Display panel, mask, method for manufacturing display panel, and electronic device

Abstract

The invention provides a display panel, a mask, a method for manufacturing the display panel and electronic equipment, and the display panel comprises a substrate and a pixel definition layer which is located on the substrate and is provided with a plurality of light-emitting unit openings and retaining walls located around the light-emitting unit openings; the blocking layer is located on the blocking wall. According to the technical scheme, the blocking layer is arranged on the retaining wall around the opening of the light-emitting unit, so that the width of the shadow area can be effectively reduced, and the probability that the light-emitting units with different colors are evaporated to the same area is reduced. In addition, the width of the shadow region is inversely proportional to the size of the sub-pixel. Therefore, the smaller the width of the shadow region is, the larger the sub-pixels can be, the larger the light-emitting area is, and the larger the aperture opening ratio is, so that the display effect of the display panel can be improved.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of display technology, and more specifically, to a display panel, a mask, a method for manufacturing a display panel, and an electronic device. Background Art

[0002] In recent years, the development of flat panel displays has shifted from traditional liquid crystal display (LCD) screens to organic light-emitting diode (OLED) screens. Compared with LCD technology, OLED technology has many advantages, especially that it does not have a backlight component. Since OLED is a self-luminous element, each sub-pixel can be directly controlled by a thin film transistor (TFT) to emit light. In addition, the contrast of OLED screens can be significantly improved. When displaying a black image, the relevant sub-pixel can simply be turned off. With this technology, the contrast ratio can even reach 1 million to 1. In contrast, the backlight of LCD maintains a consistent brightness, and each pixel is then adjusted by the liquid crystal to determine whether to turn on, turn off, or adjust the brightness. Since LCD cannot completely block the light emitted by the backlight, the contrast ratio is about 1000 to 1. In addition, due to the self-luminous characteristics of OLED, it can be further developed into various types of displays, such as foldable, rollable and stretchable displays.

[0003] Each OLED sub-pixel includes a light-emitting unit for a specific color of light. The light-emitting unit is a thin film structure composed of multiple layers of organic materials, including a light-emitting layer, a carrier transport layer, an electron transport layer, and a hole transport layer. By doping and combining specific organic materials, it is possible to emit light of a specific color. Common OLED sub-pixels include red sub-pixels, green sub-pixels, and blue sub-pixels.

[0004] The light-emitting unit is evaporated onto the display panel substrate using fine metal mask (FMM) technology. Specifically, during the evaporation process, the material containing the light-emitting unit is heated and converted into gas. The light-emitting unit passes through the FMM mask hole and is deposited only in the area between the mask hole part and the substrate to form an OLED sub-pixel. In the process of evaporating the light-emitting unit, it is necessary to avoid the occurrence of color mixing. The so-called color mixing phenomenon refers to the phenomenon that light-emitting units emitting different colors are evaporated into the same area. Summary of the invention

[0005] The present application provides a display panel, a mask, a method for manufacturing a display panel and an electronic device. The width of the shadow area of ​​the display panel is small, thereby reducing the probability that light-emitting units of different colors are evaporated into the same area.

[0006] In a first aspect, an embodiment of the present application provides a display panel, which includes: a substrate, a pixel definition layer located on the substrate, the pixel definition layer having a plurality of light-emitting unit openings and retaining walls located around the light-emitting unit openings; and a blocking layer located on the retaining walls.

[0007] The above technical solution provides a blocking layer on the retaining wall around the light-emitting unit opening, which can effectively reduce the width of the shadow area, thereby reducing the probability of light-emitting units of different colors being evaporated into the same area. In addition, the width of the shadow area is inversely proportional to the size of the sub-pixel. Therefore, the smaller the width of the shadow area, the larger the sub-pixel can be, the larger the light-emitting area, and the larger the aperture ratio, thereby improving the display effect of the display panel.

[0008] In combination with the first aspect, in a possible implementation of the first aspect, the blocking layer includes a plurality of blocking portions, and one of the plurality of blocking portions is provided on a retaining wall between two adjacent light emitting unit openings among the plurality of light emitting unit openings.

[0009] In combination with the first aspect, in a possible implementation of the first aspect, the multiple light-emitting unit openings include: at least one first light-emitting unit opening, at least one second light-emitting unit opening and at least one third light-emitting unit opening, the first light-emitting unit opening, the second light-emitting unit opening and the third light-emitting unit opening are respectively provided with light-emitting units of different colors, the multiple blocking portions include a plurality of first blocking portions and a plurality of second blocking portions, the first blocking portions and the second blocking portions have different sizes, the first blocking portions are provided on the blocking wall between the first light-emitting unit opening and the second light-emitting unit opening, and the second blocking portions are provided on the blocking wall between the second light-emitting unit opening and the third light-emitting unit opening.

[0010] In combination with the first aspect, in a possible implementation of the first aspect, the length of the first blocking portion is greater than or equal to the first side length, and the length of the second blocking portion is greater than or equal to the second side length, wherein the first side length is the side length of a light-emitting unit opening adjacent to the first blocking portion, and the second side length is the side length of a light-emitting unit opening adjacent to the second blocking portion, and the first side length is not equal to the second side length.

[0011] Optionally, the first side length is the larger value of the side length of the first side and the side length of the second side, the second side length is the larger value of the side length of the third side and the side length of the fourth side, the first side is the side where the opening of the first light-emitting unit is adjacent to the first blocking portion, the second side is the side where the opening of the second light-emitting unit is adjacent to the first blocking portion, the third side is the side where the opening of the second light-emitting unit is adjacent to the second blocking portion, and the fourth side is the side where the opening of the third light-emitting unit is adjacent to the second blocking portion.

[0012] Optionally, the first side length is the smaller value of the side length of the first side and the side length of the second pass, the second side length is the smaller value of the side length of the third pass and the side length of the fourth pass, the first side is the side where the first light-emitting unit opening is adjacent to the first blocking portion, the second side is the side where the second light-emitting unit opening is adjacent to the first blocking portion, the third side is the side where the second light-emitting unit opening is adjacent to the second blocking portion, and the fourth side is the side where the third light-emitting unit opening is adjacent to the second blocking portion

[0013] In combination with the first aspect, in a possible implementation of the first aspect, the pixel definition layer includes a plurality of first light-emitting unit opening rows and a plurality of second light-emitting unit opening rows, the first light-emitting unit opening rows alternately and spaced apart from a plurality of first light-emitting unit openings and a plurality of second light-emitting unit openings, the second light-emitting unit opening rows alternately and spaced apart from a plurality of second light-emitting unit openings and a plurality of third light-emitting unit openings, the first light-emitting unit openings, the second light-emitting unit openings and the third light-emitting unit openings are respectively provided with light-emitting units of different colors, the plurality of blocking portions include a plurality of third blocking portions, a plurality of fourth blocking portions and a plurality of fifth blocking portions, the third blocking portions, the fourth blocking portions and the fifth blocking portions have different sizes, at least one third blocking portion is provided on the retaining wall between the adjacent first light-emitting unit opening rows and the second light-emitting unit opening rows, the fourth blocking portion is provided between two adjacent light-emitting unit openings of the first light-emitting unit opening row, and the fifth blocking portion is provided between two adjacent light-emitting unit openings of the second light-emitting unit opening row.

