Display device

Abstract

The application provides a display device, relates to the technical field of display, and aims to improve the low light energy utilization rate of the display device in the prior art. The display device comprises a driving substrate, a light source group, a lens unit group and a light shielding layer arranged in sequence. The light source group comprises first light sources and second light sources arranged at intervals; the lens unit group comprises first lens units and second lens units; the light shielding layer has a plurality of light transmission gaps; wherein the first lens units have first light entry surfaces, and the second lens units have second light entry surfaces; the first lens units are configured to make the light rays from the first light sources towards the first light entry surfaces exit to the left eye through the first light transmission gaps in the plurality of light transmission gaps; and the second lens units are configured to make the light rays from the second light sources towards the second light entry surfaces exit to the right eye through the second light transmission gaps in the plurality of light transmission gaps.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more specifically to a display device. Background Technology

[0002] In related technologies, 3D display devices typically include multiple light sources and a light-shielding layer, with multiple light-transmitting gaps within the light-shielding layer. By transmitting left-eye and right-eye parallax images displayed by different light sources to the user's left and right eyes respectively through these light-transmitting gaps, binocular parallax is created, allowing the user to experience 3D vision. Because the light emitted from the light sources diverges, most of the light energy is blocked and absorbed by the light-shielding layer, with only a small portion of the light able to escape through the light-transmitting gaps. This results in low light energy utilization and increased power consumption in the display device. Summary of the Invention

[0003] The embodiments of the present invention provide a display device that can improve the technical problem of low light energy utilization in 3D display devices in the related art.

[0004] In a first aspect, embodiments of the present invention provide a display device, comprising: a driving substrate, a light source group, a lens unit group, and a light-shielding layer. The light source group is disposed on one side of the driving substrate and includes a first light source and a second light source disposed at intervals. The lens unit group includes a first lens unit and a second lens unit, the first lens unit being disposed on the side of the first light source away from the driving substrate, and the second lens unit being disposed on the side of the second light source away from the driving substrate. The light-shielding layer is disposed on the side of the lens unit group away from the driving substrate and has a plurality of light-transmitting gaps. The first lens unit has a first light-incident surface, and the second lens unit has a second light-incident surface. The first lens unit is configured to allow light from the first light source toward the first light-incident surface to exit through the first light-transmitting gap among the plurality of light-transmitting gaps to reach the left eye, and the second lens unit is configured to allow light from the second light source toward the second light-incident surface to exit through the second light-transmitting gap among the plurality of light-transmitting gaps to reach the right eye.

[0005] In some embodiments, the first lens unit includes a first lens portion, with the first light-incident surface located on the first lens portion; the first lens portion further includes a first light-out surface, the first light-incident surface being configured such that light from the first light source toward the first light-incident surface enters the first lens portion and is refracted toward the first light-out surface; the first light-out surface is configured such that light passing through the first light-out surface is refracted toward the first light-transmitting gap and exits through the first light-transmitting gap to the left eye; and the second lens unit includes a second lens portion, with the second light-incident surface located on the second lens portion; the second lens portion further includes a second light-out surface, the second light-incident surface being configured such that light from the second light source toward the second light-incident surface enters the second lens portion and is refracted toward the second light-out surface; the second light-out surface is configured such that light passing through the second light-out surface is refracted toward the second light-transmitting gap and exits through the second light-transmitting gap to the right eye.

[0006] In some embodiments, the first light-incident surface is a plane, and the first light-exiting surface is a concave surface with its concave direction facing the first light source.

[0007] In some embodiments, the second light-incident surface is a plane, and the second light-exiting surface is a concave surface facing the second light source.

[0008] In some embodiments, the first lens portion further includes a first reflective surface, and the first incident surface is configured such that light from the first light source toward the first lens portion enters the first lens portion and is refracted toward the first emitting surface and the first reflective surface, respectively; the first reflective surface is configured such that light refracted toward the first reflective surface reflects toward the first emitting surface; the first emitting surface is configured such that light passing through the first emitting surface is refracted toward the first light-transmitting gap and exits through the first light-transmitting gap to the left eye.

