Patent Description:
An augmented reality (AR) technology is a new technology that seamlessly integrates real world information and virtual world information. With the augmented reality technology, by means of computers and other scientific technologies, physical information (visual information, sound, taste, touch, and etc.), which is difficult to experience within a certain temporal and spatial range in the real world, may be simulated and then superimposed, so that virtual information may be applied to the real world, that is, may be perceived by human beings, thereby achieving sensory experiences beyond reality. With the augmented display technology, the virtual world and the real world may be superimposed on a screen in real time for display and may also interact with each other. <CIT> directs to a near-to-eye display device and method. The near-to-eye display device comprises: a display panel and a lens module. The display panel comprises a plurality of display areas arranged in an array; each display area comprises at least one pixel unit; the lens module comprises a plurality of micro-lenses arranged in an array; the plurality of micro-lenses include a plurality of deflecting micro-lenses; the distance from the ends of the deflecting micro-lenses proximate to the center of the lens module to the display panel is smaller than the distance from the ends distant from the center of the lens module to the display panel; each display area corresponds to at least one micro-lens, and adjacent portions of two adjacent display areas correspond to two different micro-lenses, which include at least one deflecting micro-lens; the deflecting micro-lenses are configured to enable virtual images generated by two adjacent display areas by means of the lens module not to be overlapped. <CIT> directs to an image display device, an image display array <NUM> which is constituted by arranging, for example, minute pixels in two dimensions is provided, and these minute pixels are formed, for example, with light emitting elements having high directivity or display elements which are illuminated with transmission or reflection of illumination light having high directivity. Moreover, micro-lens arrays in each of which one optical element is made to correspond respectively to each pair or set by making a pair in which these minute pixels are adjacent in a horizontal direction or a set in which a plurality these pairs are arranged in direction orthogonal to the horizontal direction an object are provided. Furthermore, one field lens is provided to the whole of micro-lens arrays. Then, the virtual image of the image display array is formed by the micro-lens arrays and the virtual image is enlarged by the field lens, and the enlarged virtual image of the image display array is observed from eyes of the observer. <CIT> directs to a near-eye display having a transmissive display and a diffractive micro-lens array. The transmissive display may be positioned relative to the diffractive micro-lens array so that the distance between the transmissive display and the diffractive micro-lens array is approximately equal to focal length of the diffractive micro-lens array. The transmissive display may also be positioned relative to the diffractive micro-lens array so that a percentage of light emitted from the transmissive display is diffracted by the micro-lens array and collimated into focus on a retina of a human eye. The transmissive display may be further positioned relative to the diffractive micro-lens array so that light from a real world scene passes through transparent portions of the transmissive display and is diffracted by the micro-lens array out of focus of the human eye. <CIT> directs to a display panel with integrated micro-reflectors. The display panel also includes an array of pixel light sources (e.g., micro-LEDs) electrically coupled to corresponding pixel driver circuits (e.g., FETs). The micro-LEDs produce light and the micro-reflectors reduce the divergence of the light produced by the micro-LEDs. Different designs are possible. The micro-reflectors can have different shapes, include the shape of their sidewalls and the shape of their plan cross-section. The array schemes can also vary, including the number of LEDs per micro-reflector. Different fabrication approaches are also possible. In one approach, a support structure is integrated between micro-LEDs. The sides of the support structure are reflective and serve as the reflective sidewalls of the micro-reflector. Alternately, the LED mesa itself can serve as the support structure. <CIT> directs to an AR display system based on a liquid crystal zoom lens. The AR display system comprises a microdisplay, a polarizer, a liquid crystal screen, a half-transparent and half-reflecting mirror and a computer, wherein the microdisplay produces image light; the polarizer polarizes the image light to form image polarized light; the liquid crystal screen is controlled by the computer to form a liquid crystal lens that has a variable focal length and a phase equivalent to a lens; the half-transparent and half-reflecting mirror is coated with a polarizing film, and partially reflects the image polarized light into the liquid crystal lens; ambient light forms ambient polarized light through the polarizing film and enters the liquid crystal lens; the computer loads an image into the microdisplay, simultaneously controls the voltage distribution of electrodes of the liquid crystal screen, adjusts the focal length of the liquid crystal lens, and focuses and images the image polarized light at a depth corresponding to the human eyes; and the image polarized light is e-light in the liquid crystal lens, and the ambient polarized light is o-light in the liquid crystal lens. <CIT> directs to a display device including substantially transparent substrates, a lenslet array including substantially transparent lenslets disposed between the plurality of transparent substrates, and light sources disposed between the substantially transparent substrates. The light sources are operable to emit light towards respective lenslets of the lenslet array, and the lenslet array is configured to render a digital image by reflecting the emitted light towards the light sources.

It is an object of the present disclosure to provide a display panel and a display method.

The object is achieved by the respective independent claims. Further embodiments are defined in the corresponding dependent claims.

In order to clearly illustrate the technical solutions of the embodiments of the disclosure, the drawings of the embodiments will be briefly described in the following; it is obvious that the described drawings are only related to some embodiments of the disclosure and thus are not limitative of the disclosure.

In order to make objects, technical solutions and advantages of the embodiments of the present disclosure, the technical solutions of the embodiments of the present disclosure will be described clearly and completely in connection with the drawings related to the embodiments of the present disclosure. Apparently, the described embodiments are just a part but not all of the embodiments of the present disclosure. Based on the described embodiments herein, those skilled in the art can obtain other embodiment(s), without any inventive work, which should be within the scope of the present disclosure.

Unless otherwise defined, all the technical and scientific terms used herein have the same meanings as commonly understood by one of ordinary skill in the art to which the present disclosure belongs. The terms "first," "second," etc., which are used in the present disclosure, are not intended to indicate any sequence, amount or importance, but distinguish various components. Also, the terms "comprise," "comprising," "include," "including," etc., are intended to specify that the elements or the objects stated before these terms encompass the elements or the objects and equivalents thereof listed after these terms, but do not preclude the other elements or objects. The terms "connect", "connected", etc., are not intended to define a physical connection or mechanical connection, but may include an electrical connection, directly or indirectly. "On," "under," "right," "left" and the like are only used to indicate relative position relationship, and when the position of the object which is described is changed, the relative position relationship may be changed accordingly.

In order to keep the following description of the embodiments of the present disclosure clear and concise, detailed descriptions of known functions and known components are omitted from the present disclosure.

Near-eye display is also referred to as head-mounted display or wearable display, which may create a virtual image within a field of view of one eye or both eyes. The near-eye display may be applied to fields such as aviation, military, medical, digital soldier system, aiming system, etc..

In the field of augmented reality display, the near-eye AR display may be implemented by stitching pixel islands. <FIG> is a schematic diagram of basic principles of near-eye augmented reality display. As illustrated in <FIG>, a near-eye display panel includes a substrate <NUM>, a microlens array <NUM> and a pixel group array <NUM>. The pixel group array <NUM> includes a first pixel group 92a, a second pixel group 92b, a third pixel group 92c and a fourth pixel group 92d. The microlens array <NUM> includes a microlens 90a, a microlens 90b, a microlens 90c and a microlens 90d. The microlens 90a images an image displayed by the first pixel group 92a on a virtual image surface so as to obtain a sub-virtual image 93a, the microlens 90b images an image displayed by the second pixel group 92b on the virtual image surface so as to obtain a sub-virtual image 93b, the microlens 90c images an image displayed by the third pixel group 92c on the virtual image surface so as to obtain a sub-virtual image 93c, and the microlens 90d images an image displayed by the fourth pixel group 92d on the virtual image surface so as to obtain a sub-virtual image 93d. The sub-virtual image 93a, the sub-virtual image 93b, the sub-virtual image 93c and the sub-virtual image 93d are stitched for forming a consecutive virtual image <NUM>, and the virtual image <NUM> is an image obtained by imaging an image displayed by the pixel group array <NUM> through the microlens array <NUM>. Because the angle of the field of view of each microlens (microlens 90a, microlens 90b, microlens 90c or microlens 90d) is less than <NUM> degrees, during the near-eye display, a human eye can only see a portion of the virtual image picture formed by stitching images displayed by <NUM>-<NUM> pixel groups, while cannot simultaneously observe the picture formed by the entire pixel group array <NUM>. Such display effect is unacceptable in the AR display field.

