Display panel and display device

Abstract

The application discloses a display panel and a display device. The display panel comprises a substrate, a pixel definition layer, a light-emitting functional layer, a first micro-prism structure layer, a second micro-prism structure layer and an inorganic encapsulation layer. The pixel definition layer is arranged on the substrate, and the pixel definition layer is divided into multiple partitions. The inside of each partition is hollowed out to form a pixel area. The light-emitting functional layer is arranged in the multiple pixel areas. The first micro-prism structure layer is arranged on the light-emitting functional layer. The second micro-prism structure layer is arranged on the first micro-prism structure layer. The inorganic encapsulation layer is arranged on the second micro-prism structure layer. The first micro-prism structure layer and the second micro-prism structure layer are both organic encapsulation structures, and the refractive index of the second micro-prism structure layer is greater than that of the first micro-prism structure layer. Through the above design, the product power consumption can be reduced and the market competitiveness can be improved under the condition of ensuring the display brightness.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display panel and a display device. BACKGROUND

[0002] Organic Light Emitting Diode (OLED) is a kind of optoelectronic technology that uses organic semiconductor materials to produce reversible color change under current driving to realize multi-color display. OLED display panel has the advantages of thinness, high brightness, active light-emitting, low energy consumption, wide viewing angle, fast response, flexibility, wide working temperature range, etc., and is widely favored in the field of display panels. At present, the conventional manufacturing method of OLED display panel is to limit the material evaporation area by a fine metal mask (FMM), and then complete the light-emitting manufacturing and TFE encapsulation technology (Thin Film Encapsulation).

[0003] However, under a specific material system, the light-emitting efficiency of the light-emitting material is fixed, and the product normal viewing angle light output is also basically stable. If the light output is to be increased, the driving current of the device needs to be increased to achieve an increase in the normal viewing angle light output, so as to achieve the display brightness required by the product. However, this will result in an increase in the overall power consumption of the product, which is not desirable for product development. Therefore, before a new OLED material device system is developed, it is necessary to avoid the increase in product power consumption while ensuring display brightness, which is a major competitive advantage for display products. SUMMARY

[0004] The purpose of the embodiments of the present application is to provide a display panel and a display device, which can reduce product power consumption while ensuring display brightness and improve market competitiveness.

[0005] The embodiments of the present application disclose a display panel, which comprises a substrate, a pixel definition layer, a light-emitting functional layer, a first micro-prism structure layer, a second micro-prism structure layer and an inorganic encapsulation layer. The pixel definition layer is arranged on the substrate, and the pixel definition layer is divided into a plurality of partitions. The inside of each partition is hollowed out to form a pixel area. The light-emitting functional layer is arranged in the plurality of pixel areas. The first micro-prism structure layer is arranged on the light-emitting functional layer. The second micro-prism structure layer is arranged on the first micro-prism structure layer. The inorganic encapsulation layer is arranged on the second micro-prism structure layer. The first micro-prism structure layer and the second micro-prism structure layer are both organic encapsulation structures, and the refractive index of the second micro-prism structure layer is greater than the refractive index of the first micro-prism structure layer.

[0006] Optionally, the first micro-prism structure layer has a refractive index of 1.4-1.6, and the second micro-prism structure layer has a refractive index of 1.7-2.0.

[0007] Optionally, one side of the first micro-prism structure layer facing the second micro-prism structure layer is provided with a plurality of grooves, and one side of the second micro-prism structure layer facing the first micro-prism structure layer is provided with a plurality of protrusions, the material of the protrusions being the same as that of the second micro-prism structure layer, and the protrusions and the grooves correspond to each other.

[0008] Optionally, in the thickness direction of the display panel, the groove wall section of the grooves is arc-shaped, the outer wall section of the protrusions is arc-shaped, and the grooves and the protrusions are attached to each other.

[0009] Optionally, the display panel further comprises a plurality of condenser lenses, the condenser lenses being arranged one by one on the partitions and between the first micro-prism structure layer and the second micro-prism structure layer.