[0009] In some embodiments, the second lens portion further includes a second reflective surface, and the second incident surface is configured such that light from the second light source toward the second lens portion enters the second lens portion and is refracted toward the second emitting surface and the second reflective surface, respectively; the second reflective surface is configured such that light refracted toward the second reflective surface reflects toward the second emitting surface; the second emitting surface is configured such that light passing through the second emitting surface is refracted toward the second light-transmitting gap and exits through the second light-transmitting gap to the right eye.

[0010] In some embodiments, the first light-incident surface is a concave surface facing the first light source; the first reflective surface is a plane, and the first light-emitting surface is a plane.

[0011] In some embodiments, the second light-incident surface is a concave surface facing the second light source; the second reflective surface is a plane, and the second light-emitting surface is a plane.

[0012] In some embodiments, the first lens unit further includes a third lens portion, the third lens portion including a third light-incident surface, the third lens portion being configured to: allow light from the first light source toward the third light-incident surface to exit through a third light-transmitting gap among the plurality of light-transmitting gaps; and the second lens unit further includes a fourth lens portion, the fourth lens portion including a fourth light-incident surface, the fourth lens portion being configured to: allow light from the second light source toward the fourth light-incident surface to exit through a fourth light-transmitting gap among the plurality of light-transmitting gaps.

[0013] In some embodiments, the first light-transmitting gap, the second light-transmitting gap, the third light-transmitting gap, and the fourth light-transmitting gap share a common light-transmitting gap.

[0014] In some embodiments, the orthographic projection of the first light source on the light-shielding layer has a first distance from the center point of the first light-transmitting gap, and the orthographic projection of the first light source on the light-shielding layer has a second distance from the third light-transmitting gap, wherein the first distance is smaller than the second distance; and the orthographic projection of the second light source on the light-shielding layer has a third distance from the center point of the second light-transmitting gap, and the orthographic projection of the second light source on the light-shielding layer has a fourth distance from the fourth light-transmitting gap, wherein the third distance is smaller than the fourth distance.

[0015] In some embodiments, the first lens unit and the second lens unit are symmetrically arranged about a first plane, the first plane being perpendicular to the line connecting the first light source and the second light source and passing through the midpoint of the line.

[0016] In some embodiments, the lens unit group is disposed on the driving substrate.

[0017] In some embodiments, the display device further includes a cover plate, the lens unit group is disposed on the side of the cover plate close to the driving substrate, and the light-shielding layer is disposed on the side of the cover plate away from the driving substrate.

[0018] In some embodiments, the display device further includes a cover plate and a frame adhesive. Multiple light source groups and multiple lens unit groups are provided respectively, and the multiple light source groups and multiple lens unit groups correspond one-to-one. The cover plate is located between the light-shielding layer and the multiple lens unit groups, and the frame adhesive is located between the cover plate and the driving substrate and is disposed around the multiple light source groups.

[0019] The beneficial effects of the embodiments of the present invention are as follows:

[0020] In an embodiment of the present invention, the first lens unit in the lens unit group can adjust the light emitted by the first light source toward the first light-incident surface, causing it to exit through the first light-transmitting gap, thereby preventing the light from diverging onto the light-shielding part of the light-shielding layer and being absorbed by the light-shielding part, thus improving the light energy utilization rate of the light source. Simultaneously, the second lens unit in the lens unit group can adjust the light emitted by the second light source toward the second light-incident surface, causing it to exit through the second light-transmitting gap, thereby preventing the light from diverging onto the light-shielding part of the light-shielding layer and being absorbed by the light-shielding part, thus improving the light energy utilization rate of the light source. The first light source can be used to display a left-eye parallax image, and the second light source can be used to display a right-eye parallax image, thereby enabling the display device to achieve 3D display. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a cross-sectional structural diagram of a display device provided in some embodiments of the present invention;

[0023] Figure 2 This is a cross-sectional view of another display device provided in some embodiments of the present invention;

[0024] Figure 3 This is a cross-sectional structural diagram of another display device provided in some embodiments of the present invention. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Furthermore, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present invention and are not intended to limit the present invention. In the present invention, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0026] In the description of this specification, the terms "one embodiment," "some embodiments," "exemplary embodiment," "example," or "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0027] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0028] In describing some embodiments, the term "connection" and its derivative expressions may be used. For example, the term "connection" may be used in describing some embodiments to indicate that two or more components have direct physical or electrical contact with each other. The embodiments disclosed herein are not necessarily limited to the content of this document.

