CN115241251A

CN115241251A - Quantum dot substrate, panel, preparation method of quantum dot substrate, panel control method and device

Info

Publication number: CN115241251A
Application number: CN202210899374.6A
Authority: CN
Inventors: 张娟; 孙孟娜; 焦志强; 王鹏
Original assignee: BOE Technology Group Co Ltd
Current assignee: BOE Technology Group Co Ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-10-25

Abstract

A quantum dot substrate, a panel, a preparation method of the quantum dot substrate and the panel, a panel control method and a device belong to the technical field of quantum dots. The quantum dot substrate includes: the quantum dot array substrate comprises a first substrate base plate, and a black matrix and a quantum dot layer which are positioned on the first substrate base plate; the quantum dot layer includes: a plurality of sub-pixel regions positioned between the black matrices, the plurality of sub-pixel regions including a first green sub-pixel region for emitting green light based on incident blue light, and other sub-pixel regions emitting non-green light based on incident blue light and adjacent to the first green sub-pixel region; in the first surface of the black matrix far away from the first substrate, at least part of the inner side of the annular area inclines towards the first substrate, and the annular area surrounds the first green sub-pixel area. The problem that the display effect of quantum dot panel is poor has been solved to this application, has promoted the display effect of quantum dot panel, and this application is used for the quantum dot panel.

Description

Quantum dot substrate, panel, preparation method of quantum dot substrate, panel control method and device

Technical Field

The application relates to the technical field of quantum dots, in particular to a quantum dot substrate, a quantum dot panel, a preparation method of the quantum dot panel, a panel control method and a device.

Background

A Quantum Dot-Organic Light Emitting Diode (QD-OLED) panel (a Quantum Dot panel) is used as the latest display technology, and has the characteristics of wide color gamut, wide viewing angle, ultrahigh contrast, 1500nit peak brightness, better High Dynamic Range Imaging (HDR) display effect, shorter screen response time and the like, thereby bringing better visual experience for users and being expected to become the main display technology of television display. The quantum dot material as a novel luminescent material has the advantages of concentrated luminescent spectrum, high color purity, simple and easily adjustable luminescent color through the size, structure or components of the quantum dot material and the like; the quantum dot ink is further cured into a film after solution processing, spin coating or ink jet printing, and a quantum dot color film is formed, and is a new generation of luminescent material applied to solid state illumination and full color makeup display. The QD-OLED panel can display three colors of red, green, and blue by emitting light only through a light emitting unit (e.g., an OLED emitting blue light). Besides, the QD-OLED panel saves more energy on the basis of keeping the self-luminous property of the OLED light source.

The QD-OLED panel includes red, green, and blue subpixels. The red sub-pixel comprises a light-emitting unit and a red quantum dot block, and the red quantum dot converts blue light emitted by the light-emitting unit into red light; the green sub-pixel comprises a light-emitting unit and a green quantum dot block, and the green quantum dot block converts blue light emitted by the light-emitting unit into green light; the blue sub-pixel includes a light emitting unit and a transmissive block that transmits blue light emitted from the light emitting unit. There is a black matrix separation between quantum dots in adjacent subpixels in the QD-OLED panel.

At this stage, since light emitted by the light emitting unit corresponding to the green sub-pixel leaks to the blue sub-pixel, less blue light is transmitted to the green quantum dot block, and thus less green light is obtained by converting the blue light by the green quantum dot block, resulting in poor display effect of the QD-OLED panel.

Disclosure of Invention

The application provides a quantum dot substrate, a panel, a preparation method of the quantum dot substrate and the panel, a panel control method and a device, which can solve the problem of poor display effect of the quantum dot panel, and the technical scheme is as follows:

in a first aspect, there is provided a quantum dot substrate comprising: the quantum dot array substrate comprises a first substrate base plate, and a black matrix and a quantum dot layer which are positioned on the first substrate base plate;

the quantum dot layer includes: a plurality of sub-pixel regions positioned between the black matrices, the plurality of sub-pixel regions including a first green sub-pixel region for emitting green light based on incident blue light, and other sub-pixel regions emitting non-green light based on incident blue light and adjacent to the first green sub-pixel region;

in a first surface of the black matrix, which is far away from the first substrate base plate, at least part of the inner side of an annular area inclines towards the first substrate base plate, and the annular area surrounds the first green sub-pixel area.

Optionally, the area of the at least part of the inner side in the annular area is: a planar region, or a curved region having at least one of a concave and a convex structure.

Optionally, the at least partial inner side is connected to the second surface of the black matrix close to the first substrate base plate.

Optionally, an area of the first surface, excluding an area of the annular area that is inclined inward toward the first substrate base plate, is parallel to the first substrate base plate.

Optionally, the quantum dot substrate further includes: the first substrate base plate, the color film layer and the quantum dot layer are sequentially arranged.

Optionally, the quantum dot substrate further includes: and the reflecting layer is positioned on the third surface and used for reflecting light incident from one side of the quantum dot layer far away from the first substrate to a sub-pixel region adjacent to the third surface in the quantum dot layer.

Optionally, for a sub-pixel region of at least one of the sub-pixel regions:

one side of the third surface, which is far away from the first substrate base plate, inclines towards the sub-pixel region, and the included angle between the third surface and the second surface ranges from [30 degrees to 90 degrees ];

the third surface is perpendicular to the second surface;

or one side of the third surface far away from the first substrate base plate inclines towards the outside of the sub-pixel region, and the included angle between the third surface and the second surface is (0, 30 degrees).

Optionally, an area of the first surface, except for an area of the annular area, which is inclined inward toward the first substrate base plate, is parallel to the first substrate base plate;

optionally, the plurality of sub-pixel regions constitute a plurality of pixel regions, and the plurality of pixel regions include a first pixel region; the first pixel region includes: one said red sub-pixel region, one said first green sub-pixel region, one said blue sub-pixel region, and one said second green sub-pixel region.

Optionally, the plurality of pixel regions in the quantum dot substrate further include a second pixel region, and the second pixel region includes: one said red quantum dot region, one said blue sub-pixel region, and two said second green sub-pixel regions;

optionally, the plurality of pixel regions further includes a second pixel region, and the second pixel region includes: one said red quantum dot region, one said blue sub-pixel region, and two said second green sub-pixel regions; the plurality of pixel regions are arranged in an array, and the first pixel regions and the second pixel regions are alternately arranged in the row direction and the column direction of the plurality of pixel regions.

In a second aspect, there is provided a quantum dot panel comprising: the second substrate base plate is positioned on the plurality of light-emitting units on the second substrate base plate, and any one of the quantum dot base plates provided by the first aspect; the quantum dot substrate is positioned on one side of the light-emitting unit, which is far away from the second substrate, and the light-emitting unit is positioned on one side of the quantum dot layer, which is far away from the first substrate;

the light-emitting units are in one-to-one correspondence with the sub-pixel regions, and the light-emitting units are used for providing blue light for the corresponding sub-pixel regions.

Optionally, at least one of the plurality of light emitting units is further configured to provide green light to the corresponding sub-pixel region, and the at least one light emitting unit includes: and the light-emitting unit corresponds to at least one sub-pixel area for emitting green light.

Optionally, for one of the light emitting units for emitting blue light and green light, the light emitting unit includes: at least one blue light emitting layer and at least one green light emitting layer laminated;

the blue light emitting layer is used for providing blue light for the sub-pixel area corresponding to the light emitting unit, and the green light emitting layer is used for providing green light for the sub-pixel area corresponding to the light emitting unit.

Optionally, the light emitting unit includes: the two blue light emitting layers and the green light emitting layer are sequentially arranged along the direction far away from the second substrate base plate.

