Micro lens structure, backlight module and display panel

Abstract

The invention provides a micro-lens structure, a backlight module and a display panel, belongs to the technical field of display, and can solve the problems that an existing micro-lens structure is deformed, the attaching precision is poor, and a picture displayed by a whole three-dimensional display device is prone to distortion and deformation. The micro lens structure comprises a first lens body and a plurality of first micro lenses located on one side of the first lens body. The first lens body and the first micro lens are of an integrally-formed structure, and the first lens body and the first micro lens are both made of inorganic transparent materials.

Description

Technical Field

[0001] The present disclosure belongs to the technical field of display, 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, augmented reality (AR), and virtual reality (VR), a microlens structure is required to implement the display of three-dimensional or virtual images.

[0003] Currently, solid-state lenses are mainly used in three-dimensional display devices. Solid-state lenses are generally made of organic materials such as resin through thermal reflow technology or printing technology. The resin material has a deformation problem, resulting in poor attachment accuracy, making the images displayed by the entire three-dimensional display device prone to distortion. This problem is particularly prominent in large-sized three-dimensional display devices. Summary of the Invention

[0004] The present disclosure aims to at least solve 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, where 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 microlenses are of an integrally formed structure, and the materials of the first lens body and the first microlenses are both inorganic transparent materials.

[0007] In some specific examples, the first microlenses are convex lenses.

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

[0009] The refractive index of the planarization layer is less than the refractive index of the first microlenses.

[0010] In some specific examples, the first microlenses are concave lenses.

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

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

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

[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 the side of the first lens body close to the first microlens, or the light-shielding layer is located on the side of the first lens body facing away from the first microlens.

[0016] In some specific examples, the shape of the first microlens is 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 the side of the first lens body facing away from the first microlens;

[0019] The second microlenses are located on the 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 microlenses are located on the side of the first microlens facing away from the first lens body;

[0024] The second lens body is located on the 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 widths of the first microlens and the second microlens are the same.

[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 the refractive index of the planarization layer is less than the refractive indices 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 widths of the first microlens and the second microlens are the same.

[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 the refractive index of the planarization layer is greater than the refractive indices of the first microlens and the second microlens.

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

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

[0033] The first light-emitting devices are located on a side of the first lens body facing away from the first microlens, and the first light-emitting devices are disposed at the focal positions 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 facing away from the first microlens, and the sensor device is disposed at the focal positions of the first microlens.

[0036] In a third aspect, an embodiment of the present disclosure provides a display panel, where the display panel includes the microlens structure provided as 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 facing 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 microlenses 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 facing away from the first microlens, and the sensor device is disposed at the 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 facing away from the first microlens, and the second light-emitting device is disposed at the 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 facing away from the first microlens, and the sensor device is disposed at the focal position of the first microlens. Description of the Drawings

[0049] Figure 1 It is a schematic structural diagram of the first microlens structure provided by an embodiment of the present disclosure.

[0050] Figure 2 It is a schematic structural diagram of the second microlens structure provided by an embodiment of the present disclosure.

[0051] Figure 3 It is a schematic structural diagram of the third microlens structure provided by an embodiment of the present disclosure.

[0052] Figure 4 It is a schematic structural diagram of the fourth microlens structure provided by an embodiment of the present disclosure.

[0053] Figure 5 It is a schematic structural diagram of the fifth microlens structure provided by an embodiment of the present disclosure.

[0054] Figure 6 It is a schematic structural diagram of the sixth microlens structure provided by an embodiment of the present disclosure.

[0055] Figure 7 It is a schematic structural diagram of the seventh microlens structure provided by an embodiment of the present disclosure.

[0056] Figure 8Schematic diagram of the eighth micro-lens structure provided by the embodiments of the present disclosure.

[0057] Figure 9 Schematic diagram of the ninth micro-lens structure provided by the embodiments of the present disclosure.

[0058] Figure 10 Schematic diagram of the tenth micro-lens structure provided by the embodiments of the present disclosure.

[0059] Figure 11 Schematic diagram of the eleventh micro-lens structure provided by the embodiments of the present disclosure.

