Micro-lens structure, backlight module and display panel

Abstract

The present invention relates to the technical field of display, and provides a micro-lens structure, a backlight module and a display panel, which can solve the problem that the picture displayed by an entire three-dimensional display device is prone to distortion due to poor attachment accuracy caused by the deformation problem of existing micro-lens structures. The micro-lens structure of the present invention comprises a first lens main body and a plurality of first micro-lenses located on one side of the first lens main body; the first lens main body and the first micro-lenses are of an integrally formed structure, and the first lens main body and the first micro-lenses are all made of an inorganic transparent material.

Description

Microlens structure, backlight module and display panel Technical Field

[0001] The present disclosure belongs to the field of display technology, and particularly relates to a microlens structure, a backlight module, and a display panel. Background Art

[0002] In three-dimensional display technologies such as autostereoscopy (3D), augmented reality (AR), and virtual reality (VR), a microlens structure is required to realize the display of three-dimensional images or virtual images.

[0003] Currently, solid-state lenses are primarily used in 3D displays. These lenses are typically made from organic materials such as resins through thermal reflow or printing techniques. Resin materials can deform, resulting in poor attachment accuracy and prone to distortion of the image displayed by the 3D display. This problem is particularly prominent in large-scale 3D displays. Summary of the Invention

[0004] The present disclosure aims to solve at least one of the technical problems existing in the prior art, and provides a microlens structure, a backlight module and a display panel.

[0005] In a first aspect, an embodiment of the present disclosure provides a microlens structure, wherein the microlens structure includes: a first lens body and a plurality of first microlenses located on one side of the first lens body;

[0006] The first lens body and the first microlens are an integrally formed structure, and the materials of the first lens body and the first microlens are both inorganic transparent materials.

[0007] In some specific examples, the first microlens is a convex lens.

[0008] In some specific examples, the microlens structure further includes: a planarization layer covering the first microlens;

[0009] The refractive index of the planarization layer is smaller than the refractive index of the first microlens.

[0010] In some specific examples, the first microlens is a concave lens.

[0011] In some specific examples, the microlens structure further includes: a planarization layer covering the first microlens;

[0012] The refractive index of the planarization layer is greater than the refractive index of the first microlens.

[0013] In some specific examples, the width of the first microlens is 150 microns to 300 microns; and the arch height of the first microlens is 40 microns to 60 microns.

[0014] In some specific examples, the microlens structure further includes: a light shielding layer disposed between adjacent first microlenses;

[0015] The light shielding layer is located on a side of the first lens body close to the first microlens, or the light shielding layer is located on a side of the first lens body away from the first microlens.

[0016] In some specific examples, the first microlens is in the shape of a cylindrical lens or a spherical lens.

[0017] In some specific examples, the microlens structure further includes: a second lens body and a plurality of second microlenses;

[0018] The second lens body is located on a side of the first lens body away from the first microlens;

[0019] The second microlens is located on a side of the second lens body facing away from the first lens body.

[0020] In some specific examples, the first microlens is a concave lens, the second microlens is a convex lens, and the width of the second microlens is greater than the width of the first microlens.

[0021] In some specific examples, the first lens body, the first microlens, the second lens body and the second microlens are an integrally formed structure.

[0022] In some specific examples, the microlens structure further includes: a second lens body and a plurality of second microlenses;

[0023] The second microlens is located on a side of the first microlens away from the first lens body;

[0024] The second lens body is located on a side of the second microlens facing away from the first microlens.

[0025] In some specific examples, both the first microlens and the second microlens are convex lenses, and the first microlens and the second microlens have the same width.

[0026] In some specific examples, the microlens structure further includes: a planarization layer;

[0027] The planarization layer is located between the first microlens and the second microlens, and a refractive index of the planarization layer is smaller than a refractive index of the first microlens and the second microlens.

[0028] In some specific examples, both the first microlens and the second microlens are concave lenses, and the first microlens and the second microlens have the same width.

[0029] In some specific examples, the microlens structure further includes: a planarization layer;

[0030] The planarization layer is located between the first microlens and the second microlens, and a refractive index of the planarization layer is greater than a refractive index of the first microlens and the second microlens.

