CN114779475A - Display device and wearable display equipment - Google Patents
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Abstract
The present disclosure provides a display device and a wearable display apparatus. The display device includes: a first display screen; the double-convex lens is arranged on the light emitting side of the first display screen and used for transmitting first emergent light of the first display screen so as to enable a first display image of the first display screen to form an image; the second display screen is arranged at one end of the lenticular lens so that second emergent light of the second display screen is not blocked by the lenticular lens; the reflector is arranged on the light emergent side of the second display screen, is positioned on one side of the lenticular lens, which is far away from the first display screen, and is used for reflecting second emergent light of the second display screen to the lenticular lens; the lenticular lens is used for reflecting the second emergent light reflected by the reflector so that the second display image of the second display screen and the first display image form a continuous image, the display image formed at the eyes of a person is guaranteed not to have a seam, and the seam problem of the display device is solved.
Description
Technical Field
The present disclosure relates to the field of near-to-eye display technologies, and in particular, to a display device and a wearable display apparatus.
Background
With the recent continuous development of Virtual Reality (VR) and Augmented Reality (AR) technologies, near-eye display products have been widely used in the civil fields of movies, education, medical treatment, and the like, from the beginning of military applications.
The field angle of mainstream virtual reality display products is generally 90-110 degrees, and the field angle can be increased through screen splicing at present, but the splicing problem can be caused when a plurality of screens are spliced, so that the display effect is influenced.
Disclosure of Invention
In view of the above, an object of the present disclosure is to provide a display device and a wearable display apparatus.
In view of the above object, the present disclosure provides a display device including:
a first display screen;
the lenticular lens is arranged on the light emitting side of the first display screen and used for transmitting first emergent light of the first display screen to enable a first display image of the first display screen to be imaged;
the second display screen is arranged at one end of the lenticular lens, so that second emergent light of the second display screen is not shielded by the lenticular lens;
the reflector is arranged on the light emitting side of the second display screen, is positioned on one side of the lenticular lens, which is far away from the first display screen, and is used for reflecting second emergent light of the second display screen to the lenticular lens;
the double-convex lens is used for reflecting the second emergent light reflected by the reflector so that a second display image of the second display screen and the first display image form a continuous image.
Optionally, the lenticular lens includes:
the transmission area comprises an antireflection film arranged on one side of the lenticular lens, which is far away from the first display screen, and is used for transmitting at least part of the first emergent light;
and the reflecting area comprises a reflection increasing film arranged on one side of the biconvex lens, which is far away from the first display screen, and is used for reflecting at least part of the second emergent light reflected by the reflector.
Optionally, the lenticular lens further includes:
the semi-transparent semi-reflective region is positioned between the transmission region and the reflection region and comprises a semi-transparent semi-reflective film arranged on one side of the biconvex lens, which is far away from the first display screen; the transflective region is used for transmitting part of the first emergent light and reflecting part of the second emergent light so as to enable part of the first display image to be overlapped with part of the second display image.
Optionally, the transmissive region includes an antireflection film disposed on a side of the lenticular lens close to the first display screen, and the reflective region includes a light absorbing layer disposed on a side of the lenticular lens close to the first display screen; or, an antireflection film is arranged on the whole surface of one side, close to the first display screen, of the biconvex lens.
Optionally, the center of the first display screen coincides with the optical axis of the lenticular lens, and the imaging viewing angle corresponding to the first display screen is symmetric with respect to the optical axis of the lenticular lens; the second display screen comprises a first sub display screen and a second sub display screen which are symmetrically arranged relative to the first display screen.
Optionally, imaging viewing angles corresponding to the first sub-display screen and the second sub-display screen are symmetric with respect to an optical axis of the lenticular lens.
Optionally, the imaging viewing angle range corresponding to the transmission region is-40 degrees to-40 degrees, the imaging viewing angle range corresponding to the reflection region is-55 degrees to-35 degrees and 35 degrees to 55 degrees, and the imaging viewing angle range corresponding to the transflective region is-40 degrees to-35 degrees and 35 degrees to 40 degrees.
Optionally, the imaging viewing angles corresponding to the first sub-display screen and the second sub-display screen are symmetric about the optical axis of the lenticular lens, and the imaging viewing angle corresponding to the first sub-display screen close to the inner side of the human eye is smaller than the imaging viewing angle corresponding to the second sub-display screen close to the outer side of the human eye.
