A display panel and display device

Abstract

This invention provides a display panel and display device, relating to the field of display technology. The display panel includes a cover plate, an array layer located on one side of the cover plate, multiple light-emitting units located on the side of the array layer opposite to the cover plate, and a focusing and reflecting assembly located on the side of the light-emitting units opposite to the array layer. At least three light-emitting units and adjacent traces enclose a target area. The focusing and reflecting assembly includes a recessed portion corresponding to the target area and a protruding portion on the bottom surface of the recessed portion. The inner sidewall of the recessed portion includes multiple first reflective surfaces whose dimensions gradually increase in a first direction, and the outer sidewall of the protruding portion includes multiple second reflective surfaces whose dimensions gradually decrease in the first direction. This application can guide large-angle emitted light rays around the traces and light-emitting units to a concentrated emission direction through the synergistic effect of the two levels of reflective surfaces, effectively improving light extraction efficiency and reducing light energy waste.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a display panel and display device. Background Technology

[0002] Micro-LED (Micro Light Emitting Diode) display technology is considered the core development direction of next-generation display technology due to its advantages such as high brightness, high contrast, low power consumption and long lifespan. It is widely used in high-end electronic products such as mobile phones, tablets, wearable devices and automotive displays.

[0003] However, in existing technologies, including but not limited to the light-emitting units of Micro-LED chips, the light emission angle distribution range is relatively large, resulting in a large amount of wide-angle emitted light that cannot be effectively utilized. Especially in applications where the light is viewed from the front, these wide-angle rays often illuminate non-display areas or are blocked by the wiring inside the panel and the light-emitting units themselves, resulting in wasted light energy. At the same time, for applications that require near-parallel light emission, existing optical structures are unable to effectively redirect the originally wide-angle diverging light to a direction close to the normal direction for emission.

[0004] In summary, existing technologies suffer from the problem that the large-angle light emission of the light-emitting units is not effectively utilized. In particular, due to the array layer wiring and the obstruction of the light-emitting units, some light is blocked or wasted, making it impossible to achieve high-efficiency and high-directional light emission, resulting in poor display effects of the display panel. Summary of the Invention

[0005] In view of the above problems, this application provides a display panel and display device to improve the display effect of the display panel. The specific solution is as follows:

[0006] A first aspect of this application provides a display panel, the display panel comprising:

[0007] Cover plate;

[0008] An array layer located on one side of the cover plate; the array layer includes a circuit structure;

[0009] Multiple light-emitting units located on the side of the array layer away from the cover plate; the light-emitting units are electrically connected to the circuit structure;

[0010] A light-concentrating and reflective component located on the side of multiple light-emitting units away from the array layer;

[0011] In the circumferential direction parallel to the plane where the cover plate is located, at least three light-emitting units and the wiring between two adjacent light-emitting units form the target area;

[0012] In the first direction, the light-concentrating reflective assembly includes a groove portion corresponding to the target area, and the inner sidewall of the groove portion includes a plurality of first reflective surfaces; in the first direction, the size of the groove portion gradually increases; the first direction is perpendicular to the plane where the cover plate is located and points from the light-concentrating reflective assembly to the cover plate;

[0013] The light-concentrating reflective assembly also includes a protrusion on the bottom surface of the recessed portion, the outer wall of the protrusion including a plurality of second reflective surfaces, and the size of the protrusion gradually decreases in the first direction.

[0014] Optionally, in the above display panel, the end of the protruding portion facing the array layer is flat, concave, or convex.

[0015] Optionally, in the above display panel, the height of the protruding part is H1, and the depth of the recessed part is H2;

[0016] Where H1 > H2.

[0017] Optionally, in the above-mentioned display panel, multiple first reflective surfaces surround to form an arc surface.

[0018] Optionally, in the above-mentioned display panel, multiple second reflective surfaces surround to form an arc surface.

[0019] Optionally, in the above-mentioned display panel, the light-concentrating reflective assembly also includes a common portion located between two adjacent recessed portions;

[0020] In the first direction, the orthographic projection of the common part overlaps with the orthographic projection of the wiring, and also overlaps with the orthographic projection of the light-emitting unit;

[0021] The side of the common part facing the array layer can be flat, concave, or convex.

[0022] Optionally, in the above-mentioned display panel, the width of the common part gradually decreases along the length extension direction of the common part.

[0023] Optionally, in the above display panel, in the first direction, the orthographic projection of the common part is an N-sided polygon, where N ≥ 3 and N is a positive integer.

[0024] Optionally, in the aforementioned display panel, at least two of the multiple common portions in the light-concentrating reflective assembly have different orthographic projection patterns in the first direction.

[0025] Optionally, in the above display panel, in the first direction, the orthographic projection of the groove portion is an M-sided polygon, where M ≥ 3 and M is a positive integer.

[0026] Optionally, in the above-mentioned display panel, at least two of the recessed portions in the light-concentrating reflective assembly have different orthographic projection patterns in the first direction.

[0027] Optionally, in the above-mentioned display panel, in the first direction, the orthographic projection pattern of the recessed portion is the same as the orthographic projection pattern of the raised portion.

[0028] Optionally, in the above-described display panel, the bottom surface of the recessed portion includes a spaced area surrounding the raised portion.

[0029] Optionally, in the above-mentioned display panel, the spacing area includes a plurality of first recessed units and / or a plurality of first raised units.

[0030] Optionally, in the above-mentioned display panel, among the multiple recessed portions in the light-concentrating reflective assembly, a portion of the spaced area includes a first recessed unit, and another portion of the spaced area includes a first protruding unit.

[0031] Optionally, in the above-described display panel, the first reflective surface includes a plurality of second recessed units and / or a plurality of second raised units.

[0032] Optionally, in the above-mentioned display panel, among the plurality of first reflective surfaces, a portion of the first reflective surfaces includes a second groove unit, and another portion of the first reflective surfaces includes a second protrusion unit.

[0033] Optionally, in the above-mentioned display panel, the second reflective surface includes a plurality of third recessed units and / or a plurality of third raised units.

[0034] Optionally, in the above-mentioned display panel, among the plurality of second reflective surfaces, a portion of the second reflective surfaces includes a third groove unit, and another portion of the second reflective surfaces includes a third protrusion unit.

[0035] Optionally, in the above-mentioned display panel, the display panel further includes:

[0036] A metal film layer located on the surface of the light-concentrating reflector facing the array layer;

[0037] Anti-polarizing film located between the cover plate and the array layer.

[0038] Optionally, in the above-mentioned display panel, the display panel further includes:

[0039] A buffer pillar structure located between the light-concentrating reflector and the array layer.

[0040] Optionally, in the above-mentioned display panel, the display panel further includes:

[0041] A high-refractive-index material is located between the concentrating reflector and the array layer; the refractive index of the high-refractive-index material is greater than that of the concentrating reflector.

[0042] Optionally, in the above display panel, the high refractive index material is a liquid material or a solid material.

[0043] Optionally, in the above display panel, the light-emitting unit includes a red sub-light-emitting unit, a green sub-light-emitting unit, and a blue sub-light-emitting unit;

[0044] The lines connecting the geometric centers of the red, green, and blue sub-light-emitting units form a virtual triangle.

[0045] Optionally, in the above display panel, the red sub-light-emitting unit and the green sub-light-emitting unit are both located on one side of the blue sub-light-emitting unit, and are arranged sequentially in the length extension direction of the blue sub-light-emitting unit;

[0046] In two adjacent light-emitting units, the length extension direction of one blue sub-light-emitting unit intersects the length extension direction of the other blue sub-light-emitting unit.

[0047] Based on the same inventive concept, a second aspect of this application provides a display device, which includes any of the above-described display panels.

[0048] By employing the above technical solution, this application provides a display panel and display device. A highly efficient composite reflective optical path is constructed by setting a light-gathering and reflective component with a specific spatial configuration on the side of the light-emitting unit facing away from the array layer. Based on a target area enclosed by at least three light-emitting units and adjacent traces, a groove portion with gradually increasing size is provided in a first direction. On this basis, a protrusion portion with gradually decreasing size is provided on the bottom surface of the groove portion. One of the multiple first reflective surfaces of the groove portion and the multiple second reflective surfaces of the protrusion portion can capture large-angle light emitted by the light-emitting unit over a wide area and perform initial reflection. The other reflective surface performs secondary reflection and path reconstruction on light that may still propagate towards the traces or light-emitting unit. Through the nested structural design of the groove portion and the protrusion portion, a complete optical path control closed loop is formed. This not only optimizes the light propagation path at the microscopic level but also achieves the redistribution and focusing of light energy at the system level, demonstrating excellent structural integrity and systemic advantages. Attached Figure Description

[0049] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale.