[0029] As used herein, “approximately” includes the values ​​stated and the average value within an acceptable range of deviation from the given values, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the given quantity (i.e., the limitations of the measurement system).

[0030] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0031] In related technologies, display devices typically include multiple light sources and a light-shielding layer, with multiple light-transmitting gaps within the light-shielding layer. By transmitting left-eye and right-eye parallax images displayed by different light sources to the user's left and right eyes respectively through these light-transmitting gaps, binocular parallax is created, allowing the user to experience 3D vision. Because the light emitted from the light sources diverges, most of the light energy is blocked and absorbed by the light-shielding layer, with only a small portion of the light able to escape through the light-transmitting gaps. This results in low light energy utilization and increased power consumption in the display device.

[0032] Some embodiments of this disclosure provide a display device, such as... Figure 1-3 As shown, the display device 100 includes a driving substrate 1, a light source group 2, a lens unit group 3, and a light-shielding layer 7.

[0033] The light source group 2 is disposed on one side of the driving substrate 1. The light source group 2 includes a first light source 21 and a second light source 22 arranged at intervals. The driving substrate 1 can be electrically connected to each light source in the light source group 2 and drive the light source to turn on or off.

[0034] The lens unit group 3 corresponds to the light source group 2. The lens unit group 3 includes a first lens unit 31 and a second lens unit 32. The first lens unit 31 is disposed on the side of the first light source 21 away from the driving substrate 1, and the second lens unit 32 is disposed on the side of the second light source 22 away from the driving substrate 1.

[0035] The light-shielding layer 7 is disposed on the side of the lens unit group 3 away from the driving substrate 1, and the light-shielding layer 7 has a plurality of light-transmitting gaps 72. For example, the light-shielding layer 7 also includes a light-shielding portion 71, which can define the plurality of light-transmitting gaps 72.

[0036] The first lens unit 31 has a first light-incident surface 301, and the second lens unit 32 has a second light-incident surface 303. The first lens unit 31 is configured to allow light from the first light source 21 toward the first light-incident surface 301 to exit through the first light-incident gap 721 among a plurality of light-incident gaps 72 and reach the left eye; the second lens unit 32 is configured to allow light from the second light source 22 toward the second light-incident surface 303 to exit through the second light-incident gap 722 among a plurality of light-incident gaps 72 and reach the right eye.

[0037] With this configuration, the first lens unit 31 in the lens unit group 3 can adjust the light emitted by the first light source 21 toward the first light-incident surface 301, causing it to exit through the first light-transmitting gap 721. This prevents the light from diverging onto and being absorbed by the light-shielding part 71 of the light-shielding layer 7, thereby improving the light energy utilization rate of the first light source 21. Simultaneously, the second lens unit 32 in the lens unit group 3 can adjust the light emitted by the second light source 22 toward the second light-incident surface 303, causing it to exit through the second light-transmitting gap 722. This also prevents the light from diverging onto and being absorbed by the light-shielding part 71 of the light-shielding layer 7, thereby improving the light energy utilization rate of the second light source 22. The first light source 21 can be used to display the left-eye parallax image, while the second light source 22 can be used to display the right-eye parallax image, thus enabling the display device 100 to achieve 3D display.

[0038] In some embodiments, such as Figure 1-3As shown, the first lens unit 31 includes a first lens portion 311, and a first light-incident surface 301 is located on the first lens portion 311; the first lens portion 311 also includes a first light-out surface 302, and the first light-incident surface 301 is configured such that light from the first light source 21 toward the first light-incident surface 301 enters the first lens portion 311 and is refracted toward the first light-out surface 302; the first light-out surface 302 is configured such that light passing through the first light-out surface 302 is refracted toward the first light-transmitting gap 721 and exits through the first light-transmitting gap 721 to the left eye.

[0039] In this way, the light from the first light source 21 toward the first light-incident surface 301 can be adjusted by the first lens section 311 in the first lens unit 31, so that it is concentrated in the first light-transmitting gap 721 and emitted to the left eye, thereby improving the light energy utilization rate of the first light source 21.

[0040] In some examples, such as Figure 1 As shown, the first light-incident surface 301 is a plane, and the first light-exiting surface 302 is a concave surface facing the first light source 21. In this way, the light from the first light source 21 can be refracted onto the first light-exiting surface 302 through the plane, and the concave surface of the first light-exiting surface 302 can converge the emitted light, so that the light from the first light source 21 directed towards the first lens portion 311 can all exit through the first light-transmitting gap 721 and enter the left eye.

