Optical assembly and display device

Abstract

The embodiment of the invention provides an optical assembly and a display device. An optical assembly includes: a first substrate including a first edge extending in a first direction; the reflection columns are arranged in an array and located on one side of the first substrate, the reflection columns at least comprise first reflection columns and second reflection columns, the orthographic projection of the first reflection columns on the first substrate is in a first pattern, and the first pattern comprises a first straight edge close to the first edge; the orthographic projection of the second reflection column on the first substrate is in a second pattern, and the second pattern comprises a second straight edge close to the first edge; the first straight edge intersects with the second straight edge. According to the embodiment of the invention, the display uniformity can be improved.

Description

Technical Field

[0001] This application relates to the field of display technologies, and particularly to an optical component and a display device. Background Art

[0002] With the development of display technologies, the display technology of suspended imaging has become increasingly mature, making the application of the suspended imaging technology more and more extensive. For example, the suspended imaging technology can be applied to the field of vehicle-mounted displays.

[0003] In common suspended imaging technologies, a reflector can be used to reflect the light provided by a light source multiple times, so that the light path of the light provided by the light source is changed after multiple reflections, and the light converges in the air to form a projection real image that is consistent with the display picture provided by the light source. Summary of the Invention

[0004] Embodiments of this application provide an optical component and a display device, which can improve display uniformity.

[0005] In a first aspect, an embodiment of this application provides an optical component, including: a first substrate, including a first edge extending in a first direction; a plurality of reflecting columns arranged in an array, located on one side of the first substrate, the reflecting columns at least including a first reflecting column and a second reflecting column, the orthographic projection of the first reflecting column on the first substrate presents a first pattern, the first pattern including a first straight edge close to the first edge; the orthographic projection of the second reflecting column on the first substrate presents a second pattern, the second pattern including a second straight edge close to the first edge; the first straight edge intersects with the second straight edge.

[0006] In a second aspect, an embodiment of this application provides a display device, including the optical component described in the first aspect embodiment.

[0007] According to the optical component provided by the embodiments of this application, the arrangement of the plurality of reflecting columns is not a single arrangement in the same direction, but a part of the reflecting columns are rotated by a certain angle. The relative positions of the first reflecting column and the second reflecting column are different, that is, the second reflecting column is rotated by a certain angle relative to the first reflecting column, which helps to make the light reflected by the second reflecting column for incident light at a small angle or a large angle form retroreflection relative to the incident light, thereby increasing the display brightness of the suspended image corresponding to the incident light at a small angle or a large angle, increasing the overall viewing angle, and improving the uniformity of the overall display brightness. Description of the Drawings

[0008] By reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, other features, objects, and advantages of this application will become more obvious, wherein the same or similar reference numerals represent the same or similar features, and the drawings are not drawn to actual scale.

[0009] Figure 1Shows a schematic structural diagram of an optical component in the related art;

[0010] Figure 2 Shows another schematic structural diagram of an optical component in the related art;

[0011] Figure 3 Shows a schematic optical path diagram of an optical component in the related art;

[0012] Figure 4 Shows a schematic curve diagram of the incident angle and retroreflective brightness in the related art;

[0013] Figure 5 Shows a schematic three-dimensional structural diagram of the optical component provided by the embodiment of the present application;

[0014] Figure 6 Shows Figure 5 A schematic side view structure diagram of;

[0015] Figure 7 Shows Figure 5 A schematic top view structure diagram of;

[0016] Figure 8 Shows Figure 5 A schematic optical path diagram of;

[0017] Figure 9 Shows Figure 7 A schematic optical path diagram of;

[0018] Figure 10 Shows Figure 5 A schematic curve diagram of the corresponding incident angle and retroreflective brightness;

[0019] Figure 11 Shows another schematic top view structure diagram of the optical component provided by the embodiment of the present application;

[0020] Figure 12 Shows yet another schematic top view structure diagram of the optical component provided by the embodiment of the present application;

[0021] Figure 13 Shows yet another schematic top view structure diagram of the optical component provided by the embodiment of the present application;

[0022] Figure 14 Shows yet another schematic top view structure diagram of the optical component provided by the embodiment of the present application;

[0023] Figure 15 Shows yet another schematic top view structure diagram of the optical component provided by the embodiment of the present application;

[0024] Figure 16 Shows yet another schematic top view structure diagram of the optical component provided by the embodiment of the present application;

[0025] Figure 17 Shows another top - view structural schematic diagram of the optical component provided by the embodiment of the present application;

[0026] Figure 18 Shows another top - view structural schematic diagram of the optical component provided by the embodiment of the present application;

[0027] Figure 19 Shows another top - view structural schematic diagram of the optical component provided by the embodiment of the present application;

[0028] Figure 20 Shows another top - view structural schematic diagram of the optical component provided by the embodiment of the present application;

[0029] Figure 21 Shows a structural schematic diagram of a display device provided by the embodiment of the present application. Detailed implementation manners

[0030] The features and exemplary embodiments of various aspects of the present application will be described in detail below. To make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without some of these specific details. The following description of the embodiments is only provided to provide a better understanding of the present application by showing examples of the present application.

[0031] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non - exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, the elements defined by the statement "including..." do not exclude the existence of additional identical elements in the process, method, article or device including the said elements.

[0032] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "above" or "over" another layer or another region, it may mean directly above the other layer or another region, or there may be other layers or regions between it and the other layer or another region. And if the component is flipped, this layer or region will be "below" or "beneath" the other layer or another region.

[0033] It should be understood that the term "and / or" used herein is merely a description of the associated relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this text generally indicates that the associated objects before and after are in an "or" relationship.

[0034] Without departing from the spirit or scope of the present application, various modifications and changes can be made in the present application, which will be obvious to those skilled in the art. Therefore, the present application is intended to cover the modifications and changes of the present application that fall within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in the present application can be combined with each other without conflict.

