Quantum dot substrate, panel and preparation method thereof, panel control method and device

Abstract

A quantum dot substrate, panel, and preparation method, panel control method, and device, belonging to the field of quantum dot technology. The quantum dot substrate includes: a first base substrate, and a black matrix and quantum dot layer located on the first base substrate; the quantum dot layer includes: a plurality of sub-pixel regions located between the black matrix, 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 that emit non-green light based on incident blue light and are adjacent to the first green sub-pixel region; in the first surface of the black matrix away from the first base substrate, at least part of the inner side of the annular region is inclined toward the first base substrate, and the annular region surrounds the first green sub-pixel region. This application solves the problem of poor display effect of quantum dot panels and improves the display effect of quantum dot panels. This application is used for quantum dot panels.

Description

Technical Field

[0001] The present application relates to the field of quantum dot technology, and in particular to a quantum dot substrate, a panel, a preparation method thereof, and a panel control method and device. Background Art

[0002] Quantum dot-organic light emitting diode (QD-OLED) panels (a type of quantum dot panel), as the latest display technology, offer a wide color gamut, wide viewing angles, ultra-high contrast, 1500 nits peak brightness, enhanced High Dynamic Range (HDR) imaging, and shorter screen response times, providing users with a superior visual experience and poised to become a major technology for television displays. Quantum dot materials, as a new type of luminescent material, offer advantages such as a concentrated emission spectrum, high color purity, and easily adjustable emission color through the size, structure, or composition of the quantum dot material. Quantum dot inks are processed through solution processing, spin coating, or inkjet printing, and then cured to form a film, forming a quantum dot color film. This is a new generation of luminescent materials for solid-state lighting and full-color mosaic displays. QD-OLED panels can display red, green, and blue using only light-emitting units (e.g., OLEDs that emit blue light). Furthermore, while retaining the self-luminous properties of OLED light sources, QD-OLED panels are more energy-efficient.

[0003] The QD-OLED panel contains red, green, and blue sub-pixels. The red sub-pixel contains a light-emitting unit and a red quantum dot block, which converts the blue light emitted by the light-emitting unit into red light; the green sub-pixel contains a light-emitting unit and a green quantum dot block, which converts the blue light emitted by the light-emitting unit into green light; and the blue sub-pixel contains a light-emitting unit and a transmission block, which transmits the blue light emitted by the light-emitting unit. The quantum dots in adjacent sub-pixels in the QD-OLED panel are separated by a black matrix.

[0004] At present, because the light emitted by the light-emitting unit corresponding to the green sub-pixel will leak to the blue sub-pixel, less blue light is transmitted to the green quantum dot block, resulting in less green light obtained by the green quantum dot block converting blue light, resulting in poor display effect of the QD-OLED panel. Summary of the Invention

[0005] This application provides a quantum dot substrate, panel, and preparation method thereof, as well as a panel control method and device, which can solve the problem of poor display effect of quantum dot panels. The technical solution is as follows:

[0006] In a first aspect, a quantum dot substrate is provided, comprising: a first base substrate, and a black matrix and a quantum dot layer located on the first base substrate;

[0007] The quantum dot layer includes: a plurality of sub-pixel regions located between the black matrices, the plurality of sub-pixel regions including a first green sub-pixel region configured to emit green light based on incident blue light, and other sub-pixel regions that emit non-green light based on the incident blue light and are adjacent to the first green sub-pixel region;

[0008] On a first surface of the black matrix away from the first base substrate, at least a portion of an inner side of an annular region is inclined toward the first base substrate, and the annular region surrounds the first green sub-pixel region.

[0009] Optionally, the area where at least part of the inner side of the annular area is located is: a plane area, or a curved area having at least one of a concave and a convex structure.

[0010] Optionally, at least a portion of the inner side is connected to the second surface of the black matrix close to the first base substrate.

[0011] Optionally, the first surface, except for the region in the annular region whose inner side is inclined toward the first base substrate, is parallel to the first base substrate.

[0012] Optionally, the quantum dot substrate further includes: a color filter layer located between the black matrices, and the first base substrate, the color filter layer and the quantum dot layer are arranged in sequence.

[0013] Optionally, the quantum dot substrate further includes: a reflective layer located on the third surface, the reflective layer being configured to reflect light incident from a side of the quantum dot layer away from the first base substrate to a sub-pixel region in the quantum dot layer adjacent to the third surface.

[0014] Optionally, for a sub-pixel region of at least one of the sub-pixel regions:

[0015] A side of the third surface away from the first substrate is inclined toward the sub-pixel region, and an angle between the third surface and the second surface is in the range of [30 degrees, 90 degrees);

[0016] The third surface is perpendicular to the second surface;

[0017] Alternatively, a side of the third surface away from the first substrate is inclined toward the outside of the sub-pixel region, and an angle between the third surface and the second surface is in the range of (0, 30 degrees).

[0018] Optionally, an area of ​​the first surface, except for an area in the annular area where the inner side thereof is inclined toward the first base substrate, is parallel to the first base substrate;

[0019] Optionally, the multiple sub-pixel areas constitute multiple pixel areas, and the multiple pixel areas include a first pixel area; the first pixel area includes: one red sub-pixel area, one first green sub-pixel area, one blue sub-pixel area and one second green sub-pixel area.

[0020] Optionally, the multiple pixel regions in the quantum dot substrate further include a second pixel region, and the second pixel region includes: one red quantum dot region, one blue sub-pixel region, and two second green sub-pixel regions;

[0021] Optionally, the multiple pixel areas also include a second pixel area, the second pixel area includes: one red quantum dot area, one blue sub-pixel area and two second green sub-pixel areas; the multiple pixel areas are arranged in an array, and in the row direction and column direction of the multiple pixel areas, the first pixel areas and the second pixel areas are arranged alternately.

[0022] In a second aspect, a quantum dot panel is provided, comprising: a second base substrate, a plurality of light-emitting units located on the second base substrate, and any one of the quantum dot substrates provided in the first aspect; the quantum dot substrate is located on a side of the light-emitting units away from the second base substrate, and the light-emitting units are located on a side of the quantum dot layer away from the first base substrate;

[0023] The plurality of light-emitting units correspond to the plurality of sub-pixel regions on a one-to-one basis, and the light-emitting units are configured to provide blue light to the corresponding sub-pixel regions.

[0024] 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: a light-emitting unit corresponding to at least one sub-pixel region configured to emit green light.

[0025] Optionally, for one of the light-emitting units for emitting blue light and green light, the light-emitting unit comprises: at least one blue light-emitting layer and at least one green light-emitting layer stacked;

[0026] The blue light emitting layer is used to provide blue light to the sub-pixel area corresponding to the light emitting unit, and the green light emitting layer is used to provide green light to the sub-pixel area corresponding to the light emitting unit.

[0027] Optionally, the light-emitting unit includes: two blue light-emitting layers and one green light-emitting layer arranged in sequence in a direction away from the second base substrate.

[0028] In a third aspect, an embodiment of the present application further provides a method for manufacturing a quantum dot substrate, the method being used to manufacture any one of the quantum dot substrates provided in the first aspect, the method comprising:

[0029] providing a first substrate;

[0030] forming a black matrix and a quantum dot layer on the first substrate;

[0031] The quantum dot layer includes: a plurality of sub-pixel regions located 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 that emit non-green light based on the incident blue light and are adjacent to the first green sub-pixel region;

[0032] On a first surface of the black matrix away from the first base substrate, at least a portion of an inner side of an annular region is inclined toward the first base substrate, and the annular region surrounds the first green sub-pixel region.