[0060] Figure 12 Schematic diagram of a backlight module provided by the embodiments of the present disclosure.

[0061] Figure 13 Schematic diagram of the first display panel provided by the embodiments of the present disclosure.

[0062] Figure 14 Schematic diagram of the second display panel provided by the embodiments of the present disclosure.

[0063] Figure 15 Schematic diagram of the third display panel provided by the embodiments of the present disclosure.

[0064] Figure 16 Schematic diagram of the fourth display panel provided by the embodiments of the present disclosure.

[0065] Figure 17 Schematic diagram of the fifth display panel provided by the embodiments of the present disclosure. Detailed implementation manners

[0066] To enable those skilled in the art to better understand the technical solutions of the present disclosure, the present disclosure will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0067] Unless otherwise defined, technical terms or scientific terms used in this disclosure shall have the ordinary meanings as understood by those of ordinary skill in the art to which this disclosure pertains. The terms "first", "second" and similar words used in this disclosure do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "a", "an" or "the" do not denote a quantity limitation, but mean that there is at least one. Words such as "comprising" or "including" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Words such as "upper", "lower", "left" and "right" are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0068] A three-dimensional display device may attach a layer of microlens structure to the light-emitting side of the original two-dimensional display panel. The microlens structure may adjust the light of the two-dimensional display image displayed on the two-dimensional display panel, so that the distance of the light entering the human eye changes, thereby achieving a three-dimensional display effect.

[0069] Currently, solid-state lenses are mainly used in three-dimensional display devices. Solid-state lenses generally use organic materials such as resins and are made by thermal reflow technology or printing technology. The resin material has a deformation problem, resulting in poor attachment accuracy, making the image displayed by the entire three-dimensional display device prone to distortion problems. This problem is more prominent especially in large-size three-dimensional display devices.

[0070] In order to at least solve one of the above technical problems, embodiments of this disclosure provide a microlens structure, a backlight module and a display panel. Below, in conjunction with the drawings and specific embodiments, the microlens structure, the backlight module and the display panel provided by the embodiments of this disclosure will be further described in detail.

[0071] In a first aspect, embodiments of this disclosure provide a microlens structure. Figure 1 As a schematic structural diagram of the first microlens structure provided by the embodiments of this disclosure, as Figure 1 shown, 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 an integrally formed structure, and the materials of both the first lens body 101 and the first microlenses 102 are inorganic transparent materials.

[0072] The first lens body 101 can support a plurality of microlenses 102 thereon. At the same time, the side of the first lens body 101 facing away from the microlenses 102 is a flat surface, so as to facilitate bonding with other components (such as a two-dimensional display panel) in the three-dimensional display device.

[0073] The number of the first microlenses 102 can be multiple. They can converge light rays and change the original optical path of the light rays to achieve a three-dimensional display effect. The multiple first microlenses 102 can be arranged in an array, and can uniformly adjust the optical path of the incident light rays to improve the display effect of the three-dimensional image.

[0074] The first lens body 101 and the first microlenses 102 can be made of the same material. For example, both are made of inorganic transparent materials. The specific materials can be inorganic transparent materials such as glass and sapphire. For cost consideration, glass can be used.

[0075] During the preparation process, an etching process can be used to form the patterns of multiple microlenses 102 on one side of the first lens body 101. According to the specific morphology of the microlenses, a suitable area can be selected to remove the glass to form multiple first microlenses 102. For example, if the microlens 102 is a convex lens, the glass at the edge of the pattern of the microlens 102 can be removed to form the morphology of a convex lens. If the microlens 102 is a concave lens, the glass at the edge of the pattern of the microlens 102 can be removed to form the morphology of a concave lens. Figure 1 The microlens 102 of the shown microlens structure is a convex lens. The case of a concave lens will be further described in detail in the following description.