[0031] In a second aspect, an embodiment of the present disclosure provides a backlight module, wherein the backlight module includes the microlens structure provided above.

[0032] In some specific examples, the backlight module further includes: a plurality of first light emitting devices;

[0033] The first light emitting device is located on a side of the first lens body away from the first microlens, and the first light emitting device is arranged at a focal position of the first microlens.

[0034] In some specific examples, the backlight module further includes: a sensor device located between adjacent first light-emitting devices;

[0035] The sensor device is located on a side of the first lens body away from the first microlens, and the sensor device is arranged at a focal position of the first microlens.

[0036] In a third aspect, an embodiment of the present disclosure provides a display panel, wherein the display panel includes the microlens structure provided above.

[0037] In some specific examples, the display panel includes: a first substrate and a second substrate disposed opposite to each other, and a liquid crystal layer located between the first substrate and the second substrate;

[0038] The first lens body is located on a side of the second substrate away from the liquid crystal layer.

[0039] In some specific examples, the display panel includes: a first substrate and a second substrate disposed opposite to each other, and a liquid crystal layer located between the first substrate and the second substrate;

[0040] The first lens body is located between the liquid crystal layer and the second substrate.

[0041] In some specific examples, the second substrate serves as the first lens body.

[0042] In some specific examples, a plurality of third micro lenses are formed on a side of the first substrate facing away from the liquid crystal layer.

[0043] In some specific examples, the display panel has a display area and a non-display area surrounding the display area; the display panel further includes: a plurality of sensor devices disposed in the non-display area;

[0044] The sensor device is located on a side of the first lens body away from the first microlens, and the sensor device is arranged at a focal position of the first microlens.

[0045] In some specific examples, the display panel further includes: a plurality of second light emitting devices;

[0046] The second light emitting device is located on a side of the first lens body away from the first microlens, and the second light emitting device is arranged at a focal position of the first microlens.

[0047] In some specific examples, the display panel further includes: a sensor device located between adjacent second light-emitting devices;

[0048] The sensor device is located on a side of the first lens body away from the first microlens, and the sensor device is arranged at a focal position of the first microlens. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] FIG2 is a schematic structural diagram of a second microlens structure provided by an embodiment of the present disclosure.

[0050] FIG3 is a schematic structural diagram of a third microlens structure provided by an embodiment of the present disclosure.

[0051] FIG4 is a schematic structural diagram of a fourth microlens structure provided by an embodiment of the present disclosure.

[0052] FIG5 is a schematic structural diagram of a fifth microlens structure provided by an embodiment of the present disclosure.

[0053] FIG6 is a schematic structural diagram of a sixth microlens structure provided by an embodiment of the present disclosure.

[0054] FIG7 is a schematic structural diagram of a seventh microlens structure provided by an embodiment of the present disclosure.

[0055] FIG8 is a schematic structural diagram of an eighth microlens structure provided by an embodiment of the present disclosure.

[0056] FIG9 is a schematic structural diagram of a ninth microlens structure provided by an embodiment of the present disclosure.

[0057] FIG10 is a schematic structural diagram of a tenth microlens structure provided by an embodiment of the present disclosure.

[0058] FIG11 is a schematic structural diagram of an eleventh microlens structure provided by an embodiment of the present disclosure.

[0059] FIG12 is a schematic structural diagram of a backlight module provided in an embodiment of the present disclosure.

[0060] FIG13 is a schematic structural diagram of a first display panel provided in an embodiment of the present disclosure.

[0061] FIG14 is a schematic structural diagram of a second display panel provided in an embodiment of the present disclosure.

[0062] FIG15 is a schematic structural diagram of a third display panel provided in an embodiment of the present disclosure.

[0063] FIG16 is a schematic structural diagram of a fourth display panel provided in an embodiment of the present disclosure.