[0050] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of the present invention;

[0051] Figure 2 This is a schematic diagram of the connection between a light-emitting unit and a wiring provided in an embodiment of the present invention;

[0052] Figure 3 This is a top view structural diagram of a display panel provided in an embodiment of the present invention;

[0053] Figure 4 This is a partial perspective view of a display panel provided in an embodiment of the present invention;

[0054] Figure 5 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0055] Figure 6 This is a schematic diagram of the structure of another display panel provided in an embodiment of the present invention;

[0056] Figure 7 This is a schematic diagram of the structure of another display panel provided in an embodiment of the present invention;

[0057] Figure 8 This is a top view schematic diagram of another display panel provided in an embodiment of the present invention;

[0058] Figure 9 A top view of another display panel provided in an embodiment of the present invention;

[0059] Figure 10 This is a schematic diagram of the arrangement of sub-light-emitting units in a light-emitting unit provided in an embodiment of the present invention;

[0060] Figure 11 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention. Detailed Implementation

[0061] The embodiments of this application are described below with reference to the accompanying drawings. The terminology used in the implementation section of this application is only for explaining specific embodiments and is not intended to limit the application. Those skilled in the art will recognize that, with technological advancements and the emergence of new scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0062] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0063] It should be noted that the directional terms appearing in this invention are based on the relative positional relationships shown in the accompanying drawings and should not be taken as absolute limitations on this application.

[0064] Various modifications and variations can be made to this invention without departing from its spirit or scope, as will be apparent to those skilled in the art. Therefore, this invention is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in this invention can be combined with each other without contradiction.

[0065] refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of the present invention, with reference to... Figure 2 , Figure 2 This is a schematic diagram of the connection between a light-emitting unit and a wiring provided in an embodiment of the present invention, with reference to... Figure 3 , Figure 3 This is a top view schematic diagram of a display panel provided in an embodiment of the present invention, with reference to... Figure 4 , Figure 4 This is a partial perspective view of a display panel provided in an embodiment of the present invention. The display panel provided in this embodiment includes: a cover plate 11; an array layer 12 located on one side of the cover plate 11; the array layer 12 including a circuit structure; a plurality of light-emitting units 13 located on the side of the array layer 12 opposite to the cover plate 11; the light-emitting units 13 being electrically connected to the circuit structure; and a light-concentrating and reflective assembly 14 located on the side of the plurality of light-emitting units 13 opposite to the array layer 12.

[0066] Among them, such as Figure 2 As shown, in a circumferential direction parallel to the plane where the cover plate 11 is located, at least three of the light-emitting units 13 and the wiring L1 between two adjacent light-emitting units 13 form a target area 15.

[0067] like Figure 1 , Figure 3 and Figure 4 As shown, in the first direction X, the light-concentrating reflective assembly 14 includes a groove portion 16 corresponding to the target area 15, and the inner sidewall of the groove portion 16 includes a plurality of first reflective surfaces 17; in the first direction X, the size of the groove portion 16 gradually increases; the first direction X is perpendicular to the plane where the cover plate 11 is located, and is pointed from the light-concentrating reflective assembly 14 to the cover plate 11.

[0068] The light-concentrating reflective assembly 14 also includes a protrusion 18 located on the bottom surface of the groove portion 16. The outer wall of the protrusion includes a plurality of second reflective surfaces 19, and the size of the protrusion 18 gradually decreases in the first direction X.

[0069] It should be noted that the cover plate 11 can be a transparent substrate, and its material can be glass, quartz, or transparent polymer material, etc., which is not specifically limited in this embodiment. The cover plate 11 is located on the outermost side of the display panel and is used to protect the internal structure and provide a flat light-emitting surface. In the first direction X, the cover plate 11 is disposed opposite to the array layer 12, and light passes through at least the cover plate 11 before emitting.

[0070] The array layer 12 is located on one side of the cover plate 11, and it can be a thin-film transistor backplane or other driving circuit layer formed by semiconductor technology. The array layer 12 contains circuit structures, which can refer to structures such as wires, electrodes, or transistors used to control the brightness and grayscale of the light-emitting unit 13. The specific arrangement of the circuit structure can be set according to the actual situation, for example, it can be arranged in a matrix. The function of the array layer 12 is to provide electrical signal driving for the light-emitting unit 13, but it itself and its internal wiring may block light.

[0071] The light-emitting unit 13 is located on the side of the array layer 12 away from the cover plate 11 and is electrically connected to the circuit structure. The light-emitting unit 13 can refer to a Micro-LED light-emitting unit, a Mini-LED light-emitting unit, or other types of miniature light-emitting diodes. There can be multiple light-emitting units 13, which can be distributed on the array layer 12 according to a certain pixel arrangement rule. The light-emitting unit 13 emits light after being powered on, and its light emission angle range is relatively wide, including both vertically upward light and light with a large angle of inclination. The connection method between the light-emitting unit 13 and the circuit structure can be flip-chip bonding, upright bonding, or other conventional connection methods, which are not specifically limited in this embodiment.

[0072] The focusing and reflecting component 14 is located on the side of the plurality of light-emitting units 13 facing away from the array layer 12. The focusing and reflecting component 14 can refer to an optical element with a specific micro-nano structure. Its material can be transparent resin, polymer, or glass, etc., and its surface can be coated with a metal reflective film to enhance reflectivity. It can also work using the principle of total internal reflection. The core function of the focusing and reflecting component 14 is to reflect and guide the light emitted by the light-emitting units 13, especially to reflect large-angle light that might otherwise be directed to the side or blocked back to the front light-emitting direction.

[0073] like Figure 2As shown, in a circumferential direction parallel to the plane of the cover plate 11, at least three light-emitting units 13 and the wiring L1 between adjacent light-emitting units 13 enclose a target area 15. The target area 15 can refer to a closed or semi-closed geometric area defined by the spatial positions of the light-emitting units 13 and the wiring L1 between them. For example, if three light-emitting units 13 are arranged in a triangle, they and the wiring L1 connecting them together form a triangular target area; if four light-emitting units 13 are arranged in a rectangle, they form a rectangular target area. The wiring L1 is part of the circuit structure and is used to transmit electrical signals; it is typically located between the light-emitting units 13. The definition of the target area 15 is to determine the positional correspondence of specific structures in the focusing and reflecting assembly 14, ensuring that the focusing and reflecting assembly 14 can accurately cover the light-emitting units 13 and their gap areas, thereby achieving effective control of light.

[0074] In the first direction X, the focusing and reflecting assembly 14 includes a recessed portion 16 corresponding to the target area 15. The first direction X is perpendicular to the plane of the cover plate 11 and points from the focusing and reflecting assembly 14 to the cover plate 11, which is approximately the direction in which the light is finally emitted. The recessed portion 16 can refer to a structure that is recessed downward on the surface of the focusing and reflecting assembly 14, the shape and size of which match the target area 15. The inner sidewall of the recessed portion 16 includes a plurality of first reflecting surfaces 17, which can refer to several planes or curved surfaces that form the sidewall of the recess, and they are inclined towards the center of the recess. In the first direction X, the size of the recessed portion 16 gradually increases, forming a flared structure. This flared structure is beneficial for receiving large-angle light from the light-emitting unit 13 and guiding it to the first reflecting surface 17 for reflection. The first reflecting surface 17 cooperates with the light-emitting unit 13 to reflect the incident large-angle light for the first time, changing its direction and causing it to propagate in the first direction X.

[0075] The focusing and reflecting assembly 14 also includes a protruding portion 18 located on the bottom surface of the recessed portion 16. The protruding portion 18 can refer to a structure that protrudes upward from the bottom of the recess toward the light-emitting unit 13. The outer wall of the protruding portion 18 includes multiple second reflecting surfaces 19. In the first direction X, the size of the protruding portion 19 gradually decreases, forming a conical or tower-like structure. The second reflecting surfaces 19 work in conjunction with the first reflecting surface 17. For example, when light is reflected by the first reflecting surface 17, if it may still be blocked from reaching the wiring L1 or the light-emitting unit 13 body, this light will be incident on the second reflecting surfaces 19 of the protruding portion 18. The second reflecting surfaces 19 perform secondary reflection of the light, further adjusting the light path so that the light bypasses the obstacle and finally exits along the first direction X. This nested composite reflection structure of recess and protrusion achieves multiple reconstructions of the light path through a two-stage reflection mechanism, significantly reducing light energy loss.