As illustrated in <FIG>, when an eye <NUM> is in a second observation area, the eye <NUM> may only receive the light incident to the second observation area, that is, may only view a portion of the virtual image picture formed by stitching the sub-virtual image 93b and the sub-virtual image 93c, while the eye <NUM> cannot receive the light incident to virtual image pictures for a first observation area and a third observation area, thus may not view the virtual image picture formed by stitching the sub-virtual image 93a and the sub-virtual image 93d.

In addition, for the near-eye display, the depth-of-field distance is <NUM>-<NUM> meters or more. In the near-eye display panel illustrated in <FIG>, the aperture of a microlens is about <NUM>, while it is impossible to implement the depth-of-field distance of <NUM>-<NUM> meters using the microlens with the aperture of <NUM>. According to the actual imaging capability evaluation of microlenses, the maximum imaging depth of field distance of the near-eye display panel illustrated in <FIG> is less than <NUM> and the depth of field distance is smaller.

Some embodiments of the present disclosure provide a display panel, a display device and a display method. The display panel implements image stitching through a first microlens array, and then implements near-eye display and far depth of field through a second lens, so that more or complete virtual images may be viewed and the depth of field is far away. The display panel at least has the following technical characteristics and advantages: high light efficiency, large field of view, thinness, far depth of field, integration of pixel islands.

Embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, however the present disclosure is not limited to these specific embodiments.

<FIG> is a schematic block diagram of a display panel provided by an embodiment of the present disclosure, <FIG> is a schematic diagram of a structure of a display panel provided by an embodiment of the present disclosure, <FIG> is a schematic diagram of a structure of another display panel provided by an embodiment of the present disclosure, and <FIG> is a schematic diagram of imaging of a display panel provided by an embodiment of the disclosure.

For example, as illustrated in <FIG> and <FIG>, a display panel <NUM> includes a first microlens array <NUM>, a pixel island array <NUM> and a second lens <NUM>. The pixel island array <NUM> is configured to display a plurality of sub-original images. The first microlens array <NUM> is configured to converge light emitted from the plurality of sub-original images so as to obtain imaging light, and a first virtual image can be formed by the imaging light on a side of the first microlens array <NUM> which is away from a user viewing side A of the display panel <NUM>. As illustrated in <FIG>, the second lens <NUM> is located on the user viewing side A of the display panel <NUM> relative to the first microlens array <NUM>, that is, the second lens <NUM> is closer to the user viewing side A of the display panel <NUM> relative to the first microlens array <NUM>, and the second lens <NUM> is configured to converge imaging light <NUM> so as to obtain a second virtual image <NUM>. The first virtual image <NUM> is a virtual image in which the plurality of sub-original images are stitched and enlarged, and the second virtual image <NUM> is an enlarged virtual image of the first virtual image <NUM>, that is, the size of the first virtual image <NUM> is smaller than the size of the second virtual image <NUM>.

For example, the display panel <NUM> provided by the embodiments of the present disclosure may be applied to augmented reality (AR) displays. In the present disclosure, the pixel island array <NUM> is directly located in front of a human eye, and light emitted from the pixel island array <NUM> is directly projected to the human eye through optical deflection of multi-layer lenses (e.g., the first microlens array <NUM> and the second lens <NUM>), so that the human eye may see the display contents of the pixel island array <NUM>. While with respect to a user, ambient light outside the display panel may be projected to the human eye from transparent spacing regions in the pixel island array <NUM>, so that the human eye may see scenes outside the display panel <NUM>, thereby achieving the augmented reality display effect. Compared with AR display devices adopting the waveguide technology and the like, the AR display including the display panel <NUM> provided by the embodiments of the present disclosure has higher light energy utilization rate and display effect.

For example, as illustrated in <FIG>, the distance between the first virtual image <NUM> and the display panel <NUM> is smaller than the distance between the second virtual image <NUM> and the display panel <NUM>, that is, an imaging plane of the first virtual image <NUM> is between the display panel <NUM> and an imaging plane of the second virtual image <NUM>. The first virtual image <NUM> and the second virtual image <NUM> are both imaged on a back side (or outside) B which is opposite to the user viewing side (or inside) A of the display panel <NUM>. The user viewing side A and the back side B are two sides of the display panel <NUM>, respectively.

For example, in terms of optical imaging, a plurality of sub-original images displayed by the pixel island array <NUM> are objects of the first microlens array <NUM>, the first virtual image <NUM> is an image of the first microlens array <NUM>, and the first microlens array <NUM> may enlarge and stitch the plurality of sub-original images into a consecutive first virtual image <NUM>. It should be noted that, in practice, the first virtual image <NUM> is not actually imaged.

Accordingly, the first virtual image <NUM> is an object of the second lens <NUM>, and the second virtual image <NUM> is an image of the second lens <NUM>. The second lens <NUM> may enlarge and image the consecutive first virtual image <NUM> at a certain position with a far depth of field so as to obtain a virtual image having the far depth of field, i.e., the second virtual image <NUM> illustrated in <FIG>, thereby achieving the augmented reality display effect having greater depth of field. The second lens <NUM> may deflect the light of the first virtual image <NUM> for entering into an observation area, such as a field of view that a human eye can view, so that the human eye may view part or all of the second virtual image <NUM> simultaneously, thereby achieving the technical effect of near-eye display.

For example, as illustrated in <FIG>, an imaging process of the first microlens array <NUM> and the second lens <NUM> is described by taking Q1 point on the first virtual image <NUM> as an example. Light emitted from one point in a first pixel island 11a in the pixel island array <NUM> is imaged as Q1 point in the first virtual image <NUM> through a first microlens 10a in the first microlens array <NUM>, and Q1 point in the first virtual image <NUM> is imaged as Q2 point in the second virtual image <NUM> through the second lens <NUM>. As illustrated in <FIG>, first polarized light emitted from one point in the first pixel island 11a becomes the imaging light <NUM> (e.g., first imaging light) after being converged by the first microlens 10a. Reverse extension lines of the first imaging light <NUM> may converge at Q1 point in the first virtual image <NUM>. The first imaging light <NUM> is incident into the second lens <NUM>, the first imaging light <NUM> is deflected when passing through the second lens <NUM>, and the light exited from the second lens <NUM> is second imaging light <NUM>. The second imaging light <NUM> may be incident into a human eye <NUM>, and reverse extension lines of the second imaging light <NUM> may converge at Q2 point in the second virtual image <NUM>. Finally, the human eye <NUM> may see Q2 point in the second virtual image <NUM>. The first imaging light <NUM> and the second imaging light <NUM> are both polarized light having a first polarization direction.

