CN116111032A - Quantum dot display panel and display device - Google Patents

Abstract

The present application provides a quantum dot display panel and a display device. The quantum dot display panel includes: a base substrate; a light-emitting chip, the light-emitting chip is arranged above the base substrate; a quantum dot unit, the quantum dot unit is arranged on Above the light-emitting chip; a polarizer, the polarizer is arranged around the light-emitting chip. In this application, polarizers are arranged around the light-emitting chip to change the line of the light emitted by the light-emitting chip, so that the light that originally diverges to the surroundings is concentrated and emitted to the quantum dot unit along the vertical direction; the influence of other light-emitting chips around is reduced, and crosstalk is avoided Phenomenon.

Description

Quantum dot display panel and display device

technical field

The present application relates to the field of display technology, in particular to a quantum dot display panel and a display device.

Background technique

Light Emitting Diode (LED) is a semiconductor electronic component that can emit light. It has the characteristics of small size, high brightness and low energy consumption. It is widely used in display screens, backlights, lighting and other display fields.

MIP (microLED in package) is a packaging technology that encapsulates RGB three-color MicroLED chips in the same package to achieve full-color light emission. It makes microLED get rid of the massive transfer process, and its transfer cost is greatly reduced. However, due to the large light emitting angle of LEDs, crosstalk is prone to occur.

Contents of the invention

The present application aims to provide a quantum dot display panel and a display device, aiming to solve the problem that the quantum dot display panel is prone to crosstalk in the prior art.

On the one hand, the application provides a quantum dot display panel and a display device, and the quantum dot display panel includes:

Substrate substrate;

A light-emitting chip, the light-emitting chip is arranged above the base substrate;

a quantum dot unit, the quantum dot unit is arranged above the light-emitting chip;

A polarizer, the polarizer is arranged around the light-emitting chip.

In some possible embodiments, the polarizer is arranged above at least one light-emitting chip to cover the light-emitting chip, and/or the polarizer is arranged parallel to a side of at least one light-emitting chip perpendicular to the base substrate.

In some possible embodiments, when the polarizer is arranged above the at least one light-emitting chip, the orthographic projection of the polarizer in the vertical direction is larger than the orthographic projection of the at least one light-emitting chip in the vertical direction.

In some possible embodiments, when the polarizer is arranged parallel to the side of the base substrate in at least one light-emitting chip, the polarizer and all sides of the at least one light-emitting chip that are perpendicular to the base substrate The sides are arranged parallel.

In some possible embodiments, the light-emitting chip is a plurality of light-emitting chips arranged at intervals, the polarizer is arranged above the plurality of light-emitting chips, and the polarizer covers the plurality of light-emitting chips and the The interval area between multiple light-emitting chips.

In some possible embodiments, the quantum dot display panel further includes a fluorescent layer, and the fluorescent layer and the quantum dot unit are spaced above the light emitting chip.

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

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

In some possible embodiments, when the polarizer is arranged above the light-emitting chip, the thickness of the polarizer in the vertical direction is 10 microns-20 microns.

On the other hand, an embodiment of the present application further provides a display device, the display device comprising the display panel described in any one of the above items.

The present application provides a quantum dot display panel and a display device. The quantum dot display panel includes: a base substrate; a light-emitting chip, the light-emitting chip is arranged above the base substrate; a quantum dot unit, the quantum dot unit is arranged on Above the light-emitting chip; a polarizer, the polarizer is arranged around the light-emitting chip. In this application, polarizers are arranged around the light-emitting chip to change the line of the light emitted by the light-emitting chip, so that the light that originally diverges to the surroundings is concentrated and emitted to the quantum dot unit along the vertical direction; the influence of other light-emitting chips around is reduced, and crosstalk is avoided Phenomenon.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of an embodiment of a quantum dot display panel provided in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of another embodiment of a quantum dot display panel provided in the embodiment of the present application;

FIG. 3 is a schematic structural diagram of another embodiment of a quantum dot display panel provided in the embodiment of the present application;

FIG. 4 is a schematic structural diagram of another embodiment of a quantum dot display panel provided in the embodiment of the present application;

FIG. 5 is a schematic structural diagram of another embodiment of a quantum dot display panel provided in the embodiment of the present application;

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation shown in the drawings Or positional relationship is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "plurality" means two or more, unless otherwise specifically defined.