[0076] Specifically, in this embodiment of the invention, a specific light-concentrating and reflecting component 14 is provided below the light-emitting unit 13 to effectively collect and reflect the large-angle light emitted by the light-emitting unit 13, so that it bypasses the obstruction of the wiring L1 and the light-emitting unit 13 itself and is concentrated and emitted in front, thereby improving the light utilization rate and display effect.

[0077] In other words, the technical solution of this application constructs a composite reflection structure that combines a groove portion 16 and a protrusion portion 18 based on the positioning of the target area 15. The light receiving range is expanded by the gradually expanding shape of the groove portion 16, and the reflection is corrected by the gradually contracting shape of the protrusion portion 18. The two are closely coupled in space and work together to affect the light field distribution in the target area 15. Through this reconstruction of the multi-level reflection path, large-angle light that might have been wasted or blocked is effectively collected and converted into effective light output, thereby improving the overall light extraction efficiency.

[0078] Optionally, in another embodiment of the present invention, in the display panel provided by the present invention, the end of the protruding portion 18 facing the array layer 12 is a plane, a concave surface, or a convex surface.

[0079] For example, such as Figure 1 , Figure 3 and Figure 4 As shown, the example is taken with one end of the protrusion 18 facing the array layer 12 as the plane.

[0080] The end of the protruding portion 18 facing the array layer 12 can refer to the terminal surface of the protruding portion 18 in the direction away from the bottom surface of the recessed portion 16. The geometry of this end face can be set according to actual optical design requirements, for example, it can be a plane, a concave surface, or a convex surface, and this application embodiment does not make any special limitation in this regard. When the end face is a plane, it can serve as a mirror reflecting surface, so that the light incident on the end face is reflected according to a certain law of reflection, which is beneficial to constructing a predictable light path and avoiding light distortion; when the end face is a concave surface, it can converge the incident light, further compress the light emission angle, and improve the light intensity concentration in a specific direction; when the end face is a convex surface, it can diverge the incident light, thereby widening the distribution range of reflected light to match different human eye field angles or numerical aperture requirements of optical systems.

[0081] The end face of the protruding portion 18, together with the second reflective surface 19 defined in the above embodiment, constitutes the complete reflective structure of the protruding portion 18. In a specific implementation, some of the light reflected by the first reflective surface 17 may be transmitted to the area of ​​the protruding portion 18. At this time, the presence of this end face allows the light to be reflected again, thereby bypassing the obstruction area of ​​the trace L1 or the light-emitting unit 13 and transmitting to the light-emitting side of the display panel. The cooperation between this end face and the second reflective surface 19 forms a multi-level reflection control mechanism. By changing the curvature of the end face, the angle distribution and intensity distribution of the final emitted light can be flexibly adjusted to achieve different display effects.

[0082] Specifically, in this embodiment of the invention, the protruding portion 18, as one of the core structures of the light-concentrating and reflecting assembly 14, directly determines the reflection behavior of light in the paraxial region by the shape of its end face facing the array layer 12. If designed as a planar surface, it is suitable for scenarios requiring high image sharpness and strict optical path control; if designed as a concave surface, it is suitable for scenarios requiring high brightness uniformity and narrow viewing angle output; if designed as a convex surface, it is suitable for scenarios requiring a wide viewing angle experience or mitigating edge color shift. This selectivity in end face shape allows the display panel to adapt to a variety of different application scenarios and optical performance requirements.

[0083] In other words, since the end of the protruding part 18 facing the array layer 12 adopts a switchable design of planar, concave or convex surface, it can flexibly adjust the reflection path and distribution state of light according to the optical characteristics of different color sub-pixels or different application scenarios. This solves the technical problem that a single fixed end face shape cannot simultaneously meet multiple contradictory requirements such as high brightness, narrow viewing angle and wide viewing angle, and uniformity, and achieves the technical effect of improving the flexibility and adaptability of the display panel's optical performance.

[0084] Optionally, in another embodiment of the present invention, in the display panel provided by the present invention, the height of the protruding portion 18 is H1, and the depth of the recessed portion 16 is H2; wherein, H1 > H2.

[0085] The height H1 of the protrusion 18 can refer to the vertical distance from its bottom surface to its top surface along the first direction X, perpendicular to the plane of the cover plate 11. The specific value of this height H1 can be set according to actual conditions, for example, it can range from a few micrometers to tens of micrometers; this embodiment does not impose a special limitation on this. As one of the core structures of the light-concentrating and reflecting assembly 14, the protrusion 18 primarily functions to provide a second reflective surface 19 for reflecting or guiding light from the light-emitting unit 13 at a specific angle. In this design, the protrusion 18 works in conjunction with the groove 16, with the protrusion 18 extending upwards above the groove 16, allowing the second reflective surface 19 to be positioned closer to the light-emitting unit 13, thereby expanding its capture range for large-angle emitted light.

[0086] The depth H2 of the groove portion 16 can refer to the vertical distance from its opening end to its bottom surface in the first direction X. The specific value of this depth H2 can also be set according to actual optical design requirements, for example, it can be matched with the size and spacing of the light-emitting units 13; this embodiment does not impose any special limitations on this. The main function of the groove portion 16 is to reflect and converge light through multiple first reflective surfaces 17 on its inner sidewall. The groove portion 16 constitutes the basic recessed structure of the light-concentrating reflective assembly 14, providing a base for the protruding portion 18.

[0087] The relationship H1 > H2 means that the top of the protrusion 18 extends beyond the recess 16 in space. When the light-emitting unit 13 emits high-angle light, if the protrusion 18 is too short, this high-angle light may directly hit the bottom surface of the recess 16 and be absorbed or scattered, or be blocked by the sidewall of the recess and unable to effectively reach the second reflective surface 19. By setting H1 > H2, the protrusion 18 extends significantly in the vertical direction, raising the effective area of ​​the second reflective surface 19, which can directly intercept high-angle light that would otherwise fall into the dead corner at the bottom of the recess. This technical feature works in conjunction with the light-emitting unit 13 and the wiring L1: after the high-angle light is reflected by the second reflective surface 19, its propagation path is changed, allowing it to bypass the wiring or other obstructing structures located below the light-emitting unit 13 and finally exit towards the front of the display panel. This cooperative relationship achieves the functional result of converting potentially wasted high-angle light into effectively emitted light.

[0088] In other words, because the height H1 of the protrusion 18 is greater than the depth H2 of the groove, the protrusion structure 18 has a larger extension range in the vertical direction, which can intercept the large-angle light emitted by the light-emitting unit 13 and guide it to the second reflective surface 19 for reflection. This solves the technical problem that the large-angle emitted light is easily blocked or wasted by the bottom of the groove, and achieves the technical effects of improving the utilization rate of large-angle light, enhancing the ability of light to bypass the traces, and improving the overall display brightness.

[0089] Optionally, in another embodiment of the invention, reference is made to... Figure 5 , Figure 5 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention. In the display panel provided in this embodiment of the present invention, a plurality of first reflective surfaces 17 surround to form an arc surface.

[0090] In this embodiment, multiple first reflecting surfaces 17 surround to form an arc surface. This means that the inner wall of the groove portion 16 is not composed of multiple discrete planes but forms a continuous, smooth curved surface structure. This arc surface can be a part of a sphere, a part of an ellipsoid, a part of a parabola, or any rotationally symmetric smooth surface; this embodiment does not impose any special limitations on this. The arc surface configuration of the first reflecting surface ensures that light incident on this surface can find a matching local normal for reflection at any azimuth angle, thereby eliminating the reflection blind zone, diffraction effect, and energy scattering loss caused by the presence of edges in traditional polyhedral structures.

[0091] This continuous arc surface design avoids disordered scattering of light at the intersection of planes, ensuring the continuity and controllability of the optical path transmission. This allows the light reflected by the first reflecting surface 17 to have a richer angular distribution, providing a good foundation for subsequent optical path adjustments.

[0092] The radius of curvature of the arc surface can be optimized according to the actual required light emission angle distribution. For example, it can be a sphere with constant curvature or an aspherical surface with variable curvature to achieve brightness uniformity within a specific viewing angle range.

[0093] Optionally, in another embodiment of the invention, reference is made to... Figure 6 , Figure 6 This is a schematic diagram of another display panel provided in an embodiment of the present invention. In the display panel provided in this embodiment of the present invention, a plurality of second reflective surfaces 19 surround to form an arc surface.