It should be noted that in the example illustrated in <FIG>, light emitted from a pixel point in the first pixel island 11a enters the human eye <NUM> passing through the first microlens 10a and then the second lens <NUM>. The solid line with arrow in <FIG> indicates a propagation path of the actual light, while the dashed line indicates a reverse extension line of the actual light.

In the display panel <NUM> provided by the embodiments of the present disclosure, the pixel island array <NUM> is used to implement image display, the first microlens array <NUM> is used to implement image stitching, and the second lens <NUM> is used to implement near-eye display. Therefore, the field of view of the display panel <NUM> is determined by the second lens <NUM>, for example, the field of view of the display panel <NUM> is determined by surface-type parameters (e.g., focal length, aperture, and etc.) of the second lens <NUM>. Compared with a conventional AR display device using waveguide technology or the like, the AR display including the display panel <NUM> provided by the embodiments of the present disclosure has a larger field of view. In addition, in this display panel <NUM>, elements such as the first microlens array, the pixel island array, the second lens and the like may be fabricated to have a small structure, the object plane position of the second lens is the position of the first virtual image, and the second lens may be directly attached to or fabricated on a substrate, so that the overall structure of the display panel <NUM> is thinner and lighter. In addition, the depth of field of the near-eye display panel illustrated in <FIG> is limited by the imaging capability of the microlenses, so that the depth of field is very small. While in the display panel <NUM> provided by the embodiments of the present disclosure, the first microlens array <NUM> is only used to implement image stitching, the depth of field is determined by the second lens <NUM>, and the aperture of the second lens <NUM> is relatively large, so that the display panel <NUM> has the technical effect of far depth of field.

For example, the second lens <NUM> is a polarized lens, which may be, for example, a convex lens. The second lens <NUM> is configured to modulate incident light having a first polarization direction and transmit incident light having a second polarization direction perpendicular to the first polarization direction. That is, the polarized lens may only have the effect as a lens on the polarized light having the first polarization direction, while the polarized lens is equivalent to flat glass for the polarized light having the second polarization direction. The pixel island array <NUM> is configured to emit first polarized light having the first polarization direction, so that the second lens <NUM> may modulate the first polarized light emitted by the pixel island array <NUM>, thus the image displayed by the pixel island array <NUM> may finally be modulated by the second lens <NUM>.

For example, the polarized lens includes a liquid crystal lens or a lens formed of a birefringent material, and the like.

<FIG> is a schematic diagram of a structure of a liquid crystal lens provided by an embodiment of the present disclosure.

The liquid crystal is a biaxial crystal, and the liquid crystal lens only modulates polarized light having a first polarization direction, for example, that is, the liquid crystal lens may only have modulation effect on first polarized light having the first polarization direction. While for second polarized light having a second polarization direction, the refractive index of the liquid crystal layer in the liquid crystal lens for the second polarized light is always equal to a short axis refractive index, that is, the liquid crystal lens is equivalent to a parallel plate, and has no modulation effect on the second polarized light. Meanwhile, the focal length of the liquid crystal lens may be modulated in real time according to the applied modulation signals, therefore, the depth of field finally viewed by a human eye may also be modulated in real time, so that the display panel has the technical effect that the depth of field is controllable. As illustrated in <FIG>, in some embodiments, the liquid crystal lens may include a liquid crystal cell <NUM>, a first electrode <NUM> and a second electrode <NUM>, and the liquid crystal cell <NUM> includes liquid crystal molecules <NUM>. The first electrode <NUM> and the second electrode <NUM> are configured to control deflection angles of liquid crystal molecules in different regions so as to obtain the same phase distribution as a resin lens or a glass lens, thereby forming a lens. For example, when the deflection degree of each liquid crystal molecule is different, the focal length of the lens formed equivalently is also different, that is, the focal length of an optical liquid crystal lens may be adjusted by adjusting the deflection angles of the liquid crystal molecules in different regions.

For example, when deflection angles of liquid crystal molecules in each region of the liquid crystal cell <NUM> are illustrated in <FIG>, an equivalent structure of the liquid crystal lens composed of the liquid crystal cell <NUM>, the first electrode <NUM> and the second electrode <NUM> may be represented as a lens <NUM> illustrated in <FIG>. For example, the lens <NUM> is a convex lens.

For example, the first electrode <NUM> includes a plurality of first sub-electrodes, the plurality of first sub-electrodes are insulated from each other, and the plurality of first sub-electrodes are strip electrodes. The second electrode <NUM> may include a plate electrode. It should be noted that the second electrode <NUM> may also include a plurality of second sub-electrodes, the plurality of second sub-electrodes are strip electrodes and are insulated from each other, and for example, the plurality of second sub-electrodes correspond to the plurality of first sub-electrodes one by one. As illustrated in <FIG>, the first electrode <NUM> and the second electrode <NUM> may be on both sides of the liquid crystal cell <NUM>, but the present disclosure is not limited thereto, and the first electrode <NUM> and the second electrode <NUM> may also be on a same side of the liquid crystal cell <NUM>. The shape, actual number and position of the first electrode <NUM> and the second electrode <NUM> in the present disclosure are not limited as long as the first electrode <NUM> and the second electrode <NUM> may adjust deflection angle of each of the liquid crystal molecules <NUM> in the liquid crystal cell <NUM> as required.

For example, the first electrode <NUM> and the second electrode <NUM> are both transparent electrodes.

For example, the refractive index of a birefringent material which is related to the polarization direction of light waves is anisotropic. The birefringent material may include calcium carbonate crystal, Shi Ying crystal, mica crystal, sapphire crystal, etc..

For example, as illustrated in <FIG>, the display panel <NUM> further includes a first polarizer <NUM>. For example, a transmission axis of the first polarizer <NUM> is parallel to a second polarization direction, so that after ambient light (i.e., natural light) passes through the first polarizer <NUM>, it becomes polarized light having the second polarization direction, and the polarized light having the second polarization direction is not modulated by the second lens <NUM>, that is, ambient light passing through the entire display panel <NUM> is not modulated by the second lens <NUM>. More specifically, the first polarizer <NUM> is configured to filter ambient light incident from the back side B of the display panel <NUM> which is opposite to the user viewing side A of the display panel <NUM>, so as to obtain second polarized light having the second polarization direction. The second lens <NUM> has no modulation effect on the second polarized light, that is, when the second polarized light passes through the second lens <NUM>, its optical paths will not change and still propagate along a straight line, so that the scenes outside the display panel seen by a human eye are not affected and changed by the second lens <NUM>. As a result, ambient light entering the display panel <NUM> from the back side B (i.e., external environment) is not modulated, but directly incident into the human eye, thereby achieving the augmented reality display effect. The first polarizer <NUM> is, for example, a wire grid polarizing layer or a PVA (polyvinyl alcohol) polarizer, and the embodiments of the present disclosure are not limited thereto.

For example, the first microlens array <NUM> and the pixel island array <NUM> are between the first polarizer <NUM> and the second lens <NUM>.

For example, as illustrated in <FIG>, the display panel <NUM> further includes a first substrate <NUM>. The first substrate <NUM> is a transparent substrate, and the transparent substrate may be, for example, a glass substrate, a plastic substrate, or the like. The first microlens array <NUM>, the pixel island array <NUM> and the first polarizer <NUM> are all arranged on the first substrate <NUM>, i.e., the first substrate <NUM> provides supporting and protecting functions, and other structures including the second lens may also be sequentially laminated on the first substrate <NUM>, thereby forming an overall structure.