[0064] FIG17 is a schematic structural diagram of a fifth display panel provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0065] In order to enable those skilled in the art to better understand the technical solutions of the present disclosure, the present disclosure is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0066] Unless otherwise defined, the technical or scientific terms used in this disclosure should have the usual meanings understood by people with ordinary skills in the field to which this disclosure belongs. The words "first", "second" and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one", "an" or "the" do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0067] The three-dimensional display device can attach a layer of microlens structure to the light-emitting side of the original two-dimensional display panel. The microlens structure can adjust the light of the two-dimensional display screen displayed by the two-dimensional display panel, so that the distance at which the light enters the human eye changes, thereby achieving a three-dimensional display effect.

[0068] Currently, solid-state lenses are primarily used in 3D displays. These lenses are typically made from organic materials such as resins through thermal reflow or printing techniques. Resin materials can deform, resulting in poor attachment accuracy and prone to distortion of the image displayed by the 3D display. This problem is particularly prominent in large-scale 3D displays.

[0069] In order to solve at least one of the above technical problems, the embodiments of the present disclosure provide a microlens structure, a backlight module and a display panel. The microlens structure, backlight module and display panel provided by the embodiments of the present disclosure will be further described in detail below in combination with the accompanying drawings and specific implementation methods.

[0070] In a first aspect, an embodiment of the present disclosure provides a microlens structure. FIG1 is a schematic structural diagram of the first microlens structure provided by an embodiment of the present disclosure. As shown in FIG1 , the microlens structure includes: a first lens body 101 and a plurality of first microlenses 102 located on one side of the first lens body 101; the first lens body 101 and the first microlenses 102 are integrally formed structures, and the materials of the first lens body 101 and the first microlenses 102 are both inorganic transparent materials.

[0071] The first lens body 101 can support the plurality of micro lenses 102 thereon. Meanwhile, the side of the first lens body 101 facing away from the micro lenses 102 is a flat surface, so as to facilitate bonding with other components in a three-dimensional display device (eg, a two-dimensional display panel).

[0072] The number of first microlenses 102 can be multiple, which can converge light and change the original optical path of the light to achieve a three-dimensional display effect. The multiple first microlenses 102 can be arranged in an array to uniformly adjust the optical path of the incident light to improve the display effect of the three-dimensional image.

[0073] The first lens body 101 and the first microlens 102 can be made of the same material, for example, both are made of inorganic transparent materials, such as glass, sapphire, etc. For cost considerations, they can be made of glass.

[0074] During the manufacturing process, an etching process can be used to form a pattern of multiple microlenses 102 on one side of the first lens body 101. Based on the specific morphology of the microlenses, appropriate areas can be selected and glass removed to form the multiple first microlenses 102. For example, if the microlenses 102 are convex lenses, the glass at the edges of the pattern of the microlenses 102 can be removed to form a convex lens morphology. If the microlenses 102 are concave lenses, the glass at the edges of the pattern of the microlenses 102 can be removed to form a concave lens morphology. The microlenses 102 of the microlens structure shown in FIG1 are convex lenses, and the concave lenses will be described in further detail later.

[0075] In the microlens structure provided by the disclosed embodiments, the first lens body 101 and the first microlens 102 are integrally formed, which can prevent gaps between the two from being formed and affecting the display effect, while also reducing process steps and saving production costs. Furthermore, the microlens structure can be directly formed using an etching process, eliminating the need for thermal reflow techniques that affect the microlens structure's morphology, thereby preventing deformation of the microlens structure and thereby improving the display effect. Furthermore, the materials of the first lens body 101 and the first microlens 102 are both inorganic transparent materials, which have excellent stability and are not easily deformed by external influences during the preparation process and subsequent bonding and display processes, further improving the display effect.

[0076] FIG2 is a schematic structural diagram of a second microlens structure provided by an embodiment of the present disclosure. As shown in FIG2 , the microlens structure further includes: a planarization layer 103 covering the first microlens 102 ; the refractive index of the planarization layer 103 is smaller than the refractive index of the first microlens 102 .

[0077] The planarization layer 103 can be made of an organic insulating material, such as polyimide, epoxy resin, acrylic, polyester, photoresist, polyacrylate, polyamide, silicone, or other resin materials. Another example of an organic insulating material is an elastic material, such as urethane or thermoplastic polyurethane (TPU). The planarization layer 103 can flatten the surfaces of the plurality of first microlenses 102 to facilitate smooth bonding with other structures. When the first microlenses 102 are convex lenses, the refractive index of the planarization layer 103 is lower than that of the first microlenses 102, thereby preventing the planarization layer 103 from affecting the light passing through the first microlenses 102.