[0035] The optical components in the suspension imaging system of the related art adopt Figure 1 or Figure 2 the structure shown, such as Figure 1 shown, and an array of dihedral angle mirrors can be formed by multiple arrays of reflective columns 20' arranged as shown in Figure 1 to reflect the light provided by the light source multiple times to achieve suspension imaging. As shown in Figure 2 shown, a dihedral angle mirror is formed by using two layers of mutually orthogonal optical waveguides to reflect the light provided by the light source multiple times to achieve suspension imaging.

[0036] However, the inventor found through research that Figure 1 and Figure 2 the optical devices with the structures shown have the problem of a small visible range of imaging. Please refer to Figure 3 , Figure 3 which simply shows Figure 1 and Figure 2 a schematic diagram of a corresponding light path. In Figure 3 , after the incident light ray L1' is incident on the dihedral angle mirror shown in Figure 1 or Figure 2 , the light ray forms an outgoing light ray L2' after being reflected twice by the dihedral angle mirror, and the outgoing light ray L2' cannot form a retroreflection relative to the incident light ray L1'.

[0037] As shown in Figure 4 , for the one using Figure 1Or Figure 2 For the optical device shown, when the incident angle of the incident light is 45° ± 20°, the normalized retroreflective brightness is relatively large, that is, the retroreflective effect is good; while for small-angle or large-angle incident light (such as 0 to 20° or 70 to 90°), the normalized retroreflective brightness is small, that is, the retroreflective effect is poor, resulting in a small viewing angle, and thus there are differences in the imaging effects at different incident angles.

[0038] In view of the above technical problems, the embodiments of the present application provide an optical component and a display device. The embodiments of the optical component and the display device will be described below with reference to the accompanying drawings.

[0039] Please refer to Figures 5 to 7 , the optical component 100 provided by the embodiments of the present application includes a first substrate 11 and a plurality of reflecting columns 20.

[0040] The first substrate 11 includes a first edge 101 extending along a first direction X. The first substrate 11 is light-transmissive. The first substrate 11 may include a transparent material. For example, the first substrate 11 includes, but is not limited to, glass or transparent plastic.

[0041] The plurality of reflecting columns 20 are arranged in an array in the intersecting first direction X and second direction Y. The plurality of reflecting columns 20 are provided on one side of the first substrate 11. The first substrate 11 includes an upper surface and a lower surface opposite to each other. The reflecting columns 20 are located on the upper surface of the first substrate 11, and the reflecting columns 20 extend in a third direction Z, and the third direction Z is perpendicular to the first direction X and the second direction Y.

[0042] An external light source is provided on one side of the lower surface of the first substrate 11. The light provided by the external light source is incident on the lower surface of the first substrate 11, and then passes through the first substrate 11 and is incident on the reflecting columns 20. The reflecting columns 20 can reflect light. Specifically, the reflecting columns 20 include an upper surface, a lower surface, and a plurality of side surfaces. The upper surface and the lower surface of the reflecting columns 20 are light-transmissive, and the side surfaces of the reflecting columns 20 can emit light. Specifically, the inner side of the side surface of the reflecting columns 20 can reflect light.

[0043] The reflecting columns 20 at least include a first reflecting column 21 and a second reflecting column 22. The orthographic projection of the first reflecting column 21 on the first substrate forms a first pattern 21a, and the orthographic projection of the second reflecting column 22 on the first substrate forms a second pattern 22b. The first pattern 21a includes a first straight edge a1 close to the first edge 101, and the second pattern 22b includes a second straight edge b2 close to the first edge 101. The first straight edge a1 and the second straight edge a2 intersect.

[0044] The first straight edge a1 is a straight edge in the outer contour of the first pattern 21a, and the distance between the center of the first straight edge a1 and the first edge 101 is less than or equal to the distances between the centers of the other edges in the first pattern 21a and the first edge 101. The second straight edge b2 is a straight edge in the outer contour of the second pattern 22b, and the distance between the center of the second straight edge b2 and the first edge 101 is less than or equal to the distances between the centers of the other edges in the second pattern 22b and the first edge 101.

[0045] It can be understood that in the embodiments of the present application, the arrangement of the multiple reflection columns 20 is not a single arrangement in the same direction as Figure 1 shown, but a part of the reflection columns 20 are rotated by a certain angle, that is, the second reflection column 22 is rotated by a certain angle relative to the first reflection column 21, so as to compensate for the viewing angle of imaging of small-angle or large-angle incident light, thereby improving the uniformity of the overall display brightness.

[0046] Exemplarily, taking the first reflection column 21 and the second reflection column 22 as quadrangular prisms as an example, please refer to Figure 8 and Figure 9 , the incident light L11 enters the first reflection column 21 from the lower surface s11 of the first reflection column 21. After the incident light L11 is reflected by one side surface of the first reflection column 21, the light L12 is formed. After the light L12 is reflected by the other side surface of the first reflection column 21, the outgoing light L13 is formed. The outgoing light L13 is emitted from the upper surface s12 of the first reflection column 21, and the outgoing light L13 is used to generate the required floating image. The outgoing light L13 does not form retroreflection relative to the incident light L11.

[0047] The second reflection column 22 is rotated by a certain angle relative to the first reflection column 21. In this way, for the incident light at the same angle, the transmission paths of the light in the second reflection column 22 and the first reflection column 21 will change. Specifically, the incident light L21 enters the second reflection column 22 from the lower surface s21 of the second reflection column 22. After the incident light L21 is reflected by one side surface of the second reflection column 22, the light L22 is formed. After the light L22 is reflected by the other side surface of the second reflection column 22, the outgoing light L23 is formed. The outgoing light L23 is emitted from the upper surface s22 of the second reflection column 22, and the outgoing light L23 is used to generate the required floating image. The outgoing light L23 can form retroreflection relative to the incident light L21.