For example, a projection of the first microlens array <NUM> on the first substrate <NUM> is within a projection of the second lens <NUM> on the first substrate <NUM>. A center of the first microlens array <NUM> is aligned with a center of the second lens <NUM> in a direction perpendicular to the first substrate <NUM>, that is, in the X direction illustrated in <FIG>.

For example, in the direction perpendicular to the first substrate <NUM>, the first polarizer <NUM> is on a first side of the first substrate <NUM>, and the first side of the first substrate <NUM> faces the back side B of the display panel <NUM>. The first microlens array <NUM> and the pixel island array <NUM> are between the first polarizer <NUM> and the second lens <NUM>. A display surface of the pixel island array <NUM> faces the first microlens array <NUM>, so that light emitted from the pixel island array <NUM> may be incident on the first microlens array <NUM> and converged by the first microlens array <NUM> so as to obtain the imaging light <NUM> which can form a consecutive first virtual image <NUM>.

For example, as illustrated in <FIG>, the display surface of the pixel island array <NUM> may be provided with a second polarizer <NUM> so as to exit first polarized light having a first polarization direction. That is, the second polarizer <NUM> is arranged between the pixel island array <NUM> and the first microlens array <NUM> so as to ensure that the light incident on the first microlens array <NUM> is only the first polarized light emitted by the pixel island array <NUM>, and to prevent stray light from interfering with the imaging effect. For example, the second polarizer <NUM> may be a wire grid layer fabricated on the first substrate.

For example, as illustrated in <FIG>, the second polarizer <NUM> may be a one-piece structure. The present disclosure is not limited to this, and the second polarizer may also include a plurality of sub- polarizers corresponding to the plurality of pixel islands in the pixel island array <NUM> one by one.

For example, as illustrated in <FIG> and <FIG>, the display panel <NUM> further includes a second substrate <NUM>. In this example, the second substrate <NUM> may share the supporting function of the first substrate <NUM>, thereby reducing the difficulty of fabrication and improving the yield. The second substrate <NUM> is a transparent substrate and is combined with the first substrate <NUM> in parallel, on a second side of the first substrate <NUM> which faces the user viewing side A of the display panel <NUM>. That is, the second substrate <NUM> is closer to the user viewing side A of the display panel <NUM> relative to the first substrate <NUM>.

For example, as illustrated in <FIG> and <FIG>, the display panel <NUM> may further include a third flat layer <NUM>. The third flat layer <NUM> is between the first substrate <NUM> and the second substrate <NUM>, covers the first microlens array <NUM> and functions as planarization. It should be noted that the refractive index of the third flat layer <NUM> is different from that of each of the first microlenses in the first microlens array <NUM>.

For example, the second lens <NUM> is arranged on the second substrate <NUM>. For example, in the example illustrated in <FIG>, the second lens <NUM> is arranged on a side of the second substrate <NUM> which is away from the first substrate <NUM>. However, the present disclosure is not limited to this, and the second lens <NUM> may also be arranged on a side of the second substrate <NUM> which is close to the first substrate <NUM>. Alternatively, both sides of the second substrate <NUM> are provided with one second lens <NUM>, respectively.

For example, in some examples, the display panel <NUM> may not include the second substrate <NUM>, in this case, the second lens <NUM> is also arranged on the first substrate <NUM>. For example, the second lens <NUM> is on a side of the third flat layer <NUM> which is away from the first microlens array <NUM>.

For example, as illustrated in <FIG> and <FIG>, the first microlens array <NUM> may include a plurality of first microlenses, and the plurality of first microlenses are arranged adjacent to each other or spaced apart from each other. The pixel island array <NUM> includes a plurality of pixel islands, and the plurality of pixel islands are also spaced apart from each other. The spacing regions between the first microlenses are transparent, and the spacing regions between the plurality of pixel islands are also transparent, that is, a gap between adjacent pixel islands allows ambient light from the back side B of the display panel to pass through, and the ambient light may also pass through the gap between the adjacent first microlenses.

For example, the shape, material, refractive index or the like of each of the first microlenses in the first microlens array <NUM> may be designed according to actual application scenarios, and the embodiments of the present disclosure are not limited to this. Each of the first microlenses in the first microlens array <NUM> may have the same shape, material, refractive index, etc..

For example, the shape and size of each pixel island in the pixel island array <NUM> may be the same, or may not be the same.

For example, a plurality of pixel islands correspond to a plurality of first microlenses one by one. For example, in a direction perpendicular to the first substrate <NUM>, each of the first microlenses is arranged to overlap a corresponding pixel island. In the example illustrated in <FIG>, the first microlens array <NUM> includes a first microlens 10a, a first microlens 10b, a first microlens 10c and a first microlens 10d, and the pixel island array <NUM> includes a first pixel island 11a, a second pixel island 11b, a third pixel island 11c and a fourth pixel island 11d. The first microlens 10a corresponds to the first pixel island 11a, the first microlens 10b corresponds to the second pixel island 11b, the first microlens 10c corresponds to the third pixel island 11c, and the first microlens 10d corresponds to the fourth pixel island 11d.

For example, in a direction perpendicular to the first substrate <NUM>, a center of the pixel island array <NUM> is aligned with a center of the first microlens array <NUM>. The size of the pixel islands in the pixel island array <NUM>, the gap between the pixel islands and the optical parameters (including aperture, focal length, etc.) of each of the first microlenses are selected, so that sub-original images displayed by all the pixel islands in the pixel island array <NUM> may be enlarged and stitched into a consecutive first virtual images <NUM> at a certain position with a virtual image distance.

For example, in a direction perpendicular to the first substrate <NUM>, a projection of each pixel island on the first substrate <NUM> is within a projection of the corresponding first microlens on the first substrate <NUM>.

For example, in a direction perpendicular to the first substrate <NUM>, a center of each pixel island is aligned with a center of the corresponding first microlens, thereby ensuring that each of the first microlenses may enlarge the sub-original image displayed by the corresponding pixel island into the corresponding sub-virtual image.

<FIG> is a schematic plan view of a pixel island array provided by an embodiment of the present disclosure.

For example, as illustrated in <FIG>, in some examples, the pixel island array <NUM> includes a plurality of pixel islands arranged in <NUM> rows and <NUM> columns.

For example, each pixel island includes a plurality of pixels, and each pixel may be an organic light emitting diode pixel, an inorganic light emitting diode pixel, a liquid crystal display pixel, a Micro-LED pixel, or the like.

For example, the display panel <NUM> provided by the embodiments of the present disclosure may implement colorized display. As illustrated in <FIG>, in the enlarged schematic diagram of the pixel islands in the dashed circle frame, each pixel island includes <NUM> pixels, and the <NUM> pixels are arranged in <NUM> rows and <NUM> columns. For example, the display panel <NUM> may implement colorized stitching display. All pixels in each pixel island may emit light of a same color, while different pixel islands emit light of different colors. For example, adjacent three pixel islands in a same row respectively emit red light, blue light and green light, and the first virtual image stitched and formed finally is a color image. Alternatively, the display panel <NUM> may be a direct colorized display. For example, each pixel island includes at least a first pixel <NUM>, a second pixel <NUM> and a third pixel <NUM>, and the first pixel <NUM>, the second pixel <NUM> and the third pixel <NUM> respectively emit light of different colors. For example, the first pixel <NUM> emits red light, the second pixel <NUM> emits blue light and the third pixel <NUM> emits green light.

For example, a plurality of pixel islands correspond to a plurality of sub-original images one by one.