[0033] In a fourth aspect, an embodiment of the present application further provides a method for manufacturing a quantum dot panel, the method being used to manufacture any one of the quantum dot panels provided in the second aspect, the method comprising:

[0034] Manufacturing a second base substrate, a plurality of light-emitting units located on the second base substrate, and any of the above-mentioned quantum dot substrates;

[0035] The quantum dot substrate is located on a side of the light emitting unit away from the second base substrate, and the light emitting unit is located on a side of the quantum dot layer away from the first base substrate;

[0036] The plurality of light-emitting units correspond to the plurality of sub-pixel regions on a one-to-one basis, and the light-emitting units are configured to provide blue light to the corresponding sub-pixel regions.

[0037] In a fifth aspect, an embodiment of the present application further provides a method for controlling a quantum dot panel, the method being used to control any one of the quantum dot panels provided in the second aspect, the method comprising:

[0038] Acquiring an image to be displayed on the quantum dot panel;

[0039] 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;

[0040] When the image to be displayed includes the green sub-pixel but does not include the red sub-pixel and the blue sub-pixel, the light-emitting unit corresponding to the second green sub-pixel region is controlled to emit blue light.

[0041] In a sixth aspect, an embodiment of the present application further provides a control device for a quantum dot panel, wherein the control device for a quantum dot panel is used to control any one of the quantum dot panels provided in the second aspect above;

[0042] The control device of the quantum dot panel includes a processor and a memory, wherein a program is stored in the memory, and the processor is used to execute the program stored in the memory to implement any one of the methods provided in the fifth aspect.

[0043] In a seventh aspect, an embodiment of the present application further provides a quantum dot panel device, comprising: any one of the quantum dot panels provided in the second aspect above, and a control device for any one of the quantum dot panels provided in the sixth aspect above.

[0044] The beneficial effects of the technical solution provided by this application include at least:

[0045] In the quantum dot substrate provided in this application, at least part of the inner side of the annular region is tilted toward the first base substrate. When the light-emitting units (such as OLEDs) corresponding to the first green sub-pixel region and its 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 of the quantum dot layer can enter the first green sub-pixel region of the quantum dot layer. This increases the amount of blue light transmitted to the first green sub-pixel region of the quantum dot layer, increases the amount of green light obtained by converting blue light in the first green sub-pixel region of the quantum dot layer, and enhances the display effect of the quantum dot panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a schematic diagram of the structure of a quantum dot panel provided by related technology;

[0047] Figure 2 This is a schematic structural diagram of a quantum dot substrate provided in an embodiment of the present application;

[0048] Figure 3 yes Figure 1 A top view of the quantum dot substrate is shown;

[0049] Figure 4 This is a schematic structural diagram of another quantum dot substrate provided in an embodiment of the present application;

[0050] Figure 5 This is a schematic structural diagram of another quantum dot substrate provided in an embodiment of the present application;

[0051] Figure 6 This is a schematic structural diagram of another quantum dot substrate provided in an embodiment of the present application;

[0052] Figure 7 This is a schematic structural diagram of another quantum dot substrate provided in an embodiment of the present application;

[0053] Figure 8 This is a schematic structural diagram of another quantum dot substrate provided in an embodiment of the present application;

[0054] Figure 9 This is a schematic structural diagram of another quantum dot substrate provided in an embodiment of the present application;

[0055] Figure 10 This is a schematic structural diagram of another quantum dot substrate provided in an embodiment of the present application;

[0056] Figure 11 This is a schematic structural diagram of another quantum dot substrate provided in an embodiment of the present application;

[0057] Figure 12 This is a schematic structural diagram of another quantum dot substrate provided in an embodiment of the present application;

[0058] Figure 13 This is a schematic structural diagram of another quantum dot substrate provided in an embodiment of the present application;

[0059] Figure 14 This is a schematic structural diagram of another quantum dot substrate provided in an embodiment of the present application;

[0060] Figure 15 This is a schematic structural diagram of another quantum dot substrate provided in an embodiment of the present application;

[0061] Figure 16 This is a schematic diagram of the arrangement of sub-pixel regions in a pixel region provided by an embodiment of the present application;

[0062] Figure 17 This is a schematic diagram of the arrangement of sub-pixel regions in another pixel region provided by an embodiment of the present application;

[0063] Figure 18 This is a schematic diagram of the arrangement of sub-pixel regions in another pixel region provided by an embodiment of the present application;

[0064] Figure 19 This is a schematic diagram of the arrangement of pixel areas provided in an embodiment of the present application;

[0065] Figure 20 This is a schematic structural diagram of a quantum dot panel provided in an embodiment of the present application;

[0066] Figure 21This is a schematic structural diagram of another quantum dot panel provided in an embodiment of the present application;

[0067] Figure 22 This is a schematic structural diagram of a light-emitting unit provided in an embodiment of the present application;

[0068] Figure 23 This is a schematic diagram of the relationship between the wavelength and intensity of light emitted by a light-emitting unit provided in an embodiment of the present application;

[0069] Figure 24 This is a schematic diagram of the relationship between the wavelength and intensity of light emitted by another light-emitting unit provided in an embodiment of the present application;

[0070] Figure 25 This is a schematic diagram of the relationship between the wavelength and intensity of light emitted by another light-emitting unit provided in an embodiment of the present application;

[0071] Figure 26 This is a flow chart of a method for manufacturing a quantum dot substrate provided in an embodiment of the present application;

[0072] Figure 27 This is a schematic diagram of a manufacturing process of a quantum dot substrate provided in an embodiment of the present application;

[0073] Figure 28 This is a schematic diagram of the manufacturing process of another quantum dot substrate provided in an embodiment of the present application;

[0074] Figure 29 This is a flow chart of a method for manufacturing a quantum dot panel provided in an embodiment of the present application;

[0075] Figure 30 This is a flow chart of a method for controlling a quantum dot panel provided in an embodiment of the present application;

[0076] Figure 31 This is a block diagram of a control device for a quantum dot panel provided in an embodiment of the present application;

[0077] Figure 32 This is a block diagram of a quantum dot device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0078] In order to make the principles, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0079] Figure 1 A schematic diagram of the structure of a QD-OLED panel provided for related technologies, such as Figure 1 As shown, the QD-OLED panel 10 includes: a quantum dot substrate and a light-emitting substrate that are arranged opposite to each other.

[0080] The quantum dot substrate includes: a first base substrate 1011, and a black matrix 1012 and a quantum dot layer 1013 located on the first base substrate 1011. The light-emitting substrate includes: a second base substrate 1021, and a plurality of light-emitting units 1022 and a pixel defining layer 1023 located on the second base substrate 1021, with the light-emitting units located between the pixel defining layers 1023. The quantum dot layer 1013 and the first base substrate 1011 are arranged in sequence in a direction away from the light-emitting substrate, and the light-emitting units 1022 and the second base substrate 1021 are arranged in sequence in a direction away from the quantum dot substrate. The light-emitting unit 1022 can be an OLED or a light-emitting diode (LED).

[0081] The QD-OLED panel 10 includes a plurality of sub-pixels, such as Figure 1 As shown, the multiple sub-pixels include: a red sub-pixel XR, a green sub-pixel XG, and a blue sub-pixel XB. In each film layer of the QD-OLED panel, the portion located within a sub-pixel is called a sub-pixel region in the film layer.

[0082] The red sub-pixel XR in the QD-OLED panel 10 includes: a light-emitting unit 1022 and a portion of the quantum dot layer 1013 located within the red sub-pixel XR (called a red quantum dot block), which can convert the blue light emitted by the light-emitting unit 1022 into red light.

[0083] The green sub-pixel XG in the QD-OLED panel includes: a light-emitting unit 1022 and a portion of the quantum dot layer 1013 located within the green sub-pixel XG (called a green quantum dot block), which can convert the blue light emitted by the light-emitting unit 1022 into green light.