[0014] In combination with the first aspect, in a possible implementation of the first aspect, the width of the fourth blocking portion is greater than or equal to the width of an adjacent light-emitting unit opening, and / or the length of the fifth blocking portion is greater than or equal to the length of an adjacent light-emitting unit opening. For example, an adjacent light-emitting unit opening of the fourth blocking portion is a light-emitting unit opening that emits green light, and the width of the fourth blocking portion may be greater than or equal to the width of the light-emitting unit opening that emits green light. For another example, an adjacent light-emitting unit opening of the fifth blocking portion is a light-emitting unit opening that emits green light, and the length of the fifth blocking portion is greater than or equal to the light-emitting unit opening that emits green light.

[0015] Among the three light-emitting unit openings, the light-emitting unit emitting green light has the smallest opening. Therefore, as long as the length or width of the blocking portion adjacent to the light-emitting unit emitting green light is larger than that of the light-emitting unit emitting green light, it means that when red and blue are evaporated, the shadows of red and blue will not be evaporated onto the light-emitting unit emitting green light, thus not causing the problem of color mixing.

[0016] In combination with the first aspect, in a possible implementation of the first aspect, the blocking layer includes a plurality of blocking layer openings surrounded by a blocking portion, the plurality of blocking layer openings correspond one-to-one to the plurality of light-emitting unit openings, each of the plurality of blocking layer openings is respectively located above the corresponding light-emitting unit opening, and an opening area of ​​each of the plurality of blocking layer openings is greater than an opening area of ​​the corresponding light-emitting unit opening.

[0017] In combination with the first aspect, in a possible implementation manner of the first aspect, the display panel further includes a plurality of protrusions, the plurality of protrusions are respectively located in the plurality of light emitting unit openings, and the light emitting units are disposed on the protrusions.

[0018] After the protrusion is added, the distance between the pixel area where the light emitting unit is disposed and the FMM can be reduced, so that the size of the pixel area can be increased and the light emitting area can be increased.

[0019] In combination with the first aspect, in a possible implementation of the first aspect, the display panel further includes a plurality of spacers, the spacers are located on the blocking layer, and at least two light-emitting unit openings are included between any two adjacent spacers among the plurality of spacers.

[0020] The spacer can prevent the FMM from being too close to the pixel definition layer and thus scratching the pixel definition layer.

[0021] In a second aspect, an embodiment of the present application provides a display panel, comprising: a substrate, a pixel definition layer located on the substrate, the pixel definition layer having a plurality of light-emitting unit openings and retaining walls located around the light-emitting unit openings; a plurality of protrusions, the plurality of protrusions being respectively located in the plurality of light-emitting unit openings, and the light-emitting units being arranged on the protrusions.

[0022] The above technical solution is provided with a protrusion in the light-emitting unit opening of the display panel. In other words, a protrusion is provided on the substrate in the light-emitting unit opening, and the light-emitting unit is provided on the protrusion. Compared with the light-emitting unit being directly provided on the substrate in the light-emitting unit opening, providing the light-emitting unit on the protrusion can reduce the distance between the light-emitting unit and the FMM, thereby increasing the size of the light-emitting unit and the light-emitting area. In this way, the display panel can provide a better display effect.

[0023] In combination with the second aspect, in a possible implementation manner of the second aspect, the display panel further includes: a blocking layer located on the retaining wall.

[0024] The above technical solution provides a blocking layer on the retaining wall around the light-emitting unit opening, which can effectively reduce the width of the shadow area, thereby reducing the probability of light-emitting units of different colors being evaporated into the same area. In addition, the width of the shadow area is inversely proportional to the size of the sub-pixel. Therefore, the smaller the width of the shadow area, the larger the sub-pixel can be, the larger the light-emitting area, and the larger the aperture ratio, thereby improving the display effect of the display panel.

[0025] In combination with the second aspect, in a possible implementation of the second aspect, the blocking layer includes a plurality of blocking portions, and one of the plurality of blocking portions is provided on a retaining wall between two adjacent light emitting unit openings among the plurality of light emitting unit openings.

[0026] In combination with the second aspect, in a possible implementation of the second aspect, the multiple light-emitting unit openings include: at least one first light-emitting unit opening, at least one second light-emitting unit opening and at least one third light-emitting unit opening, the first light-emitting unit opening, the second light-emitting unit opening and the third light-emitting unit opening are respectively provided with light-emitting units of different colors, the multiple blocking portions include a plurality of first blocking portions and a plurality of second blocking portions, the first blocking portions and the second blocking portions have different sizes, the first blocking portions are provided on the blocking wall between the first light-emitting unit opening and the second light-emitting unit opening, and the second blocking portions are provided on the blocking wall between the second light-emitting unit opening and the third light-emitting unit opening.

[0027] In combination with the second aspect, in a possible implementation of the second aspect, the pixel definition layer includes a plurality of first light-emitting unit opening rows and a plurality of second light-emitting unit opening rows, the first light-emitting unit opening rows alternately and spaced apart from a plurality of first light-emitting unit openings and a plurality of second light-emitting unit openings, the second light-emitting unit opening rows alternately and spaced apart from a plurality of second light-emitting unit openings and a plurality of third light-emitting unit openings, the first light-emitting unit openings, the second light-emitting unit openings and the third light-emitting unit openings are respectively provided with light-emitting units of different colors, the plurality of blocking portions include a plurality of third blocking portions, a plurality of fourth blocking portions and a plurality of fifth blocking portions, the third blocking portions, the fourth blocking portions and the fifth blocking portions have different sizes, at least one third blocking portion is provided on the retaining wall between the adjacent first light-emitting unit opening rows and the second light-emitting unit opening rows, the fourth blocking portion is provided between two adjacent light-emitting unit openings of the first light-emitting unit opening row, and the fifth blocking portion is provided between two adjacent light-emitting unit openings of the second light-emitting unit opening row.

[0028] In combination with the second aspect, in a possible implementation of the second aspect, the blocking layer includes a plurality of blocking layer openings surrounded by a blocking portion, the plurality of blocking layer openings correspond one-to-one to the plurality of light-emitting unit openings, each of the plurality of blocking layer openings is respectively located above the corresponding light-emitting unit opening, and an opening area of ​​each of the plurality of blocking layer openings is greater than an opening area of ​​the corresponding light-emitting unit opening.

[0029] In combination with the second aspect, in a possible implementation of the second aspect, the display panel further includes a plurality of spacers, the spacers are located on the blocking layer, and at least two light-emitting unit openings are included between any two adjacent spacers among the plurality of spacers.

[0030] The spacer can further reduce the width of the shadow area, thereby further reducing the probability that light-emitting units of different colors are evaporated into the same area.

[0031] In a third aspect, an embodiment of the present application provides a mask for manufacturing a display panel according to the first aspect or any possible implementation of the first aspect.

[0032] In a fourth aspect, an embodiment of the present application provides a mask for manufacturing a display panel such as the second surface or any possible implementation of the second aspect.

[0033] In a fifth aspect, an embodiment of the present application provides a method for manufacturing a display panel, the method comprising: using the mask of the third aspect to manufacture the display panel.

[0034] In a sixth aspect, an embodiment of the present application provides a method for manufacturing a display panel, the method comprising: using the mask of the fourth aspect to manufacture the display panel.

[0035] In a seventh aspect, an embodiment of the present application provides an electronic device, which includes a display panel as in the first aspect or any possible implementation of the first aspect.

[0036] In an eighth aspect, an embodiment of the present application provides an electronic device, comprising a display panel as in the second aspect or any possible implementation of the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a schematic diagram of a display panel.

[0038] Figure 2 is a cross-sectional view of a display panel.

[0039] Figure 3 It is a schematic diagram of the evaporation process.

[0040] Figure 4This is another schematic diagram of evaporation.