[0041] like Figure 1 As shown, the first light-transmitting gap 721 can be the light-transmitting gap 72 closest to the orthogonal projection of the first lens unit 31 on the light-shielding layer 7. That is, among all the light-transmitting gaps 72, the first light-transmitting gap 721 is closest to the orthogonal projection of the first lens unit 31 on the light-shielding layer 7, so the deflection angle of the light emitted when passing through the first light-transmitting gap 721 is small. Of course, the first light-transmitting gap 721 can also be a light-transmitting gap 72 farther from the orthogonal projection of the first lens unit 31 on the light-shielding layer 7. For example, there is at least one (e.g., two or three) light-transmitting gaps 72 between the first light-transmitting gap 721 and the orthogonal projection of the first lens unit 31 on the light-shielding layer 7, so the deflection angle of the light emitted when passing through the first light-transmitting gap 721 is large. In this way, the light emitted from the first lens unit 31 and the first light-transmitting gap 721 can smoothly enter the left eye according to the predetermined position of the left eye.

[0042] It is worth noting that the specific shapes of the first light-incident surface 301 and the first light-exit surface 302 can be set according to the arrangement position of the first light-transmitting gap 721, and this disclosure does not impose any restrictions on them.

[0043] In some embodiments, such as Figure 2As shown, the first lens section 311 further includes a first reflecting surface 305. The first light-incident surface 301 is configured such that light from the first light source 21 toward the first lens section 311 enters the first lens section 311 and is refracted toward the first light-exiting surface 302 and the first reflecting surface 305 respectively (that is, part of the light is refracted toward the first light-exiting surface 302 and another part of the light is refracted toward the first reflecting surface 305). The first reflecting surface 305 is configured such that light refracted toward the first reflecting surface 305 is reflected toward the first light-exiting surface 302. The first light-exiting surface 302 is configured such that light passing through the first light-exiting surface 302 is refracted toward the first light-transmitting gap 721.

[0044] In this way, the first light-incident surface 301, the first reflective surface 305, and the first light-exiting surface 302 cooperate with each other, so that the light from the first light source 21 toward the first lens section 311 can be emitted through the first light-transmitting gap 721, thereby improving the light energy utilization rate of the first light source 21.

[0045] In some examples, such as Figure 2 As shown, the first light-incident surface 301 is a concave surface facing the first light source 21; the first reflective surface 305 is a plane, and the first light-emitting surface 302 is a plane. The first light-incident surface 301, the first reflective surface 305, and the first light-emitting surface 302 can be three surfaces connected end to end.

[0046] By setting the first light-incident surface 301 as a concave surface, the light from the first light source 21 can be refracted onto the first light-out surface 302 and the first reflective surface 305. Through the reflection of the first reflective surface 305, a portion of the light passing through the first reflective surface 305 can be emitted from the first light-out surface 302 toward the first light-transmitting gap 721.

[0047] In some examples, materials such as aluminum or silver can be coated on one side surface of the first lens portion 311 to serve as the first reflecting surface 305.

[0048] In some embodiments, such as Figure 1-3 As shown, the second lens unit 32 includes a second lens portion 321, and a second light-incident surface 303 is located on the second lens portion 321; the second lens portion 321 also includes a second light-out surface 304, and the second light-incident surface 303 is configured such that light from the second light source 22 toward the second light-incident surface 303 enters the second lens portion 321 and is refracted toward the second light-out surface 304; the second light-out surface 304 is configured such that light passing through the second light-out surface 304 is refracted toward the second light-transmitting gap 722 and exits through the second light-transmitting gap 722 to the right eye.

[0049] In this way, the light from the second light source 22 toward the second light-incident surface 303 can be adjusted by the second lens section 321 in the second lens unit 32, so that it is concentrated in the second light-transmitting gap 722 and emitted to the left eye, thereby improving the light energy utilization rate of the second light source 22.

[0050] In some examples, such as Figure 1 As shown, the second light-incident surface 303 is a plane, and the second light-exiting surface 304 is a concave surface facing the second light source 22. In this way, the light from the second light source 22 can be refracted onto the second light-exiting surface 304 through the plane, and the emitted light can be converged due to the concave surface of the first light-exiting surface 302, so that the light emitted by the second light source 22 towards the second lens section 321 can all exit from the second light-transmitting gap 722 and enter the right eye.