[0084] The blue sub-pixel XB in the QD-OLED panel includes: a light-emitting unit 1022 and a portion of the quantum dot layer 1013 located within the blue sub-pixel XB (referred to as a transparent block), which is capable of transmitting the blue light emitted by the light-emitting unit 1022 .

[0085] Furthermore, the black matrix 1012 may be in a grid shape, and the pixel defining layer 1023 may also be in a grid shape. The plurality of sub-pixels may be located between the black matrix 1012 and the pixel defining layer 1023. Furthermore, the surface B1 of the black matrix 1012 close to the first base substrate 1011 and the surface B2 away from the first base substrate 1011 are both planes.

[0086] At this stage, due to the presence of a certain gap between the quantum dot substrate and the light-emitting substrate, the blue light emitted by the light-emitting unit 1022 in the green sub-pixel XG will leak into the adjacent sub-pixel. As a result, less blue light is transmitted to the green quantum dot block, which makes the green quantum dot block convert less green light into blue light, resulting 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 picture displayed by the QD-OLED panel will be blue. In addition, the green quantum dot block has a low conversion efficiency for blue light, which further makes the green quantum dot block convert less green light into blue light, which further leads to poor display effect of the QD-OLED panel.

[0087] The embodiments of the present application provide 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 its adjacent sub-pixels that emit non-green light emit light at the same time, the blue light emitted by the light-emitting unit in the other sub-pixel area can leak more into the green sub-pixel. In this way, more blue light is transmitted to the part of the quantum dot layer located in the green sub-pixel, so that the green quantum dot block converts the blue light to obtain more green light, thereby improving the display effect of the QD-OLED panel. In addition, even if the part of the quantum dot layer located in the green sub-pixel has a low conversion efficiency for blue light, since more blue light is transmitted to the part of the quantum dot layer located in the green sub-pixel, it can still be ensured that the green quantum dot block converts the blue light to obtain more green light, thereby improving the display effect of the QD-OLED panel.

[0088] For example, Figure 2 This is a structural schematic diagram of a quantum dot substrate 00 provided in an embodiment of the present application. The quantum dot substrate 00 includes: a first base substrate 001, and a black matrix 002 and a quantum dot layer 003 located on the first base substrate 001.

[0089] The quantum dot layer 003 includes: a plurality of sub-pixel regions (such as Figure 2 0031A and 0031B in the quantum dot layer 003). The multiple sub-pixel regions of the quantum dot layer 003 include: a first green sub-pixel region 0031A for emitting green light based on the incident blue light, and other sub-pixel regions 0031B for emitting non-green light based on the incident blue light. It is understandable that the multiple sub-pixel regions of the quantum dot layer 003 may include more than Figure 2 The first green sub-pixel region 0031A and the other sub-pixel region 0031B are shown. Figure 2 In addition, the non-green light emitted by the other sub-pixel region of the quantum dot layer 003 may be red light or blue light, etc., which is not limited in this embodiment of the present application.

[0090] Figure 3 for Figure 2 The top view of the quantum dot substrate is shown. Figure 2 Shown Figure 3 The structure of the middle section XX. Please combine Figure 2 and Figure 3 In the first surface 0021 of the black matrix 002 away from the first substrate 001, at least part of the inner side of the annular region 00211 is inclined toward the first substrate 001, and the annular region 00211 surrounds the first green sub-pixel region 0031A of the quantum dot layer 003. For example, Figure 3 In the example, the entire inner side of the annular region 00211 is tilted toward the first base substrate 001. In this case, the portion of the black matrix 002 where the annular region 00211 is located is funnel-shaped. It is understood that the inner side of a portion of the annular region 00211 may be tilted toward the first base substrate 001, while the inner side of another portion may not be tilted toward the first base substrate 001. For example, the inner side of the other portion of the annular region 00211 may be parallel to the first base substrate 001.

[0091] In summary, in the quantum dot substrate provided by the present application, at least part of the inner side of the annular region is inclined toward the first base substrate. When the light-emitting units (such as OLEDs) corresponding to the first green sub-pixel region and its other adjacent sub-pixel regions in the quantum dot layer emit light at the same time, the blue light emitted by the light-emitting units corresponding to the other sub-pixel regions of the quantum dot layer can enter the first green sub-pixel region of the quantum dot layer. In this way, the blue light transmitted to the first green sub-pixel region of the quantum dot layer is increased, and the green light obtained by converting the blue light in the first green sub-pixel region of the quantum dot layer is increased, thereby enhancing the display effect of the quantum dot panel where the quantum dot substrate is located.

[0092] Furthermore, the quantum dot substrate 00 may satisfy at least one of the following conditions 1, 2, 3 and 4.

[0093] Condition 1: At least a portion of the inner side of the annular region is a flat surface region, or a curved surface region having at least one of a concave and a convex structure.

[0094] For example, Figures 4 to 7 Schematic diagrams of several partial structures of the quantum dot substrate 00 provided in the embodiment of the present application. It should be noted that, Figures 4 to 7 Only the first green sub-pixel region 0031A in the quantum dot layer 003 and the annular region 00211 in the first surface 0021 of the black matrix 002 are shown.

[0095] like Figure 2 or Figure 4As shown, at least part of the inner side of the annular region 00211 is a plane region; or Figure 5 As shown, at least part of the inner side of the annular region 00211 is a concave curved surface region; or, as shown Figure 6 As shown, at least part of the inner side of the annular region 00211 is a convex curved surface region; or, as shown Figure 7 As shown, at least a portion of the inner side of the annular area 00211 is a curved surface area with depressions and protrusions.

[0096] It can be understood that when the area where at least part of the inner side of the annular area 00211 is located is not a planar area, the area where at least part of the inner side of the annular area 00211 is located may also not be a curved surface area. For example, the area where at least part of the inner side of the annular area 00211 is located is a serrated surface area, etc.

[0097] Condition 2: Please refer to the above Figure 2 At least part of the inner side of the annular region 00211 is connected to the second surface 0022 of the black matrix 002 close to the first base substrate 001. Figure 2 In the cross section shown, the portion of the black matrix 002 surrounding the first green sub-pixel region 0031A of the quantum dot layer 003 is in the form of two triangles.

[0098] Optionally, at least part of the inner side of the annular region 00211 may not be connected to the second surface 0022. Figure 4 As shown, at least part of the inner side of the annular region 00211 is connected to the second surface 0022 via a third surface 0023 . The third surface 0023 is a surface of the black matrix 002 close to the first green sub-pixel region 0031A in the quantum dot layer 003 .

[0099] Condition 3: Please combine the above Figure 2 and Figure 3 , the region 00212 of the first surface 0021, excluding the region of the annular region 00211 whose inner side is inclined toward the first base substrate 001, is parallel to the first base substrate 001. For example, when all inner sides of the annular region 00211 of the first surface 0021 are inclined toward the first base substrate 011, the regions 00212 of the first surface 0021, excluding the annular region 00211, are parallel to the first base substrate 0011.

[0100] Condition 4: The quantum dot substrate further includes: a color filter layer located between the black matrix, the first base substrate, the color filter layer and the quantum dot layer are arranged in sequence. For example, Figure 8 As shown, in Figure 2Based on the quantum dot substrate 00 shown, the quantum dot substrate 00 further includes a color filter layer 004 .

[0101] When the quantum dot substrate 00 includes the color filter layer 004, the sub-pixel region (eg Figure 8 0031A and 0031B in the color filter layer 003) and the sub-pixel area in the color filter layer 003 (such as Figure 8 The sub-pixel areas in the color filter layer 004 are capable of filtering the light emitted by the corresponding sub-pixel areas in the quantum dot layer 003, so as to improve the purity of the light emitted by the sub-pixel areas in the quantum dot panel where the quantum dot substrate 00 is located. For example, for the first green sub-pixel area 0031A in the quantum dot layer 003, the sub-pixel area 0041A corresponding to the first sub-pixel area 0031A of the quantum dot layer 003 in the color filter layer 004 can: pass the green light emitted by the first green sub-pixel area 0031A of the quantum dot layer 003, and filter out light of other colors (such as blue light) except green light emitted by the first green sub-pixel area 0031A of the quantum dot layer 003.