[0048] Exemplarily, taking the first reflection column 21 and the second reflection column 22 as quadrangular prisms, and the second reflection column 22 is rotated by 45° relative to the first reflection column 21 as an example, please refer to Figure 10, since the second reflecting column 22 is rotated by a certain angle relative to the first reflecting column 21, this creates conditions for the outgoing light after being reflected by the second reflecting column 22 to form retroreflection for the incident light, thereby increasing the normalized retroreflection brightness corresponding to the incident light at a small angle or a large angle, thus increasing the display brightness of the floating image corresponding to the incident light at a small angle or a large angle, increasing the overall viewing angle, and improving the uniformity of the overall display brightness. Among them, the normalized retroreflection brightness is the ratio of the retroreflection brightness to the overall maximum brightness, that is, the normalized retroreflection brightness is the ratio of the brightness corresponding to the retroreflection angle to the maximum brightness of all angles.

[0049] According to the optical component provided by the embodiment of the present application, the arrangement of the plurality of reflecting columns 20 is not a single arrangement in the same direction, but a part of the reflecting columns 20 is rotated by a certain angle, and the relative positions of the first reflecting column 21 and the second reflecting column 22 are different, that is, the second reflecting column 22 is rotated by a certain angle relative to the first reflecting column 21, which helps to make the light after the incident light at a small angle or a large angle is reflected by the second reflecting column 22 form retroreflection relative to the incident light, thereby increasing the display brightness of the floating image corresponding to the incident light at a small angle or a large angle, increasing the overall viewing angle, and improving the uniformity of the overall display brightness.

[0050] In some embodiments, please refer to Figures 5 to 8 , the first reflecting column 21 includes a first upper surface s12 and a first lower surface s11, and the first upper surface s12 and the first lower surface s11 are parallel. The second reflecting column 22 includes a second upper surface s22 and a second lower surface s21, and the second upper surface s22 and the second lower surface s21 are parallel.

[0051] Exemplarily, the first upper surface s12 of the first reflecting column 21 and the second upper surface s22 of the second reflecting column 22 are parallel, and the first lower surface s11 of the first reflecting column 21 and the second lower surface s21 of the second reflecting column 22 are parallel.

[0052] Exemplarily, the heights of the first reflecting column 21 and the second reflecting column 22 in the third direction Z are the same.

[0053] The first pattern 21a includes a third straight edge a3 perpendicular to the first straight edge a1, and the second pattern 22b includes a fourth straight edge b4 perpendicular to the second straight edge b2.

[0054] It is understandable that the side where the first straight edge a1 is located and the side where the third straight edge a3 is located of the first reflecting column 21 are two mutually perpendicular sides of the first reflecting column 21, and the side where the first straight edge a1 is located and the side where the third straight edge a3 is located form a dihedral angle mirror that is mutually perpendicular. Similarly, the side where the second straight edge b2 is located and the side where the fourth straight edge b4 is located of the second reflecting column 22 are two mutually perpendicular sides of the second reflecting column 22, and the side where the second straight edge b2 is located and the side where the fourth straight edge b4 is located form a dihedral angle mirror that is mutually perpendicular.

[0055] The relative positional relationship between the side where the first straight edge a1 is located and the side where the third straight edge a3 is located in the first reflecting column 21 and the side where the second straight edge b2 is located and the side where the fourth straight edge b4 is located in the second reflecting column 22 is different. For example, the side where the second straight edge b2 is located in the second reflecting column 22 is rotated by an angle α relative to the side where the first straight edge a1 is located in the first reflecting column 21, and the side where the fourth straight edge b4 is located in the second reflecting column 22 is also rotated by an angle α relative to the side where the third straight edge a3 is located in the first reflecting column 21.

[0056] In this embodiment, the first reflecting column 21 includes two mutually perpendicular sides, and the second reflecting column 22 includes two mutually perpendicular sides. In this way, both the first reflecting column 21 and the second reflecting column 22 form a dihedral angle mirror that is mutually perpendicular, thereby realizing suspended imaging. In addition, the relative positional relationship between the two mutually perpendicular sides in the first reflecting column 21 and the two mutually perpendicular sides in the second reflecting column 22 is different, which can make the angles of the finally emitted light different after the light with the same incident angle is reflected by the first reflecting column 21 and the second reflecting column 22. For example, the light emitted after the incident light with a small angle or a large angle is reflected by the second reflecting column 22 can form a retroreflection, thereby increasing the viewing angle and improving the display uniformity.

[0057] In some embodiments, the shape of the first reflecting column 21 is the same as the shape of the second reflecting column 22. "The same shape" in this application includes: the shape of the orthographic projection of the first reflecting column 21 on the first substrate 11 is the same as the shape of the orthographic projection of the second reflecting column 22 on the first substrate 11. In other words, the shape of the first pattern 21a is the same as the shape of the second pattern 22b.

[0058] In this embodiment, when the shape of the first reflecting column 21 is the same as the shape of the second reflecting column 22, it can make the light emitted by the optical component as a whole more uniform, thereby further improving the display uniformity.

[0059] Exemplarily, when the shape of the first reflecting post 21 is the same as that of the second reflecting post 22, the size of the first reflecting post 21 is the same as that of the second reflecting post 22. For example, the height of the first reflecting post 21 is the same as that of the second reflecting post 22; the length of the first straight side a1 of the first reflecting post 21 is the same as the length of the second straight side b2 of the second reflecting post 22; the length of the third straight side a3 of the first reflecting post 21 is the same as the length of the fourth straight side b4 of the second reflecting post 22.

[0060] As an example, as Figure 5 shown, the shapes of both the first reflecting post 21 and the second reflecting post 22 are quadrangular prisms.

[0061] It can be understood that the first reflecting post 21 includes four side faces, and any two adjacent side faces are perpendicular to each other. In this way, all four side faces of the first reflecting post 21 can reflect light, thus avoiding restricting the angle of the outgoing light. Similarly, the second reflecting post 22 includes four side faces, and any two adjacent side faces are perpendicular to each other. In this way, all four side faces of the second reflecting post 22 can also reflect light, thus avoiding restricting the angle of the outgoing light.

