Optical lens, display device and electronic equipment

Abstract

The utility model relates to the technical field of display, in particular to an optical lens, a display device and electronic equipment. In the embodiment of the utility model, required light rays selectively penetrate through the first semi-reflecting film layer and are reflected by the reflecting film layer, so that the light rays are reflected, and imaging can be carried out. Compared with a mode of imaging by adopting an optical grating, the reflecting film layer is adopted for imaging, so that the situation that imaging has discontinuous feeling due to the selectivity characteristic of the optical grating can be improved, the imaging is more uniform and fine, the display effect is further improved, manufacturing is convenient, and the manufacturing cost is reduced. Besides, due to the fact that the first plate body and the second plate body are matched with each other, corresponding film layers can be manufactured conveniently, the manufacturing process of the optical lens is more flexible, and the optical lens is suitable for more scenes. Therefore, the optical lens provided by the embodiment of the invention not only can improve the display effect, but also has the advantages of being convenient to manufacture, reducing the manufacturing cost and having better adaptability.

Description

Technical Field

[0001] This application relates to the field of display technologies, and particularly to optical lenses, display devices, and electronic devices. Background Art

[0002] HUD (Head Up Display) devices are increasingly used in vehicles. The HUD device in a vehicle can display driving information and information of an external intelligent device in real time in the driver's field of view. The HUD device mainly includes an imaging device and a projection device. The imaging device can be any display device capable of displaying images. The projection device is used to project the image displayed by the imaging device onto the windshield of the vehicle, and the windshield can reflect the image into the driver's field of view. However, the display effect of the HUD device needs to be improved. Summary of the Utility Model

[0003] Based on this, it is necessary to provide an optical lens, a display device, and an electronic device to improve the display effect.

[0004] According to one aspect of this application, an embodiment of this application provides an optical lens, including:

[0005] A first substrate, including a first plate body and a reflective film layer. The first plate body has a first surface and a second surface oppositely arranged along a first direction, and the reflective film layer is disposed on the first surface or the second surface;

[0006] A second substrate, including a second plate body and a first semi-reflective film layer. The second plate body has a third surface and a fourth surface oppositely arranged along the first direction, and the first semi-reflective film layer is disposed on the third surface or the fourth surface; and

[0007] An adhesive layer, adhesively bonded between the first substrate and the second substrate along the first direction.

[0008] In one embodiment, the second surface of the first plate body and the third surface of the second plate body face each other and are oppositely arranged along the first direction;

[0009] The reflective film layer is disposed on the second surface.

[0010] In one embodiment, a grating structure is provided on the first plate body.

[0011] In one embodiment, the second surface of the first plate body and the third surface of the second plate body face each other and are oppositely arranged along the first direction;

[0012] The reflective film layer is disposed on the first surface, and the first substrate further includes a second semi-reflective film layer disposed on the second surface;

[0013] One of the first semi-reflective film layer and the second semi-reflective film layer is configured to transmit light with a wavelength greater than a first preset wavelength, and the other is configured to transmit light with a wavelength less than a second preset wavelength; the first preset wavelength is less than the second preset wavelength.

[0014] In one embodiment, the material of the second semi-reflective film layer includes a first high refractive index material and / or a first low refractive index material;

[0015] The first high refractive index material is selected from one of titanium oxide, tantalum pentoxide, niobium oxide, cerium oxide, silicon, zinc selenide, zinc sulfide, silicon hydride, silicon nitride, lead fluoride, and the first low refractive index material is selected from one of silicon oxide, aluminum oxide, tungsten oxide, magnesium oxide, yttrium oxide, cerium fluoride, magnesium fluoride, sodium aluminum fluoride.

[0016] In one embodiment, the second surface of the first plate body and the third surface of the second plate body face each other and are oppositely arranged along a first direction;

[0017] The first semi-reflective film layer is provided on the fourth surface.

[0018] In one embodiment, the second substrate further includes a third semi-reflective film layer provided on the third surface;

[0019] One of the first semi-reflective film layer and the third semi-reflective film layer is configured to transmit light with a wavelength less than a third preset wavelength, and the other is configured to transmit light with a wavelength greater than a fourth preset wavelength; the third preset wavelength is less than the fourth preset wavelength.

[0020] In one embodiment, the material of the third semi-reflective film layer includes a second high refractive index material and a second low refractive index material;

[0021] The second high refractive index material is selected from one of titanium oxide, tantalum pentoxide, niobium oxide, cerium oxide, silicon, zinc selenide, zinc sulfide, silicon hydride, silicon nitride, lead fluoride, and the second low refractive index material is selected from one of silicon oxide, aluminum oxide, tungsten oxide, magnesium oxide, yttrium oxide, cerium fluoride, magnesium fluoride, sodium aluminum fluoride.

[0022] In one embodiment, the material of at least one of the first plate body and the second plate body includes glass.

