Display panel and display device

Abstract

The embodiment of the invention provides a display panel and a display device, and the display panel comprises a driving substrate which comprises a driving circuit, and the surface of the driving circuit is provided with an insulating layer; the first electrodes are arranged on the side, away from the driving substrate, of the insulating layer in an array mode, through holes are formed in the edges of the first electrodes, and the first electrodes are connected with the driving circuit through the through holes; the micro lens is located on the side, away from the driving substrate, of the first electrode and corresponds to the first electrode, and the orthographic projection of the micro lens on the driving substrate at least partially covers the via hole; and the refraction repairing unit corresponds to the first electrode and comprises a refraction surface close to one side of the via hole, and the orthographic projection of the refraction repairing unit on the driving substrate is not overlapped with the orthographic projection of the micro lens on the driving substrate.

Description

Technical Field

[0001] This invention relates to the field of display technology, and in particular to a display panel and display device. Background Technology

[0002] With the continuous development of display technology, silicon-based OLED (Organic Light Emitting Diode) display products have attracted widespread attention due to their advantages such as high resolution, low power consumption, small size, light weight, and high contrast. They have good application prospects in high-resolution near-eye display industries such as wearable devices, industrial security, and medical devices, and are developing towards high color gamut and high brightness.

[0003] Because high-resolution silicon-based OLED designs generally require high brightness, microlenses are incorporated into the product design to enhance brightness. In practical applications, bright spots are easily noticed by users, affecting the display experience. In order to achieve a greater light-gathering effect, the diameter of the microlens is usually larger than the opening of the pixel definition layer. This causes the orthogonal projection of the microlens on the driving substrate to partially or completely cover the via connecting the anode and the driving circuit. When repairing the anode by directly destroying it with a laser, the back diffusion effect of the microlens causes the laser spot to expand, making it impossible to effectively remove the corresponding bright pixel. Therefore, it makes bright spot repair difficult. Summary of the Invention

[0004] The purpose of this invention is to provide a display panel and display device to solve the problem of effectively repairing bright spots in silicon-based OLED display panels. The specific technical solution is as follows:

[0005] A first aspect of this application provides a display panel, comprising:

[0006] A driving substrate, including a driving circuit, wherein an insulating layer is provided on the surface of the driving circuit;

[0007] The first electrode is arrayed on the side of the insulating layer away from the driving substrate, and a via is provided at the edge of the first electrode, through which the first electrode is connected to the driving circuit.

[0008] A microlens is located on the side of the first electrode away from the driving substrate and corresponds to the first electrode. The orthogonal projection of the microlens onto the driving substrate at least partially covers the via.

[0009] The refractive repair unit, corresponding to the first electrode, includes a refractive surface near the via, and the orthographic projection of the refractive repair unit on the driving substrate does not overlap with the orthographic projection of the microlens on the driving substrate.

[0010] In some embodiments, the refractive repair unit is disposed in the same layer as the microlens, and the refractive surface includes a first refractive surface and a second refractive surface. The first refractive surface is located on the side of the refractive repair unit away from the driving substrate and extends obliquely away from the microlens and the driving substrate along the end facing the microlens. The second refractive surface is located on the side of the refractive repair unit facing the driving substrate and is parallel to the driving substrate.

[0011] In some embodiments, the refractive repair unit is disposed in the same layer as the microlens, and the refractive surface includes a first refractive surface and a second refractive surface. The first refractive surface is located on the side of the refractive repair unit facing the driving substrate and extends obliquely along the end facing the microlens in a direction away from the microlens and close to the driving substrate. The second refractive surface is located on the side of the refractive repair unit away from the driving substrate and is parallel to the driving substrate.

[0012] In some embodiments, one side of the first refractive surface is filled with an adhesive layer, and a first transparent film layer is provided between the refractive repair unit and the via. The refractive index of the refractive repair unit is greater than the refractive index of the adhesive layer and less than or equal to the refractive index of the first transparent film layer.

[0013] In some embodiments, a first planarization layer and a filter layer are stacked between the first electrode and the microlens, and the refractive repair unit is disposed in the same layer as the first planarization layer.

[0014] The refractive surface includes a first refractive surface and a second refractive surface. The first refractive surface is located on the side of the refractive repair unit away from the driving substrate and extends obliquely away from the microlens and the driving substrate along the end facing the microlens. The second refractive surface is located on the side of the refractive repair unit facing the driving substrate and is parallel to the driving substrate.