Optionally, a half-transparent and half-reflective film is arranged on the whole side of the lenticular lens, which is far away from the first display screen.
Optionally, the second display image and the first display image are formed at a position where a human eye is located, a horizontal distance between the position where the human eye is located and the second display screen is 15-20 mm, and the size of an eye box at the position where the human eye is located is phi 8-phi 10 mm.
Optionally, an imaging focal length of the lenticular lens corresponding to the first display screen is 35mm to 40mm, and an imaging focal length of the lenticular lens corresponding to the second display screen is 20mm to 26 mm.
In the alternative,
the biconvex lens comprises one of a spherical lens, an aspherical lens and a free-form surface lens, and the material of the biconvex lens comprises plastic or glass;
the reflector comprises one of a spherical lens, an aspherical lens and a free-form surface lens, the material of the reflector comprises plastic or glass, and the reflector comprises a reflecting film facing the second display screen.
The present disclosure also provides a wearable display apparatus comprising a display device as in any of the above.
From the above, it can be seen that the display device and the wearable display apparatus provided by the present disclosure, the imaging of the first display image of the first display screen is realized by the first emergent light of the first display screen being transmitted through the lenticular lens, the second emergent light of the second display screen is reflected to the lenticular lens through the reflector, and then the second emergent light is reflected by the lenticular lens to realize the imaging of the second display image of the second display screen, so that the second display image and the imaging of the first display image form a continuous image without a seam, thereby ensuring that no seam exists between the imaged first display image and the imaged second display image, and solving the seam problem of the display device.
Drawings
In order to more clearly illustrate the technical solutions in the present disclosure or related technologies, the drawings needed to be used in the description of the embodiments or related technologies are briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the disclosure;
fig. 2 is a schematic structural diagram of a lenticular lens in a display device according to an embodiment of the present disclosure;
fig. 3 is another schematic structural diagram of a lenticular lens in a display device according to an embodiment of the disclosure;
fig. 4a is a schematic optical path diagram of a transmission region of a lenticular lens according to an embodiment of the present disclosure;
FIG. 4b is a schematic optical path diagram of a reflective region of a lenticular lens according to an embodiment of the present disclosure;
fig. 4c is a schematic optical path diagram of the transflective region of the lenticular lens according to the embodiment of the disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, the present disclosure will be described in further detail below with reference to specific embodiments and the accompanying drawings.
It is to be noted that technical terms or scientific terms used in the embodiments of the present disclosure should have a general meaning as understood by those having ordinary skill in the art to which the present disclosure belongs, unless otherwise defined. The use of "first," "second," and similar terms in the embodiments of the disclosure is not intended to indicate any order, quantity, or importance, but rather to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item preceding the word comprises the element or item listed after the word and its equivalent, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
A near-eye display device refers to a display apparatus worn on the eyes of a user, and for example, the near-eye display device is generally presented in the form of glasses or a helmet. Near-eye display devices may provide AR and VR experiences for users. In the AR near-eye display technology, a virtual image generated by a near-eye display device is displayed in a superimposed manner with a real image of the real world, so that a user can see a final enhanced real image from a screen. The VR near-eye display technology displays images of left and right eyes on near-eye displays corresponding to the left and right eyes, respectively, and the left and right eyes can synthesize stereoscopic vision in the brain after acquiring image information with differences, respectively.
As described in the background art, in order to increase the field angle of a virtual reality display product in the prior art, the display screen is usually spliced. However, when a plurality of display screens are spliced together, because each display screen is spliced on the same plane, the display screen formed by splicing has a spliced seam, the spliced seam can be correspondingly displayed, the image seen by human eyes can also have the spliced seam, and the display effect of the virtual reality display product is greatly influenced.
In view of this, the present disclosure provides a display device, which can solve the problem of seam splicing while improving the viewing angle of the display device through display screen splicing.
As shown in fig. 1, the display device includes a first display screen 1, a lenticular lens 2, a second display screen 3, and a mirror 4.
The first display screen 1 and the second display screen 3 serve as image sources for displaying images. In this embodiment, the first display screen 1 is configured to display a first display image, the second display screen 3 is configured to display a second display image, the first display image and the second display image both include at least a part of an image displayed by the display device, and a complete image is formed by splicing the first display image and the second display image for a user to view.