[0023] In one embodiment, the material of one of the first plate body and the second plate body includes glass, and the material of the other includes one of plexiglass and thermoplastic.

[0024] In one embodiment, the first plate body and the second plate body are configured as lenses with the same target surface type; the target surface type includes one of a spherical surface, a cylindrical surface, and a free-form surface.

[0025] In one embodiment, the first plate body and the second plate body are configured to protrude in the same target direction;

[0026] Wherein, the target direction is the direction in which the first plate body points to the second plate body; or, the target direction is the direction in which the second plate body points to the first plate body.

[0027] In one embodiment, the thickness of the first plate body is 0.1 mm to 3 mm; and / or

[0028] the thickness of the reflective film layer is 0.01 μm to 20 μm; and / or

[0029] the thickness of the second plate body is 0.1 mm to 6 mm; and / or

[0030] the thickness of the first semi-reflective film layer is 0.1 μm to 20 μm; and / or

[0031] the thickness of the bonding layer is 0.01 mm to 0.5 mm.

[0032] In one embodiment, the material of the reflective film layer includes a metal; and / or

[0033] the material of the first semi-reflective film layer includes a third high refractive index material and / or a third low refractive index material; the third high refractive index material is selected from one of titanium oxide, tantalum pentoxide, niobium oxide, cerium oxide, silicon, zinc selenide, zinc sulfide, silicon hydride, silicon nitride, and lead fluoride, and the third low refractive index material is selected from one of silicon oxide, aluminum oxide, tungsten oxide, magnesium oxide, yttrium oxide, cerium fluoride, magnesium fluoride, and sodium aluminum fluoride; and / or

[0034] the material of the bonding layer includes one of OCA optical adhesive and OCR optical adhesive.

[0035] According to another aspect of the present application, an embodiment of the present application provides a display device, including the optical lens in any of the above embodiments.

[0036] In one embodiment, the display device includes a plurality of optical lenses, and all the optical lenses are configured to be arranged along a preset path.

[0037] In one embodiment, among all the optical lenses, there are optical lenses that protrude in the first preset direction and optical lenses that protrude in the second preset direction;

[0038] The first preset direction is the direction in which the first plate body points to the second plate body, and the second preset direction is the direction in which the second plate body points to the first plate body; the first preset direction, the second preset direction, and the first direction are parallel to each other.

[0039] According to another aspect of the present application, embodiments of the present application provide an electronic device, including the display device in any of the above embodiments.

[0040] In one embodiment, the electronic device is a head-up display device.

[0041] Among the above optical lens, display device and electronic device, the optical lens at least includes a first substrate, a second substrate, and an adhesive layer bonding the first substrate and the second substrate. The first substrate includes a first plate body and a reflective film layer provided on the first plate body, and the second substrate includes a second plate body and a first semi-reflective film layer provided on the second plate body. The first semi-reflective film layer selectively transmits the required light and reflects it via the reflective film layer, thereby realizing the reflection of light and enabling imaging. Compared with the imaging method using a grating, imaging using the reflective film layer can not only improve the discontinuity of imaging caused by the selective characteristics of the grating, making the imaging more uniform and delicate, thereby improving the display effect, but also is convenient for manufacturing and reduces the manufacturing cost. In addition, compared with the method of manufacturing a grating, since the first plate body and the second plate body are used in cooperation, it is not only convenient for manufacturing the corresponding film layer, but also makes the manufacturing process of the optical lens more flexible and applicable to more scenarios. Therefore, the optical lens provided by the embodiments of the present application can not only improve the display effect, but also has the advantages of being convenient for manufacturing, reducing the manufacturing cost, and being more adaptable.

[0042] Additional aspects and advantages of the embodiments of the present application will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. And in all the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0044] Figure 1 is a schematic three-dimensional structure diagram of an optical lens in an embodiment of the present application;

[0045] Figure 2 is Figure 1 a schematic cross-sectional structure diagram of the shown optical lens;

[0046] Figure 3 is a schematic cross-sectional structure diagram of an optical lens in another embodiment of the present application;

[0047] Figure 4 is a schematic cross-sectional structure diagram of an optical lens in yet another embodiment of the present application;

[0048] Figure 5 This is a schematic three-dimensional structure diagram of an optical lens in another embodiment of the present application;

[0049] Figure 6 is Figure 5 a schematic cross-sectional structure diagram of the optical lens shown.