<FIG> is a schematic diagram of a plurality of sub-original images provided by an embodiment of the present disclosure.

For example, in some examples, as illustrated in <FIG>, a plurality of sub-original images include a first sub-original image 32a, a second sub-original image 32b, a third sub-original image 32c and a fourth sub-original image 32d, and the plurality of sub-original images constitute a complete original image. For example, the first pixel island 11a displays the first sub-original image 32a, the second pixel island 11b displays the second sub-original image 32b, the third pixel island 11c displays the third sub-original image 32c, and the fourth pixel island 11d displays the fourth sub-original image 32d.

For example, the shape and size of a plurality of sub-original images may be the same. For example, as illustrated in <FIG>, the first sub-original image 32a, the second sub-original image 32b, the third sub-original image 32c and the fourth sub-original image 32d are all rectangular in shape and the same in size. However, the present disclosure is not limited to this, and in some examples, at least some of the sub-original images are different in size, in still other examples, at least some of the sub-original images are different in shape. For example, the plurality of sub-original images are all the same in shape, for example, all rectangular, but at least some of the sub-original images are different in size from each other. It should be noted that the actual number, size, shape or the like of the plurality of sub-original images may be divided according to actual needs, as long as it is ensured that the plurality of sub-original images may be stitched into a complete original image, and the embodiments of the present disclosure are not limited to this.

For example, the first virtual image <NUM> includes a plurality of sub-virtual images, and the plurality of sub-virtual images correspond to a plurality of sub-original images one by one. The imaging light <NUM> includes a plurality of sub-imaging light, and the first microlens array <NUM> is configured to respectively converge light emitted from the plurality of sub-original images so as to obtain the plurality of sub-imaging light, the plurality of sub-imaging light is capable of being respectively imaged as the plurality of sub-virtual images, the plurality of sub-virtual images are stitched with each other so as to obtain a consecutive first virtual image <NUM>, and the plurality of sub-virtual images do not overlap each other in a direction perpendicular to the first substrate <NUM>. As illustrated in <FIG>, in some examples, a plurality of sub-virtual images are respectively a first sub-virtual image 30a, a second sub-virtual image 30b, a third sub-virtual image 30c and a fourth sub-virtual image 30d, and the first microlens 10a converges light emitted from an image (e.g., the first sub-original image) displayed by the first pixel island 11a so as to obtain first sub-imaging light which is capable of being imaged as the first sub-virtual image 30a, and the first sub-virtual image 30a is an enlarged virtual image of the first sub-original image. The first microlens 10b converges light emitted from an image (e.g., the second sub-original image) displayed by the second pixel island 11b so as to obtain second sub-imaging light which is capable of being imaged as the second sub-virtual image 30b, and the second sub-virtual image 30b is an enlarged virtual image of the second sub-original image. The first microlens 10c converges light emitted from an image displayed by the third pixel island 11c (e.g., the third sub-original image) so as to obtain third sub-imaging light which is capable of being imaged as the third sub-virtual image 30c, and the third sub-virtual image 30c is an enlarged virtual image of the third sub-original image. The first microlens 10d converges light emitted from an image displayed on the fourth pixel island 11d (e.g., the fourth sub-original image) so as to obtain fourth sub-imaging light which is capable of being imaged as the fourth sub-virtual image 30d, and the fourth sub-virtual image 30d is an enlarged virtual image of the fourth sub-original image. For example, in a direction parallel to the first substrate <NUM>, i.e., the Y direction in <FIG>, the first sub-virtual image 30a, the second sub-virtual image 30b, the third sub-virtual image 30c and the fourth sub-virtual image 30d are sequentially stitched for obtaining a first virtual image <NUM>, and the first virtual image <NUM> is an enlarged virtual image of the complete original image displayed by the pixel island array <NUM>.

For example, in some embodiments, the first microlens array <NUM> has a transmissive structure, and in a direction perpendicular to the first substrate <NUM>, the first microlens array <NUM> is between the pixel island array <NUM> and the second lens <NUM>, so that light emitted in the display process of the pixel island array <NUM> is transmitted through the first microlens array <NUM> and then incident into a human eye through the second lens <NUM>.

For example, as illustrated in <FIG>, in a direction perpendicular to the first substrate <NUM>, the pixel island array <NUM> is on the first side of the first substrate <NUM>, the first microlens array <NUM> is on a second side of the first substrate <NUM>, and the second side of the first substrate <NUM> faces the user viewing side A of the display panel <NUM>, that is, a display surface of the pixel island array <NUM> may face the human eye <NUM>. The second lens <NUM> is on a side of the first microlens array <NUM> which is away from the first substrate <NUM>.

For example, as illustrated in <FIG>, the display panel <NUM> further includes a third microlens array <NUM>. The third microlens array <NUM> is configured to compensate the deflection effect of the first microlens array <NUM> on ambient light so as to prevent crosstalk of the first polarized light emitted from the pixel island array <NUM> by the ambient light. The third microlens array <NUM> is on the first side of the first substrate <NUM>. For example, the third microlens array <NUM> is on a side of the pixel island array <NUM> which is away from the first substrate <NUM>.

For example, in a direction perpendicular to the first substrate <NUM>, a center of the first microlens array <NUM> is aligned with a center of the third microlens array <NUM>.

For example, the third microlens array <NUM> includes a plurality of third microlenses, and the plurality of first microlenses correspond the plurality of third microlenses one by one. For example, as illustrated in <FIG> and <FIG>, the plurality of third microlenses include a third microlens 13a, a third microlens 13b, a third microlens 13c and a third microlens 13d, and the third microlens 13a corresponds to the first microlens 10a, the third microlens 13b corresponds to the first microlens 10b, the third microlens 13c corresponds to the first microlens 10c, and the third microlens 13d corresponds to the first microlens 10d.

For example, in a direction perpendicular to the first substrate <NUM>, each of the first microlenses is arranged to overlap a corresponding third microlens. As illustrated in <FIG> and <FIG>, the third microlens 13a completely overlaps the first microlens 10a, the third microlens 13b completely overlaps the first microlens 10b, the third microlens 13c completely overlaps the first microlens 10c, and the third microlens 13d completely overlaps the first microlens 10d.

For example, the shape, material, refractive index or the like of the plurality of third microlenses may be designed according to actual application scenarios, and the embodiments of the present disclosure are not limited to this. For example, the shape, material, refractive index or the like of the plurality of third microlenses may be the same.

For example, the refractive index of each of the first microlenses is the same as that of each third microlens, that is, the first microlens and the third microlens are made of a same material.

For example, as illustrated in <FIG>, each of the first microlenses is a convex lens, and accordingly, each third microlens may be a concave lens.

For example, in this example, ambient light is filtered by the first polarizer <NUM> so as to obtain second polarized light having a second polarization direction. The second polarized light passes through the third lens array <NUM>, the first lens array <NUM> and the second lens <NUM> in sequence and finally enters the human eye <NUM>. For the second polarized light, the combination of the third lens array <NUM> and the first lens array <NUM> is equivalent to a flat plate, so that an optical path of the second polarized light after passing through the third lens array <NUM> and the first lens array <NUM> remains unchanged and still propagates along a straight line. Meanwhile, because the second lens <NUM> does not modulate the second polarized light, thus, after the second polarized light passes through the third lens array <NUM>, the first lens array <NUM> and the second lens <NUM> in sequence, it's optical path remains unchanged and propagates along a straight line, so that the ambient light does not interfere with the first polarized light emitted by the pixel island array <NUM>, and the human eye may see scenes outside the display panel <NUM>. The display panel <NUM> may implement augmented reality display.