[0102] Furthermore, Figure 9 Schematic diagram of another quantum dot substrate 00 provided in the embodiment of the present application. Figure 9 As shown, in Figure 2 On the basis of the quantum dot layer 003, a sub-pixel region (such as Figure 9 The first surface 0021 is connected to the third surface 0023 of the sub-pixel area of ​​the black matrix 002 close to the quantum dot layer 003, and the third surface 0023 is connected to the second surface 0022 of the black matrix 002 close to the first base substrate 001.

[0103] Figure 9 In the example, the at least one sub-pixel region of the quantum dot layer 003 includes other sub-pixel regions 0031B of the quantum dot layer 003 , but does not include the first green sub-pixel region 0031A of the quantum dot layer 003 . Figure 9 Only one other sub-pixel region 0031B is shown, but it is understood that the at least one sub-pixel region may also include multiple other sub-pixel regions 0031B. The multiple other sub-pixel regions 0031B may include: a sub-pixel region for emitting red light based on received blue light, and a sub-pixel region for transmitting received blue light.

[0104] It is understood that the at least one sub-pixel region of the quantum dot layer 003 may also include sub-pixel regions other than the other sub-pixel regions 0031B of the quantum dot layer 003. For example, the at least one sub-pixel region of the quantum dot layer 003 may also include the first green sub-pixel region 0031A of the quantum dot layer 003, which is not limited in this embodiment of the present application.

[0105] When the plurality of sub-pixel regions of the quantum dot layer 003 include the at least one sub-pixel region, the quantum dot substrate 00 further includes: a reflective layer 005 located on the third surface 0023. The reflective layer 005 is used to reflect light incident from the side of the quantum dot layer 003 away from the first base substrate 001 to the sub-pixel region of the quantum dot layer 003 adjacent to the third surface 0023. For example, Figure 9 The reflective layer 005 can reflect light incident from the side of the quantum dot layer 003 away from the first base substrate 001 to the other sub-pixel region 0031B of the quantum dot layer 003 .

[0106] When a reflective layer 005 is provided on the third surface 0024 of the black matrix 002, the reflective layer 005 can prevent light incident from the side of the quantum dot layer 003 away from the first base substrate 001 from being absorbed by the black matrix 002, and can increase the light transmitted to the sub-pixel region of the quantum dot layer 003 adjacent to the third surface 0023. This can further increase the amount of light emitted from the sub-pixel region of the quantum dot layer 003, further enhancing the display effect of the quantum dot panel.

[0107] Optionally, the reflective layer is made of metal (such as aluminum Al, gold Au, silver Ag or alloys); the reflective layer can be prepared by magnetron sputtering, evaporation or atomic layer deposition (ALD) and other processes.

[0108] Furthermore, for one sub-pixel region in the 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:

[0109] Condition 4: If Figure 10 As shown, the side of the third surface 0023 away from the first base substrate 001 is inclined toward the sub-pixel region, and the angle a between the third surface 0023 and the second surface 0022 is in the range of [30 degrees, 90 degrees]. In this case, Figure 10 In the cross section shown, the portion of the black matrix 002 surrounding the sub-pixel region in the quantum dot layer 003 is in the shape of an inverted trapezoid, and correspondingly, the sub-pixel region of the quantum dot layer 003 is in the shape of a right trapezoid. Figure 10Taking the angle a of 60 degrees as an example, it can be understood that the angle a can also be other angles in [30 degrees, 90 degrees), such as 30 degrees, 40 degrees or 75 degrees.

[0110] Condition 5: If Figure 11 As shown, the third surface 0023 is perpendicular to the second surface 0022. In this case, Figure 11 In the cross section shown, 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.

[0111] Condition 6: If Figure 12 As shown, the side of the third surface 0023 away from the first substrate 001 is inclined outside the sub-pixel area, and the angle a between the third surface 0023 and the second surface 0022 is in the range of (0 degrees, 30 degrees]; in this case, Figure 12 In the cross section shown, the portion of the black matrix 002 surrounding the sub-pixel region of the quantum dot layer 003 is in the shape of a regular trapezoid, and correspondingly, the sub-pixel region of the quantum dot layer 003 is in the shape of an inverted trapezoid. Figure 12 In the example, the angle a is 30 degrees. It can be understood that the angle a can also be other angles in (0 degrees, 30 degrees), such as 10 degrees, 20 degrees, etc.

[0112] Alternatively, as Figure 13 As shown, in quantum dot substrate 00, the multiple sub-pixel regions of 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. Both red sub-pixel region 0031BC and blue sub-pixel region 0031BD are adjacent to first green sub-pixel region 0031A. Second green sub-pixel region 0031E is configured to emit green light based on incident blue light, red sub-pixel region 0031BC is configured to emit red light based on incident blue light, and blue sub-pixel region 0031BD is configured to transmit incident blue light. Other sub-pixel regions 0031B include red sub-pixel region 0031BC and blue sub-pixel region 0031BD.

[0113] like Figure 13 As shown, all regions of the first surface 0021 except for the region in the annular region surrounding the first green sub-pixel region 0031A and tilted toward the first base substrate 001 are parallel to the first base substrate 001 .

[0114] Optionally, the multiple sub-pixel regions of the quantum dot layer 003 constitute multiple pixel regions, and the multiple pixel regions include a first pixel region A. For example, the multiple pixel regions are all first pixel regions A, or a portion of the pixel regions are first pixel regions A. The first pixel region A may include: 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, Figure 13 As shown, the multiple sub-pixel regions in the first pixel region A of the quantum dot layer 003 are arranged in sequence to form Figure 13 Furthermore, a plurality of sub-pixel regions in the first pixel region A are isolated by a black matrix 002 . Figure 13 The black matrix 002 adjacent to the first green sub-pixel region 0031A can be as follows: Figure 2 As shown in the figure, for example, optionally, the black matrix 002 adjacent to the first green sub-pixel region 0031A can also be as follows Figure 4 、 Figure 5 、 Figure 6 or Figure 7 shown.

[0115] It should be noted that the first pixel area A is not limited to Figure 13 The figure includes: 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 can also be as follows Figure 14 The figure includes: a red sub-pixel region 0031BC, a first green sub-pixel region 0031A and a blue sub-pixel region 0031BD. Figure 14 The black matrix 002 adjacent to the first green sub-pixel region 0031A can be as follows: Figure 2 As shown in the figure, for example, optionally, the black matrix 002 adjacent to the first green sub-pixel region 0031A can also be as follows Figure 4 、 Figure 5 、 Figure 6 or Figure 7 shown.

[0116] like Figure 15 As shown, the plurality of pixel regions may include, in addition to the first pixel region A, a second pixel region B. For example, in the first pixel region A, Figure 13 As shown, the second pixel region B includes: a red sub-pixel region 0031BC, a blue sub-pixel region 0031BD and two second green sub-pixel regions 0031E; the multiple sub-pixel regions in the second pixel region B are arranged in sequence, and the multiple sub-pixel regions are isolated by a black matrix 002.