[0050] Description of reference numerals:

[0051] Optical lens 100;

[0052] First substrate 110, first plate body 111, first surface m1, second surface m2, reflective film layer 112, second semi-reflective film layer 113;

[0053] Second substrate 120, second plate body 121, third surface m3, fourth surface m4, first semi-reflective film layer 122, third semi-reflective film layer 123;

[0054] Adhesive layer 130;

[0055] First direction F1. Detailed implementation manners

[0056] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0057] In the description of the present application, it should be understood that if there appear these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0058] In addition, if the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of this application, if the term "plural" appears, the meaning of "plural" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0059] In this application, unless otherwise clearly specified and limited, if terms such as "installed", "connected", "linked", "fixed", etc. appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0060] In this application, unless otherwise clearly specified and limited, if there is a description such as a first feature "on" or "under" a second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature "under", "beneath" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

[0061] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0062] Figure 1 The three-dimensional structural schematic diagram of the optical lens 100 in an embodiment of this application is shown; Figure 2 is shown Figure 1 The cross-sectional structural schematic diagram of the shown optical lens 100 is shown; for the convenience of description, only the content related to the embodiment of this application is shown.

[0063] Please refer to Figure 1 andFigure 2 , an embodiment of the present application provides an optical lens 100, which includes a first substrate 110, a second substrate 120, and an adhesive layer 130.

[0064] The first substrate 110 includes a first plate body 111 and a reflective film layer 112. The first plate body 111 is arranged in a plate shape and is a component for carrying the reflective film layer 112. The first plate body 111 is configured as a transparent component. The first plate body 111 has a first surface m1 and a second surface m2 that are oppositely arranged along the first direction F1. The first direction F1 is the thickness direction of the optical lens 100 and also the thickness direction of each component in the optical lens 100. The reflective film layer 112 is a film layer for reflecting light. The reflective film layer 112 is provided on the first surface m1 or the second surface m2 of the first plate body 111. Taking Figure 1 and Figure 2 as an example, the situation where the reflective film layer 112 is provided on the second surface m2 of the first plate body 111 is schematically shown. Exemplarily, the reflective film layer 112 can be formed on the corresponding surface of the first plate body 111 by a Physical Vapor Deposition (PVD) process. Of course, other methods can also be used to provide the reflective film layer 112, and no specific limitation is made here.

[0065] The second substrate 120 includes a second plate body 121 and a first semi-reflective film layer 122. The second plate body 121 is arranged in a plate shape and is a component for carrying the first semi-reflective film layer 122. The second plate body 121 is configured as a transparent component. The second plate body 121 has a third surface m3 and a fourth surface m4 that are oppositely arranged along the first direction F1. The first semi-reflective film layer 122 is a film layer for selectively transmitting the required light. Specifically, the first semi-reflective film layer 122 can reflect a part of the propagating light and transmit a part of it. That is, the first semi-reflective film layer 122 is a beam-splitting film with the characteristics of reflecting light and transmitting light.

[0066] The first semi-reflective film layer 122 is provided on the third surface m3 or the fourth surface m4. Taking Figure 1 and Figure 2 as an example, the situation where the first semi-reflective film layer 122 is provided on the fourth surface m4 of the second plate body 121 is schematically shown.

[0067] The adhesive layer 130 is a layer for providing adhesion and has certain optical properties. The adhesive layer 130 is adhesively bonded between the first substrate 110 and the second substrate 120 along the first direction F1. Taking Figure 1 and Figure 2For example, it is shown that the first plate body 111, the reflective film layer 112, the adhesive layer 130, the second plate body 121, and the first semi-reflective layer are sequentially stacked along the first direction F1, and the second surface m2 of the first plate body 111 and the third surface m3 of the second plate body 121 face each other and are oppositely arranged along the first direction F1. At this time, the adhesive layer 130 is adhered to the reflective film layer 112 and the third surface m3 of the second plate body 121 along the first direction F1. It can be understood that the objects adhered by the adhesive layer 130 can be determined according to the positions of the reflective film layer 112 and the first semi-reflective film layer 122, and the side surfaces of the first plate body 111 and the second plate body 121 that are oppositely arranged, as long as the first substrate 110 and the second substrate 120 are connected by means of the adhesive layer 130, which will not be elaborated here.

[0068] The first semi-reflective film layer 122 selectively transmits the required light and is reflected by the reflective film layer 112, thereby realizing the reflection of light and enabling imaging. Compared with the method of using a grating for imaging, using the reflective film layer 112 for imaging can not only improve the situation of discontinuous imaging caused by the selective characteristics of the grating, making the imaging more uniform and delicate, thereby improving the display effect, but also is convenient for manufacturing and reduces the manufacturing cost. In addition, compared with the method of manufacturing a grating, since the first plate body 111 and the second plate body 121 are in a cooperative form, it is not only convenient for manufacturing the corresponding film layers, but also makes the manufacturing process of the optical lens 100 more flexible and applicable to more scenarios. Therefore, the optical lens 100 provided by the embodiment of the present application can not only improve the display effect, but also has the advantages of being convenient for manufacturing, reducing the manufacturing cost, and being more adaptable.