In this application, the word "exemplary" is used to mean "serving as an example, illustration or illustration". Any embodiment described in this application as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is given to enable any person skilled in the art to make and use the application. In the following description, details are set forth for purposes of explanation. It should be understood that one of ordinary skill in the art would recognize that the present application may be practiced without these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of the present application with unnecessary detail. Thus, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed in this application.

Embodiments of the present application provide a quantum dot display panel and a display device, which will be described in detail below.

FIG. 1 is a schematic structural diagram of an embodiment of a quantum dot display panel provided in an embodiment of the present application.

In the embodiment described in FIG. 1, the quantum dot display panel may include:

base substrate 10;

A light-emitting chip 20 disposed above the base substrate 10;

Quantum dot unit 30, the quantum dot unit 30 is arranged above the light-emitting chip 20;

The polarizer 40 is arranged around the light-emitting chip 20 .

The quantum dot display panel provided in the embodiment of the present application includes: a base substrate; a light emitting chip, the light emitting chip is arranged above the base substrate; a quantum dot unit, the quantum dot unit is arranged above the light emitting chip; a polarizer sheet, the polarizer is arranged around the light-emitting chip. In this application, polarizers are arranged around the light-emitting chip to change the line of the light emitted by the light-emitting chip, so that the light that originally diverges to the surroundings is concentrated and emitted to the quantum dot unit along the vertical direction; the influence of other light-emitting chips around is reduced, and crosstalk is avoided Phenomenon.

Please refer to FIG. 1 , in the embodiment shown in FIG. 1 , the polarizer 40 is arranged above the light-emitting chip 20 and covers the light-emitting chip 20; There are polarizers 40 . For the embodiment shown in Figure 1, the light emitted by the light-emitting chip 20 should originally directly reach the quantum dot unit 30 to excite the quantum dots; The light needs to pass through the polarizer 40 first and then reach the quantum dot unit 30 . However, due to the polarizing effect of the polarizer 40 , only part of the originally divergent light in a certain direction can pass through the polarizer 40 and reach the quantum dot unit 30 . In this way, light in certain directions will not be sent to other adjacent quantum dot units 30 , thereby reducing the possibility of crosstalk.

For the embodiment shown in FIG. 1, setting a polarizer 40 above a light-emitting chip 20 can reduce the possibility of crosstalk to a certain extent, but in order to improve the effect of preventing crosstalk and ensure that all areas of the entire display panel can be reduced Crosstalk; when the quantum dot display panel includes multiple light-emitting chips 20 , polarizers 40 can be arranged above all the light-emitting chips 20 . As shown in FIG. 2 , it is a schematic structural diagram of another embodiment of the quantum dot display panel provided by the embodiment of the present application. In FIG. 2 , a plurality of light-emitting chips 20 in the quantum dot display panel are arranged at intervals, and a polarizer 40 is arranged above the plurality of light-emitting chips 20 .

For the embodiment shown in FIG. 2 , since each light-emitting chip 20 is provided with a polarizer 40 above, only part of the divergent light emitted by each light-emitting chip 20 will reach the corresponding quantum light of each light-emitting chip. Dot unit 30 , the remaining light will not reach other surrounding quantum dot units 30 . For the entire quantum dot display panel, the possibility of crosstalk in the quantum dot display panel can be effectively reduced, and the display effect of the quantum dot display panel can be improved.

It should be noted that, for the embodiment shown in FIG. 1 and FIG. 2, the polarizer 40 is arranged between the light-emitting chip 20 and the quantum dot unit 30; for a single light-emitting chip 20 and the corresponding polarizer 40 arranged above The orthographic area of the polarizer 40 in the vertical direction may be greater than or equal to the orthographic area of the light emitting chip 20 in the vertical direction. That is, generally speaking, the polarizer 40 needs to completely cover the light-emitting chip 20 below, which can further ensure that the light emitted from the side of the light-emitting chip 20 is blocked by the polarizer and will not be sent to other surrounding quantum dot units.