[0015] The first planarization layer fills the space between the first refractive surface and the filter layer.

[0016] In some embodiments, an encapsulation layer, a first planarization layer, and a filter layer are stacked between the first electrode and the microlens, and the refractive repair unit is disposed in the same layer as the first planarization layer.

[0017] The refractive surface includes a first refractive surface and a second refractive surface. The first refractive surface is located on the side of the refractive repair unit facing the driving substrate and extends obliquely along the end facing the microlens in a direction away from the microlens and close to the driving substrate. The second refractive surface is located on the side of the refractive repair unit away from the driving substrate and is parallel to the driving substrate.

[0018] The first planarization layer fills the space between the first refractive surface and the encapsulation layer.

[0019] In some embodiments, a second transparent film layer is provided between the refractive repair unit and the via, wherein the refractive index of the refractive repair unit is greater than the refractive index of the first planarization layer and less than or equal to the refractive index of the second transparent film layer.

[0020] In some embodiments, the orthographic projection of the refractive repair unit onto the driving substrate does not overlap with the orthographic projection of the microlens onto the driving substrate.

[0021] In some embodiments, the size of the orthographic projection of the refractive surface onto the driving substrate is larger than the size of the orthographic projection of the via onto the driving substrate.

[0022] A second aspect of this application provides a display device including the display panel described in any of the first aspects.

[0023] Beneficial effects of the embodiments of the present invention:

[0024] The display panel and display device provided in this embodiment of the invention utilize a refractive repair unit disposed in the gap between the microlens and the orthogonal projection of the driving substrate. When a bright spot appears on the display panel and affects the display effect, light perpendicular to the display panel enters the refractive surface of the refractive repair unit. The light is refracted to the via, and the connection between the first electrode in the via and the driving circuit is broken by focusing the light energy, thereby extinguishing the bright spot and effectively achieving bright spot repair.

[0025] Of course, implementing any product or method of the present invention does not necessarily require achieving all of the advantages described above at the same time. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings.

[0027] Figure 1 This is a cross-sectional view of the display panel in some embodiments;

[0028] Figure 2 This is a front view of the display panel 100 according to an embodiment of this application;

[0029] Figure 3 for Figure 2 Enlarged diagram within the black circle;

[0030] Figure 4 Examples of embodiments of this application Figure 3 A schematic diagram of the cross-section at point AA;

[0031] Figure 5 This is a schematic diagram of a repair beam according to an embodiment of this application;

[0032] Figure 6 Examples of embodiments of this application Figure 3 Another cross-sectional diagram at point AA;

[0033] Figure 7 Examples of embodiments of this application Figure 3 Another diagram illustrating the repair light;

[0034] Figure 8 Examples of embodiments of this application Figure 3 Another schematic diagram of the cross-section at point AA;

[0035] Figure 9 Examples of embodiments of this application Figure 3 Another schematic diagram of the cross-section at point AA;

[0036] Figure 10 This is a top view of the first refractive surface in an embodiment of this application.

[0037] The reference numerals in the attached figures are as follows: driving substrate 1, first electrode 2, microlens 3, via 4, refractive repair unit 5, first transparent film layer 6, second transparent film layer 7, insulating layer 8, pixel opening 11, cover plate 12, first refractive surface 51, second refractive surface 52, first planarization layer 61, filter layer 62, adhesive layer 64, encapsulation layer 71, second electrode layer 72, light-emitting layer 73, pixel definition layer 74, display panel 100. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art based on this application are within the scope of protection of the present invention.

[0039] refer to Figure 1As shown, when a bright spot appears on the display panel, a laser light source is used to align with the via 4 between the anode and the driving substrate 1. Because the orthogonal projection of the microlens 3 onto the driving substrate 1 partially or completely covers the via 4 connecting the anode and the driving circuit, the back-diffusion effect of the microlens 3 prevents the laser from effectively converging at the via 4. In other words, the laser cannot effectively focus its energy at the via 4. Figure 1 The middle arrow shows the path of the laser through the microlens 3, which fails to effectively break the connection between the anode and the driving substrate 1 at the via 4, making it impossible to effectively remove the corresponding bright pixel at the point, thus making it difficult to repair the two points.