The first display screen 1 and the second display screen 3 may be a Liquid Crystal Display (LCD), an Organic Light Emitting Diode (OLED) or a Micro organic light emitting diode (Micro OLED), which is not limited herein. The first display screen 1 and the second display screen 3 in the display device are usually small in size, which may be generally 0.39 "-5.7", and are installed in the display device.
The lenticular lens 2 is disposed on a light emitting side of the first display screen 1, and configured to transmit first emergent light of the first display screen so as to form an image of a first display image of the first display screen. The first emergent light of the first display screen 1 firstly enters the lenticular lens 2, is amplified by the lenticular lens 2 and then converges at the position where human eyes are located, so that a first display image of the first display screen 1 can be imaged. In this embodiment, the first display image of the first display screen 1 can be imaged at an eye box (eye box) after being transmitted by the lenticular lens 2.
The second display screen 3 is disposed at one end of the lenticular lens 2 so that the second outgoing light of the second display screen 3 is not blocked by the lenticular lens 2. In this embodiment, a part of the second outgoing light of the side of the second display screen 3 close to the lenticular lens 2 is not blocked by the lenticular lens 2, that is, the lenticular lens 2 is not located on the light path of the second outgoing light, and the second outgoing light is not incident on the mirror surface of the side of the lenticular lens 2 close to the first display screen 1, so that the lenticular lens 2 does not block the second outgoing light.
The reflector 4 is arranged on the light-emitting side of the second display screen 3 and located at the position where the lenticular lens 2 is far away from one side of the first display screen 1, and is used for reflecting second emergent light of the second display screen 3 to the lenticular lens 2.
The lenticular lens 2 is configured to reflect the second outgoing light reflected by the reflector 4, so that a second display image of the second display screen 3 and the first display image form a continuous image. The second display image and the first display image form a continuous image, that is, the imaged image of the second display image and the imaged image of the first display image are partially overlapped or connected but not overlapped, that is, the spliced image formed by imaging the second display image and the first display image does not have a seam. For example, when the second display image and the first display image are imaged at the positions of the human eyes, the image formed by splicing the second display image and the first display image, which is observed by the human eyes, is continuous and has no seam.
In this embodiment, the second emergent light of the second display screen 3 is incident on the reflector 4 after being emitted, the reflector 4 reflects the second emergent light to the mirror surface of the side of the lenticular lens 2 away from the first display screen 1, and then the lenticular lens 2 reflects the second emergent light to the imaging position of the first emergent light, so that the second display image and the first display image form a continuous image without a seam, and thus the first display image and the second display image imaged at human eyes do not have a seam.
In this embodiment, the lenticular lens is used for perspective of the first emergent light of the first display screen to realize imaging of the first display image of the first display screen, the reflector is used for reflecting the second emergent light of the second display screen to the lenticular lens, and the lenticular lens is used for reflecting the second emergent light to realize imaging of the second display image of the second display screen, so that the second display image and the first display image form a continuous image, a seam cannot be formed between the imaged first display image and the imaged second display image, and the problem of seam splicing of the display device is solved.
Optionally, in this embodiment, the display device may be a near-eye display device.
Optionally, as shown in fig. 1, a second display screen 3 is disposed between the first display screen 1 and the lenticular lens 2; alternatively, the second display 3 may be disposed on the backlight side of the first display 1; alternatively, the second display 3 may be disposed on a side of the lenticular lens 2 away from the first display 1, which is not limited in this embodiment.
In some embodiments, as shown in fig. 2, the lenticular lens 2 includes a transmissive region 201 and a reflective region 202. The transmission region 201 includes an antireflection film disposed on a side of the lenticular lens 2 away from the first display screen 1, and the transmission region 201 is configured to transmit at least a part of the first outgoing light; the reflection area 202 includes a reflection increasing film disposed on a side of the lenticular lens 2 away from the first display screen 1, and the reflection area 202 is configured to reflect at least a part of the second outgoing light reflected by the reflector 4.
In this embodiment, as shown in fig. 4a, first emergent light of the first display screen 1 enters the transmission region 201 of the lenticular lens 2, and is transmitted by the transmission region 201 to realize imaging of a first display image; as shown in fig. 4b, the second emergent light of the second display screen 3 is reflected by the reflector 4 and then enters the reflection area 202 of the lenticular lens 2, and is reflected by the reflection area 202 to realize the imaging of the second display image.