[0041] Figure 5 Schematic diagram of the edge of the FMM mask hole.

[0042] Figure 6 is a schematic diagram of the shaded areas of SW and SH of different sizes.

[0043] Figure 7 is a schematic diagram of another display panel.

[0044] Figure 8 is a schematic diagram of a display panel provided according to an embodiment of the present application.

[0045] Fig. 9 is a cross-sectional view of a display panel.

[0046] Fig.10 A schematic diagram showing a shaded area with and without a blocking portion is shown.

[0047] Fig.11 is a schematic diagram of another display panel provided according to an embodiment of the present application.

[0048] Fig.12 is a schematic diagram of area 1130 and area 1140 in display panel 1100 .

[0049] Fig.13 is a schematic diagram of another display panel provided according to an embodiment of the present application.

[0050] Fig.14 is a schematic diagram of another display panel provided according to an embodiment of the present application.

[0051] Fig.15 is a cross-sectional view of another display panel provided according to an embodiment of the present application.

[0052] Fig.16 is a schematic diagram of another display panel provided according to an embodiment of the present application.

[0053] Fig.17 is a cross-sectional view of a display panel.

[0054] Fig.18 This is an interface diagram of another display panel provided according to an embodiment of the present application.

[0055] Fig.19 This is an interface diagram of another display panel provided according to an embodiment of the present application.

[0056] Fig. 20 It is a schematic diagram of a mask provided according to an embodiment of the present application.

[0057] Fig.21is a cross-sectional view of the mask.

[0058] Fig. 22 is a schematic diagram of another mask provided according to an embodiment of the present application.

[0059] Fig.23 is a schematic diagram of another mask provided according to an embodiment of the present application.

[0060] Fig.24 is a schematic diagram of another mask provided according to an embodiment of the present application.

[0061] Fig.25 is a schematic diagram of another mask provided according to an embodiment of the present application.

[0062] Fig.26 is a cross-sectional view of the mask. DETAILED DESCRIPTION

[0063] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0064] In the embodiments of the present application, words such as "exemplary" and "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" in the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of the word "exemplary" is intended to present concepts in a concrete way.

[0065] In the embodiments of the present application, "corresponding (corresponding, relevant)" and "corresponding (corresponding)" can sometimes be used interchangeably. It should be pointed out that when the distinction between them is not emphasized, the meanings they intend to express are consistent.

[0066] The network architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. A person of ordinary skill in the art can appreciate that with the evolution of the network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems.

[0067] References to "one embodiment" or "some embodiments" etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present application. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear at different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0068] In the present application, "at least one" means one or more, and "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: including the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0069] Figure 1 is a schematic diagram of the display panel. Figure 1 The display panel 100 shown includes a pixel definition layer (PDL) 110 located on a substrate (not shown in the figure). The pixel definition layer 100 has a plurality of light-emitting unit openings. A light-emitting unit of a color light is arranged in a light-emitting unit opening. For example, if a light-emitting unit emitting red light is arranged in a light-emitting unit opening, then the light-emitting unit opening can be said to correspond to a red sub-pixel; if a light-emitting unit emitting green light is arranged in a light-emitting unit opening, then the light-emitting unit opening can be said to correspond to a green sub-pixel; if a light-emitting unit emitting blue light is arranged in a light-emitting unit opening, then the light-emitting unit opening can be said to correspond to a blue sub-pixel. Since the light-emitting unit opening and the sub-pixel are in a one-to-one correspondence. Therefore, a light-emitting unit opening can also be considered as a sub-pixel.

[0070] For ease of description, in the embodiment of the present application, the light-emitting unit that emits red light may be referred to as the light-emitting unit R, the light-emitting unit that emits green light may be referred to as the light-emitting unit G, and the light-emitting unit that emits blue light may be referred to as the light-emitting unit B.

[0071] It can be understood that the display panel referred to in the embodiments of the present application is a display panel manufactured based on an evaporation process, for example, an OLED display panel.

[0072] The display panel provided in the embodiment of the present application may be a traditional display panel having only a display function, or may be a touch display panel having a touch function.

[0073] Figure 2 is a cross-sectional view of the display panel. Figure 2 The cross-sectional view of the display panel shown is taken along Figure 1 The cross-sectional view is obtained along the section line AA' shown.

[0074] like Figure 2 As shown, the retaining wall of the pixel definition layer surrounds the light-emitting unit opening. The light-emitting unit is located in the light-emitting unit opening. The light-emitting unit is arranged in the light-emitting unit opening by evaporation.

[0075] Figure 3 It is a schematic diagram of the evaporation process.

[0076] The material containing the light-emitting unit is heated by the evaporation source and converted into gas, and the light-emitting unit passes through the FMM mask hole and is deposited in the area between the mask hole and the substrate.

[0077] The evaporation range of the evaporation source is determined by the evaporation angle. Figure 3 The evaporation angle θ of the evaporation source 301 shown determines the evaporation range of the evaporation source 301. The area between the reference line 311 and the reference line 312 is the evaporation range of the evaporation source 301. Similarly, the evaporation angle of the evaporation source 302 determines the evaporation range of the evaporation source 302, and the evaporation angle of the evaporation source 303 determines the evaporation range of the evaporation source 303.

[0078] like Figure 3 As shown, during the evaporation process, in addition to the evaporation source 301 , the evaporation source 302 and the evaporation source 303 can also evaporate the light-emitting unit into the evaporation area 320 .

[0079] Due to the limitations of the evaporation process and the design and process limitations of the FMM, the thickness of the light-emitting material evaporated onto the substrate is not exactly the same. Usually, a target thickness of the light-emitting material (also called "target film thickness") and a reference ratio are set. If the thickness of the light-emitting material in a part of the area is less than the target film thickness × reference ratio, then this part of the area can be called a shadow area; if the thickness of the light-emitting material in a part of the area is greater than or equal to the target film thickness × reference ratio, then this part of the area can be called a pixel area. For example, assuming that the target film thickness is 100 nanometers (nanometre, nm) and the reference ratio is 95%. Then, if the thickness of a part of the area is less than 95nm, then this part of the area can be called a shadow area; if the thickness of a part of the area is greater than or equal to 95nm, then this part of the area can be called a pixel area. In addition, unlike the pixel area, the material used to form the cathode will not be evaporated into the shadow area, so the shadow area will not emit light.

[0080] like Figure 3 As shown, according to the different thicknesses, the evaporation area 320 can be divided into a pixel area and a shadow area, wherein the pixel area includes a pixel area 321, and the shadow area includes a shadow area 322 and a shadow area 323. Figure 3 As shown, the pixel area 321 is located in the light-emitting opening area of ​​the pixel definition layer surrounded by the blocking wall. The shadow area 322 is located on the side wall and top of the blocking wall 331 , and the shadow area 323 is located on the side wall and top of the blocking wall 332 .

[0081] Figure 4 This is another schematic diagram of evaporation. Figure 4 The schematic diagram of evaporation is shown as Figure 3 The evaporation diagram shown Figure 1 More specifically, Figure 4 The schematic diagram of evaporation shown shows the blocking wall 331 , the shadow area on the side wall and the top of the blocking wall 331 , and a part of the pixel area.

[0082] like Figure 3 The shaded area 322 is shown in Figure 4 The shadow area 401, the shadow area 402 and the shadow area 403 are included. Figure 4 The pixel area 410 is shown as Figure 3 A portion of the pixel area 321 close to the barrier wall 331 is shown.