[0040] Based on this, refer to Figures 2 to 9 As shown, this application embodiment provides a display panel 100, including: a driving substrate 1, including a driving circuit, the surface of which is provided with an insulating layer 8; a first electrode 2, arrayed on the side of the insulating layer 8 away from the driving substrate 1, with a via 4 at the edge of the first electrode 2, the first electrode 2 being connected to the driving circuit through the via 4; a microlens 3, located on the side of the first electrode 2 away from the driving substrate 1, corresponding to the first electrode 2, the orthographic projection of the microlens 3 on the driving substrate 1 at least partially covering the via 4; and a refractive repair unit 5, corresponding to the first electrode 2, including a refractive surface near the via 4, the orthographic projection of the refractive repair unit 5 on the driving substrate 1 not overlapping the orthographic projection of the microlens 3 on the driving substrate 1.

[0041] In an exemplary embodiment, the driving substrate 1 uses single-crystal silicon as the substrate and utilizes complementary metal-oxide-semiconductor (CMOS) technology to form the driving circuit required for the micro-OLED display panel.

[0042] In an exemplary embodiment, the driving substrate 1 may also include pixel circuits and other functional circuits.

[0043] In an exemplary embodiment, the first electrode 2 is the anode.

[0044] In an exemplary embodiment, the via 4 is located at the edge of the first electrode 2.

[0045] In an exemplary embodiment, the insulating layer 8 can be an inorganic non-metallic material, such as silicon nitride (SiNx), silicon oxide (SiOx), etc.

[0046] In an exemplary embodiment, the microlens 3 includes an arcuate surface, which is disposed on the side away from the driving substrate 1.

[0047] It is understandable that silicon-based OLEDs generally use a white light source plus a color filter (CF) layer 62 to achieve color display. The display panel also includes a pixel definition layer 74 disposed on the same layer as the first electrode 2, with pixel openings 11 formed between the pixel definition layers 74, a light-emitting layer 73 including light-emitting units located in the pixel openings 11, and the light-emitting units corresponding to the first electrode 2; and a color filter layer 62 located on the side of the light-emitting layer 73 away from the driving substrate 1. The white light emitted by the light-emitting units passes through the color filter layer 62 and forms light of the corresponding color. In order to improve the display effect, a microlens 3 is disposed on the side of the color filter layer 62 away from the driving substrate 1. In order to pursue a larger light-gathering effect, the diameter of the microlens 3 is larger than the pixel openings 11, so the microlens 3 will partially or completely cover the via 4.

[0048] In an exemplary embodiment, the refractive repair unit 5 is made of a transparent non-metallic material.

[0049] In this embodiment, reference Figure 5 and Figure 7 As shown, by utilizing the refractive repair unit 5 disposed in the gap between the microlens 3 and the orthographic projection of the driving substrate 1, when a bright spot appears on the display panel and affects the display effect, the repair light incident perpendicular to the plane of the driving substrate 1 is refracted by the refractive surface in the refractive repair unit 5. The refracted light passes through the internal transparent parallel film layer and smoothly reaches the via 4 that needs to be broken in a small spot. After focusing the energy, the connection at the via 4 is broken, and the corresponding light-emitting unit no longer emits light, thus achieving the repair work of extinguishing the bright spot. During this process, the repair light does not pass through the microlens 3, and the small spot formed is not affected by the microlens 3.

[0050] In some embodiments, reference Figure 4 and Figure 5 As shown, the refractive repair unit 5 is disposed in the same layer as the microlens 3. The refractive surface includes a first refractive surface 51 and a second refractive surface 52. The first refractive surface 51 is located on the side of the refractive repair unit 5 away from the driving substrate 1, and extends obliquely along the end facing the microlens 3 in a direction away from the microlens 3 and away from the driving substrate 1. The second refractive surface 52 is located on the side of the refractive repair unit 5 facing the driving substrate 1, and the second refractive surface 52 is parallel to the driving substrate 1.

[0051] In an exemplary embodiment, the refractive surface is located at one end of the refractive repair unit 5 facing the microlens 3 and away from the driving substrate 1. That is, the refractive surface extends obliquely from the end of the refractive repair unit 5 facing the microlens 3.

[0052] In an exemplary embodiment, the first refractive surface 51 is adjacent to the second refractive surface 52.

[0053] In an exemplary implementation, reference Figure 4As shown, the distance of the longitudinal direction of the first refractive surface 51 projected onto the driving substrate 1 is D, where D > 0.4 μm.

[0054] In an exemplary implementation, reference Figure 4 As shown, the distance between the side of the refractive repair unit 5 facing the driving substrate 1 and the side away from the driving substrate 1 is h, that is, the height of the refractive repair unit 5 is h, h < 3μm.