As shown in FIG. 3 , it is a schematic structural diagram of another embodiment of the quantum dot display panel provided by the embodiment of the present application. In Fig. 3, a plurality of light-emitting chips 20 in the quantum dot display panel are arranged at intervals; a plurality of light-emitting chips 20 are provided with polarizers 40, and a plurality of polarizers 40 cover a plurality of light-emitting chips 20 and also cover a plurality of The interval area between the light emitting chips 20 . That is, it can be understood that a complete polarizer that can cover the plurality of light-emitting chips 20 is disposed above the plurality of light-emitting chips 20 . The polarizers arranged in this way can cover the interval area between a plurality of light-emitting chips 20, avoiding gaps between the respective polarizers corresponding to different light-emitting chips 20, and the light is emitted from the gaps between the respective polarizers corresponding to different light-emitting chips to Other quantum dot units 30, causing crosstalk. Compared with the quantum dot display panel shown in FIG. 1 and FIG. 2 , the polarizer set in this way can further reduce the influence of crosstalk.

The above embodiments describe the situation that the polarizer 40 is disposed above the light emitting chip 20 , but in other embodiments, the polarizer 40 may also be disposed at other positions around the light emitting chip. Specifically, as shown in FIG. 4 , it is a schematic structural diagram of an embodiment of the quantum dot display panel provided by the embodiment of the present application. According to Figures 1 to 4, it can be known that the light-emitting chip 20 is a film layer structure with a certain thickness arranged on the base substrate 10, and the light-emitting chip 20 may include six surfaces, up and down, left and right, and front and rear, and one of the surfaces is in contact with the substrate. The substrate 10 is contacted to dispose the light emitting chip 20 on the base substrate 10 . Therefore, the light-emitting chip 20 also has five surfaces that are not in direct contact with the base substrate 10 , and four of the surfaces are perpendicular to the base substrate 10 .

1-3 are cross-sectional views of the quantum dot display panel, and FIG. 4 is a top view of the quantum dot display panel. The polarizer 40 needs to be arranged around the light-emitting chip 20 , not only can be arranged above the light-emitting chip 20 , but can also be arranged on a side plane of the light-emitting chip 20 perpendicular to the base substrate. Please refer to FIG. 4 , the polarizer in FIG. 4 is disposed on the periphery of the light-emitting chip 20 ; and the height of the polarizer in the vertical direction may be the same as that of the light-emitting chip 20 . The polarizer 40 arranged in this way can also block part of the light emitted by the light-emitting chip 20, and only allow the part of the light to pass through and emit into the corresponding quantum dot unit.

For the quantum dot display panel shown in FIG. 4 , the polarizer 40 can only be arranged parallel to the side perpendicular to the base substrate in one light-emitting chip, or can be parallel to all the sides perpendicular to the base substrate in all light-emitting chips. set up. That is, polarizers can be arranged only around one side of one light-emitting chip, or all four sides of one light-emitting chip can be arranged; at the same time, polarizers can also be arranged on all sides of all light-emitting chips. If polarizers are provided on all sides of all light-emitting chips, then some light-emitting chips can also share a polarizer to reduce the manufacturing process.

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 base substrate. That is, a polarizer 40 that completely surrounds the light-emitting chip is arranged around the light-emitting chip, so that the light emitted by the light-emitting chip 20 can be completely controlled, so that only light at a partial angle can enter the corresponding quantum dot unit 30 of each light-emitting chip, while It will not be injected into other quantum dot units to avoid crosstalk.

It should be noted that, in the embodiment of the present application, generally speaking, only the light perpendicular to the quantum dot unit 30 (or perpendicular to the light-emitting chip 20) can be emitted out of the light controlled by the polarizer, so that crosstalk can be completely avoided Phenomenon.

In the embodiment of the present application, the light-emitting chip 20 may include a plurality of blue light-emitting chips arranged at intervals in an array; specifically, it may be a blue LED; and the quantum dot unit 30 may be prepared from different quantum dot materials. Different quantum dot materials can further generate light of different colors corresponding to the color of the quantum dot material under the excitation of the blue light emitted by the blue light LED, so as to obtain light of various colors and realize the color display of the quantum dot display panel.

Specifically, different quantum dot units can be prepared for the red quantum dot material and the green quantum dot material, so that red light and green light can be obtained by excitation with blue light. In order to realize color display, it is also necessary to fuse blue light, so it is also necessary to directly fuse blue light emitted by blue LEDs. Therefore, for quantum dot units in quantum dot materials, only some quantum dot units are prepared by using red quantum dot materials and green quantum dot materials; It needs to be prepared with quantum dot materials, and it only needs to ensure that the structure is transparent so that the blue light emitted by the blue LED can pass through.