[0078] FIG3 is a schematic diagram of the structure of a third microlens structure provided by an embodiment of the present disclosure. As shown in FIG3 , this microlens structure differs from the microlens structure shown in FIG1 in that the first microlens 102 in the microlens structure shown in FIG3 is a concave lens. This concave lens can diverge light, changing its original optical path to achieve a three-dimensional display effect. The materials and preparation process are the same as those for the microlens structure shown in FIG1 and will not be described in detail here.

[0079] FIG4 is a schematic diagram of a fourth microlens structure provided by an embodiment of the present disclosure. As shown in FIG4 , the microlens further includes a planarization layer 103 covering the first microlens; the refractive index of the planarization layer 103 is lower than that of the first microlens 102. When the first microlens 102 is a concave lens, the refractive index of the planarization layer 103 is higher than that of the first microlens 102, thereby preventing the planarization layer 103 from affecting light passing through the first microlens 102.

[0080] As shown in FIG1 to FIG4 , the width of the first microlens 102 is optionally 150 μm to 300 μm, and the dome height of the first microlens 102 is 40 μm to 60 μm. For example, the first microlens 102 has a width of 200 μm and a dome height of 50 μm, which can ensure that the first microlens 102 has a good optical path adjustment effect while having a small thickness, thereby facilitating a lightweight and thin 3D display device.

[0081] FIG5 is a schematic structural diagram of a fifth microlens structure provided in an embodiment of the present disclosure. As shown in FIG5 , the microlens structure further includes: a light shielding layer 104 disposed between adjacent first microlenses 102 ; the light shielding layer 104 is located on a side of the first lens body 101 close to the first microlens 102 .

[0082] The light shielding layer 104 can be made of an organic material such as a black matrix and can absorb light that impinges upon it. Specifically, the light shielding layer 104 can be located on the side of the first lens body 101 facing away from the first microlenses 102. Disposing the light shielding layer 104 between adjacent first microlenses 102 can prevent light rays passing through adjacent first microlenses 102 from interfering with each other, thereby preventing crosstalk and improving the three-dimensional display effect.

[0083] FIG6 is a schematic structural diagram of a sixth microlens structure provided in an embodiment of the present disclosure. As shown in FIG6 , this microlens structure differs from the microlens structure shown in FIG5 in that, in the microlens structure shown in FIG6 , a light-shielding layer 104 is located on the side of the first lens body 101 facing away from the first microlens 102 . This light-shielding layer 104 can absorb light incident on adjacent first microlenses 102 , preventing light incident on adjacent first microlenses 102 from interfering with each other, thereby avoiding crosstalk and improving the three-dimensional display effect.

[0084] In some embodiments, the first microlens 102 is shaped like a cylindrical lens or a spherical lens.

[0085] FIG7 is a schematic diagram of the structure of a seventh microlens structure provided in an embodiment of the present disclosure, and FIG8 is a schematic diagram of the structure of an eighth microlens structure provided in an embodiment of the present disclosure. The microlens structures shown in FIG7 and FIG8 are similar to the microlens structures shown in FIG5 and FIG6 , respectively. In the microlens structures shown in FIG5 and FIG6 , the first microlens 102 is a convex lens, while the microlens structures shown in FIG7 and FIG8 are concave lenses. Their implementation principles are similar and will be described in detail herein.

[0086] FIG9 is a schematic structural diagram of a ninth microlens structure provided in an embodiment of the present disclosure. As shown in FIG9 , the microlens structure further includes: a second lens body 201 and a plurality of second microlenses 202 ; the second lens body 201 is located on a side of the first lens body 101 away from the first microlenses 102 ; and the second microlenses 202 are located on a side of the second lens body 201 away from the first lens body 101 .