[0055] In an exemplary implementation, reference Figure 4 As shown, the first refractive surface 51 and the second refractive surface 52 have an included angle α, where 25° < α < 65°.

[0056] In this embodiment, the corresponding pixel forms a display bright spot. On the side of the first refractive surface 51 away from the driving substrate 1, the repair light incident perpendicular to the driving substrate 1 is refracted by the first refractive surface 51. The refracted light is further refracted by the second refractive surface 52 and incident on the via 4. The final refracted light passes through the transparent parallel film layer between the second refractive surface 52 and the via 4 and successfully reaches the via 4 that needs to be broken with a small light spot. After focusing the energy, the connection at the via 4 is broken, and the corresponding light-emitting unit no longer emits light, thus achieving the repair work of extinguishing the display bright spot. During this process, the repair light does not pass through the microlens 3, and the small light spot formed is not affected by the microlens 3.

[0057] In some embodiments, reference Figure 6 and Figure 7 As shown, the refractive repair unit 5 is disposed in the same layer as the microlens 3. The refractive surface includes a first refractive surface 51 and a second refractive surface 52. The first refractive surface 51 is located on the side of the refractive repair unit 5 facing the driving substrate 1, and extends obliquely along the end facing the microlens 3 in a direction away from the microlens 3 and close to the driving substrate 1. The second refractive surface 52 is located on the side of the refractive repair unit 5 away from the driving substrate 1, and the second refractive surface 52 is parallel to the driving substrate 1.

[0058] In an exemplary embodiment, the first refractive surface 51 is located at one end of the refractive repair unit 5 facing the microlens 3 and on the side facing the driving substrate 1. That is, the first refractive surface 51 extends obliquely from the end of the refractive repair unit 5 facing the microlens 3.

[0059] In an exemplary embodiment, the refractive repair unit 5 presents an undercut structure.

[0060] In an exemplary embodiment, the first refractive surface 51 is adjacent to the second refractive surface 52.

[0061] In an exemplary implementation, reference Figure 6 As shown, the distance of the longitudinal direction of the first refractive surface 51 projected onto the driving substrate 1 is D, where D > 0.4 μm.

[0062] In an exemplary implementation, reference Figure 6 As shown, the distance between the side of the refractive repair unit 5 facing the driving substrate 1 and the side away from the driving substrate 1 is h, that is, the height of the refractive repair unit 5 is h, h < 3μm.

[0063] In an exemplary implementation, reference Figure 6 As shown, the first refractive surface 51 and the second refractive surface 52 have an included angle α, where 25° < α < 65°.

[0064] In this embodiment, the repair light incident perpendicular to the driving substrate 1 is incident perpendicularly onto the second refractive surface 52 through the side of the refractive repair unit 5 away from the driving substrate 1. The repair light does not refract. The repair light is incident on the first refractive surface 51 and refracted by the first refractive surface 51 to the transparent parallel film layer between the first refractive surface 51 and the via 4. After being refracted again by the parallel film layer, it successfully reaches the via 4 that needs to be broken with a small light spot. After focusing the energy, the connection at the via 4 is broken, and the corresponding light-emitting unit no longer emits light, thus achieving the repair work of extinguishing the display bright spot. In this process, the repair light also does not pass through the microlens 3, and the small light spot formed is not affected by the microlens 3.

[0065] In some embodiments, one side of the first refractive surface 51 is filled with an adhesive layer 64, and a first transparent film layer 6 is provided between the refractive repair unit 5 and the via 4. The refractive index of the refractive repair unit 5 is greater than the refractive index of the adhesive layer 64 and less than the refractive index of the first transparent film layer 6.

[0066] In an exemplary embodiment, the refractive index of the refractive repair unit 5 is n1, where 1.0 < n1 < 1.5.

[0067] In an exemplary embodiment, the adhesive layer 64 may cover the microlens 3 and the refractive repair unit 5, that is, the refractive repair unit 5 and the microlens 3 may be immersed to the bottom of the adhesive layer 64.