[0062] In some embodiments, when the shape of the first reflecting post 21 is a quadrangular prism, the lengths of the first straight side a1 and the third straight side a3 are the same. That is to say, the first upper surface s12 and the first lower surface s11 of the first reflecting post 21 are squares. In this way, after the first reflecting post 21 rotates 90° around its central axis, it can completely coincide with its state before rotation, making the intensity of the outgoing light more uniform.

[0063] When the lengths of the first straight side a1 and the third straight side a3 are the same, please refer to Figure 5 and Figure 7 , the first pattern 21a is a square. The first pattern 21a includes two diagonals, and the lengths of the two diagonals of the first pattern 21a are the same. For example, the diagonal length of the first pattern 21a is x1, and the height of the first reflecting post 21 is z1. The ratio of z1 to x1 / 2 is greater than or equal to 2 and less than or equal to 5. Here, x1 / 2 represents half of x1.

[0064] Exemplarily, when the shape of the second reflecting post 22 is a quadrangular prism, the lengths of the second straight side b2 and the fourth straight side b4 are the same. That is to say, the second upper surface s22 and the second lower surface s21 of the second reflecting post 22 are squares. In this way, after the second reflecting post 22 rotates 90° around its central axis, it can completely coincide with its state before rotation, making the intensity of the outgoing light more uniform.

[0065] When the lengths of the second straight side b2 and the fourth straight side b4 are the same, please refer to Figure 5 andFigure 7 The second pattern 22b is a square. The second pattern 22b includes two diagonals, and the lengths of the two diagonals of the second pattern 22b are the same. For example, the diagonal length of the second pattern 22b is x2, and the height of the second reflecting column 22 is z2. The ratio of z2 to x2 / 2 is greater than or equal to 2 and less than or equal to 5. Here, x2 / 2 represents half of x2.

[0066] Light needs a certain propagation distance inside the second reflecting column 22. Through extensive research, the inventor found that when z2 and x2 satisfy the above relationship, the light emitted from the second reflecting column 22 can form a specific retroreflective angle, thus better achieving the uniformity of display brightness.

[0067] In some embodiments, x1 / 2 is greater than or equal to 20 μm (micrometers) and less than or equal to 100 μm (micrometers). x2 / 2 is greater than or equal to 20 μm (micrometers) and less than or equal to 100 μm (micrometers).

[0068] Exemplarily, x1 = x2 and z1 = z2.

[0069] Exemplarily, taking the first direction X as the row direction and the second direction Y as the column direction as an example, as Figure 7 shown, the optical component includes multiple rows and multiple columns of first reflecting columns 21 and multiple rows and multiple columns of second reflecting columns 22. The spacing between adjacent first reflecting columns 21 in the same row can be approximately x1 / 2 + 5 (μm), and the spacing between adjacent first reflecting columns 21 in the same column can be approximately x1 / 2 + 5 (μm). The spacing between adjacent second reflecting columns 22 in the same row can be approximately x1 / 2 + 5 (μm), and the spacing between adjacent second reflecting columns 22 in the same column can be approximately x1 / 2 + 5 (μm).

[0070] The above examples introduce some examples where the shapes of the first reflecting column 21 and the second reflecting column 22 are the same and are both quadrangular prisms.

[0071] In other examples, when the shapes of the first reflecting column 21 and the second reflecting column 22 are the same, the shapes of the first reflecting column 21 and the second reflecting column 22 can also be other shapes besides quadrangular prisms.

[0072] In some examples, such as Figure 11 or Figure 12As shown, the first pattern 21a includes a third straight edge a3 perpendicular to the first straight edge a1, the second pattern 22b includes a fourth straight edge b4 perpendicular to the second straight edge b2, the shapes of the first reflecting column 21 and the second reflecting column 22 are the same, the first pattern 21a includes a first connecting edge a5, and the first connecting edge a5 is connected to the first straight edge a1 and the third straight edge a3; the second pattern 22b includes a second connecting edge b6, and the second connecting edge b6 is connected to the second straight edge b2 and the fourth straight edge b4.

[0073] In this example, the first upper surface s12 and the first lower surface s11 of the first reflecting column 21 are mutually parallel triangles, and the second upper surface s22 and the second lower surface s21 of the second reflecting column 22 are mutually parallel triangles. That is to say, both the first reflecting column 21 and the second reflecting column 22 are triangular prisms.

[0074] The side surface to which the first straight edge a1 belongs and the side surface to which the third straight edge a3 belongs are two mutually perpendicular side surfaces of the first reflecting column 21, and the side surface to which the first straight edge a1 belongs and the side surface to which the third straight edge a3 belongs form a dihedral angle mirror that is mutually perpendicular. Even if the side surface to which the first connecting edge a5 belongs is not perpendicular to the side surface to which the first straight edge a1 belongs and the side surface to which the third straight edge a3 belongs, it will not affect the function of the first reflecting column to achieve suspended imaging. Similarly, the side surface to which the second straight edge b2 belongs and the side surface to which the fourth straight edge b4 belongs are two mutually perpendicular side surfaces of the second reflecting column 22, and the side surface to which the second straight edge b2 belongs and the side surface to which the fourth straight edge b4 belongs form a dihedral angle mirror that is mutually perpendicular. Even if the second connecting edge b6 is not perpendicular to the side surface to which the second straight edge b2 belongs and the side surface to which the fourth straight edge b4 belongs, it will not affect the function of the second reflecting column to achieve suspended imaging.

[0075] As an example, as Figure 11 shown, both the first connecting edge a5 and the second connecting edge b6 are straight edges.

[0076] As another example, as Figure 12 shown, both the first connecting edge a5 and the second connecting edge b6 are outwardly convex arc edges.

[0077] The above examples introduce some examples where the first straight edge a1 is perpendicular to the third straight edge a3, the second straight edge b2 and the fourth straight edge b4 are perpendicular, and the shapes of the first reflecting column 21 and the second reflecting column 22 are the same.