The antireflection film is attached to the mirror surface of the lenticular lens 2 on the side away from the first display screen 1 and is located in the transmission region 201, and the arrangement of the antireflection film reduces or eliminates reflected light of first emergent light when the first emergent light passes through the transmission region 201, so that stray light of the display device is reduced or eliminated. The reflection increasing film is attached to the mirror surface of the lenticular lens 2 on the side away from the first display screen 1 and located in the reflection area 202, and the reflection increasing film reduces the transmittance of the light reflected to the reflection area 202 by the reflector 2 and improves the reflectance thereof, so that stray light reflected by the reflector 2 of the second display screen 3 can be reduced or even prevented from reaching human eyes.
In this embodiment, as shown in fig. 2, the lenticular lens 2 may include only the transmissive region 201 and the reflective region 202, and enables the imaged images of the first outgoing light transmitted through the transmissive region 201 and the second outgoing light reflected by the reflective region 202 to be spliced together properly, thereby solving the problem of the seam of the displayed image in the display device.
In other embodiments, as shown in fig. 3, the lenticular lens 2 includes not only the transmissive region 201 and the reflective region 202 but also the transflective region 203. The transflective region 203 is located between the transmissive region 201 and the reflective region 203, and includes a transflective film disposed on a side of the lenticular lens 2 away from the first display panel 1; the transflective region 203 is configured to transmit a portion of the first outgoing light and reflect a portion of the second outgoing light, so that an image of a portion of the first display image overlaps an image of a portion of the second display image. In this embodiment, the transflective region 203 is located between the transmissive region 201 and the reflective region 202, and the transflective film is attached to the mirror surface of the lenticular lens 2 on the side away from the first display panel 1 and located between the antireflection film and the reflection increasing film. As shown in fig. 4c, the transflective region 203 corresponds to a field of view overlapping region, and the imaging of a part of the first display image and the imaging of a part of the second display image are overlapped by the transflective region 203, so as to avoid a visible seam from the first display screen 1 to the second display screen 3.
In some embodiments, the size of the overlapping region corresponding to the transflective region 203 is related to the overlapping field range Δ θ and the distance L between the human eye and the lenticular lens 2, i.e., the overlapping region tan (θ 1) × L-tan (θ 2) × L, and θ 1- θ 2 ═ Δ θ, where Δ θ is optionally an angle of 3 ° to 5 °, and L is optionally an angle of 25mm to 35 mm.
In other embodiments, the transmissive region 201 includes an antireflection film disposed on a side of the lenticular lens 2 close to the first display screen 1, and the reflective region 202 includes a light absorbing layer disposed on a side of the lenticular lens 2 close to the first display screen 1; or, an antireflection film is arranged on the whole surface of one side, close to the first display screen, of the lenticular lens 2.
In this embodiment, an antireflection film is disposed on a portion of the mirror surface of the lenticular lens 2 on the side close to the first display screen 1, where the portion is located in the transmission region 201, so as to reduce or eliminate reflected light of the first emergent light when the first emergent light passes through the transmission region 201, thereby reducing or eliminating stray light of the display device. The part of the mirror surface of the lenticular lens 2 close to the side of the first display screen 1, which is located in the reflection area 202, is provided with a light-absorbing layer, which can be implemented by performing a blackening process on the reflection area 202, and stray light of the display device is reduced or eliminated by the light-absorbing layer. Or, an antireflection film is arranged on the whole surface of the mirror surface of the lenticular lens 2 on the side close to the first display screen 1, and the influence of stray light is weakened through the design of the mirror surface shape of the lenticular lens 2.
In other embodiments, a half-transparent and half-reflective film is disposed on the whole side of the lenticular lens 2 away from the first display screen, and the stray light reflected by the reflector 4 from the second display screen 3 is reduced or even prevented from reaching human eyes by the mirror surface design.
In some embodiments, the center of the first display screen 1 coincides with the optical axis of the lenticular lens 2, and the corresponding imaging viewing angle of the first display screen 1 is symmetric about the optical axis of the lenticular lens. The transmissive region 201 is disposed in the center of the lenticular lens 2, the reflective region 202 is disposed at the edge of the lenticular lens 2, and the reflective region 202 surrounds the transmissive region 201.