That is, the quantum dot light-emitting unit in this application includes not only quantum dot units, but also transparent quantum dot units, and the quantum dot units and the transparent quantum dot units are arranged above different light-emitting chips 20 at intervals. And a polarizer can be arranged between the transparent quantum dot unit and the light-emitting chip, and a polarizer can also be arranged between the quantum dot unit and the light-emitting chip. The polarizer 40 provided in this application only changes the direction of the light, only allows the light at a partial angle to pass through, and does not change the color of the light or other characteristics.

As shown in FIG. 5 , it is a schematic structural diagram of another embodiment of the quantum dot display panel provided by the embodiment of the present application. In the embodiment shown in FIG. 5 , the quantum dot display panel not only includes red quantum dot units, green quantum dot units and transparent quantum dot units, but also includes a fluorescent layer 501 . For the embodiment shown in Figure 4, the blue light emitted by the blue LED excites the red quantum dot unit to obtain red light, and excites the green quantum dot unit to obtain green light; and the blue light directly exits the transparent quantum dot unit to obtain blue light; Blue (RGB) three-color light can realize the color display of the quantum dot display panel. For the embodiment shown in FIG. 5 , the blue light emitted by the blue LED can also excite the fluorescent layer to obtain white light, and the use of red, green, blue and white (RGBW) four-color light can usually realize the color display of the quantum dot display panel.

When the quantum dot display panel further includes a fluorescent layer 501, the fluorescent layer 501 and the aforementioned quantum dot units and transparent quantum dot units are spaced above the plurality of light-emitting chips. In addition, a polarizer needs to be installed between the fluorescent layer 501 and the light-emitting chip; the specific position and structure of the polarizer can refer to the foregoing content, and will not be repeated here.

In the embodiment of the present application, the fluorescent layer 501 may be a photochromatic fluorescent layer prepared from yellow phosphor powder. The upper surface of the fluorescent layer 501 needs to be at the same level as the upper surface of the quantum dot unit, so as to ensure the flatness of the quantum dot display panel.

As shown in FIGS. 1-3 , if the polarizer 40 is arranged above the light-emitting chip 20 , the thickness of the polarizer 40 in the vertical direction may be 10-20 microns. When the polarizer 40 is arranged parallel to the side of the light-emitting chip, the thickness of the polarizer in the vertical direction is generally the same as that of the light-emitting chip.

Please refer to FIG. 1-FIG. 5, the quantum dot display panel provided by the present application also includes a transparent encapsulant 60, and the transparent encapsulant fills the space between multiple light-emitting chips 20; and the space between multiple quantum dot units , to isolate water vapor and protect the quantum dot display panel. At the same time, the base substrate 10 also includes welding feet 70 , and the quantum dot display panel can be connected with other structures by using the welding feet 70 . For the specific structure of the solder leg, reference may be made to the prior art, which is not limited here.

The present application also provides a display device, which includes the display panel described in any one of the above items. FIG. 1 is a schematic structural diagram of an embodiment of a quantum dot display panel provided in an embodiment of the present application.

In the embodiment described in FIG. 1, the quantum dot display panel may include:

base substrate 10;

A light-emitting chip 20 disposed above the base substrate 10;

Quantum dot unit 30, the quantum dot unit 30 is arranged above the light-emitting chip 20;

The polarizer 40 is arranged around the light-emitting chip 20 .

The quantum dot display panel provided in the embodiment of the present application includes: a base substrate; a light emitting chip, the light emitting chip is arranged above the base substrate; a quantum dot unit, the quantum dot unit is arranged above the light emitting chip; a polarizer sheet, the polarizer is arranged around the light-emitting chip. In this application, polarizers are arranged around the light-emitting chip to change the line of the light emitted by the light-emitting chip, so that the light that originally diverges to the surroundings is concentrated and emitted to the quantum dot unit along the vertical direction; the influence of other light-emitting chips around is reduced, and crosstalk is avoided Phenomenon.