For example, as illustrated in <FIG>, the display panel <NUM> further includes a first flat layer <NUM>. The first flat layer <NUM> is on a side of the pixel island array <NUM> which is away from the first substrate <NUM>, and between the pixel island array <NUM> and the third microlens array <NUM>. The first flat layer <NUM> is used for planarization in order to form the third microlens array <NUM> thereon, and meanwhile, the first flat layer <NUM> may isolate the pixel island array <NUM> and the third microlens array <NUM>.

For example, the first flat layer <NUM> may be made of an insulating material.

For example, as illustrated in <FIG>, the display panel <NUM> further includes a second flat layer <NUM>. The second flat layer <NUM> is on a side of the third microlens array <NUM> which is away from the first flat layer <NUM>, and between the third microlens array <NUM> and the first polarizer <NUM>.

For example, the refractive index of the second flat layer <NUM> is different from the refractive index of the third microlens array <NUM> so as to ensure that the third microlens array <NUM> may compensate the deflection effect of the first microlens array <NUM> on the ambient light and prevent the influence of the ambient light on the display effect of the display panel <NUM>.

For example, the second flat layer <NUM> may also be made of an insulating material.

It should be noted that the pixel island array, the first microlens array and the third microlens array illustrated in <FIG>, <FIG>, <FIG>, and <FIG> are all schematic, and the actual number, arrangement, shape or the like of the pixel island array, the first microlens array and the third microlens array may be designed according to actual needs, and the present disclosure is not limited to this.

<FIG> is a schematic diagram of a structure of another display panel provided by an embodiment of the present disclosure, and <FIG> is a schematic diagram of imaging of another display panel provided by an embodiment of the present disclosure.

For example, as illustrated in <FIG> and <FIG>, other embodiments of the present disclosure provide a display panel <NUM>, and the display panel <NUM> may include a first microlens array <NUM>, a pixel island array <NUM> and a second lens <NUM>. The pixel island array <NUM> is configured to display a plurality of sub-original images, and the first microlens array <NUM> is configured to converge light emitted from the plurality of sub-original images so as to obtain imaging light <NUM> which is capable of forming a first virtual image <NUM> on a side of the first microlens array <NUM> which is away from a user viewing side A of the display panel <NUM>. Relative to the first microlens array <NUM>, the second lens <NUM> is on the user viewing side of the display panel <NUM>, and the second lens <NUM> is configured to converge the imaging light <NUM> so as to obtain a second virtual image <NUM>. The first virtual image <NUM> is a virtual image in which a plurality of sub-original images are stitched and enlarged, and the second virtual image <NUM> is an enlarged virtual image of the first virtual image <NUM>.

For example, as illustrated in <FIG> and <FIG>, the display panel <NUM> further includes a first substrate <NUM> and a second substrate <NUM>. The first microlens array <NUM> and the pixel island array <NUM> are both arranged on the first substrate <NUM>, and the second lens <NUM> is arranged on the second substrate <NUM>.

For example, the first microlens array <NUM> has a reflective structure. In a direction perpendicular to the first substrate <NUM>, the pixel island array <NUM> is between the first microlens array <NUM> and the second lens <NUM>. Light emitted by the pixel island array <NUM> in the display process is reflected and converged by the first microlens array <NUM>, and then incident into a human eye through the second lens <NUM>.

For example, the first microlens array <NUM> includes a plurality of first microlenses, and the pixel island array <NUM> includes a plurality of pixel islands. In the example illustrated in <FIG>, the first microlens array <NUM> includes a first microlens 20a, a first microlens 20b, a first microlens 20c and a first microlens 20d, and the pixel island array <NUM> includes a first pixel island 21a, a second pixel island 21b, a third pixel island 21c and a fourth pixel island 21d. The first microlens 20a corresponds to the first pixel island 21a, the first microlens 20b corresponds to the second pixel island 21b, the first microlens 20c corresponds to the third pixel island 21c, and the first microlens 20d corresponds to the fourth pixel island 21d.

For example, as illustrated in <FIG>, a surface of the plurality of first microlenses which is away from the pixel island array <NUM> has a transflective film <NUM>. When light emitted from the pixel island array <NUM> is incident on the transflective film <NUM>, part of the light emitted from the pixel island array <NUM> is reflected, and the reflected part of the light (the reflected part of the light is the imaging light <NUM> in <FIG>) is converged through the second lens <NUM> and finally enters a human eye. The other part of the light emitted by the pixel island array <NUM> is transmitted out, and the transmitted part of the light does not participate in imaging. With respect to ambient light from a back side B of the display panel <NUM>, when the ambient light is incident on the transflective film <NUM>, part of the ambient light is reflected, while the other part of the ambient light is transmitted and finally incident into the human eye, so that the human eye may see external objects. The transflective film <NUM> may increase the ambient light incident into the human eye, thereby increasing the transparency and enhancing the effect of augmented reality display.

For example, the pixel island array <NUM> and the first microlens array <NUM> are respectively on both sides of the first substrate <NUM>, the pixel island array <NUM> is on a second side of the first substrate <NUM>, and the first microlens array <NUM> is on a first side of the first substrate <NUM>. For example, the second side of the first substrate <NUM> faces the user viewing side A of the display panel <NUM>, and the first side of the first substrate <NUM> faces the back side B which is opposite to the user viewing side A of the display panel <NUM>.

For example, as illustrated in <FIG>, the display panel <NUM> further includes a first polarizer <NUM>, and the first polarizer <NUM> is on a side of the first microlens array <NUM> which is away from the first substrate <NUM>. The first polarizer <NUM> is configured to filter the ambient light incident from the back side B which is opposite to the user viewing side A of the display panel <NUM> so as to obtain second polarized light having a second polarization direction, thereby ensuring that ambient light transmitted through the entire display panel <NUM> is not modulated by the second lens <NUM>.

For example, as illustrated in <FIG>, the display panel <NUM> further includes a compensation layer <NUM>. The compensation layer <NUM> is between the first microlens array <NUM> and the first polarizer <NUM>. The compensation layer <NUM> is used to planarize the first microlens array <NUM> so as to compensate the deflection effect of the first microlens array <NUM> on ambient light and ensure that the ambient light does not interfere with the imaging effect of the display panel <NUM>.

For example, the compensation layer <NUM> is in direct contact with the first microlens array <NUM>, and the refractive index of the first microlens array <NUM> and the refractive index of the compensation layer <NUM> are the same. For the ambient light (i.e., the second polarized light) incident through the first polarizer <NUM>, the first microlens array <NUM> and the compensation layer <NUM> are equivalent to forming a flat plate, thus the second polarized light may pass through the first microlens array <NUM> and the compensation layer <NUM> without deflection, that is, the optical path of the second polarized light after passing through the compensation layer <NUM> and the first microlens array <NUM> is unchanged, and still propagates along a straight line. Meanwhile, because the second lens <NUM> has no modulation effect on the second polarized light. Therefore, after the second polarized light passes through the first lens array <NUM>, the compensation layer <NUM> and the second lens <NUM> in sequence, it's optical path is unchanged and propagates along a straight line, so that it is ensured that ambient light does not interfere with the first polarized light emitted by the pixel island array <NUM>, and the human eye may see scenes outside the display panel <NUM>. The display panel <NUM> may implement augmented reality display.