In a third aspect, embodiments of the present application further provide a method for manufacturing a quantum dot substrate, where the method is used to manufacture any one of the quantum dot substrates provided in the first aspect, and the method includes:

providing a first substrate base plate;

forming a black matrix and a quantum dot layer on the first substrate;

wherein the quantum dot layer includes: a plurality of sub-pixel regions positioned between the black matrices, the plurality of sub-pixel regions including a first green sub-pixel region for emitting green light based on incident blue light, and other sub-pixel regions emitting non-green light based on incident blue light and adjacent to the first green sub-pixel region;

In a fourth aspect, embodiments of the present application further provide a method for manufacturing a quantum dot panel, where the method is used to manufacture any one of the quantum dot panels provided in the second aspect, and the method includes:

manufacturing a second substrate, a plurality of light-emitting units positioned on the second substrate, and any one of the quantum dot substrates;

the quantum dot substrate is positioned on one side of the light-emitting unit, which is far away from the second substrate, and the light-emitting unit is positioned on one side of the quantum dot layer, which is far away from the first substrate;

the light emitting units are in one-to-one correspondence with the sub-pixel regions, and the light emitting units are used for providing blue light for the corresponding sub-pixel regions.

In a fifth aspect, an embodiment of the present application further provides a method for controlling a quantum dot panel, where the method is used to control any one of the quantum dot panels provided in the second aspect, and the method includes:

acquiring an image to be displayed of the quantum dot panel;

when the image to be displayed comprises a red sub-pixel, a green sub-pixel and a blue sub-pixel, controlling the light-emitting unit corresponding to the red sub-pixel area, the light-emitting unit corresponding to the first green sub-pixel area and the light-emitting unit corresponding to the blue sub-pixel area to emit blue light;

and when the image to be displayed comprises the green sub-pixel and does not comprise the red sub-pixel and the blue sub-pixel, controlling the light-emitting unit corresponding to the second green sub-pixel area to emit blue light.

In a sixth aspect, an embodiment of the present application further provides a control device for a quantum dot panel, where the control device for the quantum dot panel is configured to control any one of the quantum dot panels provided in the second aspect;

the control device of the quantum dot panel comprises a processor and a memory, wherein the memory stores programs, and the processor is used for executing the programs stored in the memory so as to realize any one of the methods provided by the fifth aspect.

In a seventh aspect, an embodiment of the present application further provides a quantum dot panel device, where the quantum dot panel device includes: the quantum dot panel according to the second aspect, and the control device according to the sixth aspect.

The beneficial effect that technical scheme that this application provided brought includes at least:

in the quantum dot substrate provided by the present application, at least a part of the inner side of the annular region is inclined toward the first substrate base. When the first green sub-pixel region and the light-emitting units (such as OLEDs) corresponding to other adjacent sub-pixel regions in the quantum dot layer emit light simultaneously, the blue light emitted by the light-emitting units corresponding to the other sub-pixel regions in the quantum dot layer can enter the first green sub-pixel region in the quantum dot layer. Therefore, the blue light transmitted to the first green sub-pixel region of the quantum dot layer is increased, the green light obtained by converting the blue light by the first green sub-pixel region of the quantum dot layer is increased, and the display effect of the quantum dot panel is enhanced.

Drawings

Fig. 1 is a schematic structural view of a quantum dot panel provided in the related art;

fig. 2 is a schematic structural diagram of a quantum dot substrate according to an embodiment of the present disclosure;

FIG. 3 is a top view of the quantum dot substrate shown in FIG. 1;

fig. 4 is a schematic structural diagram of another quantum dot substrate provided in the embodiment of the present application;

fig. 5 is a schematic structural diagram of another quantum dot substrate provided in the embodiment of the present application;

fig. 6 is a schematic structural diagram of another quantum dot substrate provided in the embodiment of the present application;

FIG. 7 is a schematic structural diagram of another quantum dot substrate provided in an embodiment of the present application;

fig. 8 is a schematic structural diagram of another quantum dot substrate provided in the embodiment of the present application;

fig. 9 is a schematic structural diagram of another quantum dot substrate provided in the embodiment of the present application;

fig. 10 is a schematic structural diagram of another quantum dot substrate provided in an embodiment of the present application;

fig. 11 is a schematic structural diagram of another quantum dot substrate provided in this embodiment of the present application;

fig. 12 is a schematic structural diagram of another quantum dot substrate provided in the embodiment of the present application;

FIG. 13 is a schematic structural diagram of another quantum dot substrate provided in an embodiment of the present application;

fig. 14 is a schematic structural diagram of another quantum dot substrate provided in the embodiment of the present application;

fig. 15 is a schematic structural diagram of another quantum dot substrate provided in the embodiment of the present application;

fig. 16 is a schematic layout diagram of each sub-pixel region in a pixel region according to an embodiment of the present disclosure;

fig. 17 is a schematic layout diagram of sub-pixel regions in another pixel region according to an embodiment of the present disclosure;

fig. 18 is a schematic layout diagram of sub-pixel regions in another pixel region according to an embodiment of the present disclosure;

fig. 19 is a schematic layout diagram of a pixel region according to an embodiment of the present disclosure;

FIG. 20 is a schematic structural diagram of a quantum dot panel according to an embodiment of the present disclosure;

fig. 21 is a schematic structural diagram of another quantum dot panel provided in an embodiment of the present application;

fig. 22 is a schematic structural diagram of a light emitting unit according to an embodiment of the present application;

fig. 23 is a schematic diagram illustrating a relationship between a wavelength and an intensity of light emitted from a light emitting unit according to an embodiment of the present application;

FIG. 24 is a graph illustrating the relationship between the wavelength and the intensity of light emitted from another light-emitting unit provided in the embodiment of the present application;

FIG. 25 is a graph illustrating the relationship between the wavelength and the intensity of light emitted from another light-emitting unit according to an embodiment of the present disclosure;

fig. 26 is a flowchart of a method for manufacturing a quantum dot substrate according to an embodiment of the present disclosure;

fig. 27 is a schematic view illustrating a manufacturing process of a quantum dot substrate according to an embodiment of the present disclosure;

fig. 28 is a schematic view illustrating a manufacturing process of another quantum dot substrate according to an embodiment of the present application;

FIG. 29 is a flow chart of a method for manufacturing a quantum dot panel according to an embodiment of the present application;

FIG. 30 is a flowchart of a control method for a quantum dot panel according to an embodiment of the present disclosure;

fig. 31 is a block diagram of a control device of a quantum dot panel according to an embodiment of the present application;

fig. 32 is a block diagram of a quantum dot apparatus according to an embodiment of the present application.

Detailed Description

To make the principles, technical solutions and advantages of the present application clearer, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a QD-OLED panel provided in the related art, and as shown in fig. 1, the QD-OLED panel 10 includes: a quantum dot substrate and a light emitting substrate which are arranged oppositely.

The quantum dot substrate includes: a first substrate base 1011, and a black matrix 1012 and a quantum dot layer 1013 on the first substrate base 1011. The light emitting substrate includes: a second substrate 1021, and a plurality of light emitting cells 1022 and pixel defining layers 1023 on the second substrate 1021, the light emitting cells being positioned between the pixel defining layers 1023. The quantum dot layer 1013 and the first substrate 1011 are sequentially arranged in a direction away from the light emitting substrate, and the light emitting unit 1022 and the second substrate 1021 are sequentially arranged in a direction away from the quantum dot substrate. The light Emitting unit 1022 may be an OLED or a Light Emitting Diode (LED), etc.

The QD-OLED panel 10 includes a plurality of sub-pixels, as shown in fig. 1, including: red subpixel XR, green subpixel XG, and blue subpixel XB. In each film layer in the QD-OLED panel, the portion located within one sub-pixel is referred to as one sub-pixel region in the film layer.

The red subpixel XR in the QD-OLED panel 10 includes: a light emitting unit 1022 and a portion of quantum dot layer 1013 within the red subpixel XR (referred to as a red quantum dot block) can convert blue light emitted by light emitting unit 1022 to red light.

The green subpixel XG in the QD-OLED panel comprises: the light emitting unit 1022 and the portion of the quantum dot layer 1013 within the green sub-pixel XG (referred to as a green quantum dot block) are capable of converting blue light emitted by the light emitting unit 1022 into green light.