[0117] When the quantum dot panel where the quantum dot substrate is located displays a red picture (including only red sub-pixels), the light-emitting unit corresponding to the red sub-pixel area in the quantum dot layer emits blue light, and the light-emitting units corresponding to the green sub-pixel area and the blue sub-pixel area do not emit light. When the quantum dot panel where the quantum dot substrate is located displays a blue picture (including only blue sub-pixels), the light-emitting unit corresponding to the blue sub-pixel area in the quantum dot layer emits blue light, and the light-emitting units corresponding to the red sub-pixel area and the green sub-pixel area do not emit light. In the embodiment of the present application, the shape of the black matrix 002 adjacent to the two second green sub-pixel areas 0031E in the second pixel area B does not change. Therefore, when the quantum dot panel where the quantum dot substrate is located displays a red picture or a blue picture, the light emitted by the light-emitting unit corresponding to the red sub-pixel area 0031BC or the blue sub-pixel area 0031BD in the second pixel area B will not leak into its adjacent second green sub-pixel area 0031E in large quantities. In this way, the quantum dot panel can display a red picture or a blue picture normally.

[0118] In addition, when the quantum dot panel on which the quantum dot substrate is located displays a green image (including only green sub-pixels), the light-emitting units corresponding to the first green sub-pixel region and / or the second green sub-pixel 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 the quantum dot panel on which the quantum dot substrate is located displays an image including red sub-pixels, green sub-pixels, and blue 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 also emit blue light.

[0119] It is understandable that in the first pixel area A, Figure 14 As shown, the second pixel region may include: a red sub-pixel region, a blue sub-pixel region, and a second green sub-pixel region.

[0120] Furthermore, the arrangement of each sub-pixel region in the pixel region of the quantum dot substrate 00 is varied, and the present application embodiment does not limit this. For example, two optional arrangements of the sub-pixel region can be as follows: Figure 16 and Figure 17 shown.

[0121] An optional arrangement of sub-pixel regions can be as follows Figure 16 As shown, Figure 16It is a top view of a pixel area in the quantum dot substrate 00. The pixel area can be the above-mentioned first pixel area A, or it can be the above-mentioned second pixel area B. When the pixel area is the above-mentioned first pixel area A, the first pixel area A includes: the second green sub-pixel area 0031E, the blue sub-pixel area 0031BD, the first green sub-pixel area 0031A and the red sub-pixel area 0031BC arranged in sequence. When the pixel area is the above-mentioned second pixel area B, the second pixel area B includes: the second green sub-pixel area 0031E, the blue sub-pixel area 0031BD, the second green sub-pixel area 0031E and the red sub-pixel area 0031BC arranged in sequence. Figure 16 In the example, the first green sub-pixel region 0031A and the second green sub-pixel region 0031E have the same area, the red sub-pixel region 0031BC and the blue sub-pixel region 0031BD have the same area, and the area of ​​the first green sub-pixel region 0031A is smaller than the area of ​​the blue sub-pixel region 0031BD. For example, the areas of the red sub-pixel region 0031BC and the blue sub-pixel region 0031BD are both 68.07% of the reference area, while the areas of the first green sub-pixel region 0031A and the second green sub-pixel region 0031E are both 25.93% of the reference area.

[0122] Another optional arrangement of sub-pixel regions can be as follows Figure 17 As shown, in a pixel region, blue sub-pixel region 0031BD and red sub-pixel region 0031BC are located between two green sub-pixel regions. Furthermore, the arrangement direction of blue sub-pixel region 0031BD and 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 the first green sub-pixel region 0031A and the second green sub-pixel region 0031E. When the pixel region is the second pixel region B, both green sub-pixel regions may be the second green sub-pixel region 0031E. In this pixel region, the two green sub-pixel regions and the red sub-pixel region have the same area, both larger than the blue sub-pixel region.

[0123] In addition, the shapes of the sub-pixel regions in the pixel region of the quantum dot substrate 00 are various, such as rectangle, circle, ellipse, pentagon, hexagon (such as regular hexagon) or other polygons, etc., which are not limited in the embodiment of the present application. For example, the shape of the sub-pixel region can be as follows: Figure 16 、 Figure 17 or Figure 18 shown.

[0124] Optionally, in the case where the plurality of pixel regions include the first pixel region A and the second pixel region B, as Figure 19As shown, the plurality of pixel regions are arranged in an array, and in the row direction and the column direction of the plurality of pixel regions, the first pixel regions A and the second pixel regions B are arranged alternately.

[0125] It is understandable that when the plurality of pixel regions include 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 also be the same as Figure 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 in the row direction of the pixel regions, the first pixel regions A and the second pixel regions B are alternately arranged.

[0126] In summary, in the quantum dot substrate provided by the present application, at least part of the inner side of the annular region is inclined toward the first base substrate. When the light-emitting units (such as OLEDs) corresponding to the first green sub-pixel region and its other adjacent sub-pixel regions in the quantum dot layer emit light at the same time, the blue light emitted by the light-emitting units corresponding to the other sub-pixel regions of the quantum dot layer can enter the first green sub-pixel region of the quantum dot layer. In this way, the blue light transmitted to the first green sub-pixel region of the quantum dot layer is increased, and the green light obtained by converting the blue light in the first green sub-pixel region of the quantum dot layer is increased, thereby enhancing the display effect of the quantum dot panel where the quantum dot substrate is located.

[0127] Based on the above-mentioned quantum dot substrate provided in the embodiment of the present application, the embodiment of the present application also provides a quantum dot panel including the quantum dot substrate.

[0128] For example, Figure 20 A schematic diagram of the structure of a quantum dot panel 01 provided in an embodiment of the present application is shown in FIG. Figure 20 As shown, the quantum dot panel 01 includes: a second base substrate 006, a plurality of light emitting units 007 located on the second base substrate 006, and any of the above-mentioned quantum dot substrates. Figure 20 China-Israel Figure 13 The quantum dot substrate shown in FIG. 1 is taken as an example. Optionally, the quantum dot substrate may also be other quantum dot substrates provided in the embodiments of the present application, such as Figure 2 、 Figure 14 or Figure 15 The quantum dot panel 01 may further include a pixel defining layer 008 located on the second base substrate 006 , and the light emitting unit 007 may be located between the pixel defining layers 008 .

[0129] like Figure 20As shown, the quantum dot substrate is located on the side of the light-emitting unit 007 away from the second base substrate 006, and the light-emitting unit 007 is located on the side of the quantum dot layer 003 away from the first base substrate 01; multiple light-emitting units 007 correspond one-to-one to multiple sub-pixel areas of the quantum dot layer 003 in the quantum dot substrate, and the light-emitting unit 007 can be used to provide blue light to its corresponding sub-pixel area in the quantum dot layer 003.

[0130] The quantum dot panel 01 includes multiple sub-pixels, each of which may include a light-emitting unit 007 and a sub-pixel region corresponding to the light-emitting unit in the quantum dot layer 003. The light-emitting unit 007 can emit blue light to the corresponding sub-pixel region in the quantum dot layer 003, so that the sub-pixel region emits red light, green light, or blue light.

[0131] In summary, in the quantum dot panel provided by the present application, at least part of the inner side of the annular region of the quantum dot substrate is tilted toward the first base substrate. When the light-emitting units (such as OLEDs) corresponding to the first green sub-pixel region and its other adjacent sub-pixel regions in the quantum dot layer emit light at the same time, the blue light emitted by the light-emitting units corresponding to the other sub-pixel regions of the quantum dot layer can enter the first green sub-pixel region of the quantum dot layer. In this way, the blue light transmitted to the first green sub-pixel region of the quantum dot layer is increased, and the green light obtained by converting the blue light in the first green sub-pixel region of the quantum dot layer is increased, thereby enhancing the display effect of the quantum dot panel where the quantum dot substrate is located.

[0132] Optionally, at least one of the multiple light-emitting units 007 is also used to provide green light to the corresponding sub-pixel area in the quantum dot layer 003, and the at least one light-emitting unit 007 includes at least: a light-emitting unit 007 corresponding to at least one sub-pixel area in the quantum dot layer 003 for emitting green light.