[0068] In this embodiment, the first refractive surface 51 is located on the side of the refractive repair unit 5 away from the driving substrate 1. The repair light incident perpendicular to the driving substrate 1 passes through the inclined first refractive surface 51. The refractive index of the refractive repair unit 5 is greater than the refractive index of the adhesive layer 64, so that the refracted light is deflected toward the via 4. After the refracted light exits through the second refractive surface 52, the refractive index of the first transparent film layer 6 is greater than or equal to the refractive index of the refractive repair unit 5. The light exiting through the second refractive surface 52 can pass through the first transparent film layer 6 and enter the via 4, or it can be further deflected toward the via 4 after passing through the first transparent film layer 6, so as to successfully reach the via 4, which is at least partially covered by the microlens 3, with a small light spot. After focusing the energy, it breaks the connection between the first electrode 2 and the driving circuit of the via 4, thus achieving the repair work of extinguishing the bright spot. The first refractive surface 51 is located on the side of the refractive repair unit 5 away from the driving substrate 1. Unit 5 faces the side of the driving substrate 1. The repair light perpendicular to the driving substrate 1 is also incident perpendicular to the second refractive surface 52. After reaching the first refractive surface 51, the refractive index of the refractive repair unit 5 is greater than the refractive index of the adhesive layer 64, so that the refracted light is deflected toward the via 4. The light emitted through the first refractive surface 51 passes through the adhesive layer 64 and enters the first transparent film layer 6. The refractive index of the first transparent film layer 6 is greater than or equal to the refractive index of the refractive repair unit 5. Correspondingly, the refractive index of the first transparent film layer 6 is greater than the refractive index of the adhesive layer 64, so that the light passing through the adhesive layer 64 is further deflected toward the via 4 after passing through the first transparent film layer 6, so that it can reach the via 4, which is at least partially covered by the microlens 3, with a small light spot. After focusing the energy, it breaks the connection between the first electrode 2 and the driving circuit of the via 4, thus achieving the repair work of extinguishing the bright spot.

[0069] In some embodiments, reference Figure 8 As shown, a first planarization layer 61 and a filter layer 62 are stacked between the first electrode 2 and the microlens 3. The refractive repair unit 5 is disposed in the same layer as the first planarization layer 61. The refractive surface includes a first refractive surface 51 and a second refractive surface 52. The first refractive surface 51 is located on the side of the refractive repair unit 5 away from the driving substrate 1 and extends obliquely away from the microlens 3 and the driving substrate 1 along the end facing the microlens 3. The second refractive surface 52 is located on the side of the refractive repair unit 5 facing the driving substrate 1 and is parallel to the driving substrate 1. The first planarization layer 61 fills the space between the first refractive surface 51 and the filter layer 62.

[0070] In an exemplary embodiment, the first refractive surface 51 is adjacent to the second refractive surface 52.

[0071] In an exemplary embodiment, the longitudinal projection distance of the first refractive surface 51 onto the driving substrate 1 is D, where D > 0.4 μm.

[0072] In an exemplary embodiment, the distance between the side of the refractive repair unit 5 facing the driving substrate 1 and the side away from the driving substrate 1 is h, that is, the height of the refractive repair unit 5 is h, where h < 3 μm.

[0073] In an exemplary embodiment, the first refractive surface 51 and the second refractive surface 52 have an included angle α, where 25° < α < 65°.

[0074] In an exemplary embodiment, the first transparent film layer 6 in the above embodiments may include a first planarization layer 61 and a filter layer 62.

[0075] In this embodiment, on the side of the first refractive surface 51 away from the driving substrate 1, the repair light incident perpendicular to the driving substrate 1 passes through the adhesive layer 64, the filter layer 62, and the first planarization layer 61 and then enters the first refractive surface 51. After being refracted by the first refractive surface 51, the refracted light is further refracted by the second refractive surface 52 and enters the via 4. Finally, the refracted light passes through the transparent parallel film layer between the second refractive surface 52 and the via 4 and successfully reaches the via 4 that needs to be broken with a small light spot. After focusing the energy, the connection at the via 4 is broken, and the corresponding light-emitting unit no longer emits light, thus achieving the repair work of extinguishing the display bright spot. During this process, the repair light does not pass through the microlens 3, and the small light spot formed is not affected by the microlens 3. At the same time, the first planarization layer 61 is used to fill the space between the first refractive surface 51 and the filter layer 62, that is, to planarize the side of the refractive repair unit 5 away from the driving substrate 1, which facilitates the preparation of subsequent film layers, such as the filter layer 62.