[0083] According to the edge of the FMM mask hole, the shadow area can be further divided into an inner shadow area and an outer shadow area. The inner shadow area refers to the shadow area generated by the edge of the FMM mask hole to the target vapor-deposited light-emitting unit opening. The outer shadow area is the shadow area generated by the edge of the FMM mask hole to the adjacent opening of the target vapor-deposited light-emitting unit opening. According to the above definition, if Figure 4 The outer shadow area shown is shadow area 401 , and the inner shadow area includes shadow area 402 and shadow area 403 .

[0084] According to the evaporation source that generates the shadow area, the shadow area can be divided into a first shadow area and a second shadow area. The first shadow area is a shadow area generated by the evaporation source below the opening of the target evaporated light-emitting unit and another evaporation source adjacent to the evaporation source. Figure 4 , the evaporation source below the opening of the target evaporated light-emitting unit is evaporation source 301, the evaporation source adjacent to evaporation source 301 is evaporation source 302, and the first shadow area includes shadow area 401 and shadow area 402. In other words, reference line 311 and reference line 313 determine the range of the first shadow area. The second shadow area is a shadow area generated only by the evaporation source below the opening of the target evaporated light-emitting unit. Corresponding to Figure 4 , relative to the target evaporated light-emitting unit, the evaporation source below the opening is the evaporation source 301 , and the second shadow area is the shadow area 403 .

[0085] Figure 5 Schematic diagram of the edge of the FMM mask hole.

[0086] The edge of the FMM mask hole is one of the factors that determine the shadow area. More specifically, the step width (SW) and step height (SH) of the FMM mask hole edge affect the shadow area. Or, in other words, the step width (SW) and step height (SH) of the FMM mask hole edge affect the first shadow area mentioned above.

[0087] Figure 6 is a schematic diagram of the shaded areas of SW and SH of different sizes.

[0088] like Figure 6 (a) and Figure 6 As shown in (b), Figure 6 The SW and SH of the FMM mask hole edge in (b) are smaller than Figure 6 The SW and SH of the hole edge of the FMM mask in (a), therefore, Figure 6 The width of the first shadow area in (b) is smaller than Figure 6 The width of the first shaded area in (a).

[0089] The distance between the spaced pixels (or the spaced light emitting unit openings) may be referred to as a PDL gap. During the evaporation process, the shadow area generated by the evaporation should be prevented from being evaporated to the adjacent light emitting unit openings.

[0090] Figure 7 is a schematic diagram of another display panel.

[0091] like Figure 7 As shown, the shadow area 702 generated when the light-emitting unit opening 701 is evaporated overlaps with the light-emitting unit opening 703. If the light-emitting unit emitting blue light is evaporated at the light-emitting unit opening 701 and the light-emitting unit emitting green light is evaporated at the light-emitting unit opening 703, light-emitting units of different colors will be evaporated to the same area, thereby causing color mixing.

[0092] like Figure 7 As shown, since light-emitting units of different colors are evaporated in the light-emitting unit opening 703, the light-emitting unit opening 703 will emit light of different colors, thereby causing the problem of poor display effect.

[0093] The embodiment of the present application provides a display panel, which includes a blocking layer, which is located above the PDL, so that the distance between the FMM and the display panel can be shortened, thereby reducing the width of the shadow area, thereby reducing the probability that light-emitting units of different colors are evaporated into the same area.

[0094] Figure 8 is a schematic diagram of a display panel provided according to an embodiment of the present application.

[0095] like Figure 8 The display panel 800 shown includes a pixel definition layer 810 located on a substrate. The pixel definition layer 810 includes a plurality of light-emitting unit openings, which include a plurality of light-emitting unit openings R, a plurality of light-emitting unit openings G, and a plurality of light-emitting unit openings B, wherein the light-emitting unit openings R are light-emitting unit openings filled with light-emitting units R, the light-emitting unit openings G are light-emitting unit openings filled with light-emitting units G, and the light-emitting unit openings B are light-emitting unit openings filled with light-emitting units B.

[0096] The light-emitting unit openings can be divided into a first light-emitting unit opening row and a second light-emitting unit opening row according to the arrangement of the light-emitting unit openings. The first light-emitting unit opening row includes two types of light-emitting unit openings, and each type of light-emitting unit opening has a plurality of light-emitting unit openings in the first opening row. The two types of light-emitting unit openings in the first light-emitting unit opening row are arranged alternately, and the same type of light-emitting unit openings are arranged alternately. Similarly, the second light-emitting unit opening row also includes two types of light-emitting unit openings, and each type of light-emitting unit opening has a plurality of light-emitting unit openings in the second opening row. The two types of light-emitting unit openings in the second light-emitting unit opening row are arranged alternately, and the same type of light-emitting unit openings are arranged alternately. The type of one light-emitting unit opening in the first light-emitting unit opening row is the same as the type of one light-emitting unit opening in the second light-emitting unit opening row. In other words, assuming that there are three types of light-emitting unit openings, respectively referred to as the first reflective unit opening, the second light-emitting unit opening, and the third light-emitting unit opening, then the first light-emitting unit opening row alternately and alternately arranges a plurality of first light-emitting unit openings and a plurality of second light-emitting unit openings, and the second light-emitting unit opening row alternately and alternately arranges a plurality of second light-emitting unit openings and a plurality of third light-emitting unit openings.

[0097] Assuming that the first light emitting unit opening is the light emitting unit opening R, the second light emitting unit opening is the light emitting unit opening G, and the third light emitting unit opening is the light emitting unit opening B, then Figure 8 As shown, the first light emitting opening row includes a plurality of light emitting unit openings R and a plurality of light emitting unit openings G that are arranged alternately and at intervals, and the second light emitting unit opening row includes a plurality of light emitting unit openings B and a plurality of light emitting unit openings G that are arranged alternately and at intervals.

[0098] Assuming that the first light emitting unit opening is the light emitting unit opening R, the second light emitting unit is the light emitting unit opening B, and the third light emitting unit opening is the light emitting unit opening G, then the first light emitting unit opening row alternately and alternately arranges multiple light emitting unit openings R and multiple light emitting unit openings B, and the second light emitting unit opening row alternately and alternately arranges multiple light emitting unit openings B and multiple light emitting unit openings G.

[0099] The blocking layer 820 includes a plurality of first-type blocking portions 821 , a plurality of second-type blocking portions 822 , and a plurality of third-type blocking portions 823 .

[0100] The first type of blocking portion 821 is located on the retaining wall between two adjacent light-emitting unit openings in the first light-emitting unit opening row. As described above, the first light-emitting opening row includes a plurality of light-emitting unit openings R and a plurality of light-emitting unit openings G that are alternately and spaced apart. In other words, in the first light-emitting unit opening row, the light-emitting unit opening R is adjacent to the light-emitting unit opening G. Therefore, in the first light-emitting unit opening row, the first type of blocking portion 821 is provided on the retaining wall between the adjacent light-emitting unit openings R and G.

[0101] The second type of blocking portion 822 is located on the retaining wall between two adjacent light emitting unit openings in the second light emitting unit opening row. As described above, the second light emitting unit opening row includes a plurality of light emitting unit openings B and a plurality of light emitting unit openings G that are alternately and spaced apart. In other words, in the second light emitting unit opening row, the light emitting unit opening B is adjacent to the light emitting unit opening G. Therefore, in the second light emitting unit opening row, the second type of blocking portion 822 is provided on the retaining wall between the adjacent light emitting unit openings B and the light emitting unit openings G.