[0087] The microlens structure shown in FIG9 can be viewed as a combination of the two microlens structures shown in FIG1 and FIG3 , wherein the first microlens 102 is a concave lens, the second microlens 202 is a convex lens, and the width of the second microlens 202 is greater than the width of the first microlens 101. The second microlens 202 can cover multiple first microlenses 102. This can take into account the optical path adjustment effects of both the convex and concave lenses, while also increasing the arch height of the entire microlens structure, thereby improving the optical path adjustment effect and, in turn, the display effect.

[0088] In some embodiments, the first lens body 101 , the first microlens 102 , the second lens body 201 , and the second microlens 202 are an integrally formed structure.

[0089] During the manufacturing process, etching can be performed on both sides of the same glass to form the first microlens 102 and the second microlens 202. At the same time, the first lens body 101 and the second lens body 201 can be combined into one, which can reduce the number of process steps and save manufacturing costs. At the same time, it can also avoid the influence of lamination on the propagation of light.

[0090] FIG10 is a schematic structural diagram of a tenth microlens structure provided in an embodiment of the present disclosure. As shown in FIG10 , the microlens structure further includes: a second lens body 201 and a plurality of second microlenses 202; the second microlenses 202 are located on a side of the first microlens 102 facing away from the first lens body 101; and the second lens body 201 is located on a side of the second microlens 202 facing away from the first microlens 102.

[0091] The microlens structure shown in FIG10 can be viewed as a combination of two sets of microlens structures shown in FIG1 , wherein the first microlens 102 and the second microlens 202 are both convex lenses, and the first microlens 102 and the second microlens 202 have the same width. This can increase the arch height of the entire microlens structure, thereby improving the optical path adjustment effect and further improving the display effect.

[0092] As shown in FIG. 10 , the microlens structure further includes a planarization layer 103 . The planarization layer 103 is located between the first microlens 102 and the second microlens 202 , and the refractive index of the planarization layer 103 is smaller than that of the first microlens 102 and the second microlens 202 .

[0093] When the first microlens 102 and the second microlens 202 are both convex lenses, the refractive index of the planarization layer 103 is smaller than that of the first microlens 102 and the second microlens 202 , thereby preventing the planarization layer 103 from affecting the light passing through the first microlens 102 and the second microlens 202 .

[0094] FIG11 is a schematic structural diagram of an eleventh microlens structure provided by an embodiment of the present disclosure. As shown in FIG11 , the first microlens 102 and the second microlens 202 are both concave lenses, and the first microlens 102 and the second microlens 202 have the same width.

[0095] The microlens structure shown in FIG11 can be viewed as a combination of two sets of microlens structures shown in FIG3 , wherein the first microlens 102 and the second microlens 202 are both concave lenses, and the first microlens 102 and the second microlens 202 have the same width. This can increase the arch height of the entire microlens structure, thereby improving the optical path adjustment effect and further improving the display effect.

[0096] As shown in FIG. 11 , the microlens structure further includes a planarization layer 103 . The planarization layer 103 is located between the first microlens 102 and the second microlens 202 , and the refractive index of the planarization layer 103 is greater than that of the first microlens 102 and the second microlens 202 .

[0097] When the first microlens 102 and the second microlens 202 are both concave lenses, the refractive index of the planarization layer 103 is greater than the refractive index of the first microlens 102 and the second microlens 202 , thereby preventing the planarization layer 103 from affecting the light passing through the first microlens 102 and the second microlens 202 .

[0098] In a second aspect, embodiments of the present disclosure provide a backlight module comprising a microlens structure as provided in any of the aforementioned embodiments. Figure 12 is a schematic structural diagram of a backlight module provided in an embodiment of the present disclosure. As shown in Figure 12 , the backlight module further comprises: a plurality of first light-emitting devices 301 ; the first light-emitting devices 301 are located on a side of the first lens body 101 facing away from the first microlens 102 , and the first light-emitting devices 301 are disposed at the focal point of the first microlens 102 .

[0099] The first light-emitting device 301 can be a mini light-emitting diode (mini LED), which can provide a light source for the liquid crystal display panel. The first microlens 102 is a convex lens, wherein the first light-emitting device 301 is located on the side of the first lens body 101 facing away from the first microlens 102, and the first light-emitting device 301 is set at the focal position of the first microlens 102. The first light-emitting device 301 can be a point light source. The light emitted by the first light-emitting device 301 can be converged by the first microlens 102 to form a surface light source before irradiating the liquid crystal display panel, thereby improving the brightness of the backlight and saving energy.

