Quantum dot display panel and display device

Abstract

The application provides a quantum dot display panel and a display device. The quantum dot display panel comprises: a substrate substrate; a light-emitting chip arranged above the substrate substrate; a quantum dot unit arranged above the light-emitting chip; and a polaroid arranged around the light-emitting chip. The application changes the light path of the light emitted by the light-emitting chip by arranging the polaroid around the light-emitting chip, so that the originally diverging light is concentrated and emitted to the quantum dot unit along the vertical direction; the influence of other light-emitting chips around is reduced, and the crosstalk phenomenon is avoided.

Description

Technical Field

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

[0002] A light-emitting diode (LED) is a semiconductor electronic component that emits light. It is characterized by its small size, high brightness, and low power consumption, and is widely used in display fields such as displays, backlights, and lighting.

[0003] MIP (microLED in package) is a packaging technology that encapsulates RGB three-color MicroLED chips within a single package to achieve full-color light emission. This technology frees microLEDs from mass transfer processes, significantly reducing transfer costs. However, because LEDs often have a large beam angle, crosstalk is prone to occur. Summary of the Invention

[0004] This application aims to provide a quantum dot display panel and display device, which addresses the problem of crosstalk that easily occurs in existing quantum dot display panels.

[0005] On one hand, this application provides a quantum dot display panel and a display device, wherein the quantum dot display panel includes:

[0006] Substrate;

[0007] A light-emitting chip, wherein the light-emitting chip is disposed above the substrate;

[0008] A quantum dot unit, wherein the quantum dot unit is disposed above the light-emitting chip;

[0009] A polarizer is disposed around the light-emitting chip.

[0010] In some possible embodiments, the polarizer is disposed above at least one light-emitting chip, covering the light-emitting chip, and / or the polarizer is disposed parallel to the side of at least one light-emitting chip that is perpendicular to the substrate.

[0011] In some possible embodiments, when the polarizer is disposed above the at least one light-emitting chip, the orthogonal projection of the polarizer in the vertical direction is greater than the orthogonal projection of the at least one light-emitting chip in the vertical direction.

[0012] In some possible embodiments, when the polarizer is arranged parallel to the side of the at least one light-emitting chip that is perpendicular to the substrate, the polarizer is arranged parallel to all the side surfaces of the at least one light-emitting chip that are perpendicular to the substrate.

[0013] In some possible embodiments, the light-emitting chips are multiple light-emitting chips spaced apart, and the polarizer is disposed above each of the multiple light-emitting chips, and the polarizer covers the multiple light-emitting chips and the spaced areas between the multiple light-emitting chips.

[0014] In some possible embodiments, the quantum dot display panel further includes a fluorescent layer, which is disposed above the light-emitting chip at intervals with the quantum dot units.

[0015] In some possible embodiments, the fluorescent layer is a yellow fluorescent layer.

[0016] In some possible embodiments, the upper surface of the fluorescent layer and the upper surface of the quantum dot unit are at the same horizontal level.

[0017] In some possible embodiments, when the polarizer is disposed above the light-emitting chip, the polarizer has a thickness of 10 micrometers to 20 micrometers in the vertical direction.

[0018] On the other hand, embodiments of this application also provide a display device, the display device including a display panel as described in any of the preceding claims.

[0019] This application provides a quantum dot display panel and display device. The quantum dot display panel includes: a substrate; a light-emitting chip disposed above the substrate; a quantum dot unit disposed above the light-emitting chip; and a polarizer disposed around the light-emitting chip. This application, by distributing a polarizer around the light-emitting chip, alters the path of the light emitted by the chip, concentrating the light that would otherwise diffuse in all directions and directing it vertically to the quantum dot unit; reducing the influence of other surrounding light-emitting chips and avoiding crosstalk. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of an embodiment of the quantum dot display panel provided in this application;

[0022] Figure 2 This is a schematic diagram of another embodiment of the quantum dot display panel provided in this application.

[0023] Figure 3This is a schematic diagram of another embodiment of the quantum dot display panel provided in this application.