[0102] like Figure 8 As shown, the display panel 800 includes a plurality of first light-emitting opening rows and a plurality of second light-emitting opening rows. The plurality of first light-emitting opening rows and the plurality of second light-emitting opening rows are arranged alternately and at intervals. In other words, the first light-emitting opening row is adjacent to the second light-emitting opening row. The third type blocking portion 823 is located on the retaining wall between the first light-emitting opening row and the second light-emitting opening row.

[0103] In some embodiments, the first type of blocking portion 821, the second type of blocking portion 822, and the third type of blocking portion 823 have different sizes. Figure 8 As shown, each of the two sides of the third type blocking portion 823 includes two light emitting unit openings. In other words, the length of the third type blocking portion 823 is greater than the sum of the lengths of two adjacent light emitting unit openings and the PDL interval between the light emitting unit openings.

[0104] Assume that the length of a side of the first type blocking portion 821 adjacent to the light emitting unit opening G is W. st1 The length of a side of the light emitting unit opening G adjacent to the first type blocking portion 821 is recorded as W g1 In some embodiments, W st1 Equal to W g1 If the shape of the first type blocking portion 821 is not a quadrilateral (eg, a circle or an ellipse), then st1 The length of a side of the circumscribed rectangle of the first type blocking portion 821 adjacent to the light emitting unit opening G may be set to be equal to the length of the side of the circumscribed rectangle of the first type blocking portion 821 adjacent to the light emitting unit opening G. Similarly, if the shape of the light emitting unit opening G is not a quadrilateral (eg, a circle or an ellipse), then W g1 It may be the length of a side of the circumscribed rectangle of the light emitting unit opening G adjacent to the first type blocking portion 821 .

[0105] Assume that the length of a side of the second type blocking portion 822 adjacent to the light emitting unit opening G is L st2 The length of a side of the light emitting unit opening G adjacent to the second type blocking portion 822 is recorded as L g2 .L st2 Equal to L g2If the shape of the second type blocking portion 822 is not a quadrilateral (eg, a circle or an ellipse), then L st1 It can be the length of a side of the circumscribed rectangle of the second type blocking portion 822 adjacent to the light emitting unit opening G. Similarly, if the shape of the light emitting unit opening G is not a quadrilateral (eg, a circle or an ellipse), then L g2 It may be the length of a side of the circumscribed rectangle of the light emitting unit opening G adjacent to the second-type blocking portion 822 .

[0106] In other embodiments, W st1 With W g1 They may also be unequal, and / or L st2 With L g2 may not be equal. In other words, W st1 With W g1 The relationship between L st2 With L g2 The relationship may be one of the following four situations:

[0107] Case 1: W st1 =W g1 , and L st2 =L g2 ;

[0108] Case 2: W st1 =W g1 , and L st2 ≠L g2 ;

[0109] Case 3: W st1 ≠W g1 , and L st2 =L g2 ;

[0110] Case 4: W st1 ≠W g1 , and L st2 ≠L g2 .

[0111] In some embodiments, W st1 Can be greater than W g1 .

[0112] In some embodiments, L st2 Can be greater than L g2 .

[0113] Fig. 9 is a cross-sectional view of the display panel. Fig. 9 The cross-sectional view of the display panel shown is taken along Figure 8 The cross-sectional view is obtained along the section line AA' shown.

[0114] like Fig. 9 As shown, blocking parts are arranged on the retaining walls on both sides of the opening of each light-emitting unit.

[0115] By utilizing the blocking portion disposed on the retaining wall, the width of the shadow area can be effectively reduced.

[0116] Fig.10 A schematic diagram showing a shaded area with and without a blocking portion is shown.

[0117] like Fig.10 As shown, shadow area 1 is the shadow area of ​​the display panel with the blocking portion, and shadow area 2 is the shadow area of ​​the display panel without the blocking portion. Obviously, the width W1 of the shadow area 1 of the display panel with the blocking portion is smaller than the width W2 of the shadow area of ​​the display panel without the blocking portion. It can be seen that by setting the blocking portion, the width of the shadow area can be effectively reduced, thereby reducing the probability of light-emitting units of different colors being evaporated to the same area. It can be understood that, Fig.10 The shadow area 1 and the shadow area 2 shown are the first shadow areas mentioned in the above embodiment. Fig.10 The top of the blocking portion, the edge of the blocking portion and the edge of the retaining wall shown may also include a second shadow area. However, since the second shadow area does not cause color mixing, Fig.10 The second shadow area is not shown in FIG.

[0118] The width of the shaded area is related to the distance from the FMM to the stopper, SW and SH.

[0119] When a blocking layer is provided, the width of the outer shadow area satisfies the following formula:

[0120] W OS =D FMM_SS / tanθ+SW, (Formula 1.1)

[0121] Among them, W OS Indicates the width of the outer shadow area, D FMM_SS represents the distance from FMM to the stopper, SW represents the step width, and θ represents the deposition angle.

[0122] When a blocking layer is provided, the width of the inner shadow area satisfies the following formula:

[0123] W IS =(SH+D FMM_SS ) / tanθ, (Formula 1.2)

[0124] Among them, W IS Indicates the width of the inner shadow area, D FMM_SS represents the distance from the FMM to the stopper, SH represents the step height, and θ represents the evaporation angle.

[0125] If no blocking layer is set, the width of the outer shadow area satisfies the following formula:

[0126] W OS =D FMM_PDL / tanθ+SW, (Formula 2.1)

[0127] Among them, W OS Indicates the width of the outer shadow area, D FMM_PDL represents the distance from FMM to the top of the retaining wall, SW represents the step width, and θ represents the evaporation angle.

[0128] If no blocking layer is set, the width of the inner shadow area satisfies the following formula:

[0129] W IS =(SH+D FMM_PDL ) / tanθ, (Formula 2.2)

[0130] Among them, W IS Indicates the width of the inner shadow area, D FMM_PDL represents the distance from FMM to the top of the retaining wall, SH represents the step height, and θ represents the evaporation angle.

[0131] Before setting the blocking layer, the distance between FMM and the display panel is equivalent to the distance between FMM and the retaining wall, which is D FMM_PDL When the blocking layer is set, the distance between the FMM and the display panel is equivalent to the distance between the FMM and the blocking part, which is D FMM_SS . D FMM_SS <D FMM_PDL Therefore, the width of the outer shadow area with the blocking layer is smaller than that without the blocking layer, and the width of the inner shadow area with the blocking layer is smaller than that without the blocking layer. Therefore, the width of the shadow area with the blocking layer is smaller than that without the blocking layer.

[0132] The height of the stopper (e.g. Fig. 9 The Hs shown in can be greater than 0 micrometers (μm). For example, in some embodiments, the height of the blocking portion can be greater than or equal to 0.1 μm and less than or equal to 3 μm. For another example, in some embodiments, the height of the blocking portion can be greater than or equal to 0.3 μm and less than or equal to 1.5 μm. For another example, in some embodiments, the height of the blocking portion can be 0.1 μm, 0.3 μm, 0.5 μm, 1 μm, 1.5 μm, or, 2.0 μm.

[0133] Table 1 shows the influence of the blocking parts with different heights on the sub-pixel size, light-emitting area, shadow area width, etc.