[0051] like Figure 1 As shown, the second light-transmitting gap 722 can be the light-transmitting gap 72 closest to the orthogonal projection of the second lens unit 32 on the light-shielding layer 7. That is, among all the light-transmitting gaps 72, the second light-transmitting gap 722 is closest to the orthogonal projection of the second lens unit 32 on the light-shielding layer 7, so the deflection angle of the light emitted when passing through the second light-transmitting gap 722 is smaller. Of course, the second light-transmitting gap 722 can also be a light-transmitting gap 72 farther from the orthogonal projection of the second lens unit 32 on the light-shielding layer 7. For example, there is at least one (e.g., two or three) light-transmitting gaps 722 between the second light-transmitting gap 722 and the orthogonal projection of the second lens unit 32 on the light-shielding layer 7, so the deflection angle of the light emitted when passing through the second light-transmitting gap 722 is larger. In this way, the light emitted from the second lens unit 32 and exiting from the second light-transmitting gap 722 can smoothly enter the right eye according to the predetermined position of the right eye.

[0052] It is worth noting that the specific shapes of the second light-incident surface 303 and the second light-exit surface 304 can be set according to the arrangement position of the second light-transmitting gap 722, and this disclosure does not impose any restrictions on them.

[0053] In some embodiments, such as Figure 3 As shown, the second lens section 321 further includes a second reflecting surface 306. The second light-incident surface 303 is configured such that light from the second light source 22 towards the second lens section 321 enters the second lens section 321, and a portion of the light is refracted toward the second light-exiting surface 304, while another portion of the light is refracted toward the second reflecting surface 306. The second reflecting surface 306 is configured such that light refracted toward the second reflecting surface 306 is reflected toward the second light-exiting surface 304. The second light-exiting surface 304 is configured such that light passing through the second light-exiting surface 304 is refracted toward the second light-transmitting gap 722.

[0054] In this way, the second light-incident surface 303, the second reflective surface 306, and the second light-exiting surface 304 cooperate with each other, so that the light from the second light source 22 toward the second lens section 321 can be emitted through the second light-transmitting gap 722, thereby improving the light energy utilization rate of the second light source 22.

[0055] In some examples, materials such as aluminum or silver can be coated on one side surface of the second lens portion 321 to serve as the second reflective surface 306.

[0056] In some examples, such as Figure 3 As shown, the second light-incident surface 303 is a concave surface facing the second light source 22; the second reflective surface 306 is a plane, and the second light-emitting surface 304 is a plane. The second light-incident surface 303, the second reflective surface 306, and the second light-emitting surface 304 can be three surfaces connected end to end.

[0057] By setting the second light-incident surface 303 as a concave surface, part of the light from the second light source 22 can be refracted onto the second light-out surface 304, and another part of the light can be refracted onto the second reflective surface 306. Through the reflection of the second reflective surface 306, part of the light passing through the second reflective surface 306 can be emitted from the second light-out surface 304 toward the second light-transmitting gap 722.

[0058] In some examples, materials such as aluminum or silver can be coated on one side surface of the second lens portion 321 to serve as the second reflective surface 306.

[0059] In some embodiments, such as Figure 1-3 As shown, the first lens unit 31 also includes a third lens section 312, which includes a third light-incident surface 331. The third lens section 312 is configured to allow light from the first light source 21 toward the third light-incident surface 331 to exit through the third light-incident gap 723 among a plurality of light-incident gaps 72.

[0060] Since the third lens 312 adjusts the light from the first light source 21 and focuses it to the third light-transmitting gap 723, it is beneficial for the light passing through the third light-transmitting gap 723 to be seen by the user at an appropriate angle, thereby expanding the viewing angle of the display device 100.

[0061] Figure 1-2 The illustration takes the example of the second light-transmitting gap 722 and the third light-transmitting gap 723 being located in the same light-transmitting gap. That is, the light emitted by the second light source 22 through the second lens section 321 and the light emitted by the first light source 21 through the third lens section 312 pass through the same light-transmitting gap. However, since the angles of deflection of the two (i.e. the two parts of light) are different, only the light emitted by the second light source 22 through the second lens section 321 can be seen by the right eye.