[0076] In some embodiments, reference Figure 9 As shown, an encapsulation layer 71, a first planarization layer 61, and a filter layer 62 are stacked between the first electrode 2 and the microlens 3. The refractive repair unit 5 is disposed in the same layer as the first planarization layer 61. The refractive surface includes a first refractive surface 51 and a second refractive surface 52. The first refractive surface 51 is located on the side of the refractive repair unit 5 facing the driving substrate 1 and extends obliquely along the end facing the microlens 3 in a direction away from the microlens 3 and close to the driving substrate 1. The second refractive surface 52 is located on the side of the refractive repair unit 5 away from the driving substrate 1 and is parallel to the driving substrate 1. The first planarization layer 61 fills the space between the first refractive surface 51 and the encapsulation layer 71.

[0077] In an exemplary embodiment, the first refractive surface 51 is adjacent to the second refractive surface 52.

[0078] In an exemplary implementation, reference Figure 4 As shown, the first refractive surface 51 and the second refractive surface 52 have an included angle α, where 25° < α < 65°.

[0079] In this embodiment, on the side of the second refractive surface 52 away from the driving substrate 1, the repair light incident perpendicularly to the driving substrate 1 passes through the adhesive layer 64, the filter layer 62, and the first planarization layer 61 and is then incident perpendicularly to the second refractive surface 52. After passing through the interior of the refractive repair unit 5 and being refracted by the first refractive surface 51, the refracted light passes through the transparent parallel film layer between the first refractive surface 51 and the via 4. After being refracted again by the parallel film layer, it successfully reaches the via 4 that needs to be broken with a small light spot. After focusing the energy, the connection at the via 4 is broken, and the corresponding light-emitting unit no longer emits light, thus achieving the repair work of extinguishing the display bright spot. During this process, the repair light does not pass through the microlens 3, and the small light spot formed is not affected by the microlens 3. At the same time, the first planarization layer 61 is used to fill the space between the first refractive surface 51 and the encapsulation layer 71, that is, to planarize the side of the refractive repair unit 5 facing the driving substrate 1, so as to prevent air bubbles and other objects from entering and affecting the repair work of the refracted light.

[0080] In some embodiments, a second transparent film layer 7 is provided between the refractive repair unit 5 and the via 4. The refractive index of the refractive repair unit 5 is greater than the refractive index of the first planarization layer 61 and less than or equal to the refractive index of the second transparent film layer 7.

[0081] In an exemplary embodiment, the refractive index of the refractive repair unit 5 is n1, where 1.0 < n1 < 1.5.

[0082] In an exemplary embodiment, the refractive repair unit 5 may be immersed to the bottom of the adhesive layer 64.

[0083] In an exemplary embodiment, the second transparent film layer 7 may include an encapsulation layer 71, a second electrode layer 72, a light-emitting layer 73, a pixel definition layer 74, and a first electrode 2.

[0084] In an exemplary embodiment, the second electrode layer 72 may be a cathode.

[0085] In an exemplary embodiment, the first transparent film layer 6 includes a second transparent film layer 7.

[0086] In this embodiment, the first refractive surface 51 is located on the side of the refractive repair unit 5 away from the driving substrate 1. The repair light rays incident perpendicularly to the driving substrate 1 are incident perpendicularly on the adhesive layer 64, the filter layer 62 and the first planarization layer 61 and then incident on the inclined first refractive surface 51. The refractive index of the refractive repair unit 5 is greater than that of the adhesive layer 64, so that the refracted light rays are deflected toward the via 4. After the refracted light rays exit through the second refractive surface 52, the refractive index of the second transparent film layer 7 is greater than or equal to that of the refractive repair unit 5. The light rays exiting through the second refractive surface 52 can pass through the second transparent film layer 7 and enter the via 4, or they can be further deflected toward the via 4 through the second transparent film layer 7, so as to successfully reach the via 4, which is at least partially covered by the microlens 3, with a small light spot. After focusing the energy, the first electrode 2 and the driving circuit connected to the via 4 are interrupted, thus achieving the repair work of extinguishing the bright spot.

[0087] The first refractive surface 51 is located on the side of the refractive repair unit 5 facing the driving substrate 1. The repair light perpendicular to the driving substrate 1 is incident perpendicularly on the adhesive layer 64, the filter layer 62, the first planarization layer 61, and the second refractive surface 52. After reaching the first refractive surface 51, the refractive index of the refractive repair unit 5 is greater than that of the first planarization layer 61, so that the refracted light is deflected toward the via 4. The light emitted through the first refractive surface 51 passes through the first planarization layer 61 and is incident on the second transparent film layer 7. The refractive index of the second transparent film layer 7 is greater than or equal to that of the refractive repair unit 5. Correspondingly, the refractive index of the second transparent film layer 7 is greater than that of the first planarization layer 61, so that the light passing through the first planarization layer 61 is further deflected toward the via 4 by the second transparent film layer 7, so that it can reach the via 4, which is at least partially covered by the microlens 3, with a small light spot. After focusing the energy, it breaks the connection between the first electrode 2 and the driving circuit of the via 4, thus achieving the repair work of extinguishing the bright spot.