[0133] For example, it is assumed that the at least one light-emitting unit 007 includes: a light-emitting unit 007 corresponding to a first green sub-pixel region for emitting green light in the quantum dot layer 003 , and a light-emitting unit 007 corresponding to a second green sub-pixel region for emitting green light. Figure 21 This is a schematic diagram of the structure of another quantum dot panel 01 provided in an embodiment of the present application. Figure 21As shown, the multiple light-emitting units in the quantum dot panel 01 include light-emitting unit 007A, light-emitting unit 007B, light-emitting unit 007C, and light-emitting unit 007D. Among them, light-emitting unit 007A corresponds to the second green sub-pixel region 0031E in the quantum dot layer 003, light-emitting unit 007B corresponds to the blue sub-pixel region 0031BD in the quantum dot layer 003, light-emitting unit 007C corresponds to the first green sub-pixel region 0031A in the quantum dot layer 003, and light-emitting unit 007D corresponds to the red sub-pixel region 0031BC in the quantum dot layer 003. Light-emitting units 007A, 007B, 007C, and 007D are all used to emit blue light to the corresponding sub-pixel regions in the quantum dot layer 003, and light-emitting units 007A and 007C are also used to emit green light to the corresponding sub-pixel regions in the quantum dot layer 003.

[0134] It is understood that the at least one light-emitting unit 007 may include: a light-emitting unit 007 corresponding to a portion of the sub-pixel regions in the quantum dot layer 003 for emitting green light, or a light-emitting unit 007 corresponding to all of the sub-pixel regions in the quantum dot layer 003 for emitting green light. The at least one light-emitting unit 007 may also include: a light-emitting unit 007 corresponding to a sub-pixel region in the quantum dot layer 003 for emitting red light, and / or a light-emitting unit 007 corresponding to a sub-pixel region in the quantum dot layer 003 for emitting blue light.

[0135] As can be seen from the above, the multiple light-emitting units in the quantum dot panel include at least one light-emitting unit for emitting blue and green light, and the at least one light-emitting unit includes a light-emitting unit corresponding to at least one sub-pixel region in the quantum dot layer for emitting green light. This increases the amount of green light entering the at least one sub-pixel region in the quantum dot layer for emitting green light, and increases the amount of green light emitted by the at least one sub-pixel region in the quantum dot layer for emitting green light, thereby enhancing the display effect of the quantum dot panel.

[0136] Furthermore, for a light-emitting unit for emitting blue light and green light, there are various implementation methods for the light-emitting unit, and several of the implementation methods will be explained below as examples.

[0137] For example, Figure 22 This is a schematic diagram of the structure of a light emitting unit for emitting blue light and green light provided in an embodiment of the present application. Figure 22 As shown, the light emitting unit 007 includes: at least one stacked blue light emitting layer 0071 and at least one green light emitting layer 0072. The blue light emitting layer 0071 is used to provide blue light to the sub-pixel area corresponding to the light emitting unit 007, and the green light emitting layer 0072 is used to provide green light to the sub-pixel area corresponding to the light emitting unit 007.

[0138] Figure 22 For example, 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 stacked in sequence in a direction away from the second base substrate 006 .

[0139] It is understood that the number of blue light-emitting layers 0071 in the at least one blue light-emitting layer 0071 may not be 2, for example, it may be 1, 3, 4, or 5; and the number of green light-emitting layers 0072 in the at least one green light-emitting layer 0072 may not be 1, for example, it may be 2, 3, or 4. Furthermore, the at least one blue light-emitting layer 0071 and the at least one green light-emitting layer 0072 may be stacked in other ways. Furthermore, at least part of the green light-emitting layer 0072 may be replaced with a light-emitting layer capable of emitting both green and blue light.

[0140] According to the above content, it can be seen that 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.

[0141] On the one hand, when the light-emitting unit includes multiple blue light-emitting layers, the light-emitting unit emits more blue light to the sub-pixel area corresponding to the light-emitting unit in the quantum dot layer. In this way, more blue light is transmitted to the sub-pixel area, and more light is emitted by the sub-pixel area after converting blue light, thereby enhancing the display effect of the quantum dot panel. For example, Figure 23 The figure 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. Figure 23 It can be seen that the more blue light-emitting layers a light-emitting unit includes, the higher the intensity of the blue light (light with a wavelength of about 400 nanometers to 480 nanometers) emitted by the light-emitting unit.

[0142] On the other hand, when a light-emitting unit includes at least one blue light-emitting layer and at least one green light-emitting layer, or when a light-emitting unit includes at least one blue light-emitting layer and at least one light-emitting layer capable of emitting both green and blue light, the amount of blue and green light emitted by the light-emitting unit increases. This increases the amount of blue and green light transmitted to the corresponding sub-pixel region in the quantum dot layer of the light-emitting unit, increases the amount of green light converted from blue light in the sub-pixel region, and increases the amount of green light directly emitted, thereby enhancing the display effect of the quantum dot panel.

[0143] For example, Figure 24As shown, a light-emitting unit for emitting blue and green light may include: two blue light-emitting layers and a green light-emitting layer stacked in sequence in a direction away from the second substrate. Optionally, a light-emitting unit for emitting blue and green light may also include: two blue light-emitting layers and a light-emitting layer capable of emitting green and blue light stacked in sequence in a direction away from the second substrate. It can be seen that in these cases, the light-emitting unit can emit high-intensity blue light (light with a wavelength of approximately 400 nanometers to 480 nanometers) and high-intensity green light (light with a wavelength of approximately 505 nanometers to 566 nanometers).

[0144] For example, Figure 25 As shown, a light-emitting unit for emitting blue light and green light may also include: three blue light-emitting layers and one green light-emitting layer stacked in sequence in a direction away from the second base substrate. Optionally, a 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 stacked in sequence in a direction away from the second base substrate. Optionally, a light-emitting unit for emitting blue light and green light may also include: two blue light-emitting layers and two light-emitting layers capable of emitting green light and blue light stacked in sequence 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 higher intensity (light with a wavelength of about 400 nanometers to 480 nanometers), as well as green light with higher intensity (light with a wavelength of about 505 nanometers to 566 nanometers).

[0145] Since the voltage required to drive the green light-emitting layer to emit light is lower than the voltage required to drive the blue light-emitting layer to emit light, the introduction of a green light-emitting layer or a light-emitting layer that can emit blue and green light at the same time will not cause a significant increase in the power consumption of the light-emitting unit, thereby extending the life of the light-emitting unit.

[0146] In general, in the quantum dot panel provided by the embodiment of the present application, each light-emitting unit includes: anodes 0073 (such as Figure 22 As shown), at least one light-emitting layer and a cathode 0074 (as Figure 22 As shown), each of the at least one light-emitting layer can emit blue light and / or green light.

[0147] Optionally, 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 that can emit green light and blue light at the same time. This embodiment of the present application is not limited to this.

[0148] Based on the quantum dot substrate provided in the embodiment of the present application, the embodiment of the present application provides a method for manufacturing the quantum dot substrate. For example, Figure 26Flowchart of a method for manufacturing a quantum dot substrate provided in an embodiment of the present application. The method can be used to manufacture any of the above-mentioned quantum dot substrates. The method includes:

[0149] Step 2201, provide a first base substrate.

[0150] 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 located 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 that emit non-green light based on the incident blue light and are adjacent to the first green sub-pixel region; in a first surface of the black matrix away from the first substrate, at least a portion of the inner side of the annular region is inclined toward the first substrate, and the annular region surrounds the first green sub-pixel region.

[0151] Alternatively, as Figure 27 As shown, in step 2202, a black matrix may be formed on the first substrate. The black matrix may be formed by exposure and development. Figure 2 As shown, a quantum dot layer is formed on the first base substrate having the black matrix formed thereon.