[0076] In the microlens structure provided by the embodiments of the present disclosure, the first lens body 101 and the first microlenses 102 are an integrally formed structure, which can avoid the influence of the gap generated by the bonding between the two on the display effect. At the same time, the process steps can be reduced, and the preparation cost can be saved. And the microlens structure can be directly formed by an etching process without using a thermal reflow technology or the like that affects the morphology of the microlens structure, so that the deformation of the microlens structure can be avoided, and thus the display effect can be improved. At the same time, the materials of the first lens body 101 and the first microlenses 102 are both inorganic transparent materials, and the inorganic transparent materials have good stability and are not easily affected by the outside world and deformed during the preparation process, the subsequent bonding and display processes, which can further improve the display effect.

[0077] Figure 2 FIG. is a schematic structural diagram of a second microlens structure provided by the embodiments of the present disclosure. As Figure 2 shown, the microlens structure further includes: a planarization layer 103 covering the first microlenses 102; the refractive index of the planarization layer 103 is less than the refractive index of the first microlenses 102.

[0078] The planarization layer 103 can be made of an organic insulating material, which, for example, includes resin materials such as polyimide, epoxy resin, acrylic, polyester, photoresist, polyacrylate, polyamide, silicone, etc. For another example, the organic insulating material includes elastic materials such as urethane and thermoplastic polyurethane (TPU). The planarization layer 103 can planarize the surfaces of the plurality of first microlenses 102 to facilitate their flat fitting with other structures. When the first microlens 102 is a convex lens, the refractive index of the planarization layer 103 is less than that of the first microlens 102, which can avoid the influence of the planarization layer 103 on the light passing through the first microlens 102.

[0079] Figure 3 The structural schematic diagram of the third microlens structure provided by the embodiment of the present disclosure is shown in Figure 3 As shown, the difference between this microlens structure and the Figure 1 shown microlens structure is that Figure 3 in the shown microlens structure, the first microlens 102 is a concave lens, and the concave lens can diverge light and change the original light path to achieve a three-dimensional display effect. Its materials and preparation process are the same as those of the Figure 1 shown microlens structure and will not be elaborated here.

[0080] Figure 4 The structural schematic diagram of the fourth microlens structure provided by the embodiment of the present disclosure is shown in Figure 4 As shown, the microlens further includes: a planarization layer 103 covering the first microlens; the refractive index of the planarization layer 103 is less 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 greater than that of the first microlens 102, which can avoid the influence of the planarization layer 103 on the light passing through the first microlens 102.

[0081] As shown in Figures 1 to 4 optionally, the width of the first microlens 102 is 150 μm to 300 μm; the arch height of the first microlens 102 is 40 μm to 60 μm. For example, when the width of the first microlens 102 is 200 μm and the arch height is 50 μm, it can ensure that the first microlens 102 has a good light path adjustment effect and at the same time has a small thickness, which is beneficial to the thinning of the three-dimensional display device.

[0082] Figure 5 The structural schematic diagram of the fifth microlens structure provided by the embodiment of the present disclosure is shown in Figure 5 As shown, the microlens structure further includes: a light-shielding layer 104 disposed between adjacent first microlenses 102; the light-shielding layer 104 is located on the side of the first lens body 101 close to the first microlens 102.

[0083] The light-shielding layer 104 can be made of an organic material such as a black matrix, and can absorb the light incident thereon. Specifically, the light-shielding layer 104 can be located on the side of the first lens body 101 away from the first microlens 102. The light-shielding layer 104 is disposed between adjacent first microlenses 102, which can prevent the light passing through adjacent first microlenses 102 from interfering with each other, thereby avoiding crosstalk and improving the 3D display effect.

[0084] Figure 6 The structural schematic diagram of the sixth microlens structure provided by the embodiment of the present disclosure is as Figure 6 shown. The difference between this microlens structure and the Figure 5 microlens structure shown is that Figure 6 in the microlens structure shown, the light-shielding layer 104 is located on the side of the first lens body 101 away from the first microlens 102, which can absorb the light incident on adjacent first microlenses 102, prevent the light incident on adjacent first microlenses 102 from interfering with each other, thereby avoiding crosstalk and improving the 3D display effect.

[0085] In some embodiments, the shape of the first microlens 102 is a cylindrical lens or a spherical lens.