[0024] Figure 4 This is a schematic diagram of another embodiment of the quantum dot display panel provided in this application.

[0025] Figure 5 This is a schematic diagram of another embodiment of the quantum dot display panel provided in this application. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0029] This application provides a quantum dot display panel and a display device, which will be described in detail below.

[0030] like Figure 1 The diagram shown is a structural schematic of an embodiment of the quantum dot display panel provided in this application.

[0031] exist Figure 1 In the embodiments described above, the quantum dot display panel may include:

[0032] Substrate 10;

[0033] A light-emitting chip 20 disposed above the substrate 10;

[0034] Quantum dot unit 30 is disposed above light-emitting chip 20;

[0035] Polarizer 40 is arranged around light-emitting chip 20.

[0036] The quantum dot display panel provided in this application includes: a substrate; a light-emitting chip disposed above the substrate; a quantum dot unit disposed above the light-emitting chip; and a polarizer disposed around the light-emitting chip. This application, by distributing a polarizer around the light-emitting chip, alters the path of the light emitted by the chip, concentrating the light that would otherwise radiate outwards and directing it vertically to the quantum dot unit; reducing the influence of other surrounding light-emitting chips and avoiding crosstalk.

[0037] Please refer to Figure 1 ,exist Figure 1 In the illustrated embodiment, the polarizer 40 is disposed above and covers the light-emitting chip 20; and in Figure 1 In the described embodiment, a polarizer 40 is disposed above only one light-emitting chip 20. For Figure 1 In the illustrated embodiment, the light emitted by the light-emitting chip 20 should ideally reach the quantum dot unit 30 directly to excite the quantum dots. However, because a polarizer 40 is placed between the light-emitting chip 20 and the quantum dot unit 30, the light must first pass through the polarizer 40 before reaching the quantum dot unit 30. The polarization effect of the polarizer 40 ensures that only a portion of the originally divergent light in a certain direction can pass through the polarizer 40 and reach the quantum dot unit 30. This prevents light from certain directions from reaching other adjacent quantum dot units 30, thereby reducing the possibility of crosstalk.

[0038] for Figure 1In the illustrated embodiment, placing a polarizer 40 above a light-emitting chip 20 can reduce the possibility of crosstalk to some extent. However, to improve the effect of preventing crosstalk and ensure that crosstalk can be reduced in all areas of the entire display panel, when the quantum dot display panel includes multiple light-emitting chips 20, a polarizer 40 can be placed above all light-emitting chips 20. Figure 2 The diagram shown is a schematic representation of another embodiment of the quantum dot display panel provided in this application. Figure 2 In the quantum dot display panel, multiple light-emitting chips 20 are spaced apart, and each of the multiple light-emitting chips 20 is provided with a polarizer 40 above it.

[0039] for Figure 2 In the illustrated embodiment, since a polarizer 40 is disposed above each light-emitting chip 20, only a portion of the divergent light emitted by each light-emitting chip 20 reaches its corresponding quantum dot unit 30, while the remaining light does not reach other adjacent quantum dot units 30. For the entire quantum dot display panel, this effectively reduces the possibility of crosstalk and improves the display effect.

[0040] It should be noted that, for Figure 1 Figure 2 In the illustrated embodiment, the polarizer 40 is disposed between the light-emitting chip 20 and the quantum dot unit 30. For a single light-emitting chip 20 and the corresponding polarizer 40 disposed above it, the vertical projection area of ​​the polarizer 40 can be greater than or equal to the vertical projection area of ​​the light-emitting chip 20. That is, typically, the polarizer 40 needs to completely cover the light-emitting chip 20 located below it. This further ensures that the light emitted from the side of the light-emitting chip 20 is blocked by the polarizer and not transmitted to other surrounding quantum dot units.