[0069] In some embodiments, please continue to refer to Figure 1 and Figure 2 , the second surface m2 of the first plate body 111 and the third surface m3 of the second plate body 121 face each other and are oppositely arranged along the first direction F1. The reflective film layer 112 is provided on the second surface m2.

[0070] In this way, the reflective film layer 112 is located inside the optical lens 100, and the second plate body 121 is located outside the optical lens 100. Thus, compared with the situation where the reflective film layer 112 is provided on the first surface m1 of the first plate body 111, the reflective film layer 112 can be protected by the second plate body 121, reducing the risk of damage to the reflective film layer 112 caused by being scratched by external components.

[0071] In some embodiments, please continue to refer to Figure 1 and Figure 2 , a grating structure (not shown in the figure) is provided on the first plate body 111.

[0072] In this way, the grating structure can be used to transmit or reflect the light on the side of the first plate body 111 facing away from the second plate body 121, so that the optical lens 100 can cooperate with other components, thereby broadening the usage scenarios. The type and shape of the grating structure can be set according to specific usage situations, and no specific limitations are made here.

[0073] Of course, in some other embodiments, it may also be that the first surface m1 of the first plate body 111 and the third surface m3 of the second plate body 121 face each other and are arranged opposite to each other along the first direction F1, or it may also be that the first surface m1 of the first plate body 111 and the fourth surface m4 of the second plate body 121 face each other and are arranged opposite to each other along the first direction F1, etc. No specific limitations are made here.

[0074] Figure 3 Fig. shows a schematic cross-sectional structure diagram of the optical lens 100 in another embodiment of the present application; for the sake of convenience of description, only the content related to the embodiments of the present application is shown.

[0075] In some embodiments, please refer to Figure 3 , the second surface m2 of the first plate body 111 and the third surface m3 of the second plate body 121 face each other and are arranged opposite to each other along the first direction F1. The reflective film layer 112 is provided on the first surface m1 of the first plate body 111, and the first substrate 110 further includes a second semi-reflective film layer 113 provided on the second surface m2. One of the first semi-reflective film layer 122 and the second semi-reflective film layer 113 is configured to be able to transmit light with a wavelength greater than the first preset wavelength, and the other is configured to be able to transmit light with a wavelength less than the second preset wavelength; the first preset wavelength is less than the second preset wavelength. The second semi-reflective film layer 113 can be understood with reference to the aforementioned first semi-reflective film layer 122, and no further details are given here.

[0076] Exemplarily, the first preset wavelength can be 380 nm, the second preset wavelength can be 760 nm, the first semi-reflective film layer 122 is configured to be able to transmit light with a wavelength greater than 380 nm, and the second semi-reflective film layer 113 is configured to be able to transmit light with a wavelength less than 760 nm, so that the light with a wavelength between 380 nm and 760 nm can reach the reflective film layer 112, and the reflective film layer 112 is used to reflect the light with a wavelength between 380 nm and 760 nm. Of course, the values of the first preset wavelength and the second preset wavelength can be determined according to specific usage requirements, and no specific limitations are made here.

[0077] In this way, by providing the second semi-reflective film layer 113 that cooperates with the first semi-reflective film layer 122, the control of the wavelength range of the required light can be realized. In this way, the combination of the first semi-reflective film layer 122 and the second semi-reflective film layer 113 can be adapted to more usage scenarios to meet different usage requirements.

[0078] In some embodiments, with continued reference to Figure 3 , the material of the second semi-reflective film layer 113 includes a first high refractive index material and / or a first low refractive index material. The first high refractive index material is selected from one of titanium oxide, tantalum pentoxide, niobium oxide, cerium oxide, silicon, zinc selenide, zinc sulfide, silicon hydride, silicon nitride, and lead fluoride, and the first low refractive index material is selected from one of silicon oxide, aluminum oxide, tungsten oxide, magnesium oxide, yttrium oxide, cerium fluoride, magnesium fluoride, and sodium aluminum fluoride.

[0079] It should be noted that the term "first low refractive index material" is relative to the term "first high refractive index material". In the embodiments of the present application, the term "first low refractive index material" may refer to a material with a refractive index of 1.65 or lower for visible light wavelengths, and the term "first high refractive index material" may refer to a material with a refractive index of 1.7 or higher for visible light wavelengths.

[0080] When the material of the second semi-reflective film layer 113 includes a first high refractive index material and a first low refractive index material, the second semi-reflective film layer 113 may be formed by laminating at least one first high refractive index material layer and at least one first low refractive index material layer.

[0081] In this way, the material of the second semi-reflective film layer 113 can be flexibly selected to balance the production cost while having a certain reflection ability. It can be set according to specific usage requirements and is not specifically limited herein.