[0010] Optionally, the condenser lenses cover the normal projection of the partitions on the substrate.

[0011] Optionally, the display panel comprises a plurality of micro-tri-prisms, the micro-tri-prisms being arranged on the surface of the condenser lenses, and the apex angles of the micro-tri-prisms being perpendicular to the inorganic encapsulation layer.

[0012] Optionally, the micro-tri-prisms are arranged on at least two sides of the condenser lenses.

[0013] Optionally, on the two sides of the condenser lenses, the height of the micro-tri-prisms gradually increases in the direction from the substrate to the inorganic encapsulation layer.

[0014] Embodiments of the present application also disclose a display device, which comprises a driving circuit and the display panel as described above, and the driving circuit drives the display panel.

[0015] The application has the beneficial effects that: the application adds the first micro-prism structure layer and the second micro-prism structure layer on the light-emitting functional layer, and the refractive index of the second micro-prism structure layer is greater than the refractive index of the first micro-prism structure layer, so that the light emitted by the light-emitting functional layer converges towards the middle area of the display panel after passing through the first micro-prism structure layer and the second micro-prism structure layer, thereby increasing the front light-emitting brightness of the display panel. In this way, the light-emitting brightness of the light-emitting functional layer can be avoided to be increased to reduce the power consumption of the product, thereby improving the market competitiveness of the product. Moreover, the first micro-prism structure layer and the second micro-prism structure layer are the packaging structures of the display panel, and therefore do not increase the thickness of the display panel. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings included are intended to provide a further understanding of the embodiments of the application and constitute a part of the specification, which serve to explain the principles of the application together with the text. Obviously, the accompanying drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings. In the drawings:

[0017] Figure 1 is a schematic diagram of a display panel;

[0018] Figure 2 is a schematic diagram of a first display panel provided by the application;

[0019] Figure 3 is a schematic diagram of a second display panel provided by the application;

[0020] Figure 4 is a schematic diagram of a third display panel provided by the application;

[0021] Figure 5 is a schematic diagram of a fourth display panel provided by the application;

[0022] Figure 6 is based on Figure 5 is an enlarged schematic diagram at A;

[0023] Figure 7 is a schematic diagram of a display device provided by the application.

[0024] Wherein, 10, display device; 20, driving circuit; 30, display panel; 31, substrate; 32, pixel definition layer; 321, support structure; 33, light-emitting functional layer; 34, first micro-prism structure layer; 341, groove; 35, second micro-prism structure layer; 351, protrusion; 36, inorganic encapsulation layer; 37, condenser lens; 38, micro-tri-prism; 39, insulating layer; 40, encapsulation structure; 41, planarization layer; 42, first encapsulation layer; 43, second encapsulation layer; 50, micro-prism structure; 51, high-refractive high-transparent film layer. DETAILED DESCRIPTION

[0025] It needs to be understood that the terms used herein, the specific structures and functional details disclosed, are only for the purpose of describing specific embodiments, and are representative, but the application can be embodied in many alternative forms, and should not be interpreted as being limited to the embodiments described herein.

[0026] In addition, unless otherwise explicitly specified and limited, "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0027] In the OLED display panel, since the light-emitting efficiency of the material is fixed, the product normal viewing angle light output is also basically stable, if you want to increase the normal viewing angle light output and increase the display brightness, you need to increase the driving current to achieve, but this will lead to the increase of the power consumption of the display product, at present Some direction is how to compatible with two kinds of situation, in the case of guaranteeing display brightness, avoid the increase of product power consumption.

[0028] Figure 1 A schematic view of a display panel, as Figure 1 shown, the display panel 30 is an OLED panel, including a substrate 31, a light-emitting functional layer 33, a pixel definition layer 32, an insulating layer 39, an encapsulation structure 40 and a micro-prism structure 50, etc. The light-emitting functional layer 33 and the pixel definition layer 32 are arranged side by side on the substrate 31, the insulating layer 39 is located on the light-emitting functional layer 33 and the pixel definition layer 32, the encapsulation structure 40 and the micro-prism structure 50 are located on the light-emitting side of the light-emitting functional layer 33, and the micro-prism structure 50 is used to collect the light emitted by the light-emitting functional layer 33 to improve the light-emitting brightness of the display panel 30.