Please refer to FIG. 1 , in the embodiment shown in FIG. 1 , the polarizer 40 is arranged above the light-emitting chip 20 and covers the light-emitting chip 20; There are polarizers 40 . For the embodiment shown in Figure 1, the light emitted by the light-emitting chip 20 should originally directly reach the quantum dot unit 30 to excite the quantum dots; The light needs to pass through the polarizer 40 first and then reach the quantum dot unit 30 . However, due to the polarizing effect of the polarizer 40 , only part of the originally divergent light in a certain direction can pass through the polarizer 40 and reach the quantum dot unit 30 . In this way, light in certain directions will not be sent to other adjacent quantum dot units 30 , thereby reducing the possibility of crosstalk.

For the embodiment shown in FIG. 1, setting a polarizer 40 above a light-emitting chip 20 can reduce the possibility of crosstalk to a certain extent, but in order to improve the effect of preventing crosstalk and ensure that all areas of the entire display panel can be reduced Crosstalk; when the quantum dot display panel includes multiple light-emitting chips 20 , polarizers 40 can be arranged above all the light-emitting chips 20 . As shown in FIG. 2 , it is a schematic structural diagram of another embodiment of the quantum dot display panel provided by the embodiment of the present application. In FIG. 2 , a plurality of light-emitting chips 20 in the quantum dot display panel are arranged at intervals, and a polarizer 40 is arranged above the plurality of light-emitting chips 20 .

For the embodiment shown in FIG. 2 , since each light-emitting chip 20 is provided with a polarizer 40 above, only part of the divergent light emitted by each light-emitting chip 20 will reach the corresponding quantum light of each light-emitting chip. Dot unit 30 , the remaining light will not reach other surrounding quantum dot units 30 . For the entire quantum dot display panel, the possibility of crosstalk in the quantum dot display panel can be effectively reduced, and the display effect of the quantum dot display panel can be improved.

It should be noted that, for the embodiment shown in FIG. 1 and FIG. 2, the polarizer 40 is arranged between the light-emitting chip 20 and the quantum dot unit 30; for a single light-emitting chip 20 and the corresponding polarizer 40 arranged above The orthographic area of the polarizer 40 in the vertical direction may be greater than or equal to the orthographic area of the light emitting chip 20 in the vertical direction. That is, generally speaking, the polarizer 40 needs to completely cover the light-emitting chip 20 below, which can further ensure that the light emitted from the side of the light-emitting chip 20 is blocked by the polarizer and will not be sent to other surrounding quantum dot units.

As shown in FIG. 3 , it is a schematic structural diagram of another embodiment of the quantum dot display panel provided by the embodiment of the present application. In Fig. 3, a plurality of light-emitting chips 20 in the quantum dot display panel are arranged at intervals; a plurality of light-emitting chips 20 are provided with polarizers 40, and a plurality of polarizers 40 cover a plurality of light-emitting chips 20 and also cover a plurality of The interval area between the light emitting chips 20 . That is, it can be understood that a complete polarizer that can cover the plurality of light-emitting chips 20 is disposed above the plurality of light-emitting chips 20 . The polarizers arranged in this way can cover the interval area between a plurality of light-emitting chips 20, avoiding gaps between the respective polarizers corresponding to different light-emitting chips 20, and the light is emitted from the gaps between the respective polarizers corresponding to different light-emitting chips to Other quantum dot units 30, causing crosstalk. Compared with the quantum dot display panel shown in FIG. 1 and FIG. 2 , the polarizer set in this way can further reduce the influence of crosstalk.

The above embodiments describe the situation that the polarizer 40 is disposed above the light emitting chip 20 , but in other embodiments, the polarizer 40 may also be disposed at other positions around the light emitting chip. Specifically, as shown in FIG. 4 , it is a schematic structural diagram of an embodiment of the quantum dot display panel provided by the embodiment of the present application. According to Figures 1 to 4, it can be known that the light-emitting chip 20 is a film layer structure with a certain thickness arranged on the base substrate 10, and the light-emitting chip 20 may include six surfaces, up and down, left and right, and front and rear, and one of the surfaces is in contact with the substrate. The substrate 10 is contacted to dispose the light emitting chip 20 on the base substrate 10 . Therefore, the light-emitting chip 20 also has five surfaces that are not in direct contact with the base substrate 10 , and four of the surfaces are perpendicular to the base substrate 10 .