[0088] In some alternative embodiments, the first refractive surface 51 and the second refractive surface 52 overlap in their orthogonal projections onto the driving substrate 1.

[0089] The refractive repair unit 5 can be set in the same layer as the microlens 3 or in the same layer as the first planarization layer 61. The first refractive surface 51 and the second refractive surface 52 overlap in the orthogonal projection of the driving substrate 1. Regardless of whether the first refractive surface 51 is located on the side of the refractive repair unit 5 away from the driving substrate 1 or on the side of the refractive repair unit 5 facing the driving substrate 1, the repair light can be effectively refracted to the via 4 to perform bright spot repair work.

[0090] In some embodiments, the orthographic projection of the refractive repair unit 5 onto the driving substrate 1 does not overlap with the orthographic projection of the microlens 3 onto the driving substrate 1.

[0091] In an exemplary implementation, reference Figure 4and Figure 6 As shown, the refractive repair unit 5 in the orthographic projection of the driving substrate 1 and the microlens 3 in the orthographic projection of the driving substrate 1 have a gap d, where d < 0.5 μm.

[0092] In this embodiment, the orthographic projection of the refractive repair unit 5 onto the driving substrate 1 and the orthographic projection of the microlens 3 onto the driving substrate 1 do not overlap. That is, the orthographic projections of the refractive repair unit 5 and the microlens 3 onto the driving substrate 1 can have a gap or be adjacent. The light emitted by the light-emitting unit passes through the filter layer 62 and exits onto the microlens 3. The light-gathering effect of the microlens 3 improves the display effect of the display panel. During the bright spot repair process, the repair light passes through the refractive surface and is effectively refracted toward the via 4, thereby effectively realizing the bright spot repair work.

[0093] It is understandable that the fabrication process of microlens 3 and refractive repair unit 5 is quite delicate. If the orthographic projection of microlens 3 and refractive repair unit 5 on driving substrate 1 overlaps, the light emitted by the light-emitting unit will be emitted to microlens 3 through the filter layer 62. The overlapping part may affect the light-gathering effect of microlens 3, thereby affecting the display effect of the display panel. During the bright spot repair process, the repair light passes through the refractive surface. The overlapping part will affect the refraction of the repair light to the via 4, thereby affecting the bright spot repair work.

[0094] In some alternative embodiments, the orthographic projection of the refractive repair unit 5 onto the driving substrate 1 is adjacent to the orthographic projection of the microlens 3 onto the driving substrate 1.

[0095] Understandably, when the process precision allows, the orthographic projection of the refractive repair unit 5 onto the driving substrate 1 is adjacent to the orthographic projection of the microlens 3 onto the driving substrate 1. This does not affect the microlens 3 from focusing the light passing through the filter layer 62, nor does it affect the repair light from being refracted by the refractive repair unit 5 to the via 4. At the same time, it can effectively utilize the spatial layout of the display panel.

[0096] In some embodiments, the size of the refractive surface projected onto the driving substrate 1 is larger than the size of the via 4 projected onto the driving substrate 1.

[0097] In an exemplary embodiment, the size of the orthographic projection of the first refractive surface 51 onto the driving substrate 1 is larger than the size of the orthographic projection of the via 4 onto the driving substrate 1.

[0098] In an exemplary implementation, reference Figure 10 As shown, the length d of the first refractive surface 51 长 0.4μm < d 长 <5μm, the width d of the first refractive surface 51 宽 0 μm < d 宽 <2 μm.

[0099] It should be noted that when the cross-section of via 4 is circular, the dimension of via 4 represents the diameter of via 4, and the dimension of the refractive surface represents the length and width of the refractive surface. The length and width of the refractive surface are both greater than the diameter of via 4. When the cross-section of via 4 is square, the dimension of via 4 represents the side length of via 4. The length and width of the refractive surface are both greater than the side length of via 4.

[0100] In this embodiment, the size of the orthographic projection of the refractive surface onto the driving substrate 1 is larger than the size of the orthographic projection of the via 4 onto the driving substrate 1, so that the size of the light spot refracted from the refractive surface onto the via 4 at least covers the via 4, effectively preventing the connection between the first electrode 2 and the driving circuit on the driving substrate 1 in the via 4 from being completely and effectively broken, thus preventing the bright spots from being effectively repaired.