For example, as illustrated in <FIG>, the imaging process of the first microlens array <NUM> and the second lens <NUM> is described by taking Q1 point in the first virtual image <NUM> as an example. Light emitted from a point in the first pixel island 21a in the pixel island array <NUM> is imaged as Q1 point in the first virtual image <NUM> through the first microlens 20a in the first microlens array <NUM>, and Q1 point in the first virtual image <NUM> is imaged as Q2 point in the second virtual image <NUM> through the second lens <NUM>. As illustrated in <FIG>, the first polarized light emitted from a point in the first pixel island 21a is reflected and converged through the first microlens 20a so as to obtain imaging light <NUM> (e.g., the first imaging light). Reverse extension lines of the first imaging light <NUM> may converge at Q1 point in the first virtual image <NUM>, the first imaging light <NUM> is incident into the second lens <NUM>, and its optical path is deflected when the first imaging light <NUM> passes through the second lens <NUM>. Light exited from the second lens <NUM> is second imaging light <NUM>, and the second imaging light <NUM> may be incident into the human eye <NUM>. Reverse extension lines of the second imaging light <NUM> may converge at Q2 point in the second virtual image <NUM>. Finally, the human eye <NUM> may see Q2 point in the second virtual image <NUM>. The first imaging light <NUM> and the second imaging light <NUM> are both polarized light having a first polarization direction.

It should be noted that in the example illustrated in <FIG>, the first polarized light emitted by a pixel point in the first pixel island 21a is reflected by the first microlens 20a, and then the reflected first polarized light enters the human eye <NUM> through the second lens <NUM>. The solid line with arrow in <FIG> indicates a propagation path of the actual light, while the dashed line indicates a reverse extension line of the actual light.

It should be noted that the detailed description of the first microlens array <NUM>, the pixel island array <NUM>, the second lens <NUM>, the first substrate <NUM>, the second substrate <NUM>, the first polarizer <NUM> or the like illustrated in <FIG> and <FIG> may refer to the related description of the first microlens array <NUM>, the pixel island array <NUM>, the second lens <NUM>, the first substrate <NUM>, the second substrate <NUM> and the first polarizer <NUM> in the embodiments above illustrated in <FIG>, which will not be repeated here.

Similarly, for other examples of the embodiments illustrated in <FIG> and <FIG>, there may be no second substrate, so that the second lens or the like may be directly laminated and formed on the first substrate.

<FIG> is a schematic diagram of yet another display panel provided by an embodiment of the present disclosure, <FIG> is a schematic diagram of still another display panel provided by an embodiment of the present disclosure, and <FIG> is a schematic plan view of still another display panel provided by an embodiment of the present disclosure.

In general, light emitted by each pixel in the pixel island array <NUM> propagates in the range of -<NUM> degrees to +<NUM> degrees, that is, the divergence angle of the light emitted by the pixel islands is large, and the light emitted by adjacent pixel islands may affect each other. For example, part of the light emitted by a pixel island may enter an area of a first microlens which does not correspond to the pixel island, and this part of the light may become interference light, thereby affecting the imaging effect of the first microlens which does not correspond to the pixel island, and finally affecting the visual effect of the augmented reality display. The following description will be illustrated by taking the display panel illustrated in <FIG> and <FIG> as an example.

As illustrated in <FIG>, the first microlens 20a converges the light emitted from the image displayed by the first pixel island 21a so as to obtain first sub-imaging light which is capable of being imaged as the first sub-virtual image 30a, the first microlens 20b converges the light emitted from the image displayed by the second pixel island 21b so as to obtain second sub-imaging light which is capable of being imaged as the second sub-virtual image 30b, the first microlens 20c converges the light emitted from the image displayed by the third pixel island 21c so as to obtain third sub-imaging light which is capable of being imaged as the third sub-virtual image 30c, and the first microlens 20d converges the light emitted from the image displayed by the fourth pixel island 21d so as to obtain fourth sub-imaging light which is capable of being imaged as the fourth sub-virtual image 30d. Because the divergence angle of the light emitted from a pixel island is too large, for example, part of the light <NUM> emitted from the second pixel island 21b may be transmitted to the first microlens 20a, and the part of the light <NUM> and the first sub-imaging light converged through the first microlens 20a form the first sub-virtual image 30a, whereby the part of the light <NUM> may affect the first sub-virtual image 30a. Another part of light <NUM> emitted from the second pixel island 21b is transmitted to the first microlens 20c, and this part of light <NUM> and the third sub-imaging light converged through the first microlens 20c form the third sub-virtual image 30c, whereby the part of light <NUM> may affect the third sub-virtual image 30c.

It should be noted that in the embodiments of the present disclosure, "light emitted from an image" means light emitted from each pixel in the pixel island by which the image is displayed.

Based on this, in some embodiments of the present disclosure, as illustrated in <FIG>, the display panel <NUM> further includes a shielding layer <NUM>. The shielding layer <NUM> is arranged between adjacent pixel islands in a direction parallel to the display panel, i.e., in a direction parallel to the first substrate <NUM>, and configured to prevent light emitted from adjacent pixel islands from interfering with each other. The shielding layer <NUM> may limit the divergence angle of the light emitted from the pixel island, thereby preventing the light emitted from adjacent pixel islands from interfering with each other, reducing stray light, and improving the imaging effect and visual effect.

For example, the shielding layer <NUM> includes a plurality of sub-shielding units, and each pixel island is partially surrounded by at least one sub-shielding unit in a direction parallel to the display panel, i.e., in a direction parallel to the first substrate <NUM>. As illustrated in <FIG>, each pixel island is surrounded by two sub-shielding units, so that, for example, the divergence angle of light <NUM> emitted from the second pixel island 21b is limited, and all of the light <NUM> are transmitted to the first microlens 20b which corresponds to the second pixel island 21b, and not to the first microlenses (e.g., the first microlens 20a and the first microlens 20c) which correspond to the pixel islands adjacent thereto (e.g., the first pixel island 21a and the third pixel island 21c).

For example, the shape, thickness, material or the like of the shielding layer <NUM> may be designed according to actual application requirements, as long as the shielding layer <NUM> may prevent light emitted from different pixel islands from interfering with each other, and the present disclosure is not limited to this. For example, each sub-shielding unit in the shielding layer <NUM> may be a rectangular column. The shielding layer <NUM> may be made of an opaque material such as a dark color (e.g., black) resin. Alternatively, the shielding layer <NUM> may be a polarizer, and a transmission axis of the shielding layer <NUM> is, for example, perpendicular to the first polarization direction, so that the first polarized light having the first polarization direction emitted from the pixel island array <NUM> cannot pass through the shielding layer <NUM>.

For example, as illustrated in <FIG>, in some examples, each pixel island is surrounded by four sub-shielding units. The shielding layer <NUM> may include a first sub-shielding unit 27a, a second sub-shielding unit 27b, a third sub-shielding unit 27c and a fourth sub-shielding unit 27d. The first sub-shielding unit 27a, the second sub-shielding unit 27b, the third sub-shielding unit 27c and the fourth sub-shielding unit 27d surround the first pixel island 21a, thereby ensuring that light emitted from the first pixel island 21a is not transmitted to the first microlenses which correspond to other pixel islands, in a first direction and a second direction. For example, the first direction and the second direction are perpendicular. As illustrated in <FIG>, in the first direction, two sub-shielding units are provided between two adjacent pixel islands, and in the second direction, two sub-shielding units are also provided between two adjacent pixel islands, and the present disclosure is not limited to this. For example, in other examples, only one sub-shielding unit may be provided between two adjacent pixel islands in the first direction, and only one sub-shielding unit may be provided between two adjacent pixel islands in the second direction.