[0082] In some embodiments, with continued reference to Figures 1 to 3 , the second surface m2 of the first plate body 111 and the third surface m3 of the second plate body 121 face each other and are disposed opposite to each other along the first direction F1, and the first semi-reflective film layer 122 is provided on the fourth surface m4 of the second plate body 121. That is, the first semi-reflective film layer 122 is located outside the optical lens 100, which is beneficial for transmitting the required light.

[0083] Of course, in some other embodiments, when the second surface m2 of the first plate body 111 and the third surface m3 of the second plate body 121 face each other and are disposed opposite to each other along the first direction F1, the first semi-reflective film layer 122 may also be provided on the third surface m3 of the second plate body 121. In this way, the first semi-reflective film layer 122 can be protected by the first plate body 111, reducing the risk of damage caused by being scratched by external components.

[0084] The position of the first semi-reflective film layer 122 relative to the first plate body 111 can be set according to specific usage conditions and is not specifically limited herein.

[0085] Figure 4The cross-sectional structural schematic diagram of the optical lens 100 in another embodiment of the present application is shown; for the convenience of description, only the content related to the embodiments of the present application is shown.

[0086] In some embodiments, please refer to Figure 4 , the second substrate 120 further includes a third semi-reflective film layer 123 provided on the third surface m3. The third semi-reflective film layer 123 can be understood with reference to the aforementioned first semi-reflective film layer 122, and will not be elaborated here. One of the first semi-reflective film layer 122 and the third semi-reflective film layer 123 is configured to be able to transmit light with a wavelength less than a third preset wavelength, and the other is configured to be able to transmit light with a wavelength greater than a fourth preset wavelength; the third preset wavelength is less than the fourth preset wavelength.

[0087] That is, the first semi-reflective film layer 122 and the third semi-reflective film layer 123 are respectively provided on the third surface m3 and the fourth surface m4 of the second plate body 121, and the first semi-reflective film layer 122 and the third semi-reflective film layer 123 are located on both sides of the second plate body 121 along the first direction F1.

[0088] Exemplarily, the third preset wavelength can be 380 nm, the fourth preset wavelength can be 760 nm, the first semi-reflective film layer 122 is configured to be able to transmit light with a wavelength greater than 380 nm, and the third semi-reflective film layer 123 is configured to be able to transmit light with a wavelength less than 760 nm, so that the light with a wavelength between 380 nm and 760 nm can reach the reflective film layer 112, and the reflective film layer 112 is used to reflect the light with a wavelength between 380 nm and 760 nm. Of course, the values of the third preset wavelength and the fourth preset wavelength can be determined according to specific usage requirements, and no specific limitation is made here.

[0089] In this way, by providing the third semi-reflective film layer 123 that cooperates with the first semi-reflective film layer 122, the control of the wavelength range of the required light can be realized. In this way, the combination of the first semi-reflective film layer 122 and the third semi-reflective film layer 123 can be adapted to more usage scenarios to meet different usage requirements.

[0090] In some embodiments, please continue to refer to Figure 4 , the material of the third semi-reflective film layer 123 includes a second high refractive index material and / or a second low refractive index material. The second high refractive index material is selected from one of titanium oxide, tantalum pentoxide, niobium oxide, cerium oxide, silicon, zinc selenide, zinc sulfide, silicon hydride, silicon nitride, lead fluoride, and the second low refractive index material is selected from one of silicon oxide, aluminum oxide, tungsten oxide, magnesium oxide, yttrium oxide, cerium fluoride, magnesium fluoride, sodium aluminum fluoride.

[0091] It should be noted that the terms "second low refractive index material" and "second high refractive index material" can be understood with reference to the terms "first low refractive index material" and "first high refractive index material", and will not be elaborated here.

[0092] When the material of the third semi-reflective film layer 123 includes a second high refractive index material and a second low refractive index material, the third semi-reflective film layer 123 can be formed by laminating at least one second high refractive index material layer and at least one second low refractive index material layer.

[0093] In this way, the material of the third semi-reflective film layer 123 can be flexibly selected to balance the production cost while having a certain reflection ability. It can be set according to specific usage requirements and will not be specifically limited here.

[0094] In some embodiments, please continue to refer to Figures 1 to 4 , the material of at least one of the first plate body 111 and the second plate body 121 includes glass.

[0095] In this way, the weather resistance of the optical lens 100 can be improved, and further the service life and reliability of the optical lens 100 can be improved.

[0096] In some embodiments, please continue to refer to Figures 1 to 4 , the material of one of the first plate body 111 and the second plate body 121 includes glass, and the material of the other includes one of organic glass and thermoplastic.

[0097] Exemplarily, the material of the first plate body 111 can be organic glass and the material of the second plate body 121 can be glass; or the material of the first plate body 111 can be thermoplastic (e.g., polycarbonate) and the material of the second plate body 121 can be glass. It can be selected according to specific usage situations and will not be specifically limited here.

[0098] In this way, the materials of the first plate body 111 and the second plate body 121 can be flexibly selected according to usage situations to meet different usage requirements and will not be specifically limited here.