The blue subpixel XB in the QD-OLED panel comprises: the light emitting unit 1022 and the portion of the quantum dot layer 1013 within the blue subpixel XB (referred to as a transparent block) are capable of transmitting the blue light emitted by the light emitting unit 1022.

Further, the black matrix 1012 may be in a grid shape, the pixel defining layer 1023 may also be in a grid shape, and the plurality of sub-pixels may be located between the black matrix 1012 and between the pixel defining layers 1023. The surface B1 of the black matrix 1012 closer to the first base substrate 1011 and the surface B2 of the black matrix 1011 further from the first base substrate 1011 are both flat.

At this stage, since a certain gap exists between the quantum dot substrate and the light-emitting substrate, the blue light emitted from the light-emitting unit 1022 in the green sub-pixel XG leaks to the adjacent sub-pixel. Therefore, less blue light is transmitted to the green quantum dot block, and less green light is obtained by converting the blue light by the green quantum dot block, which results in poor display effect of the QD-OLED panel. For example, when the red sub-pixel XR, the green sub-pixel XG, and the blue sub-pixel XB all need to emit light, if the green sub-pixel XG emits less green light, the QD-OLED panel may display a bluish image. In addition, the conversion efficiency of the green quantum dot block to the blue light is low, so that the green light obtained by converting the blue light by the green quantum dot block is less, and the display effect of the QD-OLED panel is poor.

The embodiment of the application provides a quantum dot substrate and a quantum dot panel. In the quantum dot substrate and the quantum dot panel, when the green sub-pixel and other adjacent sub-pixels emitting non-green light emit light simultaneously, the blue light emitted by the light emitting units in the other sub-pixel regions can leak into the green sub-pixel more. Therefore, more blue light is transmitted to the quantum dot layer and is positioned in the green sub-pixel, more green light is obtained by converting the blue light by the green quantum dot block, and the display effect of the QD-OLED panel is improved. In addition, even if the conversion efficiency of the part of the quantum dot layer located in the green sub-pixel to the blue light is low, the blue light transmitted to the part of the quantum dot layer located in the green sub-pixel is more, so that the green light obtained by converting the blue light by the green quantum dot block can still be ensured to be more, and the display effect of the QD-OLED panel can still be improved.

Fig. 2 is a schematic structural diagram of a quantum dot substrate 00 according to an embodiment of the present disclosure, where the quantum dot substrate 00 includes: a first substrate 001, and a black matrix 002 and a quantum dot layer 003 on the first substrate 001.

Quantum dot layer 003 includes: a plurality of sub-pixel regions (e.g., 0031A and 0031B in fig. 2) located between the black matrices 002. The plurality of sub-pixel regions of the quantum dot layer 003 include: a first green sub-pixel region 0031A for emitting green light based on incident blue light, and other sub-pixel regions 0031B for emitting non-green light based on incident blue light. It is understood that the plurality of sub-pixel regions of the quantum dot layer 003 may include more than the first green sub-pixel region 0031A and the other sub-pixel regions 0031B shown in fig. 2, only two of which are shown in fig. 2. In addition, the non-green light emitted by the other sub-pixel region of the quantum dot layer 003 may be red light, blue light, or the like, which is not limited in the embodiment of the present application.

Fig. 3 is a top view of the quantum dot substrate shown in fig. 2, and fig. 2 shows the structure of the section XX in fig. 3. Referring to fig. 2 and 3, in the first surface 0021 of the black matrix 002 away from the first substrate 001, at least a part of the inner side of the loop region 00211 is inclined toward the first substrate 001, and the loop region 00211 surrounds the first green sub-pixel region 0031A of the quantum dot layer 003. In fig. 3, for example, all the inner sides of the annular regions 00211 are inclined toward the first substrate 001, and in this case, the portions of the black matrix 002 where the annular regions 00211 are located are funnel-shaped. It is to be understood that a part of the annular region 00211 may be inclined toward the first substrate 001, but another part of the inner side may not be inclined toward the first substrate 001, for example, the region of the annular region 00211 inside the another part is parallel to the first substrate 001.

As described above, in the quantum dot substrate provided in the present application, at least a part of the inner side of the annular region is inclined toward the first substrate. When the light-emitting units (such as OLEDs) corresponding to the first green sub-pixel region and the adjacent other sub-pixel regions in the quantum dot layer emit light simultaneously, the blue light emitted by the light-emitting units corresponding to the other sub-pixel regions in the quantum dot layer can enter the first green sub-pixel region in the quantum dot layer. Therefore, the blue light transmitted to the first green sub-pixel region of the quantum dot layer is increased, the green light obtained by converting the blue light by the first green sub-pixel region of the quantum dot layer is increased, and the display effect of the quantum dot panel on which the quantum dot substrate is arranged is enhanced.

Further, the quantum dot substrate 00 may satisfy at least one of the following conditions 1, 2, 3, and 4.

Condition 1: the area in which at least part of the inner side of the annular area is located is as follows: a planar region, or a curved region having at least one of a concave and convex structure.

By way of example, fig. 4 to 7 are schematic partial structural diagrams of a quantum dot substrate 00 provided in an embodiment of the present application. Note that fig. 4 to 7 show only the first green sub-pixel region 0031A in the quantum dot layer 003, and the loop region 00211 in the first surface 0021 of the black matrix 002.

As shown in fig. 2 or 4, at least a portion of the annular region 00211 is a planar region; alternatively, as shown in fig. 5, at least a portion of the inner side of the annular region 00211 is a curved region having a recess; alternatively, as shown in fig. 6, at least a portion of the inner side of the annular region 00211 is a curved region having a protrusion; alternatively, as shown in fig. 7, at least a portion of the inside of the annular region 00211 is a curved region having a recess and a projection.

It is understood that when at least a portion of the inner side of the annular region 00211 is not a planar region, at least a portion of the inner side of the annular region 00211 may not be a curved region, for example, at least a portion of the inner side of the annular region 00211 is a sawtooth region.

Condition 2: referring to fig. 2, at least a portion of the inner side of the annular region 00211 is connected to the second surface 0022 of the black matrix 002 near the first substrate 001. In this case, in the cross section shown in fig. 2, the portion of the black matrix 002 surrounding the first green sub-pixel region 0031A of the quantum dot layer 003 has two triangles.

Alternatively, at least a part of the inner side of the annular region 00211 may not be connected to the second surface 0022. As shown in fig. 4, at least a part of the inner side of the loop region 00211 is connected to the second surface 0022 via a third surface 0023, and the third surface 0023 is a surface of the black matrix 002 near the first green subpixel region 0031A in the quantum dot layer 003.

Condition 3: referring to fig. 2 and 3, an area 00212 of the first surface 0021, excluding an area inclined toward the first substrate 001 at an inner side of the annular area 00211, is parallel to the first substrate 001. Illustratively, when all inner sides of the above-described annular region 00211 in the first surface 0021 are inclined toward the first substrate base plate 011, a region 00212 in the first surface other than the annular region 00211 is parallel to the first substrate base plate 0011.

Condition 4: the quantum dot substrate further includes: the color film layer, the first substrate base plate, the color film layer and the quantum dot layer are sequentially arranged between the black matrixes. Illustratively, as shown in fig. 8, on the basis of the quantum dot substrate 00 shown in fig. 2, the quantum dot substrate 00 further includes a color film layer 004.

When the quantum dot substrate 00 includes the color film layer 004, the sub-pixel regions (e.g., 0031A and 0031B in fig. 8) in the quantum dot layer 003 and the sub-pixel regions (e.g., 0041A and 0041B in fig. 8) in the color film layer 003 correspond one-to-one. The sub-pixel region in the color film layer 004 can filter light emitted from the corresponding sub-pixel region in the quantum dot layer 003, so as to improve the light-emitting purity of the sub-pixel region in the quantum dot panel where the quantum dot substrate 00 is located. For example, for a first green sub-pixel region 0031A in quantum dot layer 003, the corresponding sub-pixel region 0041A in color film layer 004 of the first sub-pixel region 0031A of quantum dot layer 003 can: green light emitted by the first green sub-pixel region 0031A of the quantum dot layer 003 is passed through, and light of colors other than green (e.g., blue light) emitted by the first green sub-pixel region 0031A of the quantum dot layer 003 is filtered out.