[0062] In some embodiments, such as Figure 1-3 As shown, the second lens unit 32 also includes a fourth lens section 322, which includes a fourth light-incident surface 332. The fourth lens section 322 is configured to allow light from the second light source 22 toward the fourth light-incident surface 332 to exit through the fourth light-incident gap 724 among a plurality of light-incident gaps 72.

[0063] Since the fourth lens 322 adjusts the light from the second light source 22 and focuses it onto the fourth light-transmitting gap 724, it is beneficial for the light passing through the fourth light-transmitting gap 724 to be seen by the user at an appropriate angle, thereby expanding the viewing angle of the display device 100.

[0064] Figure 1-2 The illustration takes the example of the first light-transmitting gap 721 and the fourth light-transmitting gap 724 being located in the same light-transmitting gap. That is, the light emitted by the first light source 21 through the first lens section 311 and the light emitted by the second light source 22 through the fourth lens section 322 pass through the same light-transmitting gap. However, since the angles of deflection of the two (i.e. the two parts of light) are different, only the light emitted by the first light source 21 through the first lens section 311 can be seen by the left eye.

[0065] In some embodiments, such as Figure 3 As shown, the first light-transmitting gap 721, the second light-transmitting gap 722, the third light-transmitting gap 723, and the fourth light-transmitting gap 724 share a common light-transmitting gap. This allows the light from the first light source 21 passing through the first lens unit 31 and the light from the second light source 22 passing through the second lens unit 32 to be concentrated and emitted from the same light-transmitting gap 72, thereby increasing the display brightness of the display device 100 at the corresponding viewing angle.

[0066] In some embodiments, such as Figure 1-2 As shown, the orthographic projection of the first light source 21 on the light-shielding layer 7 (e.g., the orthographic projection of the center point of the first light source 21 on the light-shielding layer 7) has a first distance D1 with the center point of the first light-transmitting gap 721, and the orthographic projection of the first light source 21 on the light-shielding layer 7 has a second distance D2 with the third light-transmitting gap 723. The first distance D1 is smaller than the second distance D2.

[0067] This configuration allows the third lens section 312 of the first lens unit 31 to deflect the incoming light more significantly, thereby helping to prevent this portion of the light from entering the right eye and causing display interference.

[0068] In some embodiments, such as Figure 1-2As shown, the orthographic projection of the second light source 22 on the light-shielding layer 7 has a third distance D3 with the center point of the second light-transmitting gap 722, and the orthographic projection of the second light source 22 on the light-shielding layer 7 has a fourth distance D4 with the fourth light-transmitting gap 724. The third distance D3 is smaller than the fourth distance D4.

[0069] This configuration allows the fourth lens section 322 of the second lens unit 32 to deflect the incoming light more significantly, thereby helping to prevent this portion of the light from entering the left eye and causing display interference.

[0070] In some embodiments, such as Figure 2 As shown, the first lens unit 31 and the second lens unit 32 are symmetrically arranged about the first plane P1. The first plane P1 is perpendicular to the line connecting the first light source 21 and the second light source 22 and passes through the midpoint of the line. This symmetry between the two lens units facilitates the fabrication of the lens unit group 3 and also helps ensure the stability of the overall structure.

[0071] It is worth noting that the line connecting the first light source 21 and the second light source 22 can refer to the line connecting the center of the first light source 21 and the center of the second light source 22. This ensures the symmetry of the light emission and prevents interference between the light rays.

[0072] In some embodiments, for the first lens unit 31, the first lens portion 311 and the third lens portion 312 can be integrally formed; for the second lens unit 32, the second lens portion 321 and the fourth lens portion 322 can be integrally formed. This allows the lens unit to be manufactured in a single process, thereby improving the manufacturing efficiency of the display device 100. Furthermore, the integrally formed lens unit has higher stability and better light adjustment effect.

[0073] In some examples, each lens unit can be made of materials such as polymethyl methacrylate (PMMA) or polycarbonate (PC), which have good light refraction properties.

[0074] In some embodiments, such as Figure 1 As shown, the lens unit group 3 is disposed on the driving substrate 1, which serves as a support platform for the lens unit group 3, allowing the lens unit group 3 to be fixed on the driving substrate 1. For example, the lens unit group 3 can be bonded to the driving substrate 1 with adhesive, which helps to ensure the stability of the lens unit group 3.