[0086] Figure 7 The structural schematic diagram of the seventh microlens structure provided by the embodiment of the present disclosure is Figure 8 The structural schematic diagram of the eighth microlens structure provided by the embodiment of the present disclosure is Figure 7 and Figure 8 the microlens structures shown are respectively similar to the Figure 5 and Figure 6 microlens structures shown. In the Figure 5 and Figure 6 microlens structures shown, the first microlens 102 is a convex lens. In the Figure 7 and Figure 8 microlens structures shown, the microlens is a concave lens, and their implementation principles are similar and will not be described in detail here.

[0087] Figure 9 The structural schematic diagram of the ninth microlens structure provided by the embodiment of the present disclosure is as Figure 9 shown. 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 the side of the first lens body 101 away from the first microlens 102; the second microlenses 202 are located on the side of the second lens body 201 away from the first lens body 101.

[0088] Figure 9 The microlens structure shown can be regarded as Figure 1 and Figure 3The combined structure of the two sets of microlens structures shown, where 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 effects of both convex and concave lenses on the optical path adjustment of light, and at the same time can increase the arch height of the entire microlens structure, thereby improving the optical path adjustment effect and further improving the display effect.

[0089] 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.

[0090] During the preparation 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 process steps and save the preparation cost. At the same time, it can avoid affecting the propagation of light by using a bonding method.

[0091] Figure 10 The structural schematic diagram of the tenth microlens structure provided by the embodiments of the present disclosure, as Figure 10 shown, the microlens structure further includes: a second lens body 201 and a plurality of second microlenses 202; the second microlenses 202 are located on the side of the first microlenses 102 away from the first lens body 101; the second lens body 201 is located on the side of the second microlenses 202 away from the first microlenses 102.

[0092] Figure 10 The microlens structure shown can be regarded as a combined structure of two sets of Figure 1 the microlens structures shown, where both the first microlens 102 and the second microlens 202 are convex lenses, and the widths of the first microlens 102 and the second microlens 202 are the same. This can increase the arch height of the entire microlens structure, thereby improving the optical path adjustment effect and further improving the display effect.

[0093] As Figure 10 shown, 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 less than the refractive indices of the first microlens 102 and the second microlens 202.

[0094] When both the first microlens 102 and the second microlens 202 are convex lenses, the refractive index of the planarization layer 103 being less than the refractive indices of the first microlens 102 and the second microlens 202 can avoid the influence of the planarization layer 103 on the light passing through the first microlens 102 and the second microlens 202.

[0095] Figure 11 The structural schematic diagram of the eleventh micro-lens structure provided by the embodiment of the present disclosure is shown as Figure 11 in the figure. Both the first micro-lens 102 and the second micro-lens 202 are concave lenses, and the widths of the first micro-lens 102 and the second micro-lens 202 are the same.

[0096] Figure 11 The micro-lens structure shown can be regarded as a combined structure of two groups of Figure 3 the micro-lens structures shown. Both the first micro-lens 102 and the second micro-lens 202 are concave lenses, and the widths of the first micro-lens 102 and the second micro-lens 202 are the same. In this way, the arch height of the entire micro-lens structure can be increased, so that the optical path adjustment effect can be improved, and then the display effect can be improved.

[0097] As Figure 11 shown, the micro-lens structure further includes: a planarization layer 103; the planarization layer 103 is located between the first micro-lens 102 and the second micro-lens 202, and the refractive index of the planarization layer 103 is greater than the refractive indices of the first micro-lens 102 and the second micro-lens 202.

[0098] When both the first micro-lens 102 and the second micro-lens 202 are concave lenses, the refractive index of the planarization layer 103 being greater than the refractive indices of the first micro-lens 102 and the second micro-lens 202 can avoid the influence of the planarization layer 103 on the light passing through the first micro-lens 102 and the second micro-lens 202.

[0099] In a second aspect, the embodiment of the present disclosure provides a backlight module, and the backlight module includes the micro-lens structure provided in any of the above embodiments. Figure 12 The structural schematic diagram of a backlight module provided by the embodiment of the present disclosure is shown as Figure 12 in the figure. The backlight module further includes: a plurality of first light-emitting devices 301; the first light-emitting devices 301 are located on the side of the first lens body 101 away from the first micro-lens 102, and the first light-emitting devices 301 are disposed at the focal positions of the first micro-lens 102.