[0041] like Figure 3 The diagram shown is a schematic representation of another embodiment of the quantum dot display panel provided in this application. Figure 3 In the quantum dot display panel, multiple light-emitting chips 20 are spaced apart. A polarizer 40 is positioned above each of the multiple light-emitting chips 20, covering both the individual chips and the spaces between them. Essentially, a complete polarizer covering all the light-emitting chips 20 is positioned above them. This polarizer arrangement prevents gaps between the polarizers of different chips 20, thus avoiding crosstalk caused by light emanating from these gaps into other quantum dot units 30. This polarizer arrangement is superior to traditional methods. Figure 1 and Figure 2The quantum dot display panel shown can further reduce the impact of crosstalk.

[0042] The above embodiments describe the case where the polarizer 40 is positioned above the light-emitting chip 20. However, in other embodiments, the polarizer 40 may also be positioned at other locations around the light-emitting chip. Specifically, for example... Figure 4 The image shown is a schematic diagram of an embodiment of a quantum dot display panel provided in this application. According to... Figures 1-4 It is understood that the light-emitting chip 20 is a film layer structure with a certain thickness disposed on the substrate 10. The light-emitting chip 20 may include six surfaces: top and bottom, left and right, and front and back. One of these surfaces is in contact with the substrate 10 to dispose the light-emitting chip 20 on the substrate 10. Therefore, the light-emitting chip 20 also has five surfaces that are not in direct contact with the substrate 10, and four of these surfaces are perpendicular to the substrate 10.

[0043] Figures 1-3 This is a cross-sectional view of a quantum dot display panel. Figure 4 This is a top view of the quantum dot display panel. The polarizer 40 needs to be positioned around the light-emitting chip 20; it can be positioned not only above the light-emitting chip 20, but also alongside a side plane of the light-emitting chip 20 perpendicular to the substrate. Please refer to... Figure 4 , Figure 4 The polarizer 40 is positioned around the light-emitting chip 20; and the vertical height of the polarizer can be the same as the height of the light-emitting chip 20. This polarizer 40 can block light rays emitted from the light-emitting chip 20 at certain angles, while allowing light rays at certain angles to pass through and exit into the corresponding quantum dot units.

[0044] for Figure 4 In the quantum dot display panel shown, the polarizer 40 can be arranged parallel to only one side of the light-emitting chip that is perpendicular to the substrate, or it can be arranged parallel to all the sides of the light-emitting chips that are perpendicular to the substrate. That is, the polarizer can be arranged around only one side of a light-emitting chip, or it can be arranged on all four sides of a light-emitting chip; alternatively, it can be arranged on all sides of all light-emitting chips. If the polarizer is arranged on all sides of all light-emitting chips, some light-emitting chips can share a single polarizer, reducing the manufacturing process.

[0045] In other embodiments, the polarizer can also be disposed above the light-emitting chip 20 and around the side of the light-emitting chip perpendicular to the substrate. That is, the polarizer 40 is disposed around the light-emitting chip to completely surround the light-emitting chip. This allows for complete control over the light emitted by the light-emitting chip 20, ensuring that only light at certain angles can enter the corresponding quantum dot unit 30 of each light-emitting chip, while preventing light from entering other quantum dot units and avoiding crosstalk.

[0046] It should be noted that, in the embodiments of this application, generally speaking, only light perpendicular to the quantum dot unit 30 (or perpendicular to the light-emitting chip 20) can be emitted after being controlled by the polarizer, so as to completely avoid crosstalk.

[0047] In the embodiments of this application, the light-emitting chip 20 may include multiple blue light-emitting chips arranged in an array at intervals; specifically, it may be a blue LED; while the quantum dot unit 30 may be prepared from different quantum dot materials. Different quantum dot materials can be excited by the blue light emitted by the blue LED to further generate light of different colors corresponding to the colors of the quantum dot materials, thereby obtaining light of multiple colors and realizing the color display of the quantum dot display panel.