[0100] In some embodiments, as shown in FIG12 , the backlight module further includes: a sensor device 302 located between adjacent first light-emitting devices 301 ; the sensor device 302 is located on a side of the first lens body 101 away from the first microlens 102 , and the sensor device 302 is set at a focal position of the first microlens 102 .

[0101] The sensor device 302 can capture the user's image and sense gestures, enabling virtual reality and augmented reality scenarios. The sensor device 302 can be positioned between adjacent first light-emitting devices 301 and on the side of the first lens body 101 facing away from the first microlens 102. The sensor device 302 is positioned at the focal point of the first microlens 102. The first microlens 102 converges ambient light and transmits it to the sensor device 302, thereby enhancing the sensor device's perception and improving user experience.

[0102] In a third aspect, embodiments of the present disclosure provide a display panel comprising a microlens structure as provided in any of the aforementioned embodiments. Figure 13 is a schematic structural diagram of the first display panel provided in embodiments of the present disclosure. As shown in Figure 13 , the display panel comprises: a first substrate 401 and a second substrate 402 disposed opposite each other, and a liquid crystal layer 403 located between the first substrate 401 and the second substrate 402; and a first lens body 101 located on the side of the second substrate 402 facing away from the liquid crystal layer 403.

[0103] The display panel shown in Figure 13 is a liquid crystal display panel. The liquid crystal layer 403 can be deflected by the electric field between the first substrate 401 and the second substrate 402 to transmit light emitted by the backlight source to achieve a display function. The microlens structure can be arranged on the second substrate 402. Specifically, the first lens body 102 is located on the side of the second substrate 402 facing away from the liquid crystal layer 403, and the first microlens 102 is located on the first lens body 101. The first lens body 101 and the second substrate 402 can be bonded together by an adhesive layer such as optical glue. The liquid crystal display panel is a two-dimensional display panel. The first microlens 102 can adjust the optical path of light passing through the liquid crystal display panel so that the light enters the user's two eyes at different distances, thereby achieving a three-dimensional display effect.

[0104] FIG14 is a schematic structural diagram of a second display panel provided in an embodiment of the present disclosure. As shown in FIG14 , the display panel includes: a first substrate 401 and a second substrate 402 arranged opposite to each other, and a liquid crystal layer 403 located between the first substrate 401 and the second substrate 402; and a first lens body 101 is located between the liquid crystal layer 403 and the second substrate 402.

[0105] The display panel shown in FIG14 is a liquid crystal display panel. It differs from the display panel shown in FIG13 in that the microlens structure in the display panel shown in FIG14 can be disposed within the liquid crystal display panel. Specifically, the first lens body 101 is located between the liquid crystal layer 403 and the second substrate 402, and the first microlens 102 is located on the first lens body 101. This reduces the space occupied by the microlens structure and, compared to the display panel shown in FIG13, can reduce the thickness of the display panel, thereby facilitating a thinner and lighter display panel.

[0106] FIG15 is a schematic structural diagram of a third display panel provided in an embodiment of the present disclosure, and FIG16 is a schematic structural diagram of a fourth display panel provided in an embodiment of the present disclosure. As shown in FIG15 and FIG16 , the second substrate 402 is used as the first lens body 101.

[0107] The second substrate 402 can also generally be made of glass. During the manufacturing process, the second substrate 402 serves as the first lens body 101, and the corresponding side of the second substrate 402 is etched to form the first microlenses 102. This reduces the number of process steps and manufacturing costs. Furthermore, the structure of the first lens body 101 can be reduced, thereby reducing the thickness of the display panel, facilitating a thinner and lighter display panel.

[0108] As shown in FIG. 13 and FIG. 14 , a plurality of third microlenses 105 are formed on the side of the first substrate 401 facing away from the liquid crystal layer 403 .

[0109] The third microlens 105 can be formed by etching the surface of the first substrate 401 and can be in the shape of a triangular lens, a cylindrical lens, a spherical lens, etc. It can focus the light emitted by the backlight source and illuminate the liquid crystal layer 403 to save energy.