[0152] In addition, when the quantum dot substrate further includes a color filter layer, the method for manufacturing the quantum dot substrate provided in the embodiment of the present application may further include: forming the color filter layer on the first base substrate. Figure 27 As shown, after forming a black matrix on the first substrate, as shown Figure 28 As shown, a color filter layer is first formed on a first base substrate having a black matrix formed thereon, and then, as shown in FIG. Figure 8 As shown, a quantum dot layer is formed on the first base substrate having the black matrix and the color filter layer.

[0153] In summary, in the quantum dot substrate manufactured by the manufacturing method of the quantum dot substrate provided in the embodiment of the present application, at least part of the inner side of the annular region is inclined toward the first base substrate. When the light-emitting units (such as OLED) corresponding to the first green sub-pixel region and its other adjacent sub-pixel regions in the quantum dot layer emit light at the same time, the blue light emitted by the light-emitting units corresponding to the other sub-pixel regions of the quantum dot layer can enter the first green sub-pixel region of the quantum dot layer. In this way, the blue light transmitted to the first green sub-pixel region of the quantum dot layer is increased, and the green light obtained by converting the blue light in the first green sub-pixel region of the quantum dot layer is increased, thereby enhancing the display effect of the quantum dot panel.

[0154] Based on the quantum dot panel provided in the embodiment of the present application, the embodiment of the present application also provides a method for manufacturing the quantum dot panel. For example, Figure 29This is a flow chart of a method for manufacturing a quantum dot panel provided in an embodiment of the present application. The method is used to manufacture any of the above-mentioned quantum dot panels, and the method includes:

[0155] Step 201: manufacture a second base substrate, a plurality of light-emitting units located on the second base substrate, and any one of the quantum dot substrates provided in the embodiments of the present application; wherein, the quantum dot substrate is located on a side of the light-emitting unit away from the second base substrate, and the light-emitting unit is located on a side of the quantum dot layer away from the first base substrate; the plurality of light-emitting units correspond one-to-one to the plurality of sub-pixel areas, and the light-emitting units are used to provide blue light to the corresponding sub-pixel areas.

[0156] The manufacturing method used in step 201 can be any one of a plurality of manufacturing methods. The following will be explained using manufacturing method 1 and manufacturing method 2 as examples.

[0157] Manufacturing method 1 is to manufacture a quantum dot substrate and a light-emitting substrate including a second base substrate and a light-emitting unit separately, and then arrange the quantum dot substrate and the light-emitting substrate relative to each other to form a quantum dot panel.

[0158] Manufacturing method 2: After manufacturing the quantum dot substrate, a flat layer can be provided on the quantum dot substrate, and then other structures of the quantum dot panel (such as the second base substrate and the light-emitting unit) can be manufactured in sequence on the flat layer. In this case, the quantum dot panel provided in the embodiment of the present application also includes the flat layer.

[0159] In summary, in the quantum dot panel manufactured by the method provided in the embodiment of the present application, at least 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 its other adjacent sub-pixel regions in the quantum dot layer emit light at the same time, the blue light emitted by the light-emitting units corresponding to the other sub-pixel regions of the quantum dot layer can enter the first green sub-pixel region of the quantum dot layer. In this way, the blue light transmitted to the first green sub-pixel region of the quantum dot layer is increased, and the green light obtained by converting the blue light in the first green sub-pixel region of the quantum dot layer is increased, thereby enhancing the display effect of the quantum dot panel.

[0160] Based on the quantum dot panel provided in the embodiment of the present application, the embodiment of the present application provides a control method for the quantum dot panel. For example, Figure 30A flow chart of a control method for a quantum dot panel provided in an embodiment of the present application. The control method is used to control any of the above-mentioned quantum dot substrates including a quantum dot panel with a first pixel area, such as a quantum dot panel in which the quantum dot substrate only includes a first pixel area, or a quantum dot panel in which the quantum dot substrate includes a first pixel area and a second pixel area. In addition, the first pixel area includes: a first green sub-pixel area, a red sub-pixel area, a blue sub-pixel area, and a second green sub-pixel area, and the second pixel area includes: a red sub-pixel area, a blue sub-pixel area, and two second green sub-pixel areas. Figure 30 As shown, the control method includes:

[0161] Step 301: Obtain an image to be displayed on the quantum dot panel.

[0162] Step 302 : When the image to be displayed includes red sub-pixels, green sub-pixels, and blue sub-pixels, control the light-emitting units corresponding to the red sub-pixel region, the light-emitting units corresponding to the first green sub-pixel region, and the light-emitting units corresponding to the blue sub-pixel region to emit blue light.

[0163] Step 303 : When the image to be displayed includes a green sub-pixel but does not include a red sub-pixel and a blue sub-pixel, control the light-emitting unit corresponding to the second green sub-pixel region to emit blue light.

[0164] Here, the quantum dot substrate in the quantum dot panel to be controlled includes a second green sub-pixel region as an example. Alternatively, the quantum dot substrate may not include the second green sub-pixel region but include a first green sub-pixel region. When controlling the quantum dot panel in which such a quantum dot substrate is located, in step 303, when the image to be displayed includes a green sub-pixel but does not include a red sub-pixel or a blue sub-pixel, the light-emitting unit corresponding to the first green sub-pixel region may be controlled to emit blue light.

[0165] Based on the control method of the quantum dot panel provided in the embodiment of the present application, the embodiment of the present application provides a control device for a quantum dot panel. The control device is used to control any of the above-mentioned quantum dot panels including a first pixel region on a quantum dot substrate, such as a quantum dot panel in which the quantum dot substrate only includes a first pixel region, or a quantum dot panel in which the quantum dot substrate includes a first pixel region and a second pixel region. In addition, 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, and the second pixel region includes: a red sub-pixel region, a blue sub-pixel region, and two second green sub-pixel regions.

[0166] For example, Figure 31 As shown, the control device of the quantum dot panel includes:

[0167] The acquisition module 2501 is used to acquire the image to be displayed on the quantum dot panel.

[0168] The first control module 2502 is used to control 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 when the image to be displayed includes red sub-pixels, green sub-pixels and blue sub-pixels.

[0169] 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 but does not include the red sub-pixel and the blue sub-pixel.

[0170] The embodiment of the present application provides another control device for a quantum dot panel, which is used to control any of the above-mentioned quantum dot panels; the control device for the quantum dot panel includes a processor and a memory, wherein the memory stores a program, and the processor is used to execute the program stored in the memory to implement any of the control methods for the quantum dot panel provided in the embodiment of the present application, such as Figure 30 The control method shown.

[0171] The present application provides a storage medium in which a computer program is stored. When the computer program is run on a computer, the computer executes any one of the control methods for a quantum dot panel provided in the present application, such as Figure 30 The control method shown.

[0172] The present application also provides a computer program product comprising instructions. When the computer program product is run on a computer, the computer is caused to execute any of the control methods for the quantum dot panel provided in the present application. Figure 30 The control method shown.

[0173] The present application embodiment provides a quantum dot device, such as Figure 32 As shown, the quantum dot device includes: any one of the above quantum dot panels 01, and a control device 02 for the above quantum dot panel 01. The quantum dot panel 01 is connected to the control device 02 for the above quantum dot panel 01, and the control device 02 for the quantum dot panel 01 is used to control the quantum dot panel 01 to display an image.

[0174] Quantum dot devices can be any product or component with display function, such as electronic paper, mobile phones, tablet computers, televisions, monitors, laptops, digital photo frames, and navigation systems.