Further, fig. 9 is a schematic structural diagram of another quantum dot substrate 00 provided in this embodiment. As shown in fig. 9, in addition to fig. 2, for one sub-pixel region (e.g., the other sub-pixel regions 0031B in fig. 9) of at least one sub-pixel region among the plurality of sub-pixel regions of the quantum dot layer 003, the first surface 0021 is connected to a third surface 0023 of the sub-pixel region of the black matrix 002 near the quantum dot layer 003, and the third surface 0023 is connected to a second surface 0022 of the black matrix 002 near the first substrate 001.

In fig. 9, the example is that the at least one sub-pixel region of quantum dot layer 003 includes other sub-pixel regions 0031B of quantum dot layer 003 and does not include first green sub-pixel region 0031A of quantum dot layer 003. Only one other sub-pixel region 0031B is shown in fig. 9, and it is to be understood that the at least one sub-pixel region may include a plurality of other sub-pixel regions 0031B. The plurality of other sub-pixel regions 0031B may include: the sub-pixel region is used for emitting red light according to the received blue light, and the sub-pixel region is used for transmitting the received blue light.

It is understood that the at least one sub-pixel region of quantum dot layer 003 may also include sub-pixel regions other than sub-pixel region 0031B of quantum dot layer 003. For example, the at least one sub-pixel region of quantum dot layer 003 can further include first green sub-pixel region 0031A of quantum dot layer 003, which is not limited in this embodiment.

When the plurality of sub-pixel regions of quantum dot layer 003 include the at least one sub-pixel region, quantum dot substrate 00 further includes: a reflective layer 005 on the third surface 0023. The reflective layer 005 is for reflecting light incident from the side of the quantum dot layer 003 away from the first substrate 001 to a sub-pixel region adjacent to the third surface 0023 in the quantum dot layer 003. For example, the reflective layer 005 in fig. 9 may reflect light incident from the side of the quantum dot layer 003 remote from the first substrate 001 to the other sub-pixel region 0031B of the quantum dot layer 003.

When the reflective layer 005 is provided on the third surface 0024 of the black matrix 002, the reflective layer 005 can prevent the light incident from the side of the quantum dot layer 003 away from the first substrate 001 from being absorbed by the black matrix 002, and can increase the light transmitted to the sub-pixel region adjacent to the third surface 0023 in the quantum dot layer 003. Thus, the light output amount of the sub-pixel region in the quantum dot layer 003 can be further increased, and the display effect of the quantum dot panel can be further enhanced.

Optionally, the reflective layer is made of metal (e.g., al, au, ag, or alloy); the reflecting Layer can be prepared by magnetron sputtering, evaporation or Atomic point Deposition (ALD).

Further, for one sub-pixel region of at least one sub-pixel region of the quantum dot substrate 00, the sub-pixel region may satisfy any one of the following conditions 4, 5, and 6:

condition 4: as shown in fig. 10, a side of the third surface 0023 away from the first substrate 001 is inclined toward the sub-pixel region, and an included angle a between the third surface 0023 and the second surface 0022 is [30 degrees, 90 degrees ]. In this case, in the cross section shown in fig. 10, the portion of black matrix 002 surrounding the sub-pixel region in quantum dot layer 003 has an inverted trapezoidal shape, and accordingly, the shape of the sub-pixel region of quantum dot layer 003 has a regular trapezoidal shape. In fig. 10, the included angle a is 60 degrees as an example, and it is understood that the included angle a may be other angles [30 degrees, 90 degrees ], such as 30 degrees, 40 degrees, or 75 degrees.

Condition 5: as shown in fig. 11, the third surface 0023 is perpendicular to the second surface 0022. In this case, in the cross section shown in fig. 11, the portion of the black matrix 002 surrounding the sub-pixel region of the quantum dot layer 003 and the shape of the sub-pixel region are both rectangular, and the angle a between the third surface 0023 and the second surface 0022 is 90 degrees.

Condition 6: as shown in fig. 12, one side of the third surface 0023 away from the first substrate 001 is inclined to the outside of the sub-pixel region, and the range of the included angle a between the third surface 0023 and the second surface 0022 is (0 degrees, 30 degrees), in this case, in the cross section shown in fig. 12, the portion of the black matrix 002 surrounding the sub-pixel region in the quantum dot layer 003 is in the form of a regular trapezoid, and accordingly, the sub-pixel region of the quantum dot layer 003 is in the form of an inverted trapezoid, wherein the included angle a is 30 degrees in fig. 12, it is understood that the included angle a may be other angles (0 degrees, 30 degrees), such as 10 degrees, 20 degrees, and the like.

Alternatively, as shown in fig. 13, in the quantum dot substrate 00, the plurality of sub-pixel regions of the quantum dot layer 003 include: a first green sub-pixel region 0031A, a red sub-pixel region 0031BC, a blue sub-pixel region 0031BD, and a second green sub-pixel region 0031E; the red subpixel region 0031BC and the blue subpixel region 0031BD are both adjacent to the first green subpixel region 0031A; the second green sub-pixel region 0031E is configured to emit green light based on the incident blue light, the red sub-pixel region 0031BC is configured to emit red light based on the incident blue light, and the blue sub-pixel region 0031BD is configured to transmit the incident blue light. The other sub-pixel region 0031B includes: a red sub-pixel region 0031BC and a blue sub-pixel region 0031BD.

As shown in fig. 13, the regions of the first surface 0021 other than the region inclined toward the first substrate base 001 from the inner side in the ring-shaped region surrounding the first green sub-pixel region 0031A are parallel to the first substrate base 001.

Optionally, the plurality of sub-pixel regions of the quantum dot layer 003 constitute a plurality of pixel regions including the first pixel region a. For example, the plurality of pixel regions are all the first pixel regions a, or a part of the pixel regions are the first pixel regions a. The first pixel region a may include: a red subpixel region 0031BC, a first green subpixel region 0031A, a blue subpixel region 0031BD, and a second green subpixel region 0031BE. Illustratively, as shown in fig. 13, a plurality of sub-pixel regions in the first pixel region a of the quantum dot layer 003 are sequentially arranged, forming an RGBG structure as shown in fig. 13. Also, the plurality of sub-pixel regions in the first pixel region a are isolated from each other by the black matrix 002. In fig. 13, the black matrix 002 adjacent to the first green sub-pixel region 0031A may be as shown in fig. 2, and alternatively, the black matrix 002 adjacent to the first green sub-pixel region 0031A may be as shown in fig. 4, 5, 6 or 7.

Note that the first pixel region a is not limited to include, as shown in fig. 13: a red sub-pixel region 0031BC, a first green sub-pixel region 0031A, a blue sub-pixel region 0031BD, and a second green sub-pixel region 0031BE. For example, the first pixel region a may include, as shown in fig. 14: one red sub-pixel region 0031BC, one first green sub-pixel region 0031A, and one blue sub-pixel region 0031BD. Similarly, in fig. 14, the black matrix 002 adjacent to the first green sub-pixel region 0031A may be as shown in fig. 2, and alternatively, the black matrix 002 adjacent to the first green sub-pixel region 0031A may be as shown in fig. 4, 5, 6, or 7.

As shown in fig. 15, the plurality of pixel regions may include a second pixel region B in addition to the first pixel region a. Illustratively, when the first pixel region a is as shown in fig. 13, the second pixel region B includes: one red subpixel area 0031BC, one blue subpixel area 0031BD, and two second green subpixel areas 0031E; the plurality of sub-pixel regions in the second pixel region B are sequentially arranged, and the plurality of sub-pixel regions are isolated by the black matrix 002.