As shown in fig. 1 to 3, the second display screen 3 includes a first sub display screen and a second sub display screen symmetrically arranged with respect to the first display screen 1, so that an image is displayed by splicing the first sub display screen and the second sub display screen symmetrically arranged with respect to the first display screen 1. Correspondingly, the reflector also comprises a first sub reflector arranged at the light-emitting side of the first sub display screen and a second sub reflector arranged at the second sub display screen, so that the problem of splicing seams between the first sub display screen and the first display screen 1 and between the first display screen 1 and the second sub display screen is solved respectively.
In this embodiment, the first sub-display and the second sub-display may be arranged in a vertical direction, or may also be arranged in a horizontal direction, or may also be arranged at a predetermined angle with respect to the horizontal direction, which is not limited in this embodiment.
The first sub-display screen and the second sub-display screen are arranged in the vertical direction as an example, and it is assumed that the first sub-display screen is located above the first display screen 1 and the second sub-display screen is located below the first display screen 1, the corresponding first sub-reflector is disposed above the lenticular lens 2 far away from one side of the first display screen 1, and the second sub-reflector is disposed below the lenticular lens 2 far away from one side of the first display screen 1.
As shown in fig. 4b, second emergent light of a partial region of the first sub-display screen, which is far away from the lenticular lens 2, is reflected by the first sub-reflector and then enters the reflection region 202 above the lenticular lens 2, and is reflected by the reflection region 202 and then enters the position of the eye box for imaging; second emergent light of the partial area of the lenticular lens 2 of the second sub-display screen is reflected by the second sub-reflector and then enters the reflection area 202 below the lenticular lens 2, and then is reflected by the reflection area 202 and then enters the position of the eye box for imaging.
As shown in fig. 4c, the second outgoing light of the partial region of the first sub-display close to the lenticular lens 2 is reflected by the first sub-reflector and then enters the semi-transparent and semi-reflective region 203 above the lenticular lens 2, and part of the outgoing light is reflected to the position of the eye box through the semi-transparent and semi-reflective region 203; the first emergent light of the partial area of the first display screen 1 close to the first sub-display screen enters the transflective region 203 above the lenticular lens 2, and the first emergent light transmitted to the position of the eye box through the transflective region 203 overlaps with the imaging area of the second emergent light reflected by the first sub-reflector and the transflective region 203.
Correspondingly, second emergent light of a partial area of the second sub-display screen close to the lenticular lens 2 is reflected by the second sub-reflector and then enters the semi-transparent and semi-reflective area 203 below the lenticular lens 2, and partial emergent light is reflected to the position of the eye box through the semi-transparent and semi-reflective area 203; the first emergent light of the partial area of the first display screen 1 close to the second sub-display screen enters the transflective region 203 below the lenticular lens 2, and the first emergent light transmitted to the position of the eye box through the transflective region 203 overlaps with the imaging area of the second emergent light reflected by the second sub-reflector and the transflective region 203. The first sub-display screen and the second sub-display screen may be bar-shaped display screens arranged oppositely, or the first sub-display screen and the second sub-display screen may also be display screens of any shapes, or the second display screen 3 may also include an annular display screen arranged around the first display screen 1, and this embodiment does not display this.
In some embodiments, the orthographic projection of the second display screen 3 on the plane where the first display screen 1 is located may be partially overlapped with the first display screen 1, or may not be overlapped at all, which is not limited in this embodiment.
Optionally, in this embodiment, the imaging angle of view corresponding to the first display screen 1 may be greater than the imaging angle of view corresponding to the second display screen 3, or the imaging angle of view corresponding to the first display screen 1 may also be equal to or less than the imaging angle of view corresponding to the second display screen 3 if necessary, which is not limited in this embodiment. The total field angle of the display device in the embodiment is 1-150 degrees, and can reach the visual limit of human eyes.
In some embodiments, the imaging viewing angles of the first sub-display and the second sub-display may be symmetric about the optical axis of the lenticular lens 2, so that the viewing angles of the first sub-display and the second sub-display are the same.
When the corresponding viewing angles of the first sub-display and the second sub-display are the same, the imaging viewing angle range corresponding to the transmission region 201 is-40 degrees to 40 degrees, the imaging viewing angle range corresponding to the reflection region 202 is-55 degrees to 35 degrees and 35 degrees to 55 degrees, and the imaging viewing angle range corresponding to the transflective region 203 is-40 degrees to-35 degrees and 35 degrees to 40 degrees.