[0099] In some embodiments, please continue to refer to Figures 1 to 4 , the first plate body 111 and the second plate body 121 are configured as lenses with the same target surface shape. The target surface shape includes one of a spherical surface, a cylindrical surface, and a free-form surface.

[0100] In this way, different optical performances can be achieved by selecting different target surface shapes. It can be selected according to actual usage requirements and will not be specifically limited here.

[0101] Figure 5 Fig. shows a schematic three-dimensional structure diagram of the optical lens 100 in yet another embodiment of the present application; Figure 6shows Figure 5 Schematic cross-sectional structure diagram of the shown optical lens 100.

[0102] In some embodiments, the first plate body 111 and the second plate body 121 are configured to protrude in the same target direction. Wherein, the target direction is the direction from the first plate body 111 to the second plate body 121; or, the target direction is the direction from the second plate body 121 to the first plate body 111. It can be understood that the target direction is parallel to the first direction F1. That is, the target direction is the same as or opposite to the first direction F1.

[0103] Exemplarily, please continue to refer to Figures 1 to 4 , which shows a case where the first plate body 111 and the second plate body 121 are configured to protrude in a direction opposite to the first direction F1. At this time, the optical lens 100 protrudes in a direction opposite to the first direction F1. In combination with reference to Figure 5 and Figure 6 , which shows a case where the first plate body 111 and the second plate body 121 are configured to protrude in the first direction F1. At this time, the optical lens 100 protrudes in the first direction F1.

[0104] Thus, by adopting the Figures 1 to 4 shown protruding structure, the imaging range can be enlarged. By adopting the Figure 5 and Figure 6 shown protruding structure, the imaging range can be reduced. In this way, it can be selected according to the specific usage situation, and no specific limitation is made here.

[0105] In some embodiments, please continue to refer to Figures 1 to 6 , the thickness of the first plate body 111 is 0.1 mm to 3 mm; and / or, the thickness of the reflective film layer 112 is 0.01 μm to 20 μm; and / or, the thickness of the second plate body 121 is 0.1 mm to 6 mm; and / or, the thickness of the first semi-reflective film layer 122 is 0.1 μm to 20 μm; and / or, the thickness of the bonding layer 130 is 0.01 mm to 0.5 mm.

[0106] Exemplarily, the thickness of the first plate body 111 can be 0.1 mm, 0.5 mm, 1 mm, 1.5 mm, 1.8 mm, 2 mm, 2.5 mm or 3 mm, the thickness of the reflective film layer 112 can be 0.01 μm, 1 μm, 1.5 μm, 2 μm, 5 μm, 6 μm, 8 μm, 11 μm, 13 μm, 17 μm or 20 μm, the thickness of the second plate body 121 can be 0.1 mm, 0.5 mm, 1 mm, 1.5 mm, 2 mm, 4 mm, 5 mm or 6 mm, the thickness of the first semi-reflective film layer 122 can be 0.01 μm, 1 μm, 1.5 μm, 2 μm, 5 μm, 6 μm, 8 μm, 11 μm, 13 μm, 17 μm or 20 μm, and the thickness of the bonding layer 130 can be 0.01 mm, 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm or 0.5 mm.

[0107] It should be noted that the thicknesses of the second semi-reflective film layer 113 and the third semi-reflective film layer 123 shown in some of the foregoing embodiments can be understood with reference to the thickness of the first semi-reflective film layer 122, and will not be elaborated herein. The thicknesses of the first semi-reflective film layer 122, the second semi-reflective film layer 113 and the third semi-reflective film layer 123 can be the same or different.

[0108] In this way, by controlling the thicknesses of the first plate body 111 and the second plate body 121, it is beneficial to facilitate the passage of light and reduce the manufacturing cost while having certain support performance. By controlling the thickness of the reflective film layer 112, it is beneficial to reduce the manufacturing cost while reflecting light. By controlling the thickness of the first semi-reflective film layer 122, it is beneficial to reduce the manufacturing cost while having a certain light transmission effect. It can be set according to specific usage requirements and will not be specifically limited herein.

[0109] In some embodiments, please continue to refer to Figures 1 to 5 , the material of the reflective film layer 112 includes a metal; and / or, the material of the first semi-reflective film layer 122 includes a third high refractive index material and / or a third low refractive index material; the third high refractive index material is selected from one of titanium oxide, tantalum pentoxide, niobium oxide, cerium oxide, silicon, zinc selenide, zinc sulfide, silicon hydride, silicon nitride and lead fluoride, and the third low refractive index material is selected from one of silicon oxide, aluminum oxide, tungsten oxide, magnesium oxide, yttrium oxide, cerium fluoride, magnesium fluoride and sodium aluminum fluoride; and / or, the material of the bonding layer 130 includes one of OCA optical glue and OCR optical glue. Exemplarily, the material of the reflective film layer 112 includes one of aluminum, titanium, silver and chromium.