When the quantum dot panel where the quantum dot substrate is located displays a red picture (only including red sub-pixels), the light-emitting unit corresponding to the red sub-pixel region in the quantum dot layer emits blue light, and the light-emitting units corresponding to the green sub-pixel region and the blue sub-pixel region do not emit light. When the quantum dot panel where the quantum dot substrate is located displays a blue picture (only including blue sub-pixels), the light-emitting units corresponding to the blue sub-pixel regions in the quantum dot layer emit blue light, and the light-emitting units corresponding to the red sub-pixel regions and the green sub-pixel regions do not emit light. In the embodiment of the present application, the shapes of the black matrixes 002 adjacent to the two second green sub-pixel regions 0031E in the second pixel region B are not changed. Therefore, when the quantum dot panel where the quantum dot substrate is located displays a red screen or a blue screen, light emitted by the light-emitting unit corresponding to the red sub-pixel region 0031BC or the blue sub-pixel region 0031BD in the second pixel region B does not leak to the adjacent second green sub-pixel region 0031E in a large amount. Therefore, the quantum dot panel can normally display a red picture or a blue picture.

In addition, when the quantum dot panel where the quantum dot substrate is located displays a green picture (only including green sub-pixels), the light emitting units corresponding to the first green sub-pixel region and/or the second green sub-pixel region in the quantum dot layer emit blue light, and the light emitting units corresponding to the red sub-pixel region and the blue sub-pixel region do not emit light. When a picture displayed by the quantum dot panel where the quantum dot substrate is located comprises a red sub-pixel, a green sub-pixel and a blue sub-pixel, the light-emitting units corresponding to the first green sub-pixel region and/or the second green sub-pixel region in the quantum dot layer emit blue light, and the light-emitting units corresponding to the red sub-pixel region and the blue sub-pixel region also emit blue light.

It is to be understood that, when the first pixel region a is as shown in fig. 14, the second pixel region may include: a red sub-pixel region, a blue sub-pixel region, and a second green sub-pixel region.

Further, the arrangement of each sub-pixel region in the pixel region of the quantum dot substrate 00 is various, and this is not limited in the embodiment of the present application. Two alternative arrangements of sub-pixel regions may be illustrated in fig. 16 and 17, for example.

An alternative arrangement of the sub-pixel regions may be as shown in fig. 16, where fig. 16 is a top view of one pixel region in the quantum dot substrate 00. The pixel region may be the first pixel region a or the second pixel region B. When the pixel region is the first pixel region a, the first pixel region a includes: a second green sub-pixel region 0031E, a blue sub-pixel region 0031BD, a first green sub-pixel region 0031A, and a red sub-pixel region 0031BC arranged in this order. When the pixel region is the second pixel region B, the second pixel region B includes: a second green sub-pixel region 0031E, a blue sub-pixel region 0031BD, a second green sub-pixel region 0031E, and a red sub-pixel region 0031BC arranged in this order. In fig. 16, the areas of the first green sub-pixel region 0031A and the second green sub-pixel region 0031E are the same, and the areas of the red sub-pixel region 0031BC and the blue sub-pixel region 0031BD are the same, and. The area of the first green sub-pixel region 0031A is smaller than that of the blue sub-pixel region 0031BD. For example, the areas of the red and blue sub-pixel regions 0031BC and 0031BD are 68.07% of the reference area, and the areas of the first and second

green sub-pixel regions

0031A and 0031E are 25.93% of the reference area.

Another alternative arrangement of the sub-pixel regions may be as shown in fig. 17, in which a blue sub-pixel region 0031BD and a red sub-pixel region 0031BC are located between two green sub-pixel regions in the pixel region. And, the arrangement direction of the blue sub-pixel region 0031BD and the red sub-pixel region 0031BC is perpendicular to the arrangement direction of the two green sub-pixel regions. When the pixel region is the first pixel region a, the two green sub-pixel regions may be: a first green subpixel region 0031A and a second green subpixel region 0031E; when the pixel region is the second pixel region B, both of the two green sub-pixel regions may be the second green sub-pixel region 0031E. The areas of the two green sub-pixel areas and the red sub-pixel area in the pixel area are the same and are both larger than the area of the blue sub-pixel area.

In addition, the shape of each sub-pixel region in the pixel region of the quantum dot substrate 00 is various, such as a rectangle, a circle, an ellipse, a pentagon, a hexagon (e.g., a regular hexagon), or other polygons, and the present application does not limit this. Illustratively, the shape of the sub-pixel region may be as shown in fig. 16, 17, or 18.

Alternatively, in the case where the plurality of pixel regions include the first pixel region a and the second pixel region B described above, the plurality of pixel regions are arranged in an array, as shown in fig. 19, and the first pixel region a and the second pixel region B are each alternately arranged in the row direction and the column direction of the plurality of pixel regions.

It is to be understood that, when the plurality of pixel regions includes the first pixel region a and the second pixel region B, the arrangement of the first pixel region a and the second pixel region B may be different from that shown in fig. 19. For example, the plurality of pixel regions include a plurality of columns of first pixel regions a and a plurality of columns of second pixel regions B, and the first pixel regions a and the second pixel regions B are alternately arranged in the row direction of the pixel regions.

As described above, in the quantum dot substrate provided in the present application, at least a part of the inner side of the annular region is inclined toward the first substrate. When the first green sub-pixel region and the light-emitting units (such as OLEDs) corresponding to other adjacent sub-pixel regions in the quantum dot layer emit light simultaneously, the blue light emitted by the light-emitting units corresponding to the other sub-pixel regions in the quantum dot layer can enter the first green sub-pixel region in the quantum dot layer. Therefore, the blue light transmitted to the first green sub-pixel region of the quantum dot layer is increased, the green light obtained by converting the blue light by the first green sub-pixel region of the quantum dot layer is increased, and the display effect of the quantum dot panel on which the quantum dot substrate is arranged is enhanced.

Based on the quantum dot substrate provided by the embodiment of the present application, the embodiment of the present application also provides a quantum dot panel including the quantum dot substrate.

Exemplarily, fig. 20 is a schematic structural diagram of a quantum dot panel 01 provided in an embodiment of the present application, and as shown in fig. 20, the quantum dot panel 01 includes: a second substrate 006, a plurality of light emitting units 007 on the second substrate 006, and any one of the above quantum dot substrates. It should be noted that, in fig. 20, the quantum dot substrate shown in fig. 13 is taken as an example, and alternatively, the quantum dot substrate may also be another quantum dot substrate provided in the embodiments of the present application, such as the quantum dot substrate shown in fig. 2, fig. 14, or fig. 15. The quantum dot panel 01 may further include pixel defining layers 008 on the second substrate 006, and the light emitting unit 007 may be positioned between the pixel defining layers 008.

As shown in fig. 20, the quantum dot substrate is located on the side of the light-emitting unit 007 away from the second substrate 006, and the light-emitting unit 007 is located on the side of the quantum dot layer 003 away from the first substrate 01; the light emitting units 007 correspond one-to-one to the sub-pixel regions of the quantum dot layer 003 in the quantum dot substrate, and the light emitting units 007 may be used to supply blue light to their corresponding sub-pixel regions in the quantum dot layer 003.

The quantum dot panel 01 includes a plurality of sub-pixels, each of which may include one light emitting unit 007 and a corresponding sub-pixel region of the light emitting unit in the quantum dot layer 003. The light emitting unit 007 is capable of emitting blue light to a corresponding sub-pixel region in the quantum dot layer 003, so that the sub-pixel region emits red, green, or blue light.

In summary, in the quantum dot panel provided by the present application, at least a part of the inner side of the annular region of the quantum dot substrate is inclined toward the first base substrate. When the light-emitting units (such as OLEDs) corresponding to the first green sub-pixel region and the adjacent other sub-pixel regions in the quantum dot layer emit light simultaneously, the blue light emitted by the light-emitting units corresponding to the other sub-pixel regions in the quantum dot layer can enter the first green sub-pixel region in the quantum dot layer. Therefore, the blue light transmitted to the first green sub-pixel region of the quantum dot layer is increased, the green light obtained by converting the blue light into the first green sub-pixel region of the quantum dot layer is increased, and the display effect of the quantum dot panel on which the quantum dot substrate is arranged is enhanced.