In other embodiments, the imaging viewing angles corresponding to the first sub-display and the second sub-display are asymmetric with respect to the optical axis of the lenticular lens, and the imaging viewing angle corresponding to the first sub-display near the inner side of human eyes is smaller than the imaging viewing angle corresponding to the second sub-display near the outer side of human eyes, so as to prevent interference between the optical systems of the left eye and the right eye.
In some embodiments, the second display image and the first display image are formed at positions of eyes, and the horizontal distance between the positions of the eyes and the second display screen 3, that is, the exit pupil distance, is 15-20 mm, so that the eyes are prevented from being too close to the display device, and the wearing of audiences is facilitated.
Optionally, the size of the eye box at the position of the human eye is phi 8 mm-phi 10 mm.
In some embodiments, the imaging focal length f1 of the lenticular lens 2 corresponding to the first display screen 1 is 35mm to 40mm, and the imaging focal length f2 of the lenticular lens 2 corresponding to the second display screen 2 is 20mm to 26 mm.
In the display device according to the embodiment of the present disclosure, the surface types of the lenticular lens 2 and the reflective mirror 4 and the distance therebetween all affect the imaging quality, and the embodiment of the present disclosure determines the distance between the optical components and the surface type of each optical component in consideration of various factors such as curvature of field, distortion, and optical transfer function.
Specifically, the lenticular lens 2 includes one of a spherical lens, an aspherical lens, and a free-form lens, and the material of the lenticular lens 2 includes plastic or glass; the reflecting mirror 4 includes one of a spherical lens, an aspherical lens, and a free-form surface lens, the material of the reflecting mirror 4 includes plastic or glass, and the reflecting mirror 4 includes a reflecting film disposed facing the second display screen 3.
Based on the same inventive concept, the present disclosure also provides a wearable display apparatus including the display device according to any one of the above embodiments, corresponding to the display device according to any one of the above embodiments. For example, the wearable display device may be a wearable VR headset, VR glasses, or the like.
In this embodiment, when the display device of this embodiment is used to manufacture wearable display devices such as VR helmets and VR glasses, two lenses of the display device of this embodiment that is symmetrically arranged can be used to manufacture VR helmets and VR glasses to correspond to the left eye and the right eye, respectively, and images displayed on the display screen corresponding to the left eye and the right eye may have some information differences, so that after the left eye and the right eye receive corresponding images, the images can be synthesized in the brain to generate a stereoscopic visual effect. Therefore, VR display of the two eyes of the user is achieved.
The wearable display apparatus of the above embodiment includes the corresponding display device in any of the foregoing embodiments, and has the beneficial effects of the corresponding display device embodiment, which are not described herein again.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the present disclosure, also technical features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present disclosure as described above, which are not provided in detail for the sake of brevity.
In addition, well-known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown in the provided figures for simplicity of illustration and discussion, and so as not to obscure the embodiments of the disclosure. Furthermore, devices may be shown in block diagram form in order to avoid obscuring embodiments of the present disclosure, and this also takes into account the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform within which the embodiments of the present disclosure are to be implemented (i.e., specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the disclosure, it should be apparent to one skilled in the art that the embodiments of the disclosure can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative instead of restrictive.
While the present disclosure has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations thereof will be apparent to those skilled in the art in light of the foregoing description. For example, other memory architectures (e.g., dynamic ram (dram)) may use the embodiments discussed.
The disclosed embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalents, improvements, and the like that may be made without departing from the spirit or scope of the embodiments of the present disclosure are intended to be included within the scope of the disclosure.
Claims (13)
1. A display device, comprising:
a first display screen;
the lenticular lens is arranged on the light emitting side of the first display screen and used for transmitting first emergent light of the first display screen to enable a first display image of the first display screen to be imaged;
the second display screen is arranged at one end of the lenticular lens, so that second emergent light of the second display screen is not shielded by the lenticular lens;
the reflector is arranged on the light emitting side of the second display screen, is positioned on one side of the lenticular lens, which is far away from the first display screen, and is used for reflecting second emergent light of the second display screen to the lenticular lens;
the double-convex lens is used for reflecting the second emergent light reflected by the reflector so that a second display image of the second display screen and the first display image form a continuous image.