[0048] Specifically, different quantum dot units can be prepared using red and green quantum dot materials respectively, to generate red and green light using blue light excitation. To achieve color display, blue light also needs to be incorporated, thus requiring the direct incorporation of blue light emitted by a blue LED. Therefore, for the quantum dot units in the quantum dot material, only a portion are prepared using red and green quantum dot materials; the remaining quantum dot units are actually transparent film structures that do not require quantum dot material preparation, only needing to be transparent enough to allow blue light emitted by the blue LED to pass through.

[0049] In this application, the quantum dot light-emitting unit includes not only quantum dot units but also transparent quantum dot units, which are spaced apart and positioned above different light-emitting chips 20. A polarizer can be placed between the transparent quantum dot units and the light-emitting chips, and similarly, a polarizer can be placed between the quantum dot units and the light-emitting chips. The polarizer 40 in this application only changes the direction of light, allowing only a portion of the light at a certain angle to pass through, without altering the color or other characteristics of the light.

[0050] like Figure 5 The above is a schematic diagram of another embodiment of the quantum dot display panel provided in this application. Figure 5 In the illustrated embodiment, the quantum dot display panel includes not only red quantum dot units, green quantum dot units, and transparent quantum dot units, but also a fluorescent layer 501. For Figure 4 In the illustrated embodiment, blue light emitted by a blue LED excites red quantum dot units to produce red light and excites green quantum dot units to produce green light; furthermore, blue light is directly emitted from transparent quantum dot units to produce blue light; thus, color display of the quantum dot display panel can be achieved using red, green, and blue (RGB) light. And for... Figure 5In the embodiment shown, the blue light emitted by the blue LED can also excite the phosphor layer to obtain white light. The four colors of red, green, blue and white (RGBW) light can usually be used to realize the color display of the quantum dot display panel.

[0051] When the quantum dot display panel also includes a fluorescent layer 501, the fluorescent layer 501 and the aforementioned quantum dot units and transparent quantum dot units are spaced apart above multiple light-emitting chips. A polarizer is also required between the fluorescent layer 501 and the light-emitting chips; the specific location and structure of the polarizer can be found in the preceding description and will not be repeated here.

[0052] In the embodiments of this application, the fluorescent layer 501 can be a light-colored fluorescent layer prepared with yellow phosphor. The upper surface of the fluorescent layer 501 needs to be at the same level as the upper surface of the quantum dot unit to ensure the flatness of the quantum dot display panel.

[0053] like Figures 1-3 If the polarizer 40 is positioned above the light-emitting chip 20, its thickness in the vertical direction can be 10-20 micrometers. When the polarizer 40 is positioned parallel to the side of the light-emitting chip, its thickness in the vertical direction is usually the same as the thickness of the light-emitting chip.

[0054] Please refer to Figures 1-5 The quantum dot display panel provided in this application also includes a transparent encapsulant 60, which fills the spacer areas between multiple light-emitting chips 20 and between multiple quantum dot units to isolate moisture and protect the quantum dot display panel. Meanwhile, the substrate 10 also includes solder pads 70, which can be used to connect the quantum dot display panel to other structures. The specific structure of the solder pads can be found in existing technology and is not limited here.

[0055] This application also provides a display device, the display device comprising a display panel as described in any of the preceding claims. Figure 1 The diagram shown is a structural schematic of an embodiment of the quantum dot display panel provided in this application.

[0056] exist Figure 1 In the embodiments described above, the quantum dot display panel may include:

[0057] Substrate 10;

[0058] A light-emitting chip 20 disposed above the substrate 10;

[0059] Quantum dot unit 30 is disposed above light-emitting chip 20;

[0060] Polarizer 40 is arranged around light-emitting chip 20.

[0061] The quantum dot display panel provided in this application includes: a substrate; a light-emitting chip disposed above the substrate; a quantum dot unit disposed above the light-emitting chip; and a polarizer disposed around the light-emitting chip. This application, by distributing a polarizer around the light-emitting chip, alters the path of the light emitted by the chip, concentrating the light that would otherwise radiate outwards and directing it vertically to the quantum dot unit; reducing the influence of other surrounding light-emitting chips and avoiding crosstalk.