1-3 are cross-sectional views of the quantum dot display panel, and FIG. 4 is a top view of the quantum dot display panel. The polarizer 40 needs to be arranged around the light-emitting chip 20 , not only can be arranged above the light-emitting chip 20 , but can also be arranged on a side plane of the light-emitting chip 20 perpendicular to the base substrate. Please refer to FIG. 4 , the polarizer in FIG. 4 is disposed on the periphery of the light-emitting chip 20 ; and the height of the polarizer in the vertical direction may be the same as that of the light-emitting chip 20 . The polarizer 40 arranged in this way can also block part of the light emitted by the light-emitting chip 20, and only allow the part of the light to pass through and emit into the corresponding quantum dot unit.

For the quantum dot display panel shown in FIG. 4 , the polarizer 40 can only be arranged parallel to the side perpendicular to the base substrate in one light-emitting chip, or can be parallel to all the sides perpendicular to the base substrate in all light-emitting chips. set up. That is, polarizers can be arranged only around one side of one light-emitting chip, or all four sides of one light-emitting chip can be arranged; at the same time, polarizers can also be arranged on all sides of all light-emitting chips. If polarizers are provided on all sides of all light-emitting chips, then some light-emitting chips can also share a polarizer to reduce the manufacturing process.

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 base substrate. That is, a polarizer 40 that completely surrounds the light-emitting chip is arranged around the light-emitting chip, so that the light emitted by the light-emitting chip 20 can be completely controlled, so that only light at a partial angle can enter the corresponding quantum dot unit 30 of each light-emitting chip, while It will not be injected into other quantum dot units to avoid crosstalk.

It should be noted that, in the embodiment of the present application, generally speaking, only the light perpendicular to the quantum dot unit 30 (or perpendicular to the light-emitting chip 20) can be emitted out of the light controlled by the polarizer, so that crosstalk can be completely avoided Phenomenon.

In the embodiment of the present application, the light-emitting chip 20 may include a plurality of blue light-emitting chips arranged at intervals in an array; specifically, it may be a blue LED; and the quantum dot unit 30 may be prepared from different quantum dot materials. Different quantum dot materials can further generate light of different colors corresponding to the color of the quantum dot material under the excitation of the blue light emitted by the blue light LED, so as to obtain light of various colors and realize the color display of the quantum dot display panel.

Specifically, different quantum dot units can be prepared for the red quantum dot material and the green quantum dot material, so that red light and green light can be obtained by excitation with blue light. In order to realize color display, it is also necessary to fuse blue light, so it is also necessary to directly fuse blue light emitted by blue LEDs. Therefore, for quantum dot units in quantum dot materials, only some quantum dot units are prepared by using red quantum dot materials and green quantum dot materials; It needs to be prepared with quantum dot materials, and it only needs to ensure that the structure is transparent so that the blue light emitted by the blue LED can pass through.

That is, the quantum dot light-emitting unit in this application includes not only quantum dot units, but also transparent quantum dot units, and the quantum dot units and the transparent quantum dot units are arranged above different light-emitting chips 20 at intervals. And a polarizer can be arranged between the transparent quantum dot unit and the light-emitting chip, and a polarizer can also be arranged between the quantum dot unit and the light-emitting chip. The polarizer 40 provided in this application only changes the direction of the light, only allows the light at a partial angle to pass through, and does not change the color of the light or other characteristics.

As shown in FIG. 5 , it is a schematic structural diagram of another embodiment of the quantum dot display panel provided by the embodiment of the present application. In the embodiment shown in FIG. 5 , the quantum dot display panel not only includes red quantum dot units, green quantum dot units and transparent quantum dot units, but also includes a fluorescent layer 501 . For the embodiment shown in Figure 4, the blue light emitted by the blue LED excites the red quantum dot unit to obtain red light, and excites the green quantum dot unit to obtain green light; and the blue light directly exits the transparent quantum dot unit to obtain blue light; Blue (RGB) three-color light can realize the color display of the quantum dot display panel. For the embodiment shown in FIG. 5 , the blue light emitted by the blue LED can also excite the fluorescent layer to obtain white light, and the use of red, green, blue and white (RGBW) four-color light can usually realize the color display of the quantum dot display panel.