[0094] Specifically, in this embodiment of the invention, the second reflective surface 19 is not composed of multiple discrete planes spliced ​​together, but rather multiple second reflective surfaces 19 are continuously transitioned and smoothly connected in space, together forming an integral arc surface structure. This arc surface structure can be one of a concave arc surface, a convex arc surface, or an aspherical arc surface, and the specific shape can be set according to the actual situation. For example, it can be a part of a hemisphere or a part of an ellipse. This application embodiment does not make any special limitation in this regard.

[0095] The arc-shaped surface of the second reflective surface 19 has a close system linkage with other structural features of the protrusion 18. Specifically, the arc-shaped second reflective surface 19 is located above the bottom surface of the recess 16 and faces the light-emitting unit 13. When the large-angle light emitted by the light-emitting unit 13 shines on the first reflective surface 17 inside the recess 16 and undergoes the first reflection, the reflected light is projected onto the outer wall of the protrusion 18. Since the second reflective surface 19 is a continuous arc, the normal direction of each point on its surface changes continuously with position. This allows light rays from different directions and at different angles incident on the second reflective surface 19 to obtain a suitable reflection angle according to the local normal at the point of incidence. This cooperation avoids the problem of light scattering or abrupt change in reflection direction caused by the sharp edges between the surfaces of a traditional prism, and achieves smooth beam shaping. Through the above cooperation, the light reflected by the second reflective surface 19 can more concentratedly bypass the blocking area of ​​the trace L1 and the light-emitting unit 13 and be transmitted to the light-emitting side of the display panel, thereby forming a continuous and uniform light distribution.

[0096] In other words, since multiple second reflective surfaces 19 surround to form a continuous arc surface, there are no obvious sharp edges or steps on the outer wall of the protrusion 18. Therefore, the risk of high-order diffraction and light spot splitting caused by discrete plane reflection is eliminated, thereby significantly improving the directional consistency and energy concentration of reflected light and improving the brightness uniformity of the display panel at different viewing angles.

[0097] Optionally, in another embodiment of the invention, reference is made to... Figure 7 , Figure 7 This is a schematic diagram of another display panel provided in an embodiment of the present invention, with reference to... Figure 8 , Figure 8 This is a top view schematic diagram of another display panel provided in an embodiment of the present invention. In the display panel provided in this embodiment of the present invention, the light-concentrating reflective component 14 further includes a common portion 20 located between two adjacent recessed portions 16; in the first direction X, the orthographic projection of the common portion 20 overlaps with the orthographic projection of the trace L1 and also overlaps with the orthographic projection of the light-emitting unit 13; the side of the common portion 20 facing the array layer 12 is a plane, a concave surface, or a convex surface.

[0098] The common part 20 refers to the solid structural area in the focusing and reflecting assembly 14 that connects adjacent recessed portions 16, spatially corresponding to the gap area between the light-emitting units 13. The common part 20 functions as an independent reflection control unit, specifically designed to handle light passing through the gaps in the recesses or diffracting above the trace L1 area, thus solving the light loss problem caused by trace L1 occlusion. In the system linkage, the common part 20, the recessed portion 16, and the protruding portion 18 together form a complete optical reflection network. When light is emitted from the light-emitting unit 13 and illuminates the non-recessed area, the common part 20 receives and reflects this light. Its surface morphology determines the light redirection strategy: if it is planar, it achieves directional reflection to avoid occlusion; if it is concave, it achieves local convergence to increase brightness; if it is convex, it achieves viewing angle expansion to homogenize the light field. Through this cooperation, the common part 20 converts potentially absorbed or scattered ineffective light into effective emitted light, achieving further control of the optical path.

[0099] In practical implementation, the choice of surface morphology depends on the need to control light at a specific angle. If designed as a plane, this plane can be parallel to or at a certain angle to the plane where the array layer 12 is located, so as to reflect large-angle incident light to a preset observation direction; if designed as a concave surface, this concave surface can be spherical or aspherical in shape, used to converge diverging light; if designed as a convex surface, this convex surface can be cylindrical or spherical in shape, used to diffuse concentrated light. This variability in surface morphology allows the common part 20 to adapt to different pixel arrangements and optical design goals, rather than being limited to a single geometric shape.

[0100] The orthographic projection of the common portion 20 in the first direction X overlaps with the orthographic projection of the trace L1, meaning that the common portion 20 at least partially covers the corresponding trace area in the direction perpendicular to the plane of the cover plate 11. The trace L1 is typically located between the light-emitting units 13 and is used to transmit electrical signals; it is opaque and blocks light propagation. The common portion 20 acts as a reflective interface, reflecting light around the edge of the trace L1 and emitting it out, thereby reducing the shadow area caused by the trace L1 and improving the overall aperture ratio and brightness uniformity of the display panel.

[0101] Meanwhile, the orthographic projection of the common portion 20 overlaps with the orthographic projection of the light-emitting unit 13, indicating that the range of the common portion 20 not only covers the wiring but also extends to the edge or peripheral area of ​​the light-emitting unit 13. This arrangement ensures that the large-angle light emitted by the light-emitting unit 13 can be captured by the adjacent common portion 20 and its optical path adjusted, even if it does not directly enter the recess portion 16.

[0102] Specifically, in this embodiment of the invention, when the display panel is working, the light-emitting unit 13 is driven by the circuit structure to emit light, which propagates in various directions. Among them, the light towards the light-concentrating reflective assembly 14 encounters surfaces with different structures. For the light falling into the range of the recessed portion 16, it is reflected multiple times by the first reflective surface 17 and the second reflective surface 19 to adjust the light emission angle; for the light falling into the area between adjacent recessed portions 16, it is received by the common portion 20. The common portion 20 uses its planar, concave, or convex surface characteristics to redirect these lights to the light emission direction, or to other reflective surfaces for further reflection.

[0103] Optionally, in another embodiment of the invention, such as Figure 7 As shown, in the display panel provided in this embodiment of the invention, the width of the common portion 20 gradually decreases in the length extension direction of the common portion 20.

[0104] The width of the common portion 20 can be set according to actual conditions; for example, it can be uniform or it can exhibit a gradual trend along its length. In this embodiment, the width of the common portion 20 gradually decreases along its length, meaning that the structure exhibits an asymmetrical gradient or wedge shape along its extension axis. This gradual width setting makes the surface of the common portion 20 no longer a simple plane of uniform width or a regular curved surface, but rather forms a reflective interface with a specific slope change.

[0105] Specifically, in this embodiment of the invention, when the light emitted by the light-emitting unit 13 propagates to the light-concentrating and reflecting component 14, some of the light will directly illuminate the common portion 20. If the common portion 20 has a uniform width structure, light rays that are incident perpendicularly or at a specific angle may return along the same path and be reabsorbed by the light-emitting unit 13 or the array layer 12, resulting in reduced light efficiency and localized temperature rise. Therefore, in this embodiment of the invention, the width of the common portion 20 gradually decreases in the length extension direction of the common portion 20 to reduce the proportion of the common portion 20 directly below the light-emitting unit 13.

[0106] Optionally, in another embodiment of the present invention, in the display panel provided by the present invention, the orthographic projection pattern of the common part 20 in the first direction X is an N-sided polygon, where N≥3 and N is a positive integer.

[0107] In the first direction X, the orthographic projection of the common part 20 is an N-sided polygon. This means that the projection outline of the common part 20 on the plane perpendicular to the cover plate 11 is a polygon with N sides, where N is a positive integer greater than or equal to 3. This means that the projection can be any polygon such as a triangle, quadrilateral, pentagon, or hexagon. The specific number of sides N of the common part can be set according to actual process requirements, wiring density, and desired light reflection distribution pattern. This application embodiment does not impose any special limitations on this. For example, when the wiring L1 intersects in a grid pattern, the orthographic projection of the common part 20 can be designed as a quadrilateral to match the intersection nodes; when the wiring L1 is arranged at a specific angle, it can also be designed as a triangle or other polygons.

[0108] Optionally, in another embodiment of the present invention, in the display panel provided by the present invention, at least two of the common portions 20 in the light-concentrating reflective assembly 14 have different orthographic projection patterns in the first direction X.

[0109] Among them, at least two common parts 20 have different orthographic projection patterns in the first direction X. This can refer to the common parts 20 located between two adjacent groove parts 16, whose projection shapes in the first direction X, which are perpendicular to the plane where the cover plate 11 is located, are different.