[0110] It should be noted that the terms "third low refractive index material" and "third high refractive index material" can be understood with reference to the terms "first low refractive index material" and "first high refractive index material", and will not be elaborated herein.

[0111] When the material of the first half-reflecting film layer 122 includes a second high refractive index material and a second low refractive index material, the first half-reflecting film layer 122 can be formed by laminating at least one second high refractive index material layer and at least one second low refractive index material layer.

[0112] In this way, the materials of the reflecting film layer 112 and the first half-reflecting film layer 122 can be flexibly selected to take into account the manufacturing cost while having a certain reflection ability. The material of the bonding layer 130 can be flexibly selected to have a certain adhesion while having a certain optical property (such as transmittance). It can be set according to specific usage requirements and is not specifically limited here.

[0113] It should be noted that the selection of the materials of the first half-reflecting film layer 122, the second half-reflecting film layer 113, and the third half-reflecting film layer 123 can be selected in the manner shown in some of the above embodiments to achieve the control of the wavelength range of the required light, and is not specifically limited here.

[0114] Based on the same inventive concept, an embodiment of the present application also provides a display device, including the optical lens 100 in any of the above embodiments.

[0115] The display device also has the same advantages as those of the above optical lens 100, and is not specifically limited here.

[0116] In some embodiments, the display device includes a plurality of optical lenses 100, and all the optical lenses 100 are configured to be arranged in a preset path. The preset path refers to the optical path corresponding in the corresponding optical system, and can be set according to the specific usage requirements of the optical system and in cooperation with the remaining components in the optical system, and is not specifically limited here.

[0117] The structures of the respective optical lenses 100 can be the same or different. For example, all the optical lenses 100 can all adopt Figure 1 and Figure 2 the structures shown, and can all adopt Figure 3 the structures shown, and so on. For another example, it can be that some of the optical lenses 100 adopt Figure 1 and Figure 2 the structures shown, and another part of the optical lenses 100 adopt structures such as Figure 3 or Figure 4 shown. The structures of the respective optical lenses 100 can be correspondingly configured in combination with the situations shown in some of the above embodiments and the usage requirements, and are not specifically limited here.

[0118] In some embodiments, among all the optical lenses 100, there are optical lenses 100 protruding along a first preset direction, and optical lenses 100 protruding along a second preset direction. The first preset direction is the direction from the first plate 111 to the second plate 121, and the second preset direction is the direction from the second plate 121 to the first plate 111; the first preset direction, the second preset direction, and the first direction F1 are parallel to each other. That is, for example, Figures 1 to 4 the optical lenses 100 shown Figure 5 and Figure 6 the optical lenses 100 shown can be combined to form the required display device.

[0119] It can be understood that the first preset direction and the second preset direction are the implementable ways of the target direction shown in the foregoing some embodiments.

[0120] In this way, by using various embodiments of the optical lenses 100 shown above, different display devices can be flexibly obtained to meet the usage requirements in different scenarios.

[0121] Based on the same inventive concept, an embodiment of the present application further provides an electronic device including the display device in any of the above embodiments.

[0122] The electronic device also has the advantages possessed by the above display device, and no specific limitations are made here.

[0123] In some embodiments, the electronic device is a head-up display device. Of course, the electronic device can also be other devices that need to use the above display device. The electronic device can be applied to various display fields, such as the shooting field, the household lighting field, the medical lighting field, the decoration field, the automotive field, the transportation field, etc. The above applications are only several applications exemplified in this embodiment. It should be understood that the applications of the above optical lenses 100, display devices, and electronic devices are not limited to the several fields exemplified above.

[0124] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combinations of these technical features do not conflict, they should all be considered as the scope recorded in this specification.

[0125] The above embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An optical lens, characterized in that: include: A first substrate, comprising a first plate body and a reflective film layer, wherein the first plate body has a first surface and a second surface arranged opposite to each other along a first direction, and the reflective film layer is arranged on the first surface or the second surface; A second substrate, comprising a second plate body and a first semi-reflective film layer, wherein the second plate body has a third surface and a fourth surface arranged opposite to each other along the first direction, and the first semi-reflective film layer is arranged on the third surface or the fourth surface; and The bonding layer is bonded between the first substrate and the second substrate along the first direction.

2. The optical lens according to claim 1, characterized in that: The second surface of the first plate body and the third surface of the second plate body face each other and are arranged opposite to each other along the first direction; The reflective film layer is disposed on the second surface.