When the quantum dot display panel further includes a fluorescent layer 501, the fluorescent layer 501 and the aforementioned quantum dot units and transparent quantum dot units are spaced above the plurality of light-emitting chips. In addition, a polarizer needs to be installed between the fluorescent layer 501 and the light-emitting chip; the specific position and structure of the polarizer can refer to the foregoing content, and will not be repeated here.

In the embodiment of the present application, the fluorescent layer 501 may be a photochromatic fluorescent layer prepared from yellow phosphor powder. The upper surface of the fluorescent layer 501 needs to be at the same level as the upper surface of the quantum dot unit, so as to ensure the flatness of the quantum dot display panel.

As shown in FIGS. 1-3 , if the polarizer 40 is arranged above the light-emitting chip 20 , the thickness of the polarizer 40 in the vertical direction may be 10-20 microns. When the polarizer 40 is arranged parallel to the side of the light-emitting chip, the thickness of the polarizer in the vertical direction is generally the same as that of the light-emitting chip.

Please refer to FIG. 1-FIG. 5, the quantum dot display panel provided by the present application also includes a transparent encapsulant 60, and the transparent encapsulant fills the space between multiple light-emitting chips 20; and the space between multiple quantum dot units , to isolate water vapor and protect the quantum dot display panel. At the same time, the base substrate 10 also includes welding feet 70 , and the quantum dot display panel can be connected with other structures by using the welding feet 70 . For the specific structure of the solder leg, reference may be made to the prior art, which is not limited here.

In the above-mentioned embodiments, the descriptions of each embodiment have their own emphases. For the part that is not described in detail in a certain embodiment, refer to the detailed description of other embodiments above, and will not be repeated here.

During specific implementation, each of the above units or structures can be implemented as an independent entity, or can be combined arbitrarily 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, here No longer.

For the specific implementation of the above operations, reference may be made to the foregoing embodiments, and details are not repeated here.

A quantum dot display panel and a display device provided by the embodiments of the present application have been introduced in detail above. In this paper, specific examples are used to illustrate the principles and implementation methods of the present application. The descriptions of the above embodiments are only used to help understanding The method of the application and its core idea; at the same time, for those skilled in the art, according to the idea of the application, there will be changes in the specific implementation and application scope. Application Restrictions.

Claims (10)

1. A quantum dot display panel, characterized in that, the quantum dot display panel comprises: Substrate substrate; A light-emitting chip, the light-emitting chip is arranged above the base substrate; a quantum dot unit, the quantum dot unit is arranged above the light-emitting chip; A polarizer, the polarizer is arranged around the light-emitting chip. 2. The quantum dot display panel according to claim 1, wherein the polarizer is arranged above at least one light-emitting chip to cover the light-emitting chip, and/or the polarizer and at least one light-emitting chip are in contact with the light-emitting chip The vertical sides of the base substrate are arranged in parallel. 3. The quantum dot display panel according to claim 2, wherein when the polarizer is arranged above the at least one light-emitting chip, the orthographic projection of the polarizer in the vertical direction is larger than the at least one Orthographic projection of the light-emitting chip in the vertical direction. 4. The quantum dot display panel according to claim 2, wherein when the polarizer is arranged parallel to the side of the base substrate in at least one light-emitting chip, the polarizer and the at least one All the sides perpendicular to the base substrate in the light-emitting chip are arranged in parallel. 5. The quantum dot display panel according to claim 1, wherein the light-emitting chip is a plurality of light-emitting chips arranged at intervals, the polarizer is arranged above the plurality of light-emitting chips, and the polarizer Covering the plurality of light-emitting chips and interval regions between the plurality of light-emitting chips. 6 . The quantum dot display panel according to claim 1 , wherein the quantum dot display panel further comprises a fluorescent layer, and the fluorescent layer and the quantum dot unit are spaced above the light emitting chip. 7. The quantum dot display panel according to claim 6, wherein the fluorescent layer is a yellow fluorescent layer. 8 . The quantum dot display panel according to claim 6 , wherein the upper surface of the fluorescent layer is at the same level as the upper surface of the quantum dot unit. 9 . The quantum dot display panel according to claim 2 , wherein when the polarizer is arranged above the light-emitting chip, the thickness of the polarizer in the vertical direction is 10 microns to 20 microns. 10. A display device, characterized in that the display device comprises the quantum dot display panel according to any one of claims 1-9.

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