[0110] In some embodiments, as shown in Figures 13 to 16, the display panel has a display area and a non-display area surrounding the display area; the display panel also includes: a plurality of sensor devices 302 arranged in the non-display area; the sensor devices 302 are located on a side of the first lens body 101 away from the first microlens 102, and the sensor devices 302 are arranged at the focal position of the first microlens 102.

[0111] The sensor device 302 can capture the user's image and sense gestures, enabling virtual reality and augmented reality scenarios. The sensor device 302 can be located on the side of the first lens body 101 facing away from the first microlens 102, and the sensor device 302 is positioned at the focal point of the first microlens 102. The first microlens 102 can converge ambient light and transmit it to the sensor device 302, thereby enhancing the sensor device 302's perception capabilities and improving user experience.

[0112] FIG17 is a schematic structural diagram of a fifth display panel provided in an embodiment of the present disclosure. As shown in FIG17 , the display panel further includes: a plurality of second light-emitting devices 501 ; the second light-emitting devices 501 are located on a side of the first lens body 101 away from the first microlens 102 , and the second light-emitting devices 501 are arranged at a focal position of the first microlens 102 .

[0113] The display panel shown in Figure 17 can be a self-luminous display panel, such as an organic light-emitting diode (OLED) display panel. The second light-emitting device 501 is an OLED. The second light-emitting device 501 is located on the side of the first lens body 101 facing away from the first microlens 102. The second light-emitting device 501 is set at the focal position of the first microlens 102. The light emitted by the OLED is converged by the first microlens 502 before being emitted. The OLED display panel is a two-dimensional display panel. The first microlens 102 can adjust the optical path of the light passing through the OLED display panel so that the light enters the user's two eyes at different distances, thereby achieving a three-dimensional display effect.

[0114] In some embodiments, as shown in FIG17 , the display panel further includes: a sensor device 302 located between adjacent second light-emitting devices 501 ; the sensor device 302 is located on a side of the first lens body 101 away from the first microlens 102 , and the sensor device 302 is disposed at a focal position of the first microlens 102 .

[0115] The sensor device 302 can capture the user's image and sense gestures, enabling virtual reality and augmented reality scenarios. The sensor device 302 can be located on the side of the first lens body 101 facing away from the first microlens 102, and the sensor device 302 is positioned at the focal point of the first microlens 102. The first microlens 102 can converge ambient light and transmit it to the sensor device 302, thereby enhancing the sensor device 302's perception capabilities and improving user experience.

[0116] In a fourth aspect, an embodiment of the present disclosure provides a display device, which includes a microlens structure, a backlight module or a display panel as provided in any of the above embodiments. The display device can specifically be a naked-eye three-dimensional display device, a virtual reality display device, or an augmented reality display device. Its implementation principle is the same as the implementation principle of the above-mentioned microlens structure, backlight module and display panel, and will not be repeated here.

[0117] It is understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present disclosure, and the present disclosure is not limited thereto. Those skilled in the art may make various modifications and improvements without departing from the spirit and substance of the present disclosure, and such modifications and improvements are also considered to be within the scope of protection of the present disclosure.

Claims

1. A microlens structure, wherein, The microlens structure includes: a first lens body and a plurality of first microlenses located on one side of the first lens body; The first lens body and the first microlenses are of an integrally formed structure, and the materials of the first lens body and the first microlenses are both inorganic transparent materials.

2. The microlens structure according to claim 1, wherein, The first microlenses are convex lenses.

3. The microlens structure according to claim 1, wherein, The microlens structure further includes: a planarization layer covering the first microlenses; The refractive index of the planarization layer is less than that of the first microlenses.

4. The microlens structure according to claim 1, wherein, The first microlenses are concave lenses.

5. The microlens structure according to claim 4, wherein, The microlens structure further includes: a planarization layer covering the first microlenses; The refractive index of the planarization layer is greater than that of the first microlenses.

6. The microlens structure according to claim 1, wherein, The width of the first microlenses is 150 microns to 300 microns; the arch height of the first microlenses is 40 microns to 60 microns.