[0078] In some embodiments, when the first straight edge a1 is perpendicular to the third straight edge a3, the second straight edge b2 is perpendicular to the fourth straight edge b4, and the shapes of the first reflecting column 21 and the second reflecting column 22 are the same, the rotation angle of the second reflecting column 22 relative to the first reflecting column 21 is greater than 0° and less than 90°.

[0079] It is understandable that when the relative positional relationship between the first reflecting column 21 and the second reflecting column 22 is the same, the first straight edge a1 is parallel to the second straight edge b2, and the third straight edge a3 is parallel to the fourth straight edge b4. In this embodiment, however, the relative positional relationship between the first reflecting column 21 and the second reflecting column 22 is different. The second reflecting column 22 is rotated by a certain angle relative to the first reflecting column 21, the first straight edge a1 intersects with the second straight edge b2, and the third straight edge a3 intersects with the fourth straight edge b4. The included angle between the first straight edge a1 and the second straight edge b2 is greater than 0° and less than 90°, and the included angle between the third straight edge a3 and the fourth straight edge b4 is greater than 0° and less than 90°. The included angle between the first straight edge a1 and the second straight edge b2 is equal to the included angle between the third straight edge a3 and the fourth straight edge b4.

[0080] As an example, the rotation angle of the second reflecting column 22 relative to the first reflecting column 21 is 45°. The included angle between the first straight edge a1 and the second straight edge b2 is 45°, and the included angle between the third straight edge a3 and the fourth straight edge b4 is also 45°.

[0081] For example, both the first reflecting column 21 and the second reflecting column 22 are quadrangular prisms, and the upper and lower surfaces of the first reflecting column 21 and the second reflecting column 22 are both squares. After the first reflecting column 21 is rotated 90° around its central axis, it can completely coincide with its state before rotation, and the same applies to the second reflecting column. It is equivalent that 90° is a rotation period. As Figure 4 shown, when the relative positions of the respective reflecting columns are the same, the retroreflective brightness corresponding to the incident angles of 0° and 90° is the lowest, and the retroreflective brightness corresponding to the incident angle of 45° is the highest. In this embodiment, after the second reflecting column 22 is rotated 45° relative to the first reflecting column 21, for Figure 10 the retroreflective brightness corresponding to the incident angles of 0° and 90° in Figure 4 becomes equivalent to the retroreflective brightness corresponding to the incident angle of 45° in

[0082] Thereby, the light intensity corresponding to the incident light at a small angle or a large angle is enhanced to improve the display uniformity corresponding to different incident angles.

[0083] Of course, in other examples, the rotation angle of the second reflecting column 22 relative to the first reflecting column 21 can also be set to other values. Figure 13 or Figure 14 shown, the shape of the first reflecting column 21 is different from the shape of the second reflecting column 22.

[0084] "Same shape" here includes: the shape of the orthographic projection of the first reflecting column 21 on the first substrate 11 is different from the shape of the orthographic projection of the second reflecting column 22 on the first substrate 11. In other words, the shapes of the first pattern 21a and the second pattern 22b are different.

[0085] In addition, the shape of the first reflecting post 21 is different from the shape of the second reflecting post 22, and the first straight edge a1 is perpendicular to the third straight edge a3, and the second straight edge b2 is perpendicular to the fourth straight edge b4.

[0086] In this embodiment, when the shape of the first reflecting post 21 is different from the shape of the second reflecting post 22, the optical path of light in different reflecting posts can be adjusted more flexibly according to different requirements, so as to flexibly meet different requirements.

[0087] In some embodiments, such as Figure 13 or Figure 14 as shown, the shape of the first reflecting post 21 is different from the shape of the second reflecting post 22, and the shape of the first reflecting post 21 is a quadrangular prism, and the second pattern 22b includes a second connecting edge b6, and the second connecting edge b6 is connected to the second straight edge b2 and the fourth straight edge b4.

[0088] Here, the shape of the first reflecting post 21 is a quadrangular prism, and the shape of the second reflecting post 22 is a triangular prism.

[0089] Exemplarily, when the shape of the first reflecting post 21 is a quadrangular prism, the upper and lower surfaces of the first reflecting post 21 are right-angled quadrilaterals. For example, the upper and lower surfaces of the first reflecting post 21 are squares.

[0090] Exemplarily, as Figure 13 shown, both the first connecting edge a5 and the second connecting edge b6 are straight edges. Or, as Figure 14 shown, both the first connecting edge a5 and the second connecting edge b6 are outwardly convex arc edges.

[0091] In some embodiments, the lengths of the first straight edge a1, the second straight edge b2, the third straight edge a3, the fourth straight edge b4, and the second connecting edge b6 are equal.

[0092] Exemplarily, the height of the first reflecting post 21 is the same as the height of the second reflecting post 22. In this way, the areas of the sides to which the first straight edge a1 belongs, the sides to which the second straight edge b2 belongs, the sides to which the third straight edge a3 belongs, the sides to which the fourth straight edge b4 belongs, and the sides to which the second connecting edge b6 belongs are equal, so that the reflection areas of different sides of the first reflecting post 21 and different sides of the second reflecting post 22 are the same, and the brightness uniformity at different viewing angles can be improved.

[0093] In some embodiments, taking Figure 5 and Figure 7For example, a plurality of reflective posts 20 are arranged at intervals in the first direction X and the second direction Y, and the first direction X and the second direction Y intersect; the central points of the plurality of reflective posts 20 arranged in the same row in the first direction X are on the same first straight line L1; and / or, the central points of the plurality of reflective posts 20 arranged in the same column in the second direction Y are on the same second straight line L2.

[0094] Among them, Figure 7 in, the first reflective post 21 and the second reflective post 22 are located in different rows, and the first reflective post 21 and the second reflective post 22 are located in different columns. The central points of the plurality of first reflective posts 21 arranged in the same row in the first direction X are located on one of the first straight lines L1, and the central points of the plurality of second reflective posts 22 arranged in the same row in the first direction X are located on another first straight line L1. And / or, the central points of the plurality of first reflective posts 21 arranged in the same column in the second direction Y are on one of the second straight lines L2, and the central points of the plurality of second reflective posts 22 arranged in the same column in the second direction Y are on another second straight line L2.