2. The apparatus of claim 1, wherein the lenticular lens comprises:
the transmission area comprises an antireflection film arranged on one side of the lenticular lens, which is far away from the first display screen, and is used for transmitting at least part of the first emergent light;
and the reflecting area comprises a reflection increasing film arranged on one side of the biconvex lens, which is far away from the first display screen, and is used for reflecting at least part of the second emergent light reflected by the reflector.
3. The apparatus of claim 2, wherein the lenticular lens further comprises:
the semi-transparent semi-reflective region is positioned between the transmission region and the reflection region and comprises a semi-transparent semi-reflective film arranged on one side of the biconvex lens, which is far away from the first display screen; the transflective region is used for transmitting part of the first emergent light and reflecting part of the second emergent light so as to enable part of the first display image to be overlapped with part of the second display image.
4. The device according to claim 2 or 3, wherein the transmissive region includes an antireflection film provided on a side of the lenticular lens close to the first display screen, and the reflective region includes a light absorbing layer provided on a side of the lenticular lens close to the first display screen; or, an antireflection film is arranged on the whole surface of one side, close to the first display screen, of the biconvex lens.
5. The apparatus of claim 3, wherein the center of the first display screen coincides with the optical axis of the lenticular lens, and the corresponding imaging viewing angle of the first display screen is symmetric about the optical axis of the lenticular lens; the second display screen comprises a first sub display screen and a second sub display screen which are symmetrically arranged relative to the first display screen.
6. The apparatus of claim 5, wherein the first sub-display and the second sub-display have corresponding imaging viewing angles that are symmetric about an optical axis of the lenticular lens.
7. The device of claim 6, wherein the transmissive region corresponds to an imaging viewing angle range of-40 ° to 40 °, the reflective region corresponds to an imaging viewing angle range of-55 ° to 35 ° and 35 ° to 55 °, and the transflective region corresponds to an imaging viewing angle range of-40 ° to-35 ° and 35 ° to 40 °.
8. The apparatus of claim 5, wherein the first sub-display and the second sub-display have symmetrical imaging viewing angles about an optical axis of the lenticular lens, and wherein the imaging viewing angle of the first sub-display near the inner side of the human eye is smaller than the imaging viewing angle of the second sub-display near the outer side of the human eye.
9. The device of claim 1, wherein the lenticular lens is provided with a transflective film over the entire side of the lenticular lens facing away from the first display screen.
10. The device of claim 1, wherein the second display image and the first display image are imaged at a position of a human eye, a horizontal distance between the position of the human eye and the second display screen is 15-20 mm, and a size of an eye box at the position of the human eye is phi 8-phi 10 mm.
11. The apparatus of claim 1, wherein the lenticular lens has an imaging focal length corresponding to the first display screen of 35mm to 40mm, and the lenticular lens has an imaging focal length corresponding to the second display screen of 20mm to 26 mm.
12. The apparatus of claim 1, wherein the lenticular lens comprises one of a spherical lens, an aspherical lens, and a free-form lens, and a material of the lenticular lens comprises plastic or glass;
the reflector comprises one of a spherical lens, an aspherical lens and a free-form surface lens, the material of the reflector comprises plastic or glass, and the reflector comprises a reflecting film facing the second display screen.
13. A wearable display apparatus comprising the display device of any of claims 1-12.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210478429.6A CN114779475B (en) | 2022-04-29 | 2022-04-29 | Display device and wearable display equipment |
| PCT/CN2023/090516 WO2023207953A1 (en) | 2022-04-29 | 2023-04-25 | Display device and wearable display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210478429.6A CN114779475B (en) | 2022-04-29 | 2022-04-29 | Display device and wearable display equipment |
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| CN114779475A true CN114779475A (en) | 2022-07-22 |
| CN114779475B CN114779475B (en) | 2024-07-02 |
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| CN202210478429.6A Active CN114779475B (en) | 2022-04-29 | 2022-04-29 | Display device and wearable display equipment |
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| WO (1) | WO2023207953A1 (en) |
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| WO2024138975A1 (en) * | 2022-12-29 | 2024-07-04 | 上海视涯技术有限公司 | Near-eye display device and near-eye display optical module |
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| CN117706790B (en) * | 2024-02-05 | 2024-05-24 | 奥琳光学科技(苏州)有限公司 | Virtual reality equipment and peripheral retina defocus adjustment method |
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| Publication number | Publication date |
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| WO2023207953A1 (en) | 2023-11-02 |
| CN114779475B (en) | 2024-07-02 |
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