[0029] Specifically, the encapsulation structure 40 includes a planar layer 41, a first encapsulation layer 42 and a second encapsulation layer 43. The planar layer 41 is arranged on the light-emitting functional layer 33 and the pixel definition layer 32. The first encapsulation layer 42 is arranged on the planar layer 41. The second encapsulation layer 43 is arranged on the first encapsulation layer 42. The planar layer 41 has a large thickness and is used to form a flat surface. The first encapsulation layer 42 and the second encapsulation layer 43 can be one of an inorganic insulating layer and an organic insulating layer. That is, the first encapsulation layer 42 is an inorganic insulating layer, and the second encapsulation layer 43 is an organic insulating layer. Alternatively, the first encapsulation layer 42 is an organic insulating layer, and the second encapsulation layer 43 is an inorganic insulating layer. The combination of the first encapsulation layer 42 and the second encapsulation layer 43 can better protect the functional devices in the display panel 30.

[0030] The micro-prism structure 50 can be a high-refractive and high-transparent film layer. The micro-prism structure 50 is formed on the second encapsulation layer 43 and performs refractive condensation. Alternatively, the micro-prism structure 50 is a combined structure of the condensing lens 37 and the high-refractive and high-transparent film layer 51. Specifically, a refractive film layer is first formed on the second encapsulation layer 43, and then the refractive film layer is subjected to a patterning process to obtain the condensing lens 37. Then, a high-refractive and high-transparent film layer 51 is formed on the condensing lens 37. The condensing lens 37 and the high-refractive and high-transparent film layer 51 are used to condense the light emitted by the light-emitting functional layer 33, thereby increasing the light output on the front surface of the display panel 30 and reducing the pixel current density to some extent, which optimizes the product power consumption and effectively prolongs the service life of the product.

[0031] The condensing lens 37 is arranged on the pixel definition layer 32 and refracts the light in the non-pixel area to the pixel area, so that the light quantity of the original pixel area is not reduced and the display uniformity is not affected.

[0032] However, the above design easily increases the thickness of the display panel 30, and the condensing effect needs to be improved. Based on this, the embodiment of the application provides a novel display panel.

[0033] As shown in FIG. 1, the display panel 30 includes a substrate 31, a light-emitting functional layer 33, a pixel definition layer 32, an encapsulation structure 40 and a micro-prism structure 50. Figure 2As shown, a new display panel provided in the embodiment of the present application, the display panel 30 comprises a substrate 31, a pixel definition layer 32, a light-emitting functional layer 33, a first micro-prism structure layer 34, a second micro-prism structure layer 35 and an inorganic encapsulation layer 36, the pixel definition layer 32 is arranged on the substrate 31, and the pixel definition layer 32 is divided into a plurality of partitions, and each partition is hollowed out to form a pixel area; the light-emitting functional layer 33 is arranged in the plurality of pixel areas, the first micro-prism structure layer 34 is arranged on the light-emitting functional layer 33, the second micro-prism structure layer 35 is arranged on the first micro-prism structure layer 34, and the inorganic encapsulation layer 36 is arranged on the second micro-prism structure layer 35; wherein the first micro-prism structure layer 34 and the second micro-prism structure layer 35 are both organic encapsulation structures, and the refractive index of the second micro-prism structure layer 35 is greater than the refractive index of the first micro-prism structure layer 34.

[0034] The pixel definition layer 32 (PDL) is used to define and limit the shape and size of the pixel, to ensure that each pixel can work correctly. Specifically, the PDL can achieve accurate alignment and positioning of the pixel, ensure isolation between pixels, prevent crosstalk, and reduce color mixing between adjacent pixels. The pixel definition layer 32 is mainly applied to AMOLED and is made by photolithography process on polyimide (PSPI) material before evaporation. In the embodiment of the present application, the pixel definition layer 32 further comprises a support structure 321 (PS) located thereon.