[0100] The first light-emitting devices 301 may specifically be mini light-emitting diodes (mini LEDs), which can provide a light source for the liquid crystal display panel. The first micro-lens 102 is a convex lens. Among them, the first light-emitting devices 301 are located on the side of the first lens body 101 away from the first micro-lens 102, and the first light-emitting devices 301 are disposed at the focal positions of the first micro-lens 102. The first light-emitting devices 301 can be point light sources, and the light emitted by them can be converged by the first micro-lens 102 to form a surface light source and then irradiated into the liquid crystal display panel. Therefore, the brightness of the backlight source can be increased and the energy consumption can be saved.

[0101] In some embodiments, as Figure 12As shown, the backlight module further includes: a sensor device 302 located between adjacent first light-emitting devices 301; the sensor device 302 is located on the side of the first lens body 101 away from the first microlens 102, and the sensor device 302 is disposed at the focal position of the first microlens 102.

[0102] The sensor device 302 can sense actions such as the user's gestures by acquiring the user's image to implement virtual reality and augmented reality scenarios. The sensor device 302 can be disposed between adjacent first light-emitting devices 301, and is located on the side of the first lens body 101 away from the first microlens 102, and the sensor device 302 is disposed at the focal position of the first microlens 102. The first microlens 102 can converge the external environmental light and then transmit it to the sensor device 302, thereby enhancing the sensing ability of the sensor device 302 and improving the user experience.

[0103] In a third aspect, an embodiment of the present disclosure provides a display panel, which includes the microlens structure provided in any of the above embodiments. Figure 13 FIG. is a schematic structural diagram of the first display panel provided by an embodiment of the present disclosure. As Figure 13 shown, the display panel includes: a first substrate 401 and a second substrate 402 disposed opposite to each other, and a liquid crystal layer 403 located between the first substrate 401 and the second substrate 402; the first lens body 101 is located on the side of the second substrate 402 away from the liquid crystal layer 403.

[0104] Figure 13 The display panel shown is a liquid crystal display panel. The liquid crystal layer 403 can be deflected under the drive of an electric field between the first substrate 401 and the second substrate 402 to transmit the light emitted by the backlight source and realize the display function. The microlens structure can be disposed on the second substrate 402. Specifically, the first lens body 102 is located on the side of the second substrate 402 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 adhered through 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 the light passing through the liquid crystal display panel so that the distances of the light entering the user's two eyes are different, thereby realizing a three-dimensional display effect.

[0105] Figure 14 FIG. is a schematic structural diagram of the second display panel provided by an embodiment of the present disclosure. As Figure 14 shown, the display panel includes: a first substrate 401 and a second substrate 402 disposed opposite to each other, and a liquid crystal layer 403 located between the first substrate 401 and the second substrate 402; the first lens body 101 is located between the liquid crystal layer 403 and the second substrate 402.

[0106] Figure 14 The display panel shown is a liquid crystal display panel, which is different from Figure 13 the display panel shown in that Figure 14 in the display panel shown, the microlens structure can be arranged inside 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 can reduce the space occupied by the microlens structure, compared with Figure 13 the display panel shown, the thickness of the display panel can be reduced, which is beneficial to the thinning of the display panel.

[0107] Figure 15 FIG. 11 is a schematic structural diagram of a third display panel provided by an embodiment of the present disclosure. Figure 16 FIG. 12 is a schematic structural diagram of a fourth display panel provided by an embodiment of the present disclosure. As Figure 15 and Figure 16 shown, the second substrate 402 serves as the first lens body 101.

[0108] The second substrate 402 is generally made of glass. During the preparation process, with the second substrate 402 as the first lens body 101, the corresponding side of the second substrate 402 is etched to form the first microlens 102. This can reduce the process steps and save the preparation cost. At the same time, the structure of the first lens body 101 can be reduced, thereby reducing the thickness of the display panel, which is beneficial to the thinning of the display panel.