[0110] Specifically, due to the complexity of the width, direction, and relative position of the traces L1 in different areas of the display panel with the surrounding light-emitting units 13, the optical response requirements of each area are different. By setting at least two common parts 20 with different orthographic projection patterns, the light-concentrating reflective assembly 14 can adaptively match the geometric features of the traces L1 at different locations. This configuration allows light to be guided to different emission directions according to the differences in the local environment when reflected by the common parts 20, thereby bypassing the occlusion areas of the traces L1 and the light-emitting units 13. The orthographic projection pattern of the common part can be set according to the actual situation, for example, it can be an N-sided polygon, or a circle, ellipse, or irregular polygon, and this embodiment does not make any special limitation on this. As long as at least two of the multiple common parts 20 of the light-concentrating reflective assembly 14 have inconsistent projection shapes, full-area optical customization can be achieved.

[0111] In other words, because at least two common parts 20 with different orthographic projection patterns are set, the light-concentrating reflective component 14 can provide differentiated reflective interfaces according to the geometric characteristics of the wiring L1 at different positions. This solves the problem of uneven optical response caused by the inability of a single-shaped reflective surface to adapt to complex wiring, and achieves the technical effects of improving the overall light effect of the display panel, improving brightness uniformity, and enhancing compatibility with diverse panel designs.

[0112] Optionally, in another embodiment of the present invention, in the display panel provided by the present invention, the orthographic projection of the groove portion 16 in the first direction X is an M-sided polygon, where M≥3 and M is a positive integer.

[0113] In the first direction X, the orthographic projection of the groove portion 16 is an M-sided polygon, meaning that the projection outline of the groove portion 16 on the plane perpendicular to the cover plate 11 presents a polygonal shape with M sides. The specific shape of this M-sided polygon can be adaptively set according to the arrangement topology of the light-emitting units 13 in actual applications, for example, it can be a triangle, quadrilateral, pentagon, or hexagon, etc., and this embodiment does not impose any special limitations on it. As a key structure in the light-concentrating and reflecting assembly 14 for accommodating and reflecting light, the projection shape of the groove portion 16 directly determines the geometric boundary of the light-receiving area.

[0114] The M-sided projection of the recessed portion 16 has a direct geometric correspondence with the target area 15 defined in the above embodiment. Specifically, the target area 15 is a spatial region enclosed by at least three light-emitting units 13 and the trace L1 between two adjacent light-emitting units 13. To achieve optimal light capture efficiency, the opening profile of the recessed portion 16 is designed to match the shape of the target area 15. For example, when the three light-emitting units 13 are arranged in a triangle, the target area 15 is approximately triangular, and the orthographic projection of the recessed portion 16 can be designed as a triangle; when the four light-emitting units 13 are arranged in a rectangle or square, the target area 15 is approximately quadrilateral, and the orthographic projection of the recessed portion 16 can be designed as a quadrilateral. Through this alignment of shapes, the inner sidewall of the recessed portion 16 can more effectively cover all the light-emitting units 13 within the target area 15, ensuring that large-angle light emitted from the light-emitting units 13 can enter the recessed portion 16 instead of leaking out from the edge of the recess.

[0115] In other words, since the orthographic projection of the groove portion 16 is limited to an M-sided shape that is compatible with the shape of the target area 15 formed by the arrangement of the light-emitting units 13, the geometric contour of the groove can accurately match the spatial distribution topology of the light source. This solves the problem of edge light leakage caused by the mismatch between the shape of the groove and the arrangement of the light source, and achieves the technical effect of maximizing the coverage efficiency of the groove on all the light emitted by the light-emitting units 13 in the target area 15 and improving the light capture rate.

[0116] Optionally, in another embodiment of the present invention, in the display panel provided by the present invention, at least two of the recessed portions 16 in the light-concentrating reflective assembly 14 have different orthographic projection patterns in the first direction X.

[0117] The fact that at least two recessed portions 16 have different orthographic projection patterns in the first direction X means that, within the display area covered by the light-concentrating reflective assembly 14, the recessed portions 16 corresponding to different target areas 15 have different projection shapes in the first direction X, perpendicular to the plane where the cover plate 11 is located. The orthographic projection pattern of the recessed portion 16 can be a triangle, quadrilateral, pentagon, hexagon, or polygon, or it can be a circle, ellipse, or a shape enclosed by an irregular closed curve. This application embodiment does not impose any special limitations on this, and can be set according to actual conditions.

[0118] The differentiated design of the orthographic projection pattern of the recessed portion 16 is determined based on the arrangement, number, and type of the corresponding light-emitting units 13, as well as the distribution environment of the wiring L1 between adjacent light-emitting units 13. For example, when the target area 15 is surrounded by three light-emitting units 13 arranged in a triangle, the orthographic projection pattern of the corresponding recessed portion 16 can be designed as a triangle; when the target area 15 is surrounded by four light-emitting units 13 arranged in a rectangle, the orthographic projection pattern of the corresponding recessed portion 16 can be designed as a quadrilateral or a rectangle. By making the orthographic projection patterns of at least two recessed portions 16 different, the light-concentrating reflective assembly 14 can adapt to the local arrangement characteristics of the light-emitting units 13 at different positions on the display panel.

[0119] Optionally, in another embodiment of the present invention, in the display panel provided by the present invention, the orthographic projection pattern of the groove portion 16 and the orthographic projection pattern of the protrusion portion 18 are the same in the first direction X.

[0120] In the first direction X, the orthographic projection of the groove portion 16 is the same as the orthographic projection of the protrusion portion 18. This can mean that the contour shape of the groove portion 16 in the direction perpendicular to the plane where the cover plate 11 is located is completely consistent with or substantially coincident with the contour shape of the protrusion portion 18 in the same direction.

[0121] Specifically, in this embodiment of the invention, since the groove portion 16 and the protrusion portion 18 have the same orthographic projection pattern in the first direction X, the two-stage reflection structure forms a strict geometric match in space, ensuring that all or most of the light reflected by the first reflective surface can fall into the effective range of the second reflective surface, thereby avoiding light path interruption or invalid reflection; therefore, the light extraction efficiency and brightness uniformity of the display panel are significantly improved, while simplifying the complexity of optical simulation and structural design.

[0122] Optionally, in another embodiment of the present invention, the bottom surface of the recessed portion 16 in the display panel provided by the present invention includes a spaced area surrounding the protruding portion 18.

[0123] The interval region can refer to an annular or quasi-annular area located on the bottom surface of the groove portion 16 and distributed circumferentially around the protrusion portion 18. Spatially, this interval region is located between the first reflecting surface 17 and the second reflecting surface 19, serving as a transition zone connecting the groove sidewall reflecting structure and the protrusion sidewall reflecting structure. The existence of the interval region ensures that the bottom surface of the groove portion 16 is not completely occupied by the protrusion portion 18, but rather leaves a specific geometric space between them. The surface morphology of this interval region can be set according to actual conditions; for example, it can be a plane or a curved surface with slight undulations. This embodiment does not impose any special limitations on this. Functionally, the interval region constitutes a third-level reflecting surface, its role being to receive light rays that are not completely reflected to the light-emitting direction by the first reflecting surface 17 or that leak from the side of the protrusion portion 18. Through cooperation with the first reflecting surface 17 and the second reflecting surface 19, the interval region can change the light transmission path, causing the light to be refracted multiple times in the radial direction and gradually turned towards a direction perpendicular to the cover plate 11, thereby reducing the probability of the light being blocked by the wiring L1 or the light-emitting unit 13.

[0124] Specifically, in the embodiment of the present invention, the multi-level reflection link of the groove sidewall / bottom surface interval area / protruding sidewall effectively extends the optical path and increases the opportunity for light to be controlled, so that the light reflected by the light-concentrating reflection component 14 can bypass the wiring L1 and the light-emitting unit 13 as much as possible before being emitted.

[0125] In other words, constructing a transitional reflection zone between the groove portion 16 and the protrusion portion 18 allows extremely low-angle light that might otherwise be lost at the bottom of the groove to have additional reflection opportunities, thus significantly improving light extraction efficiency.

[0126] Optionally, in another embodiment of the present invention, the interval region in the display panel provided by the present invention includes a plurality of first groove units and / or a plurality of first protrusion units.