[0134] Table 1

[0135] No blocking department 0.5μm 1μm 1.5μm Stop height (μm) 0 0.5 1 1.5 Evaporation angle (degrees) 65 65 65 65 Step height (μm) 4.5 4.5 4.5 4.5 Step width(μm) 0.5 0.5 0.5 0.5 Width of inner shadow area (μm) 3.03 2.80 2.56 2.33 Width of outer shadow area (μm) 1.43 1.20 0.97 0.73 Width of total shadow area (μm) 4.46 4.00 3.53 3.06 PDL interval change (μm) - +0.93 +1.87 +2.80 Sub-pixel side length (μm) 20 20.93 21.87 22.28 <![CDATA[Emitting area (μm 2 )]]> 400 438 478 520 Increase ratio of opening ratio - 10％ 20％ 30％

[0136] As shown in Table 1, when no blocking portion is provided, the width of the inner shadow area is 3.03 μm, the width of the outer shadow area is 4.46 μm, the width of the total shadow area is 4.46 μm (the width of the total shadow area = the width of the inner shadow area + the width of the outer shadow area, that is, 4.46 = 3.03 + 1.43), the side length of the sub-pixel (that is, the side length of the pixel area) is 20 μm, and the luminous area is 400 μm 2 (Assume the shape of the pixel area is a square).

[0137] It can be seen from Table 1 that, when the evaporation angle, step height and step width remain unchanged, the higher the height of the blocking portion, the smaller the width of the shadow area.

[0138] In addition, the PDL interval is related to the width of the total shadow area. Generally speaking, the PDL interval and the width of the total shadow area satisfy the following relationship:

[0139] W PDL_gap =2×(Mft_Err+W S ), (Formula 3.1)

[0140] Among them, W PDL_gap represents the PDL interval, Mft_Err represents the total process error, W S It indicates the width of the total shadow area. It can be seen from Table 1 that when the width of the total shadow area is reduced from 4.46 μm to 4.00 μm, the PDL interval increases by 0.93 μm. The length of the increased PDL interval is about twice the width of the reduced total shadow area.

[0141] Therefore, the smaller the width of the total shadow area, the larger the PDL interval, the larger the sub-pixel can be, the larger the light-emitting area, and the larger the aperture ratio.

[0142] Therefore, by providing the blocking portion, the width of the shadow area can be effectively reduced, and the light-emitting area and the aperture ratio can be increased, so that the sub-pixel can emit more light, thereby improving the display effect of the display panel.

[0143] Fig.11 is a schematic diagram of another display panel provided according to an embodiment of the present application.

[0144] like Fig.11The display panel 1100 shown includes a pixel definition layer 1110 located on a substrate. The pixel definition layer 1110 includes a plurality of light-emitting unit openings, which include a plurality of light-emitting unit openings R, a plurality of light-emitting unit openings G, and a plurality of light-emitting unit openings B, wherein the light-emitting unit openings R are light-emitting unit openings filled with light-emitting units R, the light-emitting unit openings G are light-emitting unit openings filled with light-emitting units G, and the light-emitting unit openings B are light-emitting unit openings filled with light-emitting units B.

[0145] like Fig.11 As shown, one light emitting unit opening B is adjacent to four light emitting unit openings G, and one light emitting unit opening R is adjacent to four light emitting unit openings G in the display panel 1100 .

[0146] like Fig.11 As shown, the blocking layer 1120 includes two types of blocking portions, namely, a first type blocking portion 1121 and a second type blocking portion 1122. The first type blocking portion 1121 is located on the blocking wall between the light emitting unit opening G and the light emitting unit opening R, and the second type blocking portion 1122 is located on the blocking wall between the light emitting unit opening B and the light emitting unit opening G.

[0147] In some embodiments, the first type blocking portion 1121 and the second type blocking portion 1122 are different in shape and size.

[0148] In other embodiments, at least one of the shape and size of the first type blocking portion 1121 and the second type blocking portion 1122 are the same.

[0149] In other embodiments, the first type blocking portion 1121 and the second type blocking portion 1122 are the same in shape and size.

[0150] In some embodiments, the side length of the first type blocking portion 1121 may be greater than or equal to the side length of the light emitting unit opening G or the light emitting unit opening R. For example, assuming that the side length of the first type blocking portion 1211 adjacent to the light emitting unit opening G is Leg1, the side length of the first type blocking portion adjacent to the light emitting unit opening R is Ler1, the side length of the side of the light emitting unit opening G adjacent to the first type blocking portion 1211 is Lgs1, and the side length of the side of the light emitting unit opening R adjacent to the first type blocking portion 1211 is Lrs1.

[0151] In some embodiments, Leg1, Ler1, Lgs1, and Lrs1 satisfy the following relationship:

[0152] Leg1=Ler1≥max(Lgs1,Lrs1),

[0153] Where max(Lgs1, Lrs1) represents the larger value of Lgs1 and Lrs1. In other words, Leg1 is equal to Ler1 and is greater than or equal to the larger value of Lgs1 and Lrs1.

[0154] In some other embodiments, Leg1, Ler1, Lgs1 and Lrs1 satisfy the following relationship:

[0155] Leg1=Ler1≥min(Lgs1,Lrs1),

[0156] Where min(Lgs1, Lrs1) represents the smaller value of Lgs1 and Lrs1. In other words, Leg1 is equal to Ler1 and is greater than or equal to the smaller value of Lgs1 and Lrs1.

[0157] In some embodiments, the side length of the second type blocking portion 1122 may be greater than or equal to the side length of the light emitting unit opening G or the light emitting unit opening B. For example, assuming that the side length of the second type blocking portion 1122 adjacent to the light emitting unit opening G is Leg2, the side length of the second type blocking portion 1122 adjacent to the light emitting unit opening B is Leb, the side length of the side of the light emitting unit opening G adjacent to the second type blocking portion 1122 is Lgs2, and the side length of the side of the light emitting unit opening B adjacent to the first type blocking portion 1211 is Lbs2.

[0158] In some embodiments, Leg2, Leb2, Lgs2, and Lbs2 satisfy the following relationship:

[0159] Leg2=Leb2≥max(Lgs2,Lbs2),

[0160] Wherein max(Lgs2, Lbs2) represents the larger value of Lgs2 and Lbs2. In other words, Leg2 is equal to Leb2 and is greater than or equal to the larger value of Lgs2 and Lbs2.

[0161] In some other embodiments, Leg2, Leb2, Lgs2 and Lbs2 satisfy the following relationship:

[0162] Leg1=Ler1≥min(Lgs2,Lbs2),

[0163] Where min(Lgs2, Lbs2) represents the larger value of Lgs2 and Lbs2. In other words, Leg2 is equal to Leb2 and is greater than or equal to the smaller value of Lgs2 and Lbs2.

[0164] It is understandable that the above-mentioned size relationship among Leg1, Ler1, Lgs1 and Lrs1 is only a possible implementation method and not a limitation of the technical solution of the present application. The size relationship among Leg1, Ler1, Lgs1 and Lrs1 can also be other. For example, Leg1>Ler1≥min(Lgs1,Lrs1), etc. Similarly, the above-mentioned size relationship among Leg2, Leb2, Lgs2 and Lbs2 is only a possible implementation method and not a limitation of the technical solution of the present application.

[0165] Fig.12 is a schematic diagram of a partial area of ​​the display panel 1100 .

[0166] Fig.12 (a) shows a light emitting unit opening B (ie, the light emitting unit opening 1211 ) and four light emitting unit openings G adjacent to the light emitting unit opening 1211 (ie, the light emitting unit opening 1221 , the light emitting unit opening 1222 , the light emitting unit opening 1223 , and the light emitting unit opening 1224 ).

[0167] A retaining wall (not shown in the figure) is arranged between the light emitting unit opening 1211 and each adjacent light emitting unit opening G. In other words, it can be considered that four retaining walls surround the light emitting unit opening 1211, and each of the four retaining walls surrounds the other retaining walls. Fig.12 In (a), there is an opening G of a light emitting unit.