[0075] In other embodiments, such as Figure 2-3As shown, the display device 100 also includes a cover plate 6, with the lens unit group 3 disposed on the side of the cover plate 6 close to the driving substrate 1, and the light-shielding layer 7 disposed on the side of the cover plate 6 away from the driving substrate 1. In this way, the cover plate 6 can serve as a support platform for the lens unit group 3, allowing the lens unit group 3 to be bonded and fixed on the cover plate 6, which helps to ensure the stability of the lens unit group 3.

[0076] In some embodiments, the display device 100 may include a plurality of lens unit groups 3 and a plurality of light source groups 2, wherein the plurality of lens unit groups 3 correspond one-to-one with the plurality of light source groups 2.

[0077] In some examples, multiple lens unit groups 3 can be arranged in an array.

[0078] In some examples, a transparent adhesive layer 5 is also provided between the cover plate 6 and the driving substrate 1, and the transparent adhesive layer 5 fills the gap between the cover plate 6 and the driving substrate 1. That is, a transparent adhesive layer 5 is filled between the first lens unit 31 and the second lens unit 32 of any lens unit group 3, between the first light source 21 and the second light source 22 of the light source group 2, and between the light source group 2 and the lens unit group 3. This helps to ensure the overall stability of the display device 100.

[0079] For example, the material of the transparent adhesive layer 5 can be silicone or the like.

[0080] For example, the refractive index of the transparent adhesive layer 5 can be less than the refractive index of each lens section (first lens section 311, second lens section 321, third lens section 312, and fourth lens section 322) in the lens unit group 3. This allows the light from each light source in the light source group 2 to have a larger refraction angle in the lens section, which is beneficial for adjusting the light emission.

[0081] For example, the refractive index of the transparent adhesive layer 5 is greater than 1.55, and the refractive index of the lens unit group 3 is less than 1.48.

[0082] In some embodiments, such as Figure 1-3 As shown, the display device 100 also includes a frame adhesive 4, which is located between the cover plate 6 and the driving substrate 1 and surrounds the plurality of light source groups 2. This arrangement allows the frame adhesive 4 to seal the surrounding gap between the cover plate 6 and the driving substrate 1, preventing it from being corroded by water and oxygen.

[0083] In some examples, each light source in light source group 2 can be an LED light source.

[0084] In some examples, the display device 100 also includes an encapsulation layer 8 located on the side of the light-shielding layer 7 away from the cover plate 6. The encapsulation layer 8 may include an organic insulating layer and an inorganic insulating layer stacked together. The coverage of the organic insulating layer and the inorganic insulating layer can make the display device 100 as a whole have better stability.

[0085] For example, the organic insulating layer can be made using organic materials such as pyrene, while the inorganic insulating layer can be made using materials such as silicon nitride or silicon oxide.

[0086] In some examples, the driving substrate 1 includes a substrate 11 and a circuit layer 12, with the substrate 11 serving as a carrier material so that the circuit layer 12 can be fabricated thereon. The circuit layer 12 connects to each light source in the light source group 2 and controls the on and off of each light source.

[0087] The embodiments of the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A display device, characterized by comprising: include: Drive substrate; A light source group is disposed on one side of the driving substrate, and the light source group includes a first light source and a second light source disposed at intervals; A lens unit assembly includes a first lens unit and a second lens unit, wherein the first lens unit is disposed on the side of the first light source away from the driving substrate, and the second lens unit is disposed on the side of the second light source away from the driving substrate; and, A light-shielding layer is disposed on the side of the lens unit group away from the driving substrate, and the light-shielding layer has multiple light-transmitting gaps; The first lens unit has a first light-incident surface, and the second lens unit has a second light-incident surface. The first lens unit is configured to allow light from the first light source toward the first light-incident surface to exit through the first light-incident gap among the plurality of light-incident gaps and reach the left eye. The second lens unit is configured to allow light from the second light source toward the second light-incident surface to exit through the second light-incident gap among the plurality of light-incident gaps and reach the right eye.