[0035] The light-emitting functional layer 33 specifically comprises an anode (Anode), a hole injection layer (HIL), a hole transport layer (HTL), a light-emitting auxiliary layer (RGB Prime), an organic light-emitting layer (EML), a hole blocking layer (HBL), an electron transport layer (ETL), an electron injection layer (EIL) and a cathode (Cathode). The organic light-emitting layer functions to convert electrons into light sources, and other organic structures help electrons and holes to flow smoothly.

[0036] The inorganic encapsulation layer 36 can be a one-layer structure, or a film layer structure of two or more layers. When the inorganic encapsulation layer 36 is a two-layer stacked structure, it can be composed of an inorganic insulating layer and an organic insulating layer. Of course, the display panel 30 further comprises a thin film transistor, an insulating layer 39 and other structures, which will not be described in detail here.

[0037] The embodiment of the present application adds the first micro-prism structure layer 34 and the second micro-prism structure layer 35 on the light-emitting functional layer 33, and the refractive index of the second micro-prism structure layer 35 is greater than the refractive index of the first micro-prism structure layer 34, so that the light emitted by the light-emitting functional layer 33 converges towards the middle region of the display panel 30 after passing through the first micro-prism structure layer 34 and the second micro-prism structure layer 35, achieving the effect of increasing the front light-emitting brightness of the display panel 30. In this way, the light-emitting brightness of the light-emitting functional layer 33 can be avoided to be increased in the case of ensuring the front light-emitting brightness of the display panel 30, so as to reduce the power consumption of the product, thereby improving the market competitiveness of the product. Moreover, the first micro-prism structure layer 34 and the second micro-prism structure layer 35 are the packaging structures of the display panel 30 themselves, and the embodiment of the present application does not additionally increase the film layer structure, so as not to cause the thickness of the display panel 30 to increase.

[0038] And compared with the scheme in the prior art Figure 1 , the embodiment of the present application replaces the flat layer 41 in the prior art Figure 1 with the first micro-prism structure layer 34, and the thick flat layer 41 structure is omitted, thereby being conducive to reducing the overall thickness of the display panel 30. Moreover, since the first micro-prism structure layer 34 and the second micro-prism structure layer 35 can simultaneously deflect light, and the second micro-prism structure layer 35 close to the light-emitting surface has a greater deflection effect on light, the light is more concentrated, so that the prism structure in the embodiment of the present application has a better light-converging effect than the prism structure in the prior art Figure 1 .

[0039] Specifically, the refractive index of the first micro-prism structure layer 34 is between 1.4 and 1.6 to meet the requirement of the refractive index of the low-refractive material in the micro-prism structure 50, and the refractive index of the second micro-prism structure layer 35 is between 1.7 and 2.0. Through testing, the inventors find that after the above design, the light emitted by the light-emitting functional layer 33 is more concentrated towards the pixel region, greatly reducing the light radiating towards the pixel definition layer 32 region, thereby achieving the purpose of further improving the light-converging effect.

[0040] Further, as shown in Figure 3 , the display panel 30 further includes a plurality of light-converging lenses 37, which are arranged one by one on the partitions formed by the pixel definition layer 32, and the light-converging lenses 37 are located between the first micro-prism structure layer 34 and the second micro-prism structure layer.

[0041] The embodiment of the present application further adds the light-converging lenses 37 to converge the light radiating into the pixel definition layer 32 region to the pixel region, thereby further improving the brightness of the pixel region.

[0042] The partition is annular structure, surrounding the corresponding pixel area, the condenser lens 37 can be located in the partition on one side, only the light of one side of the pixel total reflection; or, the condenser lens 37 can be located in the partition on the left and right sides or the upper and lower sides, the light of both sides of the pixel total reflection; or, the condenser lens 37 can be located in the partition on three sides or four sides, to more area of light total reflection, further improve the light quantity of the pixel area.

