, and the third polarized light beam has a certain phase difference with respect to the second polarized light beam, at this time, the polarization direction of the third polarized light beam and the polarization direction of the second polarized light beam satisfy the orthogonality, and the third polarized light beam satisfies the P polarized light beam. Meanwhile, the polarization beam splitter prism 102 is located on the propagation path of the third polarized light beam, and when the polarization direction of the third polarized light beam is parallel to the polarization direction of the first polarized light beam, the polarization beam splitter prism 102 reflects the third polarized light beam and emits the third polarized light beam, which can be emitted to the eyes of the user, so that a clear image is formed on the retinas of the eyes of the user.

With reference to fig. 2, the first reflecting element 104 is a plane mirror, and the second reflecting element 106 is a collimating element, so that when the first polarized light beam satisfies the P-polarized light beam, the first polarized light beam passes through the polarization beam splitter prism 102, the first phase retarder 103, the first reflecting element 104, the second phase retarder 105, and the second reflecting element 106, and then the third polarized light beam satisfies that the P-polarized light beam is reflected by the polarization beam splitter prism 102 and then emitted to the eyes of the user.

With continued reference to fig. 2 and 3, optionally, when the first reflective element is a collimating element, the first reflective element is a spherical mirror or an aspherical mirror; or, when the second reflecting element is a collimating element, the second reflecting element is a spherical mirror or an aspheric mirror.

The first reflecting element 104 is a collimating element, the first reflecting element 104 can be a spherical mirror or an aspheric mirror, and the collimating effect of the first reflecting element 104 is further ensured by adjusting the focal length and the surface type of the spherical mirror or the aspheric mirror, and similarly, when the second reflecting element 106 is the collimating element, the second reflecting element 106 can be a spherical mirror or an aspheric mirror. When the first reflective element 104 is a collimating element or the second reflective element 106 is a collimating element, the type of the reflective mirror can be selected according to actual design requirements, and the embodiment of the present invention is not particularly limited.

With continued reference to fig. 1, optionally, the first reflective element 104 is a collimating element.

The first reflecting element 104 is a collimating element, the first reflecting element 104 may be a spherical mirror or an aspheric mirror, and for the first polarized light beam reflected by the polarization splitting prism 102, the first polarized light beam is a P polarized light beam, and after being reflected and collimated by the first reflecting element 104 which is a collimating element through the first phase delay plate 103, the first polarized light beam changes a deflection and rotation state through the first phase delay plate 103, and is formed into a second polarized light beam to be emitted, and the second polarized light beam is an S polarized light beam and can be directly emitted to the eyes of the user through the polarization splitting prism 102.

Optionally, the total phase retardation of the at least one first phase retardation plate 103 is λ/2+ n λ; the total phase retardation of the at least one second phase retardation plate 105 is λ/2+ m λ, where n and m are integers greater than or equal to 0.

When only one first phase retarder 103 and one second phase retarder 105 are provided in the near-eye display system 100, the total phase retardation of the first polarized light beam passing through the first phase retarder 103 is λ/2, and the total phase retardation of the second polarized light beam passing through the first phase retarder 103 is λ/2, so that after the first polarized light beam passes through the polarization splitting prism 102, the first phase retarder 103, the first reflecting element 104, the second phase retarder 105 and the second reflecting element 106, the finally formed third polarized light beam can be emitted to the user's eye in parallel through the polarization splitting prism 102, and image display is achieved.

With continued reference to FIG. 2, optionally, the at least one first phase retarder 103 and the at least one second phase retarder 105 each include a quarter-wave plate.

The near-eye display system 100 is provided with a first phase retarder 103 and a second phase retarder 105, the first phase retarder 103 and the second phase retarder 105 are quarter-wave plates, when the first polarized light beam is a P-polarized light beam, the first polarized light beam passes through the first phase retarder 103 twice to form a second polarized light beam which is an S-polarized light beam, the second polarized light beam passes through the second phase retarder 105 twice to form a third polarized light beam which is a P-polarized light beam, and the third polarized light beam is finally reflected by the polarization beam splitter prism 102 and then emitted, and the size of the near-eye display system can be effectively reduced by only arranging the first phase retarder 103 and the second phase retarder 105, so that subsequent integration is facilitated, and the wearing experience of a user is improved.

With continued reference to fig. 3, optionally, a polarization component 107 is further included, where the polarization component 107 is located on a propagation path of the first light beam, and is configured to select the first light beam as linearly polarized light, and a polarization direction of the linearly polarized light is the same as a polarization direction of the parallel polarization component of the polarization splitting prism 102.

In order to improve the energy utilization rate of the light beams entering the eye and improve the imaging definition, the near-eye display system 100 further includes a polarizing component 107, and the polarizing component 107 includes a polarizer, a nicols prism, and the like commonly used in the market, and can obtain polarized light from natural light. When a first light beam emitted by the self-luminous image source 101 is arranged, the polarization component 107 is arranged on a transmission path of the first light beam, the polarization component 107 obtains a linearly polarized light beam from the first light beam, when the polarized light beam enters the polarization splitting prism 102, the polarization direction of the linearly polarized light is selected to be the same as the polarization direction of a parallel polarization component of the polarization splitting prism 102, the parallel polarization component is P polarized light, so that the linearly polarized light is reflected by the polarization splitting prism 102 to form the first polarized light beam, the polarized light capable of transmitting the polarization splitting prism 102 can be isolated, phenomena such as ghost images and the like caused by superposition with the finally emergent light entering eyes are avoided, and the imaging definition is improved.