7. The microlens structure according to claim 1, wherein The microlens structure further includes: a light-shielding layer disposed between adjacent first microlenses; The light-shielding layer is located on the side of the first lens body close to the first microlenses, or the light-shielding layer is located on the side of the first lens body facing away from the first microlenses.

8. The microlens structure according to claim 1, wherein The shape of the first microlenses is columnar lenses or spherical lenses.

9. The microlens structure according to claim 1, wherein, The microlens structure further includes: a second lens body and a plurality of second microlenses; The second lens body is located on the side of the first lens body facing away from the first microlenses; The second microlenses are located on the side of the second lens body facing away from the first lens body.

10. The microlens structure according to claim 9, wherein, The first microlenses are concave lenses, the second microlenses are convex lenses, and the width of the second microlenses is greater than that of the first microlenses.

11. The microlens structure according to claim 9, wherein, The first lens body, the first microlenses, the second lens body, and the second microlenses are of an integrally formed structure.

12. The microlens structure according to claim 1, wherein, The microlens structure further includes: a second lens body and a plurality of second microlenses; The second microlenses are located on the side of the first microlenses facing away from the first lens body; The second lens body is located on the side of the second microlenses facing away from the first microlenses.

13. The microlens structure according to claim 12, wherein, The first microlenses and the second microlenses are both convex lenses, and the widths of the first microlenses and the second microlenses are the same.

14. The microlens structure according to claim 13, wherein, The microlens structure further includes: a planarization layer; The planarization layer is located between the first microlenses and the second microlenses, and the refractive index of the planarization layer is less than those of the first microlenses and the second microlenses.

15. The microlens structure according to claim 12, wherein, The first microlenses and the second microlenses are both concave lenses, and the widths of the first microlenses and the second microlenses are the same.

16. The microlens structure according to claim 15, wherein, The microlens structure further includes: a planarization layer; The planarization layer is located between the first microlenses and the second microlenses, and the refractive index of the planarization layer is greater than those of the first microlenses and the second microlenses.

17. A backlight module, wherein, The backlight module includes the microlens structure according to any one of claims 1 to 16.

18. The backlight module according to claim 17, wherein, The backlight module further includes: a plurality of first light-emitting devices; The first light-emitting devices are located on the side of the first lens body facing away from the first microlenses, and the first light-emitting devices are disposed at the focal positions of the first microlenses.

19. The backlight module according to claim 18, wherein, The backlight module further comprises: a sensor device located between adjacent first light emitting devices; The sensor device is located on a side of the first lens body away from the first microlens, and the sensor device is arranged at a focal position of the first microlens.

20. A display panel, wherein, The display panel comprises the microlens structure according to any one of claims 1 to 16.

21. The display panel according to claim 20, wherein, The display panel comprises: a first substrate and a second substrate arranged opposite to each other, and a liquid crystal layer located between the first substrate and the second substrate; The first lens body is located on a side of the second substrate away from the liquid crystal layer.

22. The display panel according to claim 20, wherein, The display panel comprises: a first substrate and a second substrate arranged opposite to each other, and a liquid crystal layer located between the first substrate and the second substrate; The first lens body is located between the liquid crystal layer and the second substrate.

23. The display panel according to claim 21 or 22, wherein, The second substrate serves as the first lens body.

24. The display panel according to claim 21 or 22, wherein, A plurality of third micro lenses are formed on a side of the first substrate away from the liquid crystal layer.

25. The display panel according to claim 20, wherein, The display panel comprises a display area and a non-display area surrounding the display area; the display panel further comprises: a plurality of sensor devices arranged in the non-display area; The sensor device is located on a side of the first lens body away from the first microlens, and the sensor device is arranged at a focal position of the first microlens.

26. The display panel according to claim 20, wherein, The display panel further includes: a plurality of second light emitting devices; The second light emitting device is located on a side of the first lens body away from the first microlens, and the second light emitting device is arranged at a focal position of the first microlens.

27. The display panel according to claim 26, wherein, The display panel further includes: a sensor device located between adjacent second light emitting devices; The sensor device is located on a side of the first lens body away from the first microlens, and the sensor device is arranged at a focal position of the first microlens.

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