[0127] The interval region can refer to an annular or frame-shaped area located on the bottom surface of the groove portion 16 and surrounding the protrusion portion 18. This interval region serves as a transition connecting the groove portion 16 and the protrusion portion 18 in the overall technical solution, and is also a key area for optical path control. In this embodiment, the interval region is not simply a plane, but includes multiple first groove units and / or multiple first protrusion units. A first groove unit can refer to a micro-recessed structure disposed on the surface of the interval region; its shape can be set according to actual conditions, such as a hemispherical pit, a pyramidal pit, or a polygonal pit, etc., which is not specifically limited in this embodiment. A first protrusion unit can refer to a micro-protrusion structure disposed on the surface of the interval region; its shape can also be set according to actual conditions, such as a hemispherical boss, a pyramidal boss, or a polygonal boss, etc. The first groove units and first protrusion units can be integrally formed with the interval region, or they can be attached to the surface of the interval region as independent components.

[0128] The first groove unit and / or the first protruding unit form a close fit with the interval region. Specifically, when the light emitted by the light-emitting unit 13 or the reflected light propagates to the interval region, if the region is provided with a first groove unit, the light will be reflected on the inner wall of the groove after entering the groove, changing the emission angle and forming a local light field confinement effect; if the region is provided with a first protruding unit, the light will be refracted or reflected like passing through a micro prism when it hits the outer wall of the protruding unit, scattering in different directions. The introduction of this microstructure array makes the interval region no longer a single reflective surface, but a composite reflective surface composed of countless tiny reflective units. By adjusting the distribution density, arrangement, and geometric size of the first groove unit and the first protruding unit, the angle distribution of the reflected light can be finely controlled, so that large-angle light that might have been absorbed or wasted is redirected to the effective emission direction, thereby bypassing the blocking area of ​​the wiring and the light-emitting unit.

[0129] In other words, due to the microstructure design of the first groove unit and / or the first protrusion unit introduced in the interval area, the area has multi-dimensional light path control capability, breaking through the limitations of traditional planar reflection; because the microstructure unit provides more reflective surfaces and richer reflection angles, it can effectively capture and redirect light emitted at large angles, allowing it to bypass the blocking area of ​​the trace L1 and the light-emitting unit 13, thereby significantly improving the light extraction efficiency and front brightness of the display panel, while suppressing the interference fringe problem caused by a single reflective surface.

[0130] Optionally, in another embodiment of the present invention, in the display panel provided by the present invention, in the plurality of recessed portions 16 in the light-concentrating reflective assembly 14, a portion of the interval region includes the first recessed unit, and another portion of the interval region includes the first protrusion unit.

[0131] One portion of the interval region includes a first groove unit. This can refer to a groove portion 16 at certain specific locations in the light-concentrating reflective assembly 14, where a downwardly recessed first groove unit is provided on the bottom surface of the groove portion 16 surrounding the protrusion 18 within the interval region. This first groove unit cooperates with the adjacent second reflective surface 19 or first reflective surface 17 to change the reflection path of light in the interval region, so that the light incident on this region is refracted or reflected again and then bypasses the trace L1 or the light-emitting unit 13 before exiting.

[0132] Another portion of the interval area includes a first protruding unit, which may refer to the fact that, in some specific locations of the groove portions 16 of the light-concentrating reflective assembly 14, a first protruding unit is provided in the interval area. This first protruding unit serves as an additional reflective interface, and is linked with the inner sidewall of the groove portion 16 and the outer sidewall of the protruding portion 19 to refocus or guide light that might otherwise be scattered and lost to a preset light-emitting angle.

[0133] Specifically, in this embodiment of the invention, by differentially setting the first groove unit and the first protrusion unit in the interval area of ​​different groove portions 16 of the light-concentrating reflective component 14, fine control of the optical response of different areas of the display panel is achieved.

[0134] Because the spaced areas containing the first groove unit and the first protrusion unit are differently configured in the different groove portions 16 of the light-concentrating reflective component 14, a customized microstructure reflection environment can be provided for the light-emitting units 13 of different colors or positions. This solves the technical problem that a single microstructure is difficult to match multiple light-emitting characteristics at the same time, thereby achieving the technical effects of improving light utilization efficiency, optimizing the light emission angle distribution, and improving the color uniformity and brightness of the display panel.

[0135] Optionally, in another embodiment of the present invention, the first reflective surface 17 in the display panel provided by the present invention includes a plurality of second groove units and / or a plurality of second protrusion units.

[0136] In this application, the first reflective surface 17 can refer to a macroscopic reflective surface located on the inner wall of the groove portion 16 of the light-concentrating reflective assembly 14. In this application, the first reflective surface 17 is not an absolutely smooth plane or a single curved surface, but rather can have microscopic or mesoscopic textured structures, namely second groove units and / or second protrusion units, further formed on its surface. This arrangement makes the first reflective surface 17 appear microscopically uneven. The second groove unit can be a recessed structure formed on the surface of the first reflective surface 17, and its cross-sectional shape can be triangular, trapezoidal, arc-shaped, or irregular. The second protrusion unit can be an upwardly protruding structure formed on the surface of the first reflective surface 17, and its cross-sectional shape can also be triangular, trapezoidal, arc-shaped, or irregular. The second groove unit and the second protrusion unit can be set according to actual conditions; for example, they can be randomly distributed or arranged in a specific array. This application does not impose any special limitations on this.

[0137] There is a close system linkage between the first reflective surface 17 and the second groove unit and the second protrusion unit. The second groove unit and / or the second protrusion unit distributed on it, as a secondary optical modulation structure, work in conjunction with the first reflective surface 17. When light is incident on the first reflective surface 17 with these micro-textures, the light is not only reflected by the macroscopic curvature, but also subjected to multiple refractions, reflections, or scatterings by the surface of the micro-units. Specifically, the second groove unit can form a local light-trapping structure or change the local incident angle, so that light that might have been swept away at a critical angle is recaptured and reflected into the effective light-emitting angle range; the second protrusion unit can act as a microprism, appropriately diffusing or splitting the concentrated reflected beam, avoiding bright spots or narrow viewing angles caused by excessive light concentration. Through this cooperation of macroscopic and microscopic structures, the first reflective surface 17 can more effectively handle incident light from different angles, reducing the problem of low light reflection efficiency at large angles due to an overly smooth surface, thereby improving the overall light extraction efficiency and light emission uniformity.

[0138] In other words, because the micro-texture structure of the second groove unit and / or the second protrusion unit is introduced on the first reflective surface 17, the strict dependence of the traditional smooth reflective surface on the incident angle is broken, so that light rays with different incident angles can find an effective reflection path.

[0139] Optionally, in another embodiment of the present invention, in the display panel provided by the present invention, among the plurality of first reflective surfaces 17, a portion of the first reflective surfaces 17 includes the second groove unit, and another portion of the first reflective surfaces 17 includes the second protrusion unit.

[0140] Specifically, in this embodiment of the invention, second groove units and second protrusion units are differentially provided in multiple first reflective surfaces 17, so that the light-concentrating reflective component 14 can perform targeted reflection control according to the light characteristics of different directions, thereby solving the problems of large-angle light energy waste and low light output efficiency in some directions caused by the single reflective surface structure in the prior art, and achieving the beneficial effects of improving the overall light effect of the display panel, optimizing the uniformity of light output angle distribution, and improving light energy utilization.

[0141] Optionally, in another embodiment of the present invention, the second reflective surface 19 in the display panel provided by the present invention includes a plurality of third groove units and / or a plurality of third protrusion units.

[0142] The second reflective surface 19 can refer to the reflective surface located on the outer wall of the protruding portion 18 of the light-concentrating reflective assembly 14. In this application, the second reflective surface 19 is not an absolutely smooth ideal plane or curved surface, but may include multiple third groove units and / or multiple third protrusion units. These third groove units and third protrusion units constitute the micro-texture structure of the surface of the second reflective surface 19. The third groove unit can refer to the concave microstructure formed on the second reflective surface 19, and its shape can be set according to the actual situation, such as a hemispherical pit, a pyramidal pit, or an irregular depression; the third protrusion unit can refer to the convex microstructure formed on the second reflective surface 19, and its shape can be, for example, a hemispherical protrusion, a pyramidal boss, or an irregular protrusion. The embodiments of this application do not impose special limitations on the specific geometric shape, size, and arrangement density of the third groove units and the third protrusion units.