[0168] like Fig.12 As shown in (a), a blocking portion 1231 is provided on the retaining wall between the light emitting unit opening 1211 and the adjacent light emitting unit opening 1221, a blocking portion 1232 is provided on the retaining wall between the light emitting unit opening 1211 and the adjacent light emitting unit opening 1222, a blocking portion 1233 is provided on the retaining wall between the light emitting unit opening 1211 and the adjacent light emitting unit opening 1223, and a blocking portion 1234 is provided on the retaining wall between the light emitting unit opening 1211 and the adjacent light emitting unit opening 1224.

[0169] As described above, the light emitting unit opening 1211 is the light emitting unit opening B, and the light emitting unit openings 1221, 1222, 1223, and 1224 are the light emitting unit openings G. In other words, the two sides of the retaining wall in the area 1130 are the light emitting unit openings B and the light emitting unit openings G, respectively, so the blocking portions 1231, 1232, 1233, and 1234 are the second type of blocking portions 1122.

[0170] In summary, Fig.12The light-emitting unit opening B shown in (a) is adjacent to four light-emitting unit openings G. Each of the four light-emitting unit openings G corresponds to a retaining wall. In other words, the four light-emitting unit openings G correspond to the four retaining walls one by one. Each of the four retaining walls is used to separate the corresponding light-emitting unit opening G and the light-emitting unit opening B. A second type blocking portion 1122 can be set on each of the four retaining walls. Therefore, Fig.12 (a) includes four second-type blocking portions 1122.

[0171] Fig.12 (b) shows one light emitting unit opening R (ie, light emitting unit opening 1241 ) and four light emitting unit openings G adjacent to the light emitting unit opening 1241 , namely, the light emitting unit opening 1251 (the light emitting unit opening 1252 , the light emitting unit opening 1253 , and the light emitting unit opening 1254 ).

[0172] A retaining wall (not shown in the figure) is arranged between the light emitting unit opening 1241 and each adjacent light emitting unit opening G. In other words, it can be considered that four retaining walls surround the light emitting unit opening 1241, and each of the four retaining walls surrounds the other retaining walls. Fig.12 In (b), there is an opening G of a light emitting unit.

[0173] like Fig.12 As shown in (b), a blocking portion 1261 is provided on the retaining wall between the light emitting unit opening 1241 and the adjacent light emitting unit opening 1251, a blocking portion 1262 is provided on the retaining wall between the light emitting unit opening 1241 and the adjacent light emitting unit opening 1252, a blocking portion 1263 is provided on the retaining wall between the light emitting unit opening 1241 and the adjacent light emitting unit opening 1253, and a blocking portion 1264 is provided on the retaining wall between the light emitting unit opening 1241 and the adjacent light emitting unit opening 1254.

[0174] As described above, the light emitting unit opening 1241 is the light emitting unit opening B, and the light emitting unit openings 1251, 1252, 1253, and 1254 are the light emitting unit openings G. In other words, the two sides of the retaining wall in the area 1140 are the light emitting unit openings B and the light emitting unit openings G, respectively, so the blocking portions 1261, 1262, 1263, and 1264 are the first type of blocking portions 1121.

[0175] In summary, Fig.12The light-emitting unit opening R shown in (a) is adjacent to four light-emitting unit openings G. Each of the four light-emitting unit openings G corresponds to a retaining wall. In other words, the four light-emitting unit openings G correspond to the four retaining walls one by one. Each of the four retaining walls is used to separate the corresponding light-emitting unit opening G and the light-emitting unit opening R. A first type blocking portion 1121 can be set on each of the four retaining walls. Therefore, Fig.12 (a) includes four first-type blocking portions 1121 .

[0176] Along Fig.11 The cross-sectional view obtained by the section line AA' shown is similar to Fig. 9 The cross-sectional views shown are similar and will not be described again for brevity.

[0177] Fig.13 is a schematic diagram of another display panel provided according to an embodiment of the present application.

[0178] like Fig.13 The display panel 1300 shown includes a pixel definition layer 1310 located on a substrate. The pixel definition layer 1310 includes a plurality of light-emitting unit openings, which include a plurality of light-emitting unit openings R, a plurality of light-emitting unit openings G, and a plurality of light-emitting unit openings B, wherein the light-emitting unit openings R are light-emitting unit openings filled with light-emitting units R, the light-emitting unit openings G are light-emitting unit openings filled with light-emitting units G, and the light-emitting unit openings B are light-emitting unit openings filled with light-emitting units B.

[0179] like Fig.13 The display panel 1300 shown includes a blocking layer 1320 located on a substrate pixel definition layer 1310. The blocking layer 1320 includes a plurality of blocking layer openings surrounded by blocking portions, the plurality of blocking layer openings corresponding to a plurality of light emitting unit openings one by one, each blocking layer opening being located above a corresponding light emitting unit opening, and each blocking layer opening being larger than a corresponding light emitting unit opening.

[0180] Along Fig.13 The cross-sectional view obtained by the section line AA' shown is similar to Fig. 9 The cross-sectional views shown are similar and will not be described again for brevity.

[0181] Fig.14 is a schematic diagram of another display panel provided according to an embodiment of the present application.

[0182] like Fig.14The display panel 1400 shown includes a pixel definition layer 1410 located on a substrate. The pixel definition layer 1410 includes a plurality of light-emitting unit openings, which include a plurality of light-emitting unit openings R, a plurality of light-emitting unit openings G, and a plurality of light-emitting unit openings B, wherein the light-emitting unit openings R are light-emitting unit openings filled with light-emitting units R, the light-emitting unit openings G are light-emitting unit openings filled with light-emitting units G, and the light-emitting unit openings B are light-emitting unit openings filled with light-emitting units B.

[0183] like Fig.14 The display panel 1400 shown includes a blocking layer 1420 located on a substrate pixel definition layer 1410. The blocking layer 1420 includes a plurality of blocking layer openings surrounded by blocking portions, the plurality of blocking layer openings corresponding to a plurality of light emitting unit openings one by one, each blocking layer opening being located above a corresponding light emitting unit opening, and each blocking layer opening being larger than the corresponding light emitting unit opening.

[0184] Along Fig.14 The cross-sectional view obtained by the section line AA' shown is similar to Fig. 9 The cross-sectional views shown are similar and will not be described again for brevity.

[0185] It can be seen that Fig.14 The display panel shown is Fig.13 The display panels shown are similar except that Fig.14 The width of the blocking portion of the blocking layer is greater than Fig.13 The blocking portion width of the blocking layer.

[0186] In some embodiments, a protrusion is further disposed in the opening of the light emitting unit, and the light emitting unit is disposed on the protrusion.

[0187] After the protrusion is added, the distance between the pixel area and the FMM can be reduced, so that the size of the pixel area can be increased and the light emitting area can be increased.

[0188] The height of the stopper (e.g. Fig.15 The Hs shown in FIG is greater than 0 micrometers (μm). For example, in some embodiments, the height of the blocking portion may be greater than or equal to 0.1 μm and less than or equal to 1.5 μm. For another example, in some embodiments, the height of the blocking portion may be greater than or equal to 0.3 μm and less than or equal to 1.5 μm. For another example, in some embodiments, the height of the blocking portion may be 0.1 μm, 0.3 μm, 0.6 μm, 0.9 μm, or 1 μm.

[0189] Fig.15 FIG. 1 is a cross-sectional view of another display panel provided according to an embodiment of the present application. Fig.15As shown, a protrusion is arranged in each light-emitting unit opening, the protrusion is located above the substrate, and the pixel area including the light-emitting unit is located above the protrusion.