[0062] Please refer to Figure 1 ,exist Figure 1 In the illustrated embodiment, the polarizer 40 is disposed above and covers the light-emitting chip 20; and in Figure 1 In the described embodiment, a polarizer 40 is disposed above only one light-emitting chip 20. For Figure 1 In the illustrated embodiment, the light emitted by the light-emitting chip 20 should ideally reach the quantum dot unit 30 directly to excite the quantum dots. However, because a polarizer 40 is placed between the light-emitting chip 20 and the quantum dot unit 30, the light must first pass through the polarizer 40 before reaching the quantum dot unit 30. The polarization effect of the polarizer 40 ensures that only a portion of the originally divergent light in a certain direction can pass through the polarizer 40 and reach the quantum dot unit 30. This prevents light from certain directions from reaching other adjacent quantum dot units 30, thereby reducing the possibility of crosstalk.

[0063] for Figure 1 In the illustrated embodiment, placing a polarizer 40 above a light-emitting chip 20 can reduce the possibility of crosstalk to some extent. However, to improve the effect of preventing crosstalk and ensure that crosstalk can be reduced in all areas of the entire display panel, when the quantum dot display panel includes multiple light-emitting chips 20, a polarizer 40 can be placed above all light-emitting chips 20. Figure 2 The diagram shown is a schematic representation of another embodiment of the quantum dot display panel provided in this application. Figure 2 In the quantum dot display panel, multiple light-emitting chips 20 are spaced apart, and each of the multiple light-emitting chips 20 is provided with a polarizer 40 above it.

[0064] for Figure 2 In the illustrated embodiment, since a polarizer 40 is disposed above each light-emitting chip 20, only a portion of the divergent light emitted by each light-emitting chip 20 reaches its corresponding quantum dot unit 30, while the remaining light does not reach other adjacent quantum dot units 30. For the entire quantum dot display panel, this effectively reduces the possibility of crosstalk and improves the display effect.

[0065] It should be noted that, for Figure 1 Figure 2 In the illustrated embodiment, the polarizer 40 is disposed between the light-emitting chip 20 and the quantum dot unit 30. For a single light-emitting chip 20 and the corresponding polarizer 40 disposed above it, the vertical projection area of ​​the polarizer 40 can be greater than or equal to the vertical projection area of ​​the light-emitting chip 20. That is, typically, the polarizer 40 needs to completely cover the light-emitting chip 20 located below it. This further ensures that the light emitted from the side of the light-emitting chip 20 is blocked by the polarizer and not transmitted to other surrounding quantum dot units.

[0066] like Figure 3 The diagram shown is a schematic representation of another embodiment of the quantum dot display panel provided in this application. Figure 3 In the quantum dot display panel, multiple light-emitting chips 20 are spaced apart. A polarizer 40 is positioned above each of the multiple light-emitting chips 20, covering both the individual chips and the spaces between them. Essentially, a complete polarizer covering all the light-emitting chips 20 is positioned above them. This polarizer arrangement prevents gaps between the polarizers of different chips 20, thus avoiding crosstalk caused by light emanating from these gaps into other quantum dot units 30. This polarizer arrangement is superior to traditional methods. Figure 1 and Figure 2 The quantum dot display panel shown can further reduce the impact of crosstalk.

[0067] The above embodiments describe the case where the polarizer 40 is positioned above the light-emitting chip 20. However, in other embodiments, the polarizer 40 may also be positioned at other locations around the light-emitting chip. Specifically, for example... Figure 4 The image shown is a schematic diagram of an embodiment of a quantum dot display panel provided in this application. According to... Figures 1-4 It is understood that the light-emitting chip 20 is a film layer structure with a certain thickness disposed on the substrate 10. The light-emitting chip 20 may include six surfaces: top and bottom, left and right, and front and back. One of these surfaces is in contact with the substrate 10 to dispose the light-emitting chip 20 on the substrate 10. Therefore, the light-emitting chip 20 also has five surfaces that are not in direct contact with the substrate 10, and four of these surfaces are perpendicular to the substrate 10.