[0109] As Figure 13 and Figure 14 shown, a plurality of third microlenses 105 are formed on the side of the first substrate 401 facing away from the liquid crystal layer 403.

[0110] The third microlens 105 can be formed by etching the surface of the first substrate 401, and its shape can be a triangular lens, a cylindrical lens, a spherical lens, etc. It can converge the light emitted by the backlight source and irradiate it into the liquid crystal layer 403 to save energy consumption.

[0111] In some embodiments, as Figures 13 to 16 shown, 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 302 disposed in the non-display area; the sensor devices 302 are located on the side of the first lens body 101 facing away from the first microlens 102, and the sensor devices 302 are disposed at the focal position of the first microlens 102.

[0112] The sensor device 302 can realize virtual reality and augmented reality scenes by acquiring the user's image and sensing the user's gestures and other actions. The sensor device 302 can be located on the side of the first lens body 101 away from the first microlens 102, and the sensor device 302 is set at the focal position of the first microlens 102. The first microlens 102 can converge the external environment light and then transmit it to the sensor device 302, thereby enhancing the perception ability of the sensor device 302 and improving the user's use effect.

[0113] Figure 17 A schematic diagram of the structure of a fifth display panel provided in an embodiment of the present disclosure is shown in FIG. Figure 17 As shown, 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 .

[0114] Figure 17 The display panel shown may 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, and the second light-emitting device 501 is located on the side of the first lens body 101 away from the first microlens 102, and the second light-emitting device 501 is arranged at the focal position of the first microlens 102. The light emitted by the OLED is converged by the first microlens 502 and then emitted. The OLED display panel is a two-dimensional display panel, and the first microlens 102 can adjust the optical path of the light passing through the OLED display panel so that the distances at which the light enters the user's two eyes are different, thereby achieving a three-dimensional display effect.

[0115] In some embodiments, Figure 17 As shown, 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 arranged at a focal position of the first microlens 102 .

[0116] The sensor device 302 can realize virtual reality and augmented reality scenes by acquiring the user's image and sensing the user's gestures and other actions. The sensor device 302 can be located on the side of the first lens body 101 away from the first microlens 102, and the sensor device 302 is set at the focal position of the first microlens 102. The first microlens 102 can converge the external environment light and then transmit it to the sensor device 302, thereby enhancing the perception ability of the sensor device 302 and improving the user's use effect.

[0117] Fourthly, an embodiment of the present disclosure provides a display device, which includes a microlens structure, a backlight module or a display panel provided in any of the above embodiments. The display device may specifically be a naked-eye 3D display device, a virtual reality display device, or an augmented reality display device. The implementation principle thereof is the same as that of the above microlens structure, backlight module, and display panel, and will not be elaborated herein.

[0118] It can be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principle of the present disclosure. However, the present disclosure is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present disclosure, and these modifications and improvements are also regarded as the protection scope 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 from 150 micrometers to 300 micrometers; the arch height of the first microlenses is from 40 micrometers to 60 micrometers.

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 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 away from the first microlenses; The second microlenses are located on the side of the second lens body 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 away from the first lens body; The second lens body is located on the side of the second microlenses 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 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 includes: a sensor device located between adjacent ones of the first light-emitting devices; The sensor device is located on a side of the first lens body facing away from the first microlens, and the sensor device is disposed at a focal position of the first microlens.

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

21. The display panel according to claim 20, wherein, 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; The first lens body is located on a side of the second substrate facing away from the liquid crystal layer.

22. The display panel according to claim 20, wherein, 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; 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 microlenses are formed on a side of the first substrate facing away from the liquid crystal layer.

25. The display panel according to claim 20, wherein, 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; The sensor device is located on a side of the first lens body facing away from the first microlens, and the sensor device is disposed 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 facing away from the first microlens, and the second light-emitting device is disposed 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 ones of the second light-emitting devices; The sensor device is located on a side of the first lens body facing away from the first microlens, and the sensor device is disposed at a focal position of the first microlens.

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