Optionally, at least one light emitting unit 007 among the plurality of light emitting units 007 is further configured to provide green light to a corresponding sub-pixel region in the quantum dot layer 003, and the at least one light emitting unit 007 includes at least: the quantum dot layer 003 has a light-emitting unit 007 corresponding to at least one sub-pixel region for emitting green light.

Exemplarily, it is assumed that the at least one light emitting unit 007 includes: the quantum dot layer 003 includes a light-emitting unit 007 corresponding to a first green sub-pixel region for emitting green light, and a light-emitting unit 007 corresponding to a second green sub-pixel region for emitting green light. Fig. 21 is a schematic structural diagram of another quantum dot panel 01 according to an embodiment of the present disclosure. As shown in fig. 21, the plurality of light emitting units in this quantum dot panel 01 includes a light emitting unit 007A, a light emitting unit 007B, a light emitting unit 007C, and a light emitting unit 007D. Here, the light-emitting unit 007A corresponds to the second green sub-pixel region 0031E in the quantum dot layer 003, the light-emitting unit 007B corresponds to the blue sub-pixel region 0031BD in the quantum dot layer 003, the light-emitting unit 007C corresponds to the first green sub-pixel region 0031A in the quantum dot layer 003, and the light-emitting unit 007D corresponds to the red sub-pixel region 0031BC in the quantum dot layer 003. Each of the light-emitting

units

007A, 007B, 007C, and 007D is configured to emit blue light to a corresponding sub-pixel region in the quantum dot layer 003, and the light-emitting

units

007A and 007C are also configured to emit green light to a corresponding sub-pixel region in the quantum dot layer 003.

It is understood that the at least one light emitting unit 007 may include: light-emitting units 007 corresponding to a partial sub-pixel region in quantum dot layer 003 for emitting green light, or light-emitting units 007 corresponding to all sub-pixel regions in quantum dot layer 003 for emitting green light. The at least one light emitting unit 007 may further include: the light-emitting unit 007 corresponding to the sub-pixel region for emitting red light in the quantum dot layer 003, and/or the light-emitting unit 007 corresponding to the sub-pixel region for emitting blue light in the quantum dot layer 003.

As can be seen from the above, the plurality of light emitting units in the quantum dot panel includes: at least one light emitting unit for emitting blue light and green light, and the at least one light emitting unit includes: and the quantum dot layer is provided with at least one light-emitting unit corresponding to the sub-pixel region for emitting green light. Thus, green light entering at least one sub-pixel region of the quantum dot layer for emitting green light is increased, and green light emitted by at least one sub-pixel region of the quantum dot layer for emitting green light is increased, thereby enhancing the display effect of the quantum dot panel.

Further, as for one light emitting unit for emitting blue light and green light, the implementation manner of the light emitting unit is various, and several of the implementation manners will be explained as examples below.

Fig. 22 is a schematic structural diagram of a light emitting unit for emitting blue light and green light according to an embodiment of the present disclosure. As shown in fig. 22, the light emitting unit 007 includes: and at least one blue light emitting layer 0071 and at least one green light emitting layer 0072 which are stacked. The blue light emitting layer 0071 serves to supply blue light to a sub-pixel region corresponding to the light emitting unit 007, and the green light emitting layer 0072 serves to supply green light to a sub-pixel region corresponding to the light emitting unit 007.

Fig. 22 exemplifies that the at least one blue light emitting layer 0071 includes two blue light emitting layers 0071, the at least one green light emitting layer 0072 includes one green light emitting layer 0072, and the two blue light emitting layers 0071 and the one green light emitting layer 0072 are sequentially stacked in a direction away from the second substrate 006.

It is to be understood that the number of the blue light emitting layers 0071 in the at least one blue light emitting layer 0071 may also be other than 2, for example, the number may be 1, 3, 4, or 5, etc.; the number of the green light emitting layers 0072 in the at least one green light emitting layer 0072 may also be other than 1, and for example, the number may be 2, 3, 4, or the like. The at least one blue light emitting layer 0071 and the at least one green light emitting layer 0072 may be stacked in other manners. In addition, at least a part of the green light emitting layer 0072 may be replaced with a light emitting layer capable of emitting green and blue light at the same time.

As can be seen from the above, the light emitting unit in the embodiment of the present application may include at least one blue light emitting layer and at least one green light emitting layer.

On the one hand, when the light-emitting unit comprises a plurality of blue light-emitting layers, the light-emitting unit emits more blue light to the sub-pixel region corresponding to the light-emitting unit in the quantum dot layer. Therefore, blue light transmitted to the sub-pixel area is increased, light emitted after the sub-pixel area converts the blue light is increased, and the display effect of the quantum dot panel is enhanced. Illustratively, fig. 23 shows the relationship between the intensity of light emitted by the light-emitting unit and the number of light-emitting layers when the light-emitting unit includes one blue light-emitting layer, two blue light-emitting layers, three blue light-emitting layers, and four blue light-emitting layers, respectively. As can be seen from fig. 23, the more the light emitting unit includes the blue light emitting layer, the higher the intensity of blue light (light having a wavelength in the vicinity of 400 nm to 480 nm) emitted from the light emitting unit.

On the other hand, when the light emitting unit includes at least one blue light emitting layer and at least one green light emitting layer, or the light emitting unit includes at least one blue light emitting layer and at least one light emitting layer capable of emitting green light and blue light, the emission of blue light and green light by the light emitting unit is increased. Therefore, blue light and green light transmitted to the corresponding sub-pixel regions of the light-emitting units in the quantum dot layer are increased, green light obtained by converting the blue light by the sub-pixel regions and green light directly emitted by the sub-pixel regions are increased, and the display effect of the quantum dot panel is enhanced.

For example, as shown in fig. 24, one light emitting unit for emitting blue and green light may include: two blue light emitting layers and one green light emitting layer are sequentially laminated in a direction away from the second base substrate. Alternatively, one light emitting unit for emitting blue and green light may also include: two blue light emitting layers and one light emitting layer capable of emitting green light and blue light, which are sequentially stacked in a direction away from the second base substrate. It can be seen that in these cases the light emitting unit can emit blue light with a higher intensity (light with wavelengths around 400 nm-480 nm) and green light with a higher intensity (light with wavelengths around 505 nm-566 nm).

As another example, as shown in fig. 25, one light emitting unit for emitting blue and green light may further include: three blue light emitting layers and one green light emitting layer are sequentially stacked in a direction away from the second base substrate. Alternatively, one light emitting unit for emitting blue light and green light may also include: three blue light emitting layers and one light emitting layer capable of emitting green light and blue light are sequentially stacked in a direction away from the second base substrate. Alternatively, one light emitting unit for emitting blue and green light may also include: two blue light emitting layers and two light emitting layers capable of emitting green light and blue light, which are sequentially stacked in a direction away from the second base substrate. It can be seen that in these cases the light emitting unit can emit blue light with a higher intensity (light with wavelengths around 400 nm-480 nm) and green light with a higher intensity (light with wavelengths around 505 nm-566 nm).

Since the voltage required to drive the green light emitting layer to emit light is lower than that required to drive the blue light emitting layer to emit light, the introduction of the green light emitting layer or the light emitting layer that can simultaneously emit blue and green light does not cause a significant increase in power consumption of the light emitting unit, thereby extending the life of the light emitting unit.

In summary, the embodiments of the present application provide a quantum dot panel, each light emitting unit includes: an anode 0073 (shown in fig. 22), at least one light emitting layer, and a cathode 0074 (shown in fig. 22) sequentially arranged in a direction away from the second substrate 06, each of the at least one light emitting layer may emit blue and/or green light.

Alternatively, the light emitting unit for emitting blue light and green light may not include at least one blue light emitting layer and at least one green light emitting layer, for example, the light emitting unit may include at least one light emitting layer capable of emitting green light and blue light simultaneously, which is not limited in this embodiment.

Based on the quantum dot substrate provided by the embodiment of the application, the embodiment of the application provides a manufacturing method of the quantum dot substrate. Fig. 26 is a flowchart of a manufacturing method of a quantum dot substrate according to an embodiment of the present application, the manufacturing method being applicable to any one of the above methods for manufacturing a quantum dot substrate, and the manufacturing method including:

step 2201, a first substrate is provided.