[0068] Figures 1-3 This is a cross-sectional view of a quantum dot display panel. Figure 4This is a top view of the quantum dot display panel. The polarizer 40 needs to be positioned around the light-emitting chip 20; it can be positioned not only above the light-emitting chip 20, but also alongside a side plane of the light-emitting chip 20 perpendicular to the substrate. Please refer to... Figure 4 , Figure 4 The polarizer 40 is positioned around the light-emitting chip 20; and the vertical height of the polarizer can be the same as the height of the light-emitting chip 20. This polarizer 40 can block light rays emitted from the light-emitting chip 20 at certain angles, while allowing light rays at certain angles to pass through and exit into the corresponding quantum dot units.

[0069] for Figure 4 In the quantum dot display panel shown, the polarizer 40 can be arranged parallel to only one side of the light-emitting chip that is perpendicular to the substrate, or it can be arranged parallel to all the sides of the light-emitting chips that are perpendicular to the substrate. That is, the polarizer can be arranged around only one side of a light-emitting chip, or it can be arranged on all four sides of a light-emitting chip; alternatively, it can be arranged on all sides of all light-emitting chips. If the polarizer is arranged on all sides of all light-emitting chips, some light-emitting chips can share a single polarizer, reducing the manufacturing process.

[0070] In other embodiments, the polarizer can also be disposed above the light-emitting chip 20 and around the side of the light-emitting chip perpendicular to the substrate. That is, the polarizer 40 is disposed around the light-emitting chip to completely surround the light-emitting chip. This allows for complete control over the light emitted by the light-emitting chip 20, ensuring that only light at certain angles can enter the corresponding quantum dot unit 30 of each light-emitting chip, while preventing light from entering other quantum dot units and avoiding crosstalk.

[0071] It should be noted that, in the embodiments of this application, generally speaking, only light perpendicular to the quantum dot unit 30 (or perpendicular to the light-emitting chip 20) can be emitted after being controlled by the polarizer, so as to completely avoid crosstalk.

[0072] In the embodiments of this application, the light-emitting chip 20 may include multiple blue light-emitting chips arranged in an array at intervals; specifically, it may be a blue LED; while the quantum dot unit 30 may be prepared from different quantum dot materials. Different quantum dot materials can be excited by the blue light emitted by the blue LED to further generate light of different colors corresponding to the colors of the quantum dot materials, thereby obtaining light of multiple colors and realizing the color display of the quantum dot display panel.

[0073] Specifically, different quantum dot units can be prepared using red and green quantum dot materials respectively, to generate red and green light using blue light excitation. To achieve color display, blue light also needs to be incorporated, thus requiring the direct incorporation of blue light emitted by a blue LED. Therefore, for the quantum dot units in the quantum dot material, only a portion are prepared using red and green quantum dot materials; the remaining quantum dot units are actually transparent film structures that do not require quantum dot material preparation, only needing to be transparent enough to allow blue light emitted by the blue LED to pass through.

[0074] In this application, the quantum dot light-emitting unit includes not only quantum dot units but also transparent quantum dot units, which are spaced apart and positioned above different light-emitting chips 20. A polarizer can be placed between the transparent quantum dot units and the light-emitting chips, and similarly, a polarizer can be placed between the quantum dot units and the light-emitting chips. The polarizer 40 in this application only changes the direction of light, allowing only a portion of the light at a certain angle to pass through, without altering the color or other characteristics of the light.

[0075] like Figure 5 The above is a schematic diagram of another embodiment of the quantum dot display panel provided in this application. Figure 5 In the illustrated embodiment, the quantum dot display panel includes not only red quantum dot units, green quantum dot units, and transparent quantum dot units, but also a fluorescent layer 501. For Figure 4 In the illustrated embodiment, blue light emitted by a blue LED excites red quantum dot units to produce red light and excites green quantum dot units to produce green light; furthermore, blue light is directly emitted from transparent quantum dot units to produce blue light; thus, color display of the quantum dot display panel can be achieved using red, green, and blue (RGB) light. And for... Figure 5 In the embodiment shown, the blue light emitted by the blue LED can also excite the phosphor layer to obtain white light. The four colors of red, green, blue and white (RGBW) light can usually be used to realize the color display of the quantum dot display panel.