[0143] The third groove unit and the third protrusion unit are positioned on the second reflective surface 19, forming a system linkage with the protrusion portion 18 and the groove portion 16. For example, when a large-angle light emitted by the light-emitting unit 13 is reflected by the first reflective surface 17 to the second reflective surface 19, if the second reflective surface 19 is a smooth surface, the light may be reflected at a single angle and may be blocked by the trace L1 or other structures. By introducing the third groove unit, the incident light undergoes multiple local reflections on the inner wall of the groove, enhancing the local confinement of the light field and changing the direction of the light's outgoing vector. By introducing the third protrusion unit, the incident light undergoes divergent or directional reflection on different cross-sections of the protrusion, providing microscale directional deflection. This micro-texture structure, combined with the macroscopic protrusion portion 18, disperses or redirects light that might otherwise be concentrated and reflected to a dead angle to the effective light-emitting area, thereby bypassing the obstruction of the trace L1 and the light-emitting unit 13 and improving the light extraction efficiency.

[0144] In other words, since multiple third groove units and / or multiple third protrusion units are set on the second reflective surface 19, it is possible to further provide microscale optical path control capabilities on the basis of macroscopic reflection, thus solving the problem that a single macroscopic reflective surface is difficult to accurately control light rays at small angles.

[0145] Optionally, in another embodiment of the present invention, in the display panel provided by the present invention, among the plurality of second reflective surfaces 19, a portion of the second reflective surfaces 19 includes the third groove unit, and another portion of the second reflective surfaces 19 includes the third protrusion unit.

[0146] Specifically, in this embodiment of the invention, since the third groove unit and the third protrusion unit are differently provided in the multiple second reflective surfaces 19, the second reflective surfaces 19 can be adaptively optically controlled according to the light intensity distribution characteristics in different directions, thereby solving the problem that a single-morphology reflective surface is difficult to match complex light field distribution, and thus achieving the technical effects of improving light reflection efficiency, improving light output uniformity and reducing light spot distortion.

[0147] Optionally, in another embodiment of the present invention, the display panel provided by the present invention further includes: a metal film layer on the surface of the light-concentrating reflective component 14 facing the array layer 12; and an anti-polarizing sheet located between the cover plate 11 and the array layer 12.

[0148] The metal film layer can refer to a highly reflective conductive or non-conductive thin film deposited or bonded to the surface of the light-concentrating reflective component 14 facing the array layer 12. The function of this metal film layer is to act as a back-reflection interface, reflecting light that might otherwise propagate downwards through the light-concentrating reflective component 14 back into the component. This, in conjunction with the first reflective surface 17 and the second reflective surface 19, achieves secondary or multiple reflections of the light, ultimately guiding the light upwards. In specific implementations, the metal film layer is in close contact with the surface of the light-concentrating reflective component. Its material can be aluminum, silver, chromium, or their alloys, or it can be a multilayer dielectric reflective film; this embodiment does not impose any special limitations on this. Its thickness can be set according to actual reflectivity requirements and process conditions, for example, it can range from tens of nanometers to hundreds of micrometers. By setting the metal film layer, the light-concentrating reflective component 14 not only possesses refraction and reflection functions but also has the boundary conditions of total or near-total internal reflection, ensuring that large-angle light emitted by the light-emitting unit 13 is effectively recovered and guided to the front viewing area, avoiding energy waste caused by backlight leakage.

[0149] An anti-polarization filter refers to an optical functional layer disposed between the cover plate 11 and the array layer 12, used to suppress ambient light reflection and improve display contrast. The function of this anti-polarization filter is to absorb or polarize and filter ambient light incident from the outside of the cover plate, preventing glare from being generated and interfering with user viewing after reflection from the circuit structure or metal traces in the array layer. In specific implementations, the anti-polarization filter may include a combination of a linear polarizer and a quarter-wave plate, or it may be a circular polarizer or other composite film layer with anti-reflective function; this application embodiment does not impose any special limitations on this. The anti-polarization filter can be bonded to the cover plate 11 and the array layer 12 using optical adhesive, and its position is strictly limited to the side of the cover plate away from the observer and the side of the array layer facing the observer. Through this setting, after external natural light or indoor lighting enters the display panel, its reflected component is significantly weakened by the polarization conversion and absorption effect of the anti-polarization filter, thereby significantly improving the visibility of the display panel in strong light environments.

[0150] In other words, because a metal film layer is provided on the side of the light-concentrating reflector 14 facing the array layer 12, the downward-propagating light can be forcibly reflected back to the light extraction path, reducing light energy loss and improving the forward light extraction efficiency. At the same time, because an anti-reflection polarizer is provided between the cover plate 11 and the array layer 12, the reflected component of ambient light can be effectively absorbed, reducing the interference of ambient light on the display screen, thereby achieving the technical effect of improving the contrast and visibility of the display panel in bright environments.

[0151] It should be noted that when the display panel does not have a metal film layer, it can emit light from both sides.

[0152] Optionally, in another embodiment of the invention, reference is made to... Figure 9 , Figure 9 This is a top view schematic diagram of another display panel provided in an embodiment of the present invention. The display panel provided in this embodiment further includes a buffer pillar structure 21 located between the light-concentrating reflective component 14 and the array layer 12.

[0153] The buffer pillar structure 21 can refer to a support component disposed between the light-concentrating reflector 14 and the array layer 12, which provides physical isolation and mechanical support between the two. The material of the buffer pillar structure 21 can be set according to the actual situation. For example, it can be a polymer material, resin material, or elastomer material with a specific elastic modulus, or it can be an inorganic non-metallic material or a metallic material with high rigidity. This application embodiment does not make any special limitation in this regard. The shape of the buffer pillar structure 21 can be cylindrical, prismatic, or irregular columnar, and its size and height can be set according to the target gap distance required between the light-concentrating reflector 14 and the array layer 12.

[0154] By setting the buffer pillar structure 21, a stable support point can be formed between the light-concentrating reflective component 14 and the array layer 12, limiting the excessive displacement of the light-concentrating reflective component 14 in the direction perpendicular to the plane of the cover plate 11. At the same time, the buffer pillar structure 21 can absorb the thermal expansion and contraction stress caused by temperature changes or the vibration energy generated by external mechanical impact, preventing the light-concentrating reflective component 14 from undergoing plastic deformation or direct rigid collision with the array layer 12, thereby maintaining the spatial position accuracy of the first reflective surface 17 and the second reflective surface 19 on the light-emitting unit 13 and ensuring the stability of the light reflection path.

[0155] In other words, since a buffer pillar structure 21 is provided between the light-concentrating reflector 14 and the array layer 12, the buffer pillar structure 21, as a mechanical support point and stress buffer medium, can effectively isolate the thermal stress caused by temperature changes and the vibration force caused by external mechanical impact, preventing the light-concentrating reflector 14 from deforming or rigidly colliding with the array layer 12, thereby maintaining the relative positional accuracy between the reflective surface and the light-emitting unit 13, and ensuring the optical performance stability and structural reliability of the display panel during long-term use.

[0156] Optionally, in another embodiment of the present invention, the display panel provided by the present invention further includes: a high refractive index material located between the light-concentrating reflective component 14 and the array layer 12; the refractive index of the high refractive index material is greater than the refractive index of the light-concentrating reflective component 14.

[0157] The high refractive index material can refer to the optical medium layer filled between the light-concentrating reflective component 14 and the array layer 12. Its material can be a liquid material, such as a high refractive index optical adhesive or encapsulating liquid, or a solid material, such as a high refractive index transparent resin film or glass substrate. This application embodiment does not make any special limitation on this.

[0158] Because a high refractive index material with a higher refractive index than the light-concentrating reflector 14 is set between the light-concentrating reflector 14 and the array layer 12, the probability of total internal reflection of the light emitted from the light-emitting unit 13 at the interface is reduced, allowing more large-angle light to enter the light-concentrating reflector 14 and be effectively utilized. This solves the technical problem of wasted large-angle light and achieves the technical effect of improving the overall light efficiency and brightness of the display panel.

[0159] Optionally, in another embodiment of the present invention, the high refractive index material in the display panel provided by the present invention is a liquid material or a solid material.

[0160] When the high-refractive-index material is a liquid, its working principle involves using the fluidity of the liquid to fill the tiny gaps between the focusing and reflecting component 14 and the array layer 12, forming a continuous optical path. The liquid material is uniformly distributed under gravity or capillary action, ensuring the integrity of the light transmission interface. When the high-refractive-index material is a solid, its working principle involves a pre-formed film layer or a cured resin layer occupying the space. The solid material maintains uniform layer thickness due to its own mechanical strength, providing a stable optical environment. Both forms can achieve the functional result of efficiently guiding the light emitted by the light-emitting unit to the focusing and reflecting component for reflection and focusing.