It should be noted that the display panel <NUM> illustrated in <FIG> may also include a shielding layer so as to prevent light emitted from different pixel islands from interfering with each other.

In the above drawings illustrating the embodiments of the present disclosure, although only one second lens is illustrated on the user viewing side of the display panel, a plurality of second lenses may be provided on the user viewing side so as to implement the imaging function, and the embodiments of the present disclosure are not limited to this.

An embodiment of the present disclosure also provides a display device, and <FIG> is a schematic block diagram of a display device provided by an embodiment of the present disclosure. As illustrated in <FIG>, a display device <NUM> includes a display panel <NUM>, which may be the display panel according to any one of the embodiments described above.

For example, the display device <NUM> may be an augmented reality display device, and the augmented reality display device may include a head-mounted display such as AR glasses or the like.

It should be understood that there are other components of the display device <NUM> (e.g., control device, image data encoding/decoding device, processor, etc.) by those of ordinary skill in the art, which are not repeated here, and should not be taken as limitations to the present disclosure.

An embodiment of the present disclosure also provides a display method, which may be applied to the display panel according to any of the above embodiments. <FIG> is a flowchart of a display method provided by an embodiment of the present disclosure, <FIG> is a schematic diagram of imaging of step S20 in the display method illustrated in <FIG>, and <FIG> is a schematic diagram of imaging of step S30 in the display method illustrated in <FIG>.

For example, as illustrated in <FIG>, the display method may include the following steps:.

For example, in step S10, each pixel island in the pixel island array may be controlled to display sub-original images according to actual requirements, and the plurality of sub-original images form a complete original image.

For example, the first virtual image is a virtual image in which the plurality of sub-original images are stitched and enlarged.

For example, in step S20, the imaging light includes a plurality of sub-imaging light, a plurality of first microlenses in the first microlens array <NUM> respectively converge the light emitted from the plurality of sub-original images so as to obtain the plurality of sub-imaging light, the plurality of sub-imaging light may be respectively imaged as a plurality of sub-virtual images, and the plurality of sub-virtual images are stitched to form a consecutive first virtual image. As illustrated in <FIG>, the first microlens array <NUM> includes a first microlens 20a, a first microlens 20b, a first microlens 20c and a first microlens 20d, and the pixel island array <NUM> includes a first pixel island 21a, a second pixel island 21b, a third pixel island 21c and a fourth pixel island 21d. The first pixel island 21a displays a first sub-original image, the first microlens 20a converges light emitted from the first sub-original image so as to obtain first sub-imaging light, the first sub-imaging light is capable of forming a first sub-virtual image 30a, and the first sub-virtual image 30a is an enlarged virtual image of the first sub-original image. The second pixel island 21b displays a second sub-original image, the first microlens 20b converges light emitted from the second sub-original image so as to obtain second sub-imaging light, the second sub-imaging light is capable of forming a second sub-virtual image 30b, and the second sub-virtual image 30b is an enlarged virtual image of the second sub-original image. The third pixel island 21c displays a third sub-original image, the first microlens 20c converges light emitted from the third sub-original image so as to obtain third sub-imaging light, the third sub-imaging light is capable of forming a third sub-virtual image 30c, and the third sub-virtual image 30c is an enlarged virtual image of the third sub-original image. The fourth pixel island 21d displays a fourth sub-original image, the first microlens 20d converges light emitted from the fourth sub-original image so as to obtain fourth sub-imaging light, the fourth sub-imaging light is capable of forming a fourth sub-virtual image 30d, and the fourth sub-virtual image 30d is an enlarged virtual image of the fourth sub-original image. The first sub-virtual image 30a, the second sub-virtual image 30b, the third sub-virtual image 30c and the fourth sub-virtual image 30d are stitched for obtaining a consecutive first virtual image <NUM>, and the first virtual image <NUM> is an enlarged virtual image of the complete original image displayed by the pixel island array <NUM>.

For example, as illustrated in <FIG>, the display panel further includes a compensation layer <NUM> for balancing the deflection effect of the first microlens array <NUM> on ambient light.

For example, in step S30, the second lens converges the imaging light so as to obtain the second virtual image, and the second virtual image is an enlarged virtual image of the first virtual image. As illustrated in <FIG>, the second lens <NUM> may be a liquid crystal flat lens. The first polarized light emitted from the pixel island array <NUM> is reflected and converged by the first microlens array <NUM>, the reflected first polarized light is incident into the second lens <NUM>, and when the reflected first polarized light passes through the second lens <NUM>, its optical path is deflected, so that the light exited through the second lens <NUM> may be transmitted to the human eye <NUM>, and the human eye <NUM> finally sees the complete second virtual image <NUM>. For example, as illustrated in <FIG>, the display panel further includes a first polarizer <NUM>. The first polarizer <NUM> is used for filtering ambient light incident from the back side which is opposite to the user viewing side of the display panel so as to obtain second polarized light having a second polarization direction, and the second lens <NUM> has no modulation effect on the second polarized light, so that ambient light transmitted through the entire display panel is not modulated by the second lens <NUM>, thereby ensuring the display effect of augmented reality display.

For the present disclosure, the following statements should be noted:.

Claim 1:
A display panel (<NUM>, <NUM>, <NUM>), comprising: a first substrate (<NUM>, <NUM>), a first microlens array (<NUM>, <NUM>), and a pixel island array (<NUM>, <NUM>) on the first substrate (<NUM>, <NUM>), and a second substrate (<NUM>, <NUM>), and a second lens (<NUM>, <NUM>) on the second substrate (<NUM>, <NUM>), and
wherein the first substrate (<NUM>, <NUM>) is a transparent substrate;
the pixel island array (<NUM>, <NUM>) is configured to display a plurality of sub-original images (32a, 32b, 32c, 32d);
the first microlens array (<NUM>, <NUM>) is configured to converge light emitted from the plurality of sub-original images (32a, 32b, 32c, 32d) so as to obtain imaging light (<NUM>, <NUM>), and a first virtual image (<NUM>) is formed by the imaging light (<NUM>, <NUM>) on a side of the first microlens array (<NUM>, <NUM>) which is away from a user viewing side (A) of the display panel (<NUM>, <NUM>, <NUM>); and
the second lens (<NUM>, <NUM>) is on the user viewing side (A) of the display panel (<NUM>, <NUM>, <NUM>) relative to the first microlens array (<NUM>, <NUM>), and the second lens (<NUM>, <NUM>) is configured to converge the imaging light (<NUM>, <NUM>) so as to obtain a second virtual image (<NUM>), wherein the first virtual image (<NUM>) is a virtual image in which the plurality of sub-original images (32a, 32b, 32c, 32d) are stitched and enlarged, and the second virtual image (<NUM>) is an enlarged virtual image of the first virtual image (<NUM>); wherein the display panel (<NUM>, <NUM>, <NUM>) further comprises
a third microlens array (<NUM>), wherein the third microlens array (<NUM>) is on a first side of the first substrate (<NUM>, <NUM>), the first side of the first substrate (<NUM>, <NUM>) faces a back side (B) which is opposite to a user viewing side (A) of the display panel (<NUM>, <NUM>, <NUM>), and the third microlens array (<NUM>) is configured to compensate for deflection effects of the first microlens array (<NUM>, <NUM>) on ambient light.