[0043] Optionally, the condenser lens 37 on the substrate 31 on the projection covers the corresponding partition on the substrate 31 on the projection. Through this design, the condenser lens 37 can receive more light, and more light can be converged to the pixel area. Even, the condenser lens 37 on the substrate 31 on the projection can also partially overlap with the light emitting functional layer 33 on the substrate 31 on the projection, so as to total reflect more light.

[0044] In the embodiment of the application, after the design of the pixel definition layer 32, the light emitting functional layer 33 and the insulating layer 39 above them is completed, the first micro prism structure layer 34 is made, the device film layer structure is ensured to be flat, and after the first micro prism structure layer 34 is flat and cured, the condenser lens 37 can be made on the first micro prism structure layer 34 by using photolithography; then the second micro prism structure layer 35 is made, the making of all micro prism structures 50 is completed, and the functions of the first micro prism structure layer 34, the condenser lens 37 and the second micro prism structure layer 35 are realized. After the above film layers are made, the inorganic packaging layer 36 is made, and finally the protection film layer process is completed.

[0045] The height of the first micro prism structure layer 34 is at least greater than the height of the top end of the support structure 321 in the pixel definition layer 32, and the film layer structure is ensured to be flat.

[0046] The manufacturing process of the condenser lens 37 is that: a film layer is deposited on the first micro prism structure layer 34, and then patterned, that is, on the basis of the opening of the pixel definition layer 32, the opening is appropriately expanded, generally by about 1-3 μm, and specifically by 2 μm, to obtain the condenser lens 37. The refractive index of the condenser lens 37 is between 1.4-1.6, which meets the requirement of the low refractive material in the micro prism structure 50. Through the above design of the first micro prism structure layer 34 and the condenser lens 37, the low refractive pattern structure of the micro prism structure 50 can be obtained.

[0047] In the process of forming the second micro-prism structure layer 35, a high-refractive and high-transparent material can be directly deposited by using a photoetching process to complete the fabrication of the second micro-prism structure layer 35. Specifically, high-refractive particles (e.g., ZrO2, etc.) can be mixed when depositing the low-refractive material to achieve high-refractivity while ensuring that the transmittance does not change much. Of course, the second micro-prism structure layer 35 can also be directly deposited by using a high-refractive material.

[0048] The embodiments of the present application mainly adjust the structure of the large-thickness light-out layer to increase the additional light-out adjustment function on the basis of the packaging and light-out functions. In a conventional case, the second micro-prism structure layer 35 is deposited by printing, and the thickness is generally about 30 μm. In addition, the thickness of the second micro-prism structure layer 35 can be reduced to about 5 μm by using a photoetching process. If the micro-prism function of the light-out layer is realized by using the photoetching process, i.e., the combined design of the first micro-prism structure layer 34, the condenser lens 37 and the second micro-prism structure layer 35, the overall thickness can also be reduced by about 5 μm, which is a considerable thinning thickness.

[0049] In the embodiments of the present application, the thickness of the second micro-prism structure layer 35 is less than the thickness of the first micro-prism structure layer 34. First, the first micro-prism structure layer 34 needs to be higher than the top of the pixel definition layer 32, not only to realize the fine adjustment of the light emitted by the light-emitting function layer 33, but also to make the top flat, so the first micro-prism structure layer 34 itself has a certain thickness requirement. Second, the distance between the pixel definition layer 32 and the top of the first micro-prism structure layer 34 is not too large, so that part of the light is reflected to the pixel definition layer 32 from the bottom of the condenser lens 37, causing a loss of light quantity. Third, the thickness of the second micro-prism structure layer 35 is greater than the thickness of the condenser lens 37, and the combination of the second micro-prism structure layer 35 and the condenser lens 37 can make most of the light reach the pixel area, so the second micro-prism structure layer 35 does not need to have a large thickness to meet the condensation requirement, thereby increasing the front light brightness of the display panel 30.

[0050] It should be noted that the thicknesses of the first micro-prism structure layer 34 and the second micro-prism structure layer 35 are not uniform, so the thicknesses herein refer to the maximum thicknesses of the first micro-prism structure layer 34 and the second micro-prism structure layer 35.