[0095] Here, the first straight line L1 and the second straight line L2 are virtual defined position lines and do not represent actual traces.

[0096] In this embodiment, relative to Figure 1 the shown reflective post array, it is equivalent to not changing the array arrangement mode of the plurality of reflective posts, but rotating some of the reflective posts along their central axes, so that the placement angles of the first reflective post 21 and the second reflective post 22 are different.

[0097] Next, some examples of the arrangement methods of the first reflective post 21 and the second reflective post 22 are introduced.

[0098] As an example, as Figure 15 shown, in the first direction X, the first reflective post 21 and the second reflective post 22 are arranged alternately; and / or, in the second direction Y, the first reflective post 21 and the second reflective post 22 are arranged alternately, and the first direction X and the second direction Y intersect.

[0099] In this example, both the first reflective post 21 and the second reflective post 22 are arranged in the same row, and / or, both the first reflective post 21 and the second reflective post 22 are arranged in the same column.

[0100] For example, in the first direction X, the first reflective post 21 and the second reflective post 22 are arranged alternately, and, in the second direction Y, the first reflective post 21 and the second reflective post 22 are arranged alternately. The central points of the first reflective post 21 and the second reflective post 22 in the same row are on the same first straight line, and the central points of the first reflective post 21 and the second reflective post 22 in the same column are on the same second straight line.

[0101] For example, for incident light rays at the same angle, the retroreflective brightness after reflection by the second reflecting column 22 is greater than that after reflection by the first reflecting column 21. In this embodiment, the first reflecting column 21 and the second reflecting column 22 are alternately arranged in the first direction and / or the second direction, which can make the emitted light rays more evenly distributed as a whole, thereby improving the display uniformity.

[0102] As another example, as Figure 16 shown, a plurality of first reflecting columns 21 are located in the first region Q1, and a plurality of second reflecting columns 22 are located in the second region Q2, and the first region Q1 and the second region Q2 are adjacent in the first direction X.

[0103] Exemplarily, the first region Q1 includes a plurality of first reflecting columns 21 arranged in an array in the first direction X and the second direction Y, and the second region Q2 includes a plurality of second reflecting columns 22 arranged in an array in the first direction X and the second direction Y.

[0104] In this embodiment, the first reflecting column 21 and the second reflecting column 22 are respectively located in different first region Q1 and second region Q2 arranged in the first direction, which is convenient for the first region Q1 and the second region Q2 to display pictures with different brightness requirements, so as to flexibly meet different display requirements.

[0105] Exemplarily, the number of the first reflecting columns 21 in the first region Q1 and the number of the second reflecting columns 22 in the second region Q2 may be equal. For example, the shapes and sizes of the first reflecting column 21 and the second reflecting column 22 are the same, the spacing between adjacent first reflecting columns 21 and the spacing between adjacent second reflecting columns 22 are the same, and the areas of the first region Q1 and the second region Q2 are the same.

[0106] In still other embodiments, as Figure 17 shown, the second reflecting column 22 is located in the edge region of the optical component.

[0107] For example, the second reflecting column 22 disposed in the edge region of the optical component can be applied to small viewing angle scenarios.

[0108] Exemplarily, when the second reflecting column 22 is located in the edge region of the optical component, the number of the second reflecting columns 22 may be less than the number of the first reflecting columns 21.

[0109] Exemplarily, a plurality of second reflecting columns 22 can be arranged to surround the first reflecting column 21.

[0110] In still other embodiments, as Figure 18As shown, the reflective column further includes a third reflective column 23. The orthographic projection of the third reflective column 23 on the first substrate 11 presents a third pattern 23c. The third pattern 23c includes a fifth straight edge c5 close to the first edge 101. The fifth straight edge c5 intersects the first straight edge a1 and also intersects the second straight edge b2.

[0111] The fifth straight edge c5 is a straight edge in the outer contour of the third pattern 23c, and the distance from the center of the fifth straight edge c5 to the first edge 101 is less than or equal to the distances from the centers of the other edges of the third pattern 23c to the first edge 101.

[0112] It can be understood that in this embodiment, the second reflective column 22 is rotated by a certain angle relative to the first reflective column 21, and the third reflective column 23 is rotated by a certain angle relative to the first reflective column 21, and the rotation angles of the second reflective column 22 and the third reflective column 23 relative to the first reflective column 21 are different. In this way, for incident light at the same angle, the transmission paths of the light in the first reflective column 21, the second reflective column 22, and the third reflective column 23 are all different. Thus, the angle of the outgoing light can be adjusted more flexibly, thereby better improving the display uniformity.

[0113] The upper and lower surfaces of the third reflective column 23 are parallel to each other.

[0114] Exemplarily, the third pattern 23c further includes a sixth straight edge c6. The sixth straight edge c6 is connected to and perpendicular to the fifth straight edge c5. The side surface to which the fifth straight edge c5 belongs and the side surface to which the sixth straight edge c6 belongs are two mutually perpendicular side surfaces of the third reflective column 23, and the side surface to which the fifth straight edge c5 belongs and the side surface to which the sixth straight edge c6 belongs form a dihedral angle mirror that is mutually perpendicular.

[0115] Exemplarily, the shapes of the first reflective column 21, the second reflective column 22, and the third reflective column 23 can be the same. For example, the shapes of the first reflective column 21, the second reflective column 22, and the third reflective column 23 are all quadrangular prisms. Or, the shapes of the first reflective column 21, the second reflective column 22, and the third reflective column 23 are all triangular prisms.

[0116] Exemplarily, the shapes of the first reflective column 21, the second reflective column 22, and the third reflective column 23 are the same, and the sizes of the first reflective column 21, the second reflective column 22, and the third reflective column 23 are the same.