[0076] When the quantum dot display panel also includes a fluorescent layer 501, the fluorescent layer 501 and the aforementioned quantum dot units and transparent quantum dot units are spaced apart above multiple light-emitting chips. A polarizer is also required between the fluorescent layer 501 and the light-emitting chips; the specific location and structure of the polarizer can be found in the preceding description and will not be repeated here.

[0077] In the embodiments of this application, the fluorescent layer 501 can be a light-colored fluorescent layer prepared with yellow phosphor. The upper surface of the fluorescent layer 501 needs to be at the same level as the upper surface of the quantum dot unit to ensure the flatness of the quantum dot display panel.

[0078] like Figures 1-3 If the polarizer 40 is positioned above the light-emitting chip 20, its thickness in the vertical direction can be 10-20 micrometers. When the polarizer 40 is positioned parallel to the side of the light-emitting chip, its thickness in the vertical direction is usually the same as the thickness of the light-emitting chip.

[0079] Please refer to Figures 1-5 The quantum dot display panel provided in this application also includes a transparent encapsulant 60, which fills the spacer areas between multiple light-emitting chips 20 and between multiple quantum dot units to isolate moisture and protect the quantum dot display panel. Meanwhile, the substrate 10 also includes solder pads 70, which can be used to connect the quantum dot display panel to other structures. The specific structure of the solder pads can be found in existing technology and is not limited here.

[0080] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the detailed descriptions of other embodiments above, which will not be repeated here.

[0081] In practice, each of the above units or structures can be implemented as an independent entity or can be arbitrarily combined to be implemented as the same or several entities. For the specific implementation of each of the above units or structures, please refer to the previous method embodiments, which will not be repeated here.

[0082] For details on the implementation of each of the above operations, please refer to the previous examples, which will not be repeated here.

[0083] The present application provides a detailed description of a quantum dot display panel and display device. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, those skilled in the art will recognize that there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A quantum dot display panel, characterized in that, The quantum dot display panel includes: Substrate; Multiple light-emitting chips are spaced apart and disposed above the substrate. Multiple quantum dot units, each of which is disposed above a corresponding light-emitting chip; A polarizer is disposed around the light-emitting chip, and is also disposed above the light-emitting chip and around the side of the light-emitting chip perpendicular to the substrate, so as to provide a polarizer that completely surrounds the light-emitting chip. The polarizer is configured to change the path of the light emitted by the light-emitting chip, so that the light that was originally scattered in all directions is concentrated and emitted vertically to the corresponding quantum dot unit.

2. The quantum dot display panel according to claim 1, characterized in that, The polarizer is arranged parallel to all the sides of the plurality of light-emitting chips that are perpendicular to the substrate.

3. The quantum dot display panel according to claim 2, characterized in that, When the polarizer is positioned above the light-emitting chip, the orthographic projection of the polarizer in the vertical direction is greater than the orthographic projection of the light-emitting chip in the vertical direction.

4. The quantum dot display panel according to claim 1, characterized in that, The quantum dot display panel also includes a fluorescent layer, which is disposed above the light-emitting chip at intervals with the quantum dot units.

5. The quantum dot display panel according to claim 4, characterized in that, The fluorescent layer is a yellow fluorescent layer.

6. The quantum dot display panel according to claim 4, characterized in that, The upper surface of the fluorescent layer and the upper surface of the quantum dot unit are at the same horizontal level.

7. The quantum dot display panel according to claim 1, characterized in that, When the polarizer is positioned above the light-emitting chip, the thickness of the polarizer in the vertical direction is 10 micrometers to 20 micrometers.

8. A display device, characterized in that, The display device includes a quantum dot display panel as described in any one of claims 1-7.

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