[0175] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A quantum dot substrate, characterized in that include: A first base substrate, and a black matrix and a quantum dot layer located on the first base substrate; The quantum dot layer includes: a plurality of sub-pixel regions located between the black matrices, the plurality of sub-pixel regions including a first green sub-pixel region configured to emit green light based on incident blue light, and other sub-pixel regions that emit non-green light based on the incident blue light and are adjacent to the first green sub-pixel region; On a first surface of the black matrix away from the first base substrate, at least a portion of the inner side of the annular region is inclined toward the first base substrate, and the annular region surrounds the first green sub-pixel region; For at least one sub-pixel region, the first surface is connected to the third surface of the black matrix close to the sub-pixel region, and the third surface is connected to the second surface of the black matrix close to the first base substrate.

2. The quantum dot substrate according to claim 1, characterized in that The quantum dot substrate satisfies at least one of the following conditions: The area where at least part of the inner side of the annular area is located is: a flat area, or a curved area having at least one of a concave and a convex structure; At least a portion of the inner side is connected to the second surface of the black matrix close to the first base substrate; The area of ​​the first surface, except for the area in the annular area where the inner side is inclined toward the first base substrate, is parallel to the first base substrate; Furthermore, the quantum dot substrate further includes: a color filter layer located between the black matrices, and the first base substrate, the color filter layer and the quantum dot layer are arranged in sequence.

3. The quantum dot substrate according to claim 1 or 2, characterized in that The quantum dot substrate further includes: a reflective layer located on the third surface, wherein the reflective layer is configured to reflect light incident from a side of the quantum dot layer away from the first base substrate to a sub-pixel region of the quantum dot layer adjacent to the third surface.

4. The quantum dot substrate according to claim 3, characterized in that For a sub-pixel region of at least one of the sub-pixel regions: A side of the third surface away from the first substrate is inclined toward the sub-pixel region, and an angle between the third surface and the second surface is in the range of [30 degrees, 90 degrees); The third surface is perpendicular to the second surface; Alternatively, a side of the third surface away from the first substrate is inclined outside the sub-pixel area, and an angle between the third surface and the second surface is in the range of (0, 30 degrees).

5. The quantum dot substrate according to claim 1 or 2, characterized in that The plurality of sub-pixel regions include: a first green sub-pixel region, a red sub-pixel region, a blue sub-pixel region, and a 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 configured to emit green light based on incident blue light, the red sub-pixel region is configured to emit red light based on incident blue light, and the blue sub-pixel region is configured to transmit the incident blue light; The area of ​​the first surface, except for the area in the annular area where the inner side is inclined toward the first base substrate, is parallel to the first base substrate; The multiple sub-pixel areas constitute multiple pixel areas, and the multiple pixel areas include a first pixel area; the first pixel area includes: one red sub-pixel area, one first green sub-pixel area, one blue sub-pixel area and one second green sub-pixel area.

6. The quantum dot substrate according to claim 5, characterized in that The quantum dot panel meets any of the following conditions: The plurality of pixel regions further include a second pixel region, the second pixel region including: one red sub-pixel region, one blue sub-pixel region, and two second green sub-pixel regions; In addition, the multiple pixel areas also include a second pixel area, the second pixel area includes: one red sub-pixel area, one blue sub-pixel area and two second green sub-pixel areas; the multiple pixel areas are arranged in an array, and in the row direction and column direction of the multiple pixel areas, the first pixel areas and the second pixel areas are arranged alternately.

7. A quantum dot panel, characterized in that: include: A second base substrate, a plurality of light-emitting units located on the second base substrate, and the quantum dot substrate according to any one of claims 1 to 6; The quantum dot substrate is located on a side of the light emitting unit away from the second base substrate, and the light emitting unit is located on a side of the quantum dot layer away from the first base substrate; The plurality of light-emitting units correspond to the plurality of sub-pixel regions on a one-to-one basis, and the light-emitting units are configured to provide blue light to the corresponding sub-pixel regions.

8. The quantum dot panel according to claim 7, characterized in that 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: a light-emitting unit corresponding to at least one sub-pixel region configured to emit green light.

9. The quantum dot panel according to claim 8, characterized in that For one of the light-emitting units for emitting blue light and green light, the light-emitting unit comprises: at least one blue light-emitting layer and at least one green light-emitting layer stacked; The blue light emitting layer is used to provide blue light to the sub-pixel region corresponding to the light emitting unit, and the green light emitting layer is used to provide green light to the sub-pixel region corresponding to the light emitting unit.

10. The quantum dot panel according to claim 9, characterized in that: The light emitting unit includes: two blue light emitting layers and one green light emitting layer arranged in sequence in a direction away from the second base substrate.

11. A method for manufacturing a quantum dot substrate, characterized in that: The method is used to manufacture the quantum dot substrate according to any one of claims 1 to 6, and the method comprises: providing a first substrate; forming a black matrix and a quantum dot layer on the first substrate; The quantum dot layer includes: a plurality of sub-pixel regions located 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 that emit non-green light based on the incident blue light and are adjacent to the first green sub-pixel region; On a first surface of the black matrix away from the first base substrate, at least a portion of an inner side of an annular region is inclined toward the first base substrate, and the annular region surrounds the first green sub-pixel region.

12. A method for manufacturing a quantum dot panel, characterized in that: The method is used to manufacture the quantum dot panel according to any one of claims 7 to 10, and the method comprises: Manufacturing a second base substrate, a plurality of light-emitting units located on the second base substrate, and the quantum dot substrate according to any one of claims 1 to 6; The quantum dot substrate is located on a side of the light emitting unit away from the second base substrate, and the light emitting unit is located on a side of the quantum dot layer away from the first base substrate; The plurality of light-emitting units correspond to the plurality of sub-pixel regions on a one-to-one basis, and the light-emitting units are configured to provide blue light to the corresponding sub-pixel regions.

13. A method for controlling a quantum dot panel, characterized in that: The method is used to control the quantum dot panel according to any one of claims 7 to 10; the multiple sub-pixel areas include: the first green sub-pixel area, the red sub-pixel area, the blue sub-pixel area, and the second green sub-pixel area; the red sub-pixel area and the blue sub-pixel area are both adjacent to the first green sub-pixel area; the second green sub-pixel area is used to emit green light based on the incident blue light, the red sub-pixel area is used to emit red light based on the incident blue light, and the blue sub-pixel area is used to transmit the incident blue light; the area of ​​the first surface, except for the area in which the inner side of the annular area is inclined toward the first substrate, is parallel to the first substrate; the multiple sub-pixel areas constitute a plurality of pixel areas, and the multiple pixel areas include a first pixel area; the first pixel area includes: one red sub-pixel area, one first green sub-pixel area, one blue sub-pixel area, and one second green sub-pixel area; The method comprises: Acquiring an image to be displayed on the quantum dot panel; 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; When the image to be displayed includes the green sub-pixel but does not include the red sub-pixel and the blue sub-pixel, the light-emitting unit corresponding to the second green sub-pixel region is controlled to emit blue light.

14. A control device for a quantum dot panel, characterized in that: The control device of the quantum dot panel is used to control the quantum dot panel according to any one of claims 7 to 10; the other sub-pixel areas include: a red sub-pixel area, a blue sub-pixel area and a second green sub-pixel area; the second green sub-pixel area is used to emit green light based on the incident blue light, the red sub-pixel area is used to emit red light based on the incident blue light, and the blue sub-pixel area is used to transmit the incident blue light; the area of ​​the first surface except the area in which the inner side of the annular area is inclined toward the first substrate is parallel to the first substrate; the multiple sub-pixel areas constitute a plurality of pixel areas, and the multiple pixel areas include a first pixel area; the first pixel area includes: one red sub-pixel area, one first green sub-pixel area, one blue sub-pixel area and one second green sub-pixel area; The control device of the quantum dot panel includes a processor and a memory, wherein the memory stores a program, and the processor is used to execute the program stored in the memory to implement the method according to claim 13.

15. A quantum dot device, characterized in that The quantum dot device comprises: the quantum dot panel according to any one of claims 7 to 10, and the control device of the quantum dot panel according to claim 14.

Images