[0051] In some embodiments, as shown in FIG. 3, the display panel 30 further includes a third micro-prism structure layer 36. Figure 4As shown, one side of the first micro-prism structure layer 34 facing the second micro-prism structure layer 35 is provided with a plurality of grooves 341, and one side of the second micro-prism structure layer 35 facing the first micro-prism structure layer 34 is provided with a plurality of protrusions 351, the material of the protrusions 351 is the same as that of the second micro-prism structure layer 35, that is, the protrusions 351 are part of the first micro-prism structure layer 34. The protrusions 351 and the grooves 341 correspond to each other and are attached to each other, and the contact surface between the first micro-prism structure layer 34 and the second micro-prism structure layer 35 is uneven.

[0052] The embodiment of the present application improves the contact surface between the first micro-prism structure layer 34 and the second micro-prism structure layer 35, so that the light emitted by the light-emitting functional layer 33 is deflected in more directions after being emitted from the uneven surface of the first micro-prism structure layer 34; at this time, the light in different directions is more uniformly mixed and emitted outward after entering the uneven surface of the second micro-prism structure layer 35, avoiding the deflection of the light refracted by the first micro-prism structure layer 34 and the second micro-prism structure layer 35 to the area where the pixel definition layer 32 is located, and making the light quantity more uniform. Moreover, the embodiment of the present application also combines the design of the condenser lens 37, and converges the light deflected to the area where the pixel definition layer 32 is located to the pixel area through the condenser lens 37, thereby further improving the brightness of the pixel area while ensuring the uniformity of the light quantity in the pixel area.

[0053] Moreover, in the embodiment of the present application, the first micro-prism structure layer 34 and the second micro-prism structure layer 35 are directly attached without gaps, avoiding the consumption of light quantity or the generation of reverse light deflection between the first micro-prism structure layer 34 and the second micro-prism structure layer 35.

[0054] Further, in the thickness direction of the display panel 30, the groove wall section of the groove 341 is arc-shaped, the outer wall section of the protrusion 351 is arc-shaped, and the groove 341 and the protrusion 351 are seamlessly attached; specifically, the groove wall section of the groove 341 and the outer wall section of the protrusion 351 are both circular arc-shaped. Through this setting, the groove 341 in the first micro-prism structure layer 34 also plays the role of a concave mirror, dispersing the light emitted by the light-emitting functional layer 33; and the protrusion 351 in the second micro-prism structure layer 35 plays the role of a convex mirror, and the second micro-prism structure layer 35 converges the incident light to the pixel area, making the brightness of the pixel area higher.

[0055] It should be noted that, in the embodiment of the present application, the height of the first micro-prism structure layer 34 is small, and the height of the pixel definition layer 32 is similar, so the recess 341 is not suitable to be arranged in the area of the pixel definition layer 32. In the scheme with the condenser lens 37, the first micro-prism structure layer 34 is not in direct contact with the second micro-prism structure layer 35 in the area of the pixel definition layer 32, so the recess 341 is not arranged in the area of the pixel definition layer 32. Therefore, the recess 341 and the protrusion 351 are only arranged directly above the light-emitting functional layer 33, that is, the recess 341 and the protrusion 351 are only arranged in the pixel area, and only converge light to the pixel area, so as not to converge light to the area where the pixel definition layer 32 is located, thereby ensuring the light-emitting brightness of the pixel area.

[0056] In some embodiments, as shown in Figure 5 and Figure 6 The display panel 30 includes a plurality of micro-triangular prisms 38, the plurality of micro-triangular prisms 38 are arranged on the surface of the condenser lens 37, and the top angles of the plurality of micro-triangular prisms 38 are all perpendicular to the inorganic packaging layer 36.

[0057] The embodiment of the present application adds a plurality of micro-triangular prisms 38 on the surface of the condenser lens 37, adjusts the light angle through the micro-triangular prisms 38 for the light entering the condenser lens 37 from different angles, further ensures that the light entering the condenser lens 37 has more opportunities to be totally reflected, realizes the total reflection of more angle light, and further improves the light-emitting brightness.