[0117] Exemplarily, the shapes of at least two of the first reflective column 21, the second reflective column 22, and the third reflective column 23 can be different. For example, the shape of the first reflective column 21 is a quadrangular prism, and the shapes of the second reflective column 22 and the third reflective column 23 are both triangular prisms. Or, the shape of the first reflective column 21 is a triangular prism, and the shapes of the second reflective column 22 and the third reflective column 23 are both quadrangular prisms.

[0118] In some embodiments, the rotation angle of the second reflecting column 22 relative to the first reflecting column 21 is α, and the rotation angle of the third reflecting column 23 relative to the first reflecting column 21 is β, where α≠β.

[0119] It can be understood that the relative positional relationships between the side surfaces where the first straight edge a1 and the third straight edge a3 of the first reflecting column 21 are located and the side surfaces where the second straight edge b2 and the fourth straight edge b4 of the second reflecting column 22 are located are different, and the relative positional relationships between the side surfaces where the first straight edge a1 and the third straight edge a3 of the first reflecting column 21 are located and the side surfaces where the fifth straight edge c5 and the sixth straight edge c6 of the third reflecting column 23 are located are different. For example, the side surface where the second straight edge b2 of the second reflecting column 22 is located is rotated by an angle α relative to the side surface where the first straight edge a1 of the first reflecting column 21 is located, and the side surface where the fourth straight edge b4 of the second reflecting column 22 is located is also rotated by an angle α relative to the side surface where the third straight edge a3 of the first reflecting column 21 is located. The side surface where the fifth straight edge c5 of the third reflecting column 23 is located is rotated by an angle β relative to the side surface where the first straight edge a1 of the first reflecting column 21 is located, and the side surface where the sixth straight edge c6 of the third reflecting column 23 is located is also rotated by an angle β relative to the side surface where the third straight edge a3 of the first reflecting column 21 is located.

[0120] In some embodiments, α = 2*β.

[0121] Exemplarily, α is greater than 0° and less than 90°. For example, α = 45° and β = 22.5°.

[0122] Some examples of the arrangement modes of the first reflecting column 21, the second reflecting column 22 and the third reflecting column 23 are introduced below.

[0123] In some embodiments, as Figure 18 shown, the first direction X is the row direction, the second direction is the column direction, and the optical component includes multiple rows and multiple columns of reflecting columns. In the first direction X, the first reflecting column 21 and the second reflecting column 22 are alternately arranged in some rows; the first reflecting column 21 and the third reflecting column 23 are alternately arranged in other rows. Additionally, in the second direction Y, the first reflecting column 21 and the second reflecting column 22 are alternately arranged in some columns, and the first reflecting column 21 and the third reflecting column 23 are alternately arranged in other columns.

[0124] For example, the first reflecting column 21 and the second reflecting column 22 are alternately arranged in odd rows; the first reflecting column 21 and the third reflecting column 23 are alternately arranged in even rows. The first reflecting column 21 and the second reflecting column 22 are alternately arranged in odd columns, and the first reflecting column 21 and the third reflecting column 23 are alternately arranged in even columns.

[0125] In some other embodiments, as Figure 19As shown, in the first direction X, a plurality of reflection columns are arranged in the order of the first reflection column 21, the second reflection column 22, and the third reflection column 23.

[0126] Alternatively, as Figure 20 shown, in the second direction Y, a plurality of reflection columns are arranged in the order of the first reflection column 21, the second reflection column 22, and the third reflection column 23.

[0127] Figures 18 to 20 In the illustrated example, the first reflection column 21, the second reflection column 22, and the third reflection column 23 are relatively evenly distributed as a whole, which can make the emitted light relatively evenly distributed as a whole, thereby improving the display uniformity.

[0128] The above examples only illustrate some arrangement manners of the first reflection column 21, the second reflection column 22, and the third reflection column 23. Of course, the first reflection column 21, the second reflection column 22, and the third reflection column 23 can also be arranged in other arrangement manners, and the present application does not limit this.

[0129] In some embodiments, as Figure 5 and Figure 6 shown, the optical component further includes a black matrix 30. The black matrix 30 and the reflection column 20 are located on the first side of the first substrate 11. The black matrix 30 includes an opening exposing the first side surface of the first substrate 11, and the reflection column 20 is located in the opening.

[0130] The black matrix 30 can absorb light. For example, the black matrix 30 can absorb visible light. The light emitted by an external light source irradiates the reflection column 20 from the second side of the first substrate 11. The black matrix 30 can absorb the light that does not enter the reflection column 20, so that the light can only be reflected out through the reflection column 20, thereby preventing the light that does not enter the reflection column 20 from affecting the overall display effect.

[0131] Exemplarily, as Figure 5 and Figure 6 shown, the optical component further includes a second substrate 12. The reflection column 20 is located between the second substrate 12 and the first substrate 11. The second substrate 12 is light-transmissive. The second substrate 12 may include a transparent material. For example, the second substrate 12 includes, but is not limited to, glass or transparent plastic.

[0132] The present application also provides a display device, including the optical component provided by the present application. Please refer to Figure 21 , Figure 21 which is a schematic structural diagram of a display device provided by an embodiment of the present application. Figure 21The provided display device 1000 includes the optical component 100 provided in any of the above embodiments of the present application. The display device 1000 further includes a light source 200, and the light source 200 is located on one side of the optical component 100. For example, the light source 200 is located on the side of the first substrate 11 of the optical component 100 facing away from the reflection column 20.

[0133] Multiple light rays emitted by the light source 200 can enter the optical component 100, and after multiple reflections within the optical component 100, they exit the optical component. After the multiple light rays are reflected out of the optical component 100, they can converge into a real image 300 (real image mirror) in the air. That is to say, the optical component 100 can be used to project the display screen formed by the light source 200 to the air on the other side of the display device, forming a real image identical to the display screen provided by the light source.

[0134] The light source 200 can be an electroluminescent device or a photoluminescent device. In the case where the light source 200 is an electroluminescent device, the electroluminescent device can be an organic light-emitting diode (OLED) light-emitting device or a quantum dot (Quantum Dot Light Emitting Diode, QLED) light-emitting device. In the case where the light source 200 is a photoluminescent device, the photoluminescent device can be a quantum dot photoluminescent device.