Step 2202, forming a black matrix and a quantum dot layer on the first substrate; wherein the quantum dot layer includes: a plurality of sub-pixel regions positioned between the black matrices, the plurality of sub-pixel regions including a first green sub-pixel region for emitting green light based on incident blue light, and other sub-pixel regions emitting non-green light based on incident blue light and adjacent to the first green sub-pixel region; in the first surface of the black matrix far away from the first substrate, at least part of the inner side of the annular area inclines towards the first substrate, and the annular area surrounds the first green sub-pixel area.

Alternatively, as shown in fig. 27, in step 2202, a black matrix may be formed on the first substrate, and the black matrix may be formed by exposure and development, and then, as shown in fig. 2, a quantum dot layer may be formed on the first substrate on which the black matrix is formed.

In addition, when the quantum dot substrate further includes a color film layer, the method for manufacturing a quantum dot substrate provided in the embodiment of the present application may further include: and forming a color film layer on the first substrate base plate. For example, as shown in fig. 27, after a black matrix is formed on a first substrate, as shown in fig. 28, a color film layer is formed on the first substrate on which the black matrix is formed, and then, as shown in fig. 8, a quantum dot layer is formed on the first substrate on which the black matrix and the color film layer are formed.

In summary, in the quantum dot substrate manufactured by the method for manufacturing a quantum dot substrate according to the embodiment of the present application, at least a part of the inner side of the annular region is inclined toward the first substrate. When the first green sub-pixel region and the light-emitting units (such as OLEDs) corresponding to other adjacent sub-pixel regions in the quantum dot layer emit light simultaneously, the blue light emitted by the light-emitting units corresponding to the other sub-pixel regions in the quantum dot layer can enter the first green sub-pixel region in the quantum dot layer. Therefore, the blue light transmitted to the first green sub-pixel region of the quantum dot layer is increased, the green light obtained by converting the blue light by the first green sub-pixel region of the quantum dot layer is increased, and the display effect of the quantum dot panel is enhanced.

Based on the quantum dot panel provided by the embodiment of the application, the embodiment of the application also provides a manufacturing method of the quantum dot panel. Fig. 29 is a flowchart of a manufacturing method of a quantum dot panel according to an embodiment of the present application, the manufacturing method is used for manufacturing any one of the quantum dot panels, and the manufacturing method includes:

step 201, manufacturing a second substrate, a plurality of light emitting units on the second substrate, and any one of the quantum dot substrates provided by the embodiments of the present application; the quantum dot substrate is positioned on one side of the light-emitting unit, which is far away from the second substrate, and the light-emitting unit is positioned on one side of the quantum dot layer, which is far away from the first substrate; the light emitting units correspond to the sub-pixel regions one by one, and the light emitting units are used for providing blue light to the corresponding sub-pixel regions.

The manufacturing method employed in step 201 may be any of a variety of manufacturing methods. The following explanation will be given by taking the first manufacturing method and the second manufacturing method as examples.

In the first manufacturing method, the quantum dot substrate and the light emitting substrate including the second substrate and the light emitting unit may be manufactured separately, and then the quantum dot substrate and the light emitting substrate may be disposed opposite to each other to form the quantum dot panel.

In the second manufacturing method, after the quantum dot substrate is manufactured, a flat layer is provided on the quantum dot substrate, and then the other structures (the second substrate and the light-emitting unit) in the quantum dot panel are sequentially manufactured on the flat layer. In this case, the quantum dot panel provided by the embodiment of the present application further includes the planarization layer.

In summary, in the quantum dot panel manufactured by the method provided in the embodiment of the present application, at least a part of the inner side of the annular region of the quantum dot substrate is inclined toward the first substrate. When the first green sub-pixel region and the light-emitting units (such as OLEDs) corresponding to other adjacent sub-pixel regions in the quantum dot layer emit light simultaneously, the blue light emitted by the light-emitting units corresponding to the other sub-pixel regions in the quantum dot layer can enter the first green sub-pixel region in the quantum dot layer. Therefore, the blue light transmitted to the first green sub-pixel region of the quantum dot layer is increased, the green light obtained by converting the blue light by the first green sub-pixel region of the quantum dot layer is increased, and the display effect of the quantum dot panel is enhanced.

Based on the quantum dot panel provided by the embodiment of the application, the embodiment of the application provides a control method of the quantum dot panel. Exemplarily, fig. 30 is a flowchart of a control method of a quantum dot panel according to an embodiment of the present application. The control method is used for controlling any one of the quantum dot panels in which the quantum dot substrate includes the first pixel region, such as a quantum dot panel in which the quantum dot substrate includes only the first pixel region, or a quantum dot panel in which the quantum dot substrate includes the first pixel region and the second pixel region. And, the first pixel region includes: a first green sub-pixel region, a red sub-pixel region, a blue sub-pixel region, and a second green sub-pixel region, the second pixel region including: a red sub-pixel region, a blue sub-pixel region, and two second green sub-pixel regions. As shown in fig. 30, the control method includes:

step 301, obtaining an image to be displayed of the quantum dot panel.

Step 302, when the image to be displayed includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel, controlling the light-emitting unit corresponding to the red sub-pixel region, the light-emitting unit corresponding to the first green sub-pixel region, and the light-emitting unit corresponding to the blue sub-pixel region to emit blue light.

Step 303, when the image to be displayed includes a green sub-pixel and does not include a red sub-pixel and a blue sub-pixel, controlling the light emitting unit corresponding to the second green sub-pixel region to emit blue light.

Here, for example, the quantum dot substrate in the quantum dot panel to be controlled includes the second green sub-pixel region, alternatively, the quantum dot substrate may not include the second green sub-pixel region and includes the first green sub-pixel region. When the quantum dot panel where the quantum dot substrate is located is controlled, in step 303, when the image to be displayed includes a green sub-pixel and does not include a red sub-pixel and a blue sub-pixel, the light emitting unit corresponding to the first green sub-pixel region is controlled to emit blue light.

Based on the control method of the quantum dot panel provided by the embodiment of the application, the embodiment of the application provides a control device of the quantum dot panel. The control device is used for controlling any one of the quantum dot panels of which the quantum dot substrate comprises the first pixel region, such as a quantum dot panel of which the quantum dot substrate only comprises the first pixel region, or a quantum dot panel of which the quantum dot substrate comprises the first pixel region and the second pixel region. And, the first pixel region includes: a first green sub-pixel region, a red sub-pixel region, a blue sub-pixel region, and a second green sub-pixel region, the second pixel region including: a red sub-pixel region, a blue sub-pixel region, and two second green sub-pixel regions.

Illustratively, as shown in fig. 31, the control device of the quantum dot panel includes:

the obtaining module 2501 is configured to obtain an image to be displayed of the quantum dot panel.

The first control module 2502 is configured to, when the image to be displayed includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel, control the light-emitting unit corresponding to the red sub-pixel region, the light-emitting unit corresponding to the first green sub-pixel region, and the light-emitting unit corresponding to the blue sub-pixel region to emit blue light.

The second control module 2503 is configured to control the light emitting unit corresponding to the second green sub-pixel region to emit blue light when the image to be displayed includes a green sub-pixel and does not include the red sub-pixel and the blue sub-pixel.

The embodiment of the application provides another control device of a quantum dot panel, which is used for controlling any one of the quantum dot panels; the control device of the quantum dot panel comprises a processor and a memory, wherein the memory stores programs, and the processor is used for executing the programs stored in the memory so as to realize any one of the control methods of the quantum dot panel provided by the embodiments of the application, such as the control method shown in fig. 30.

The embodiment of the application provides a storage medium, wherein a computer program is stored in the storage medium; when the computer program runs on a computer, the computer is caused to execute any one of the control methods of the quantum dot panel provided by the embodiments of the present application, such as the control method shown in fig. 30.