[0101] In some embodiments, a cover plate 12 is provided on the side of the microlens 3 away from the driving substrate 1, and an adhesive is filled between the cover plate 12 and the microlens 3.

[0102] In an exemplary embodiment, the cover plate is made of a transparent material.

[0103] Based on the same inventive concept, this application provides a display device including the display panel described in any of the above embodiments.

[0104] In some exemplary embodiments, the display device may be any product or component with display function, such as an augmented reality (AR) display, a virtual reality (VR) display, a mixed reality (MR) display, a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital camera, or a navigator. This embodiment does not specifically limit this.

[0105] It should 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 a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. 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.

[0106] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. A display panel, characterized in that, include: A driving substrate, including a driving circuit, wherein an insulating layer is provided on the surface of the driving circuit; The first electrode is arrayed on the side of the insulating layer away from the driving substrate, and a via is provided at the edge of the first electrode, through which the first electrode is connected to the driving circuit. A microlens is located on the side of the first electrode away from the driving substrate and corresponds to the first electrode. The orthogonal projection of the microlens onto the driving substrate at least partially covers the via. The refractive repair unit, corresponding to the first electrode, includes a refractive surface near the via, and the orthographic projection of the refractive repair unit on the driving substrate does not overlap with the orthographic projection of the microlens on the driving substrate.

2. The display panel according to claim 1, characterized in that, The refractive repair unit is disposed in the same layer as the microlens. The refractive surface includes a first refractive surface and a second refractive surface. The first refractive surface is located on the side of the refractive repair unit away from the driving substrate and extends obliquely away from the microlens and the driving substrate along the end facing the microlens. The second refractive surface is located on the side of the refractive repair unit facing the driving substrate and is parallel to the driving substrate.

3. The display panel according to claim 1, characterized in that, The refractive repair unit is disposed in the same layer as the microlens. The refractive surface includes a first refractive surface and a second refractive surface. The first refractive surface is located on the side of the refractive repair unit facing the driving substrate and extends obliquely along the end facing the microlens in a direction away from the microlens and close to the driving substrate. The second refractive surface is located on the side of the refractive repair unit away from the driving substrate and is parallel to the driving substrate.

4. The display panel according to claim 2 or 3, characterized in that, One side of the first refractive surface is filled with an adhesive layer, and a first transparent film layer is provided between the refractive repair unit and the via. The refractive index of the refractive repair unit is greater than the refractive index of the adhesive layer and less than or equal to the refractive index of the first transparent film layer.

5. The display panel according to claim 1, characterized in that, A first planarization layer and a filter layer are stacked between the first electrode and the microlens, and the refractive repair unit is disposed in the same layer as the first planarization layer; The refractive surface includes a first refractive surface and a second refractive surface. The first refractive surface is located on the side of the refractive repair unit away from the driving substrate and extends obliquely away from the microlens and the driving substrate along the end facing the microlens. The second refractive surface is located on the side of the refractive repair unit facing the driving substrate and is parallel to the driving substrate. The first planarization layer fills the space between the first refractive surface and the filter layer.

6. The display panel according to claim 1, characterized in that, An encapsulation layer, a first planarization layer, and a filter layer are stacked between the first electrode and the microlens, and the refractive repair unit is disposed in the same layer as the first planarization layer. The refractive surface includes a first refractive surface and a second refractive surface. The first refractive surface is located on the side of the refractive repair unit facing the driving substrate and extends obliquely along the end facing the microlens in a direction away from the microlens and close to the driving substrate. The second refractive surface is located on the side of the refractive repair unit away from the driving substrate and is parallel to the driving substrate. The first planarization layer fills the space between the first refractive surface and the encapsulation layer.

7. The display panel according to claim 5 or 6, characterized in that, A second transparent film layer is provided between the refractive repair unit and the via. The refractive index of the refractive repair unit is greater than the refractive index of the first planarization layer and less than or equal to the refractive index of the second transparent film layer.

8. The display panel according to claim 1, characterized in that, The orthographic projection of the refractive repair unit onto the driving substrate does not overlap with the orthographic projection of the microlens onto the driving substrate.

9. The display panel according to claim 1, characterized in that, The size of the refractive surface projected onto the driving substrate is larger than the size of the via projected onto the driving substrate.

10. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 9.

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