[0135] The display device provided in the embodiments of the present application has the beneficial effects of the optical component provided in the embodiments of the present application. For the specific description of the optical component, reference can be made to the above embodiments, and details are not described herein again in this embodiment.

[0136] In accordance with the embodiments of the present application as described above, these embodiments do not describe all details in detail, nor do they limit the application to only the specific embodiments described. Obviously, many modifications and variations can be made according to the above description. The present specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present application, so that those skilled in the art can make good use of the present application and its modifications based on the present application. The present application is only limited by the claims and their full scope and equivalents.

Claims

1. An optical component, characterized in that: include: A first substrate including a first edge extending along a first direction; A plurality of reflective columns arranged in an array are located on one side of the first substrate, the reflective columns at least comprising a first reflective column and a second reflective column, the orthographic projection of the first reflective column on the first substrate being a first pattern, the first pattern comprising a first straight edge close to the first edge; the orthographic projection of the second reflective column on the first substrate being a second pattern, the second pattern comprising a second straight edge close to the first edge; The first straight edge intersects with the second straight edge.

2. The optical component according to claim 1, characterized in that The first reflective column comprises a first upper surface and a first lower surface, and the first upper surface is parallel to the first lower surface; The second reflective column comprises a second upper surface and a second lower surface, and the second upper surface is parallel to the second lower surface; The first pattern includes a third straight edge perpendicular to the first straight edge, and the second pattern includes a fourth straight edge perpendicular to the second straight edge.

3. The optical component according to claim 2, characterized in that The shape of the first reflective column is the same as the shape of the second reflective column.

4. The optical component according to claim 3, characterized in that The shape of the first reflective column and the shape of the second reflective column are both quadrangular prisms.

5. The optical component according to claim 3, characterized in that The first pattern includes a first connecting edge, the first connecting edge is connected to the first straight edge and the third straight edge; The second pattern includes a second connecting edge, and the second connecting edge is connected to the second straight edge and the fourth straight edge.

6. The optical component according to claim 5, characterized in that The first connecting edge and the second connecting edge are both straight lines; Alternatively, the first connecting edge and the second connecting edge are both arc-shaped edges protruding outward.

7. The optical component according to claim 2, characterized in that The shape of the first reflective column is different from the shape of the second reflective column.

8. The optical component according to claim 7, characterized in that The first reflective column is in the shape of a quadrangular prism, and the second pattern includes a second connecting edge, and the second connecting edge is connected to the second straight edge and the fourth straight edge.

9. The optical component according to claim 8, characterized in that The length of the first straight side, the length of the second straight side, the length of the third straight side, the length of the fourth straight side, and the length of the second connecting side are equal.

10. The optical component according to claim 4, characterized in that The length of the first straight side is equal to the length of the third straight side, the diagonal length of the first pattern is x1, the height of the first reflective column is z1, the ratio of z1 to x1 / 2 is greater than or equal to 2, and the ratio of z1 to x1 / 2 is less than or equal to 5.

11. The optical component according to claim 10, characterized in that x1 / 2 is greater than or equal to 20um, and x1 / 2 is less than or equal to 100um.

12. The optical component according to claim 3, characterized in that A rotation angle of the second reflective column relative to the first reflective column is greater than 0° and less than 90°.

13. The optical component according to claim 12, characterized in that The rotation angle of the second reflective column relative to the first reflective column is 45°.

14. The optical component according to claim 1, characterized in that The plurality of reflective columns are arranged at intervals in the first direction and the second direction, and the first direction and the second direction intersect; The center points of the plurality of reflective columns arranged in the same row in the first direction are on the same first straight line; And / or, center points of the plurality of reflective columns arranged in the same row in the second direction are on the same second straight line.

15. The optical component according to claim 1, characterized in that In the first direction, the first reflective columns and the second reflective columns are arranged alternately; And / or, in the second direction, the first reflective columns and the second reflective columns are arranged alternately, and the first direction and the second direction intersect.

16. The optical component according to claim 1, characterized in that A plurality of the first reflective columns are located in a first area, a plurality of the second reflective columns are located in a second area, and the first area and the second area are adjacent to each other in the first direction.

17. The optical component according to claim 15 or 16, characterized in that: The number of the first reflective columns is equal to the number of the second reflective columns.

18. The optical component according to claim 1, characterized in that The second reflective column is located at an edge area of ​​the optical component.

19. The optical component according to claim 1, characterized in that The reflective column further includes a third reflective column, the orthographic projection of the third reflective column on the first substrate is a third pattern, and the third pattern includes a fifth straight edge close to the first edge; The fifth straight side intersects with the first straight side, and the fifth straight side intersects with the second straight side.

20. The optical component according to claim 19, characterized in that In the first direction, the first reflective columns and the second reflective columns are arranged alternately in some rows; and the first reflective columns and the third reflective columns are arranged alternately in another part of the rows.

21. The optical assembly according to claim 19, wherein: In the first direction, the plurality of reflective columns are arranged in the order of the first reflective column, the second reflective column, and the third reflective column; Alternatively, in the second direction, the plurality of reflective columns are arranged in the order of the first reflective column, the second reflective column, and the third reflective column, and the first direction intersects with the second direction.

22. The optical assembly according to claim 19, wherein: The rotation angle of the second reflective column relative to the first reflective column is α, and the rotation angle of the third reflective column relative to the first reflective column is β, where α≠β.

23. The optical component according to claim 22, characterized in that α＝2*β。 24. The optical assembly according to claim 1, wherein: The optical assembly further includes a black matrix. The black matrix and the reflective column are located on a first side of the first substrate. The black matrix includes an opening exposing a first side surface of the first substrate, and the reflective column is located in the opening.

25. A display device, characterized in that: Comprising the optical component as described in any one of claims 1-24.

Images