3. The optical lens according to claim 2, characterized in that: The first plate is provided with a grating structure.

4. The optical lens according to claim 1, characterized in that: The second surface of the first plate body and the third surface of the second plate body face each other and are arranged opposite to each other along the first direction; The reflective film layer is disposed on the first surface, and the first substrate further comprises a second semi-reflective film layer disposed on the second surface; One of the first semi-reflective film layer and the second semi-reflective film layer is configured to be able to transmit light with a wavelength greater than a first preset wavelength, and the other is configured to be able to transmit light with a wavelength less than a second preset wavelength; The first preset wavelength is shorter than the second preset wavelength.

5. The optical lens according to claim 4, characterized in that: The material of the second semi-reflective film layer includes a first high refractive index material and / or a first low refractive index material; The first high refractive index material is selected from one of titanium oxide, tantalum pentoxide, niobium oxide, cerium oxide, silicon, zinc selenide, zinc sulfide, silicon hydride, silicon nitride, and lead fluoride, and the first low refractive index material is selected from one of silicon oxide, aluminum oxide, tungsten oxide, magnesium oxide, yttrium oxide, cerium fluoride, magnesium fluoride, and sodium aluminum fluoride.

6. The optical lens according to any one of claims 1 to 5, characterized in that: The second surface of the first plate body and the third surface of the second plate body face each other and are arranged opposite to each other along the first direction; The first semi-reflective film layer is disposed on the fourth surface.

7. The optical lens according to claim 6, characterized in that: The second substrate further includes a third semi-reflective film layer disposed on the third surface; One of the first semi-reflective film layer and the third semi-reflective film layer is configured to be able to transmit light with a wavelength smaller than a third preset wavelength, and the other is configured to be able to transmit light with a wavelength greater than a fourth preset wavelength; the third preset wavelength is smaller than the fourth preset wavelength.

8. The optical lens according to claim 7, characterized in that: The material of the third semi-reflective film layer includes a second high refractive index material and / or a second low refractive index material; The second high refractive index material is selected from one of titanium oxide, tantalum pentoxide, niobium oxide, cerium oxide, silicon, zinc selenide, zinc sulfide, silicon hydride, silicon nitride, and lead fluoride, and the second low refractive index material is selected from one of silicon oxide, aluminum oxide, tungsten oxide, magnesium oxide, yttrium oxide, cerium fluoride, magnesium fluoride, and sodium aluminum fluoride.

9. The optical lens according to any one of claims 1 to 5, characterized in that: At least one of the first plate and the second plate is made of glass.

10. The optical lens according to claim 9, characterized in that: The material of one of the first plate body and the second plate body includes glass, and the material of the other plate body includes one of organic glass and thermoplastic plastic.

11. The optical lens according to any one of claims 1 to 5, characterized in that: The first plate body and the second plate body are configured as lenses with the same target surface type; the target surface type includes one of a spherical surface, a cylindrical surface, and a free-form surface.

12. The optical lens according to any one of claims 1 to 5, characterized in that: The first plate body and the second plate body are configured to be convexly arranged toward the same target direction; The target direction is a direction from the first plate to the second plate; or the target direction is a direction from the second plate to the first plate.

13. The optical lens according to any one of claims 1 to 5, characterized in that: The thickness of the first plate is 0.1 mm to 3 mm; and / or The thickness of the reflective film layer is 0.01 μm to 20 μm; and / or The thickness of the second plate is 0.1 mm to 6 mm; and / or The thickness of the first semi-reflective film layer is 0.1 μm to 20 μm; and / or The thickness of the bonding layer is 0.01 mm to 0.5 mm.

14. The optical lens according to any one of claims 1 to 5, characterized in that: The material of the reflective film layer includes metal; and / or The material of the first semi-reflective film layer includes a third high refractive index material and / or a third low refractive index material; the third high refractive index material is selected from one of titanium oxide, tantalum pentoxide, niobium oxide, cerium oxide, silicon, zinc selenide, zinc sulfide, silicon hydride, silicon nitride and lead fluoride, and the third low refractive index material is selected from one of silicon oxide, aluminum oxide, tungsten oxide, magnesium oxide, yttrium oxide, cerium fluoride, magnesium fluoride and sodium aluminum fluoride; and / or The material of the bonding layer includes one of OCA optical glue and OCR optical glue.

15. A display device, characterized in that: Comprising an optical lens as described in any one of claims 1-14.

16. The display device according to claim 15, characterized in that: The display device includes a plurality of the optical lenses, and all of the optical lenses are configured to be arranged in a preset path.

17. The display device according to claim 16, characterized in that: Among all the optical lenses, there are optical lenses that are convexly arranged along a first preset direction, and optical lenses that are convexly arranged along a second preset direction; The first preset direction is the direction from the first plate to the second plate, and the second preset direction is the direction from the second plate to the first plate; the first preset direction, the second preset direction and the first direction are parallel to each other.

18. An electronic device, characterized in that: Comprising a display device as described in any one of claims 15-17.

19. The electronic device according to claim 18, characterized in that: The electronic device is a head-up display device.

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