[0058] Among them, the plurality of micro-triangular prisms 38 are arranged on at least two sides of the condenser lens 37. As an implementation, the micro-triangular prisms 38 are arranged on only two sides of the condenser lens 37, so that the two sides of the condenser lens 37 form a height-graduated micro-triangular prism 38 array. As another implementation, the micro-triangular prisms 38 are arranged on both two sides of the condenser lens 37 and the side of the condenser lens 37 facing the second micro-prism structure layer 35, that is, the micro-triangular prisms 38 are arranged along the edge of the condenser lens 37. Regardless of which implementation, more light can be totally reflected.

[0059] Specifically, on the two sides of the condenser lens 37, the height of the plurality of micro-triangular prisms 38 gradually increases in the direction of the substrate 31 toward the inorganic packaging layer 36. By such arrangement, even if some angle light passes through the first micro-triangular prism 38 (the micro-triangular prism 38 with the lowest height), the total reflection does not occur because the angle is not enough, but after being modulated by subsequent micro-triangular prisms 38 with different heights, the total reflection condition can be finally reached.

[0060] As shown in Figure 7As shown, the embodiment of the present application further provides a display device, which comprises a driving circuit 20 and the display panel 30 as described above, the driving circuit 20 drives the display panel 30, and the display device 10 can reduce product power consumption and improve market competitiveness while ensuring display brightness.

[0061] The above is a further detailed description of the present application in combination with specific optional embodiments, and the specific implementation of the present application cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the present application belongs, some simple deductions or replacements can be made without departing from the concept of the present application, and all of them shall be regarded as falling within the protection scope of the present application.

Claims

1. A display panel, characterized in that, include: Substrate; A pixel definition layer is disposed on the substrate, the pixel definition layer is divided into multiple partitions, and the interior of each partition is hollowed out to form a pixel area; A light-emitting functional layer is disposed within the plurality of pixel regions; The first microprism structure layer is disposed on the light-emitting functional layer; The second microprism structure layer is disposed on the first microprism structure layer; An inorganic encapsulation layer is disposed on the second microprism structure layer; Both the first microprism structure layer and the second microprism structure layer are organic encapsulation structures, and the refractive index of the second microprism structure layer is greater than that of the first microprism structure layer.

2. The display panel as described in claim 1, characterized in that, The refractive index of the first microprism structure layer is between 1.4 and 1.6, and the refractive index of the second microprism structure layer is between 1.7 and 2.

0.

3. The display panel as described in claim 1, characterized in that, The first microprism structure layer has multiple grooves on the side facing the second microprism structure layer, and the second microprism structure layer has multiple protrusions on the side facing the first microprism structure layer. The material of the protrusions is the same as that of the second microprism structure layer, and the protrusions and grooves are in one-to-one correspondence and fit together.

4. The display panel as described in claim 3, characterized in that, In the thickness direction of the display panel, the groove wall cross-section is arc-shaped, the outer wall cross-section of the protrusion is arc-shaped, and the groove fits into the protrusion.

5. The display panel as described in claim 1, characterized in that, The display panel also includes multiple focusing lenses, which are arranged one-to-one on the partition and located between the first microprism structure layer and the second microprism structure layer.

6. The display panel as described in claim 5, characterized in that, The orthogonal projection of the condenser lens onto the substrate covers the orthogonal projection of the corresponding partition onto the substrate.

7. The display panel as described in claim 5, characterized in that, The display panel includes multiple micro prisms, which are disposed on the surface of the light-concentrating lens, and the apex corners of the multiple micro prisms are all perpendicularly facing the inorganic encapsulation layer.

8. The display panel as described in claim 7, characterized in that, Multiple miniature prisms are disposed on at least both sides of the condensing lens.

9. The display panel as described in claim 8, characterized in that, On both sides of the focusing lens, along the direction from the substrate toward the inorganic encapsulation layer, the elevation of the plurality of micro prisms gradually increases.

10. A display device, characterized in that, It includes a driving circuit and a display panel as described in any one of claims 1-9, wherein the driving circuit drives the display panel.

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