2. The display device according to claim 1, wherein The first lens unit includes a first lens portion, and the first light-incident surface is located on the first lens portion; the first lens portion further includes a first light-out surface, and the first light-incident surface is configured such that light from the first light source toward the first light-incident surface enters the first lens portion and is refracted toward the first light-out surface; the first light-out surface is configured such that light passing through the first light-out surface is refracted toward the first light-transmitting gap and exits through the first light-transmitting gap to the left eye; as well as The second lens unit includes a second lens portion, and the second light-incident surface is located on the second lens portion; the second lens portion further includes a second light-out surface, and the second light-incident surface is configured such that light from the second light source toward the second light-incident surface enters the second lens portion and is refracted toward the second light-out surface; the second light-out surface is configured such that light passing through the second light-out surface is refracted toward the second light-transmitting gap and exits through the second light-transmitting gap to the right eye.

3. The display device according to claim 2, characterized in that, The first light-incident surface is a plane, and the first light-exit surface is a concave surface facing the first light source; and / or, The second light-incident surface is a plane, and the second light-exit surface is a concave surface facing the second light source.

4. The display device according to claim 2, characterized in that, The first lens portion further includes a first reflecting surface, and the first incident surface is configured such that light from the first light source toward the first lens portion enters the first lens portion and is refracted toward the first emitting surface and the first reflecting surface, respectively; the first reflecting surface is configured such that light refracted toward the first reflecting surface reflects back toward the first emitting surface; the first emitting surface is configured such that light passing through the first emitting surface is refracted toward the first light-transmitting gap and exits through the first light-transmitting gap to the left eye; and / or, The second lens portion further includes a second reflective surface. The second incident surface is configured such that light from the second light source toward the second lens portion enters the second lens portion and is refracted toward the second emitting surface and the second reflective surface, respectively. The second reflective surface is configured such that light refracted toward the second reflective surface is reflected toward the second emitting surface. The second emitting surface is configured such that light passing through the second emitting surface is refracted toward the second light-transmitting gap and exits through the second light-transmitting gap to the right eye.

5. The display device according to claim 4, characterized in that, The first light-incident surface is a concave surface facing the first light source; the first reflecting surface is a plane, and the first light-emitting surface is a plane; and / or, The second light-incident surface is a concave surface facing the second light source; the second reflective surface is a plane, and the second light-exiting surface is a plane.

6. The display device according to any one of claims 2-5, characterized in that, The first lens unit further includes a third lens section, the third lens section including a third light-incident surface, the third lens section being configured to cause light from the first light source toward the third light-incident surface to exit through the third light-incident gap among the plurality of light-incident gaps; as well as The second lens unit further includes a fourth lens section, which includes a fourth light-incident surface. The fourth lens section is configured to allow light from the second light source toward the fourth light-incident surface to exit through the fourth light-incident gap among the plurality of light-incident gaps.

7. The display device according to claim 6, characterized in that, The first light-transmitting gap, the second light-transmitting gap, the third light-transmitting gap, and the fourth light-transmitting gap share a common light-transmitting gap.

8. The display device according to claim 6, characterized in that, The orthographic projection of the first light source on the light-shielding layer has a first distance from the center point of the first light-transmitting gap, and the orthographic projection of the first light source on the light-shielding layer has a second distance from the third light-transmitting gap, wherein the first distance is smaller than the second distance; as well as The orthographic projection of the second light source on the light-shielding layer has a third distance from the center point of the second light-transmitting gap, and the orthographic projection of the second light source on the light-shielding layer has a fourth distance from the fourth light-transmitting gap, wherein the third distance is smaller than the fourth distance.

9. The display device according to any one of claims 2-5, characterized in that, The first lens unit and the second lens unit are symmetrically arranged about a first plane, which is perpendicular to the line connecting the first light source and the second light source and passes through the midpoint of the line.

10. The display device according to any one of claims 1-5, characterized in that, The display device further includes a cover plate, the lens unit group is disposed on the side of the cover plate close to the driving substrate, and the light-shielding layer is disposed on the side of the cover plate away from the driving substrate.

11. The display device according to any one of claims 1-5, characterized in that, It also includes a cover plate and a frame adhesive. Multiple light source groups and multiple lens unit groups are provided respectively, and the multiple light source groups and multiple lens unit groups correspond one-to-one. The cover plate is located between the light-shielding layer and the multiple lens unit groups, and the frame adhesive is located between the cover plate and the driving substrate and is arranged around the multiple light source groups.

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