[0161] In other words, by providing two optional high-refractive-index material forms, namely liquid and solid materials, it can meet the needs of different production processes. Liquid materials are suitable for scenarios with extremely high requirements for interface adhesion and good encapsulation conditions, while solid materials are suitable for scenarios with high requirements for structural stability and mass production consistency, thereby improving the flexibility of display panel manufacturing and product reliability.

[0162] Optionally, in another embodiment of the invention, reference is made to... Figure 10 , Figure 10 This is a schematic diagram of the arrangement of sub-light-emitting units in a light-emitting unit according to an embodiment of the present invention. In the display panel provided by the embodiment of the present invention, the light-emitting unit 13 includes a red sub-light-emitting unit 131, a green sub-light-emitting unit 132, and a blue sub-light-emitting unit 133; the line connecting the geometric center of the red sub-light-emitting unit 131, the geometric center of the green sub-light-emitting unit 132, and the geometric center of the blue sub-light-emitting unit 133 forms a virtual triangle.

[0163] The red sub-light-emitting unit 131 and the green sub-light-emitting unit 132 are both located on one side of the blue sub-light-emitting unit 133 and are arranged sequentially in the length extension direction of the blue sub-light-emitting unit 133; in two adjacent light-emitting units 13, the length extension direction of one blue sub-light-emitting unit 133 intersects with the length extension direction of the other blue sub-light-emitting unit 133.

[0164] Among them, the red sub-light-emitting unit 131 can refer to a miniature light-emitting chip that can emit red light, the green sub-light-emitting unit 132 can refer to a miniature light-emitting chip that can emit green light, and the blue sub-light-emitting unit 133 can refer to a miniature light-emitting chip that can emit blue light.

[0165] Specifically, in this embodiment of the invention, the light-emitting unit can be monochrome or colored. If it is colored, the sub-light-emitting units of different colors should be arranged in a triangle. With local adjustments to the pixel direction, the design should be kept as symmetrical as possible relative to RGB to avoid the problem of viewing angle bias, thereby improving the display effect of the display panel.

[0166] Based on the above embodiments of the present invention, a display device is also provided in another embodiment of the present invention, with reference to... Figure 11 , Figure 11 This is a schematic diagram of a display device according to an embodiment of the present invention. The display device 100 includes the display panel described in any of the above embodiments.

[0167] The display panel, as the core imaging and light-emitting component of the display device 100, is configured to receive drive signals and generate image information. In the overall architecture of the display device 100, the display panel can be installed inside the device's housing and electrically connected to conventional electronic components such as the drive circuit, power management module, control motherboard, and external interfaces within the device.

[0168] Compared to existing technologies, the display device 100 uses the aforementioned display panel, thus possessing all the beneficial effects of the aforementioned display panel. That is, it can effectively solve the problem of the large-angle light emission of the light-emitting unit not being effectively utilized, reduce light waste caused by internal structural obstruction, achieve high-efficiency and high-directional light emission, and improve overall brightness performance and optical consistency.

[0169] The above provides a detailed description of the display panel and display device provided by the present invention. 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.

[0170] It should be noted that each embodiment in this specification focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0171] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that elements inherent to a process, method, article, or apparatus that comprises a list of elements, or elements inherent to such processes, methods, articles, or apparatus, are also included. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0172] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display panel, characterized in that, The display panel includes: Cover plate; An array layer located on one side of the cover plate; the array layer includes a circuit structure; Multiple light-emitting units are located on the side of the array layer opposite to the cover plate; the light-emitting units are electrically connected to the circuit structure; A light-concentrating reflective component located on the side of the plurality of light-emitting units facing away from the array layer; In the circumferential direction parallel to the plane where the cover plate is located, at least three of the light-emitting units and the wiring between two adjacent light-emitting units form a target area; In a first direction, the light-concentrating reflective assembly includes a groove portion corresponding to the target area, and the inner sidewall of the groove portion includes a plurality of first reflective surfaces; in the first direction, the size of the groove portion gradually increases; the first direction is perpendicular to the plane where the cover plate is located and is pointed from the light-concentrating reflective assembly to the cover plate; The light-concentrating reflective assembly also includes a protrusion on the bottom surface of the groove portion, the outer wall of the protrusion includes a plurality of second reflective surfaces, and the size of the protrusion gradually decreases in the first direction.

2. The display panel according to claim 1, characterized in that, The end of the protrusion facing the array layer is a plane, a concave surface, or a convex surface.

3. The display panel according to claim 1, characterized in that, The height of the protrusion is H1, and the depth of the groove is H2; Where H1 > H2.

4. The display panel according to claim 1, characterized in that, Multiple first reflective surfaces surround each other to form an arc surface.

5. The display panel according to claim 1, characterized in that, Multiple second reflective surfaces surround each other to form an arc surface.

6. The display panel according to claim 1, characterized in that, The light-concentrating reflective assembly also includes a common portion located between two adjacent recessed portions; In the first direction, the orthographic projection of the common part overlaps with the orthographic projection of the trace, and also overlaps with the orthographic projection of the light-emitting unit; The side of the common portion facing the array layer is a plane, a concave surface, or a convex surface.

7. The display panel according to claim 6, characterized in that, The width of the common portion gradually decreases along its length extension direction.

8. The display panel according to claim 6, characterized in that, In the first direction, the orthographic projection of the common part is an N-sided polygon, where N ≥ 3 and N is a positive integer.

9. The display panel according to claim 6, characterized in that, In the multiple common parts of the light-concentrating reflective assembly, at least two of the common parts have different orthographic projection patterns in the first direction.

10. The display panel according to claim 1, characterized in that, In the first direction, the orthographic projection of the groove portion is an M-sided polygon, where M ≥ 3 and M is a positive integer.

11. The display panel according to claim 1, characterized in that, In the multiple recessed portions of the light-concentrating reflective assembly, at least two of the recessed portions have different orthographic projection patterns in the first direction.

12. The display panel according to claim 1, characterized in that, In the first direction, the orthographic projection of the groove portion is the same as the orthographic projection of the protrusion portion.

13. The display panel according to claim 1, characterized in that, The bottom surface of the groove portion includes a spaced area surrounding the protrusion portion.

14. The display panel according to claim 13, characterized in that, The interval region includes multiple first groove units and / or multiple first protrusion units.

15. The display panel according to claim 14, characterized in that, In the multiple recessed portions of the light-concentrating reflective assembly, a portion of the spaced area includes the first recessed unit, and another portion of the spaced area includes the first protruding unit.

16. The display panel according to claim 1, characterized in that, The first reflective surface includes a plurality of second groove units and / or a plurality of second protrusion units.

17. The display panel according to claim 16, characterized in that, Of the plurality of first reflective surfaces, a portion of the first reflective surfaces includes the second groove unit, and another portion of the first reflective surfaces includes the second protrusion unit.

18. The display panel according to claim 1, characterized in that, The second reflective surface includes a plurality of third groove units and / or a plurality of third protrusion units.

19. The display panel according to claim 18, characterized in that, Of the plurality of second reflective surfaces, a portion of the second reflective surfaces includes the third groove unit, and another portion of the second reflective surfaces includes the third protrusion unit.

20. The display panel according to claim 1, characterized in that, The display panel also includes: A metal film layer located on the surface of the light-concentrating reflective component facing the array layer; An anti-polarizing sheet is located between the cover plate and the array layer.

21. The display panel according to claim 1, characterized in that, The display panel also includes: A buffer pillar structure located between the light-concentrating reflector and the array layer.

22. The display panel according to claim 1, characterized in that, The display panel also includes: A high refractive index material is located between the light-concentrating reflective component and the array layer; the refractive index of the high refractive index material is greater than that of the light-concentrating reflective component.

23. The display panel according to claim 22, characterized in that, The high refractive index material can be a liquid or a solid material.

24. The display panel according to claim 1, characterized in that, The light-emitting unit includes a red sub-light-emitting unit, a green sub-light-emitting unit, and a blue sub-light-emitting unit; The line connecting the geometric centers of the red sub-light-emitting unit, the green sub-light-emitting unit, and the blue sub-light-emitting unit forms a virtual triangle.

25. The display panel according to claim 24, characterized in that, The red sub-light-emitting unit and the green sub-light-emitting unit are both located on one side of the blue sub-light-emitting unit, and are arranged sequentially in the length extension direction of the blue sub-light-emitting unit; In two adjacent light-emitting units, the length extension direction of one blue sub-light-emitting unit intersects the length extension direction of the other blue sub-light-emitting unit.

26. A display device, characterized in that, The display device includes the display panel according to any one of claims 1-25.

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