The embodiment of the present application further provides a computer program product containing instructions, which when the computer program product runs on a computer, causes the computer to execute any one of the control methods of the quantum dot panel provided in the embodiments of the present application, such as the control method shown in fig. 30.

An embodiment of the present application provides a quantum dot device, as shown in fig. 32, including: any one of the above-described quantum dot panels 01, and a control device 02 of the above-described quantum dot panel 01. The quantum dot panel 01 is connected to the control device 02 of the quantum dot panel 01, and the control device 02 of the quantum dot panel 01 controls the quantum dot panel 01 to display an image.

The quantum dot device can be any product or component with a display function, such as electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.

The above description is intended only to illustrate the alternative embodiments of the present application, and should not be construed as limiting the present application, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A quantum dot substrate, comprising: the device comprises a first substrate, a black matrix and a quantum dot layer, wherein the black matrix and the quantum dot layer are positioned on the first substrate;

2. A quantum dot substrate according to claim 1, wherein the quantum dot substrate satisfies at least one of the following conditions:

the area of the at least partial inner side in the annular area is: a planar region, or a curved region having at least one of a concave and convex structure;

the at least partial inner side is connected with the second surface of the black matrix close to the first substrate base plate;

an area of the first surface other than an area of the annular area inclined inward toward the first base substrate is parallel to the first base substrate;

and, the quantum dot substrate further includes: the color film layer is positioned between the black matrixes, and the first substrate base plate, the color film layer and the quantum dot layer are sequentially arranged.

3. A quantum dot substrate according to claim 1 or 2, wherein for a sub-pixel region of at least one of the sub-pixel regions, the first surface is connected to a third surface of the black matrix adjacent to the sub-pixel region, the third surface is connected to a second surface of the black matrix adjacent to the first substrate;

the quantum dot substrate further includes: and the reflecting layer is positioned on the third surface and used for reflecting light incident from one side of the quantum dot layer far away from the first substrate to a sub-pixel region adjacent to the third surface in the quantum dot layer.

4. A quantum dot substrate of claim 3, wherein for a sub-pixel region of at least one of the sub-pixel regions:

one side of the third surface, which is far away from the first substrate base plate, inclines towards the sub-pixel region, and the included angle between the third surface and the second surface is [30 degrees, 90 degrees ];

the third surface is perpendicular to the second surface;

or, one side of the third surface, which is far away from the first substrate, is inclined to the outside of the sub-pixel region, and the range of the included angle between the third surface and the second surface is (0, 30 degrees).

5. A quantum dot substrate according to claim 1 or 2, wherein the plurality of sub-pixel regions comprise: the first green sub-pixel region, the red sub-pixel region, the blue sub-pixel region and the second green sub-pixel region; the red sub-pixel region and the blue sub-pixel region are both adjacent to the first green sub-pixel region; the second green sub-pixel region is used for emitting green light based on incident blue light, the red sub-pixel region is used for emitting red light based on incident blue light, and the blue sub-pixel region is used for transmitting incident blue light;

an area of the first surface other than an area of the annular area inclined inward toward the first substrate base plate is parallel to the first substrate base plate;

the plurality of sub-pixel regions constitute a plurality of pixel regions, and the plurality of pixel regions comprise a first pixel region; the first pixel region includes: one said red sub-pixel region, one said first green sub-pixel region, one said blue sub-pixel region, and one said second green sub-pixel region.

6. A quantum dot substrate according to claim 5, wherein the quantum dot panel satisfies any one of the following conditions:

the plurality of pixel regions further includes a second pixel region including: one said red quantum dot region, one said blue sub-pixel region, and two said second green sub-pixel regions;

and the plurality of pixel regions further include a second pixel region including: one said red quantum dot region, one said blue sub-pixel region, and two said second green sub-pixel regions; the plurality of pixel regions are arranged in an array, and the first pixel regions and the second pixel regions are alternately arranged in the row direction and the column direction of the plurality of pixel regions.

7. A quantum dot panel, comprising: a second substrate base, a plurality of light emitting cells on the second substrate base, and the quantum dot base of any one of claims 1 to 6;

the quantum dot substrate is positioned on one side of the light-emitting unit away from the second substrate, and the light-emitting unit is positioned on one side of the quantum dot layer away from the first substrate;

8. The quantum dot panel of claim 7, wherein at least one of the plurality of light emitting units is further configured to provide green light to the corresponding sub-pixel region, the at least one light emitting unit comprising: and the light-emitting unit corresponds to at least one sub-pixel region for emitting green light.

9. The quantum dot panel of claim 8, wherein for one of the light emitting units for emitting blue and green light, the light emitting unit comprises: at least one blue light emitting layer and at least one green light emitting layer laminated;

10. The quantum dot panel of claim 9, wherein the light emitting unit comprises: the two blue light emitting layers and the green light emitting layer are sequentially arranged along the direction far away from the second substrate base plate.

11. A method for manufacturing a quantum dot substrate, the method being used for manufacturing the quantum dot substrate of any one of claims 1 to 6, the method comprising:

providing a first substrate base plate;

forming a black matrix and a quantum dot layer on the first substrate;

wherein the quantum dot layer comprises: a plurality of sub-pixel regions positioned between the black matrices, the plurality of sub-pixel regions including a first green sub-pixel region for emitting green light based on incident blue light, and other sub-pixel regions emitting non-green light based on incident blue light and adjacent to the first green sub-pixel region;

12. A method of manufacturing a quantum dot panel, the method being used to manufacture the quantum dot panel of any one of claims 7 to 10, the method comprising:

manufacturing a second base substrate, a plurality of light emitting cells on the second base substrate, and the quantum dot substrate of any one of claims 1 to 6;

13. A method for controlling a quantum dot panel, wherein the method is used for controlling the quantum dot panel according to any one of claims 7 to 10; the plurality of sub-pixel regions include: the first green sub-pixel region, the red sub-pixel region, the blue sub-pixel region and the second green sub-pixel region; the red sub-pixel region and the blue sub-pixel region are both adjacent to the first green sub-pixel region; the second green sub-pixel region is used for emitting green light based on incident blue light, the red sub-pixel region is used for emitting red light based on incident blue light, and the blue sub-pixel region is used for transmitting incident blue light; an area of the first surface other than an area of the annular area inclined inward toward the first base substrate is parallel to the first base substrate; the plurality of sub-pixel regions constitute a plurality of pixel regions, and the plurality of pixel regions comprise a first pixel region; the first pixel region includes: one said red sub-pixel region, one said first green sub-pixel region, one said blue sub-pixel region, and one said second green sub-pixel region;

the method comprises the following steps:

acquiring an image to be displayed of the quantum dot panel;

when the image to be displayed comprises a red sub-pixel, a green sub-pixel and a blue sub-pixel, controlling a light-emitting unit corresponding to the red sub-pixel area, a light-emitting unit corresponding to the first green sub-pixel area and a light-emitting unit corresponding to the blue sub-pixel area to emit blue light;

14. A control device of a quantum dot panel, wherein the control device of the quantum dot panel is used for controlling the quantum dot panel of any one of claims 7 to 10; the other sub-pixel region includes: a red sub-pixel region, a blue sub-pixel region and a second green sub-pixel region; the second green sub-pixel region is used for emitting green light based on incident blue light, the red sub-pixel region is used for emitting red light based on incident blue light, and the blue sub-pixel region is used for transmitting incident blue light; an area of the first surface other than an area of the annular area inclined inward toward the first substrate base plate is parallel to the first substrate base plate; the plurality of sub-pixel regions constitute a plurality of pixel regions, and the plurality of pixel regions comprise a first pixel region; the first pixel region includes: one said red sub-pixel region, one said first green sub-pixel region, one said blue sub-pixel region, and one said second green sub-pixel region;

the control device of the quantum dot panel comprises a processor and a memory, wherein the memory stores programs, and the processor is used for executing the programs stored in the memory to realize the method of claim 13.

15. A quantum dot device, comprising: a quantum dot panel according to any one of claims 7 to 10, and a control device for a quantum dot panel according to claim 14.