Optionally, the self-luminous image source 101 is at least one of a light emitting display diode, an organic light emitting diode, or a micro light emitting diode.

The self-luminous image source 101 may be at least one of a light emitting display diode, an organic light emitting diode, or a micro light emitting diode, and does not need to be additionally provided with a light source for illumination.

As a possible implementation, a specific example is listed, and an optical simulation test is performed based on the near-eye display system provided in the foregoing example.

With continued reference to fig. 2 and 3, near-eye display system 100 includes: a self-luminous image source 101, a polarization splitting prism 102, at least one first phase delay piece 102, a first reflection element 104, at least one second phase delay piece 105 and a second reflection element 106; the self-luminous image source 101 is used for emitting a first light beam polarization splitting prism, is positioned on a propagation path of the first light beam, and is used for selecting the first light beam as a first polarized light beam; the first phase retarder 103 and the first reflection element 104 are sequentially located on a propagation path of the first polarized light beam, and the first polarized light beam passes through the first phase retarder 103, is reflected by the first reflection element 104, and then passes through the first phase retarder 103 to form a second polarized light beam; the polarization beam splitter prism 102 is also located on the propagation path of the second polarized light beam, and at least used for reflecting the second polarized light beam and emitting the second polarized light beam. The second phase retarder 105 and the second reflecting element 106 are sequentially located on a propagation path of the second polarized light beam, and the second polarized light beam passes through the second phase retarder 105, is reflected by the second reflecting element 106, and then passes through the second phase retarder 105 to form a third polarized light beam; the polarization beam splitter prism 102 is also located on the propagation path of the third polarized light beam, and at least used for reflecting the third polarized light beam and emitting the third polarized light beam.

An optical simulation test was performed on the near-eye display system provided by the embodiment of the present invention by using optical Studio software, and fig. 4 is a point diagram of the near-eye display system provided by the embodiment of the present invention. The point diagram is one of the most common evaluation methods in modern optical design, and many light rays emitted from one point pass through an optical system, and the intersection points of the light rays and an image surface are not concentrated on the same point any more due to aberration, so that a dispersion pattern scattered in a certain range is formed, and the dispersion pattern is called as the point diagram. As shown in fig. 4, the polarized light beams emitted by the near-eye display system and entering the eyes of the user are parallel light, and the root mean square radius value ((RMS radius) of the near-eye display system at each field of view position is controlled to be RMS <17um, which illustrates that the polarized light beams emitted by the near-eye display system have lower chromatic aberration and aberration under the horizontal and vertical fields of view of the eyes, and the user can see the visual image with high definition.

Fig. 5 is a MTF graph of a near-eye display system according to an embodiment of the present invention. As shown in FIG. 5, the transfer function is substantially above 0.7 when the spatial frequency in the MTF curve satisfies 12 cycles/mm, and the eye has a large eye movement range within the visual field range of the horizontal and vertical directions of the eye, and can be imaged on the retina of the eye with high definition.

Compared with the near-eye display system in the prior art, the near-eye display system provided by the embodiment of the invention does not need extra light source illumination, can realize that a user can receive clear and complete images in a larger market range under the near-eye display system with small volume by changing the refraction light path of the first light beam, and is thinner, simpler and more compact, and easy to integrate.

Fig. 6 is a schematic structural diagram of a near-eye display device according to an embodiment of the present invention, and as shown in fig. 6, the near-eye display device 200 includes an optical waveguide element 201 and the near-eye display system 100 according to any one of the embodiments.

The optical waveguide element is used for totally reflecting incident light rays through the inside of the optical waveguide element, so that transverse transmission of the incident light rays is achieved, the propagation distance of the light rays is increased, and the light path is folded. The optical waveguide element may be a geometric array optical waveguide or a diffractive optical waveguide, and the material of the optical waveguide element may include silicon oxide, silicon and the like. In other embodiments, the optical waveguide element may also be an optical waveguide of other types and structures, and the material of the waveguide sheet may accordingly also be other suitable materials.

It should be noted that, since the near-eye display device provided in this embodiment has the same or corresponding beneficial effects as those of the above embodiments, details are not described herein.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A near-eye display system, comprising: the self-luminous type image source, the polarization beam splitter prism, at least one first phase retarder and a first reflecting element;

the self-luminous image source is used for emitting a first light beam;

2. The near-eye display system of claim 1 further comprising: at least one second phase delay piece and a second reflective element;

3. The near-eye display system of claim 2 wherein the first reflective element is a collimating element; alternatively, the second reflective element is a collimating element.

4. The near-eye display system of claim 3 wherein when the first reflective element is a collimating element, the first reflective element is a spherical mirror or an aspheric mirror; or, when the second reflecting element is a collimating element, the second reflecting element is a spherical mirror or an aspheric mirror.

5. The near-eye display system of claim 1 wherein the first reflective element is a collimating element.

6. The near-eye display system of claim 2 wherein the total amount of phase retardation of at least one of the first phase retarders is λ/2+ n λ; the total phase delay amount of at least one second phase delay piece is lambda/2 + m lambda, wherein n and m are integers which are more than or equal to 0.

7. The near-eye display system of claim 6 wherein at least one of the first phase retarders and at least one of the second phase retarders each comprise a quarter-wave plate.

8. The near-eye display system of claim 1 further comprising a polarizing component positioned in a propagation path of the first light beam for selecting the first light beam as linearly polarized light,

9. The near-eye display system of claim 1 wherein the self-emissive image source is at least one of a light emitting display diode, an organic light emitting diode, or a micro light emitting diode.

10. A near-eye display device comprising an optical waveguide element and the near-eye display system of any one of claims 1-9.