[0190] Table 2 shows the effects of protrusions and blocking portions of different heights on sub-pixel size, light-emitting area, shadow area width, etc.

[0191] Table 2

[0192]

[0193] As shown in Table 2, when no blocking portion is provided, the width of the inner shadow area is 3.03 μm, the width of the outer shadow area is 4.46 μm, the width of the total shadow area is 4.46 μm (the width of the total shadow area = the width of the inner shadow area + the width of the outer shadow area, that is, 4.46 = 3.03 + 1.43), the side length of the sub-pixel (that is, the side length of the pixel area) is 20 μm, and the luminous area is 400 μm 2 (Assume the shape of the pixel area is a square).

[0194] As shown in Table 2, after the 0.3μm protrusion is set, the protrusion can increase the sub-pixel side length by 1.04μm. At the same time, the 0.5μm stopper can increase the PDL interval by 0.93μm. In this way, the sub-pixel side length can be increased by 1.97μm. Therefore, the luminous area is increased from 400μm 2 Increased to 483 μm 2 Compared with the case without protrusions and blocking parts, the light emitting area is increased by 83μm 2 , the aperture ratio increased by 21%. Compared with Table 1, when only a 0.5μm blocking portion is set, the light-emitting area is 438μm 2 It can be seen that the simultaneous provision of the blocking portion and the protruding portion can further increase the light-emitting area of ​​the sub-pixel, thereby correspondingly increasing the aperture ratio of the display panel.

[0195] Fig.16 1 is a schematic diagram of another display panel provided according to an embodiment of the present application. The display panel 1600 includes a pixel definition layer 1610 located on a substrate. The pixel definition layer 1610 includes a plurality of light-emitting unit openings, the plurality of light-emitting unit openings including a plurality of light-emitting unit openings R, a plurality of light-emitting unit openings G, and a plurality of light-emitting unit openings B, wherein the light-emitting unit openings R are light-emitting unit openings filled with light-emitting unit R, the light-emitting unit openings G are light-emitting unit openings filled with light-emitting unit G, and the light-emitting unit openings B are light-emitting unit openings filled with light-emitting unit B.

[0196] The display panel 1600 further includes a blocking layer 1620 . The blocking layer 1620 includes a plurality of first type blocking portions 1621 , a plurality of second type blocking portions 1622 , and a plurality of third type blocking portions 1623 .

[0197] like Fig.16 The positional relationship between the pixel definition layer 1610, the light emitting unit opening and the blocking layer 1620 in the display panel 1600 is similar to Figure 8 The display panel 800 shown is similar and will not be described again for the sake of brevity.

[0198] Different from the display panel 800, the display panel 1600 further includes a spacer 1631. Fig.16 As shown, the spacer 1631 is above the blocking portion. Fig.16 It can be seen that the distribution density of the spacer 1631 is less than the distribution density of the blocking portion. Fig.16 As shown, a blocking portion is provided on the blocking wall around each light emitting unit opening, and the spacing portion is only located on the blocking portion of the blocking wall around a portion of the light emitting unit openings.

[0199] In some embodiments, the width of the spacer portion may be smaller than the width of the blocking portion. In other embodiments, the width of the spacer portion is equal to the width of the blocking portion.

[0200] In some embodiments, the height of the spacer portion may be greater than the height of the blocking portion. In other embodiments, the height of the spacer portion is equal to the height of the blocking portion.

[0201] Fig.17 is a cross-sectional view of the display panel. Fig.17 The cross-sectional view of the display panel shown is taken along Fig.17 The cross-sectional view is obtained along the section line AA' shown.

[0202] like Fig.17 As shown in FIG. 1 , the cross section of the blocking portion is a trapezoid, and the cross section of the spacing portion located above the blocking portion is also a trapezoid. For ease of description, the cross section of the blocking portion may be referred to as a first trapezoid, and the cross section of the spacing portion located above the blocking portion may be referred to as a second trapezoid. Fig.17 As shown, the length of the upper base of the first trapezoid is smaller than the length of the lower base of the second trapezoid, and the height of the first trapezoid is smaller than the height of the second trapezoid.

[0203] Understandably, Fig.17 The cross-sectional shape of the blocking portion and the spacer shown is only an example, and is not a limitation on the cross-sectional shape of the blocking portion and the spacer. The cross-sectional shape of the blocking portion and the spacer may also be other shapes. For example, the cross-sectional shape of the blocking portion and the spacer may be a rectangle, a right-angled trapezoid, etc., and the cross-sectional shape of the blocking portion and the spacer may also be an irregular shape. In addition, the cross-sectional shape of the blocking portion may be the same as or different from the cross-sectional shape of the spacer. For example, in some embodiments, the cross-sectional shape of the blocking portion is a rectangle, and the cross-sectional shape of the spacer is a trapezoid.

[0204] Similar, such as Fig.13 and Fig.14 The display panel shown in FIG. 1 may also be provided with a spacer located above the blocking layer. The specific arrangement of the spacer is similar to that of FIG. Fig.16 and Fig.17 The spacers shown are similar and will not be described again for brevity.

[0205] Fig.18 is an interface diagram of another display panel provided according to an embodiment of the present application. Fig.18 The display panel shown in the figure has a protrusion on the substrate, and the pixel area including the light-emitting unit is located on the protrusion. It can be seen that compared with the above embodiment, Fig.18 The display panel shown is not provided with a blocking portion and a spacing portion on the retaining wall.

[0206] Table 3 shows the effects of protrusions of different heights on sub-pixel size, light-emitting area, shadow area width, etc.

[0207] Table 3

[0208] No protrusion 0.3μm protrusion 0.6μm protrusion Protrusion height (μm) 0 0.3 0.6 Sub-pixel side length (μm) 20 21.04 22.08 <![CDATA[Emitting area (μm 2 )]]> 400 443 487 Increase ratio of opening ratio 11％ 22％

[0209] As shown in Table 3, when no blocking portion is provided, the side length of the sub-pixel (i.e., the side length of the pixel area) is 20 μm, and the light emitting area is 400 μm. 2 (Assume the shape of the pixel area is a square).

[0210] As shown in Table 3, after the 0.3 μm protrusion is provided, the protrusion can increase the side length of the sub-pixel by 1.04 μm. Therefore, the light emitting area increases from 400 μm 2 Increased to 443 μm 2 Compared with the case without protrusions and blocking parts, the light emitting area is increased by 43μm 2 , the opening rate increased by 11%.

[0211] Fig.19 is an interface diagram of another display panel provided according to an embodiment of the present application. Fig.18 Similar, such as Fig.19 The display panel shown is provided with a protrusion on a substrate, and a pixel area including a light emitting unit is located on the protrusion. Fig.19 The display panel shown does not have a blocking portion on the blocking wall, but a spacing portion is provided on part of the blocking wall. Fig.19 The spacers of the display panel shown are also dispersedly arranged in the display panel. In other words, not all the retaining walls around the light-emitting unit openings are provided with spacers.

[0212] An embodiment of the present application also provides a mask, which is used to manufacture the display panel in the above embodiment.

[0213] Fig. 20 is a schematic diagram of a mask provided according to an embodiment of the present application. Fig. 20 As shown, the mask 2000 includes a plurality of first mask portions, a second mask portion, and a plurality of third mask portions.

[0214] The first mask portion is used to manufacture the light emitting unit opening in the display panel. Fig. 20 The mask 2000 shown can be used to manufacture Figure 8 The display panel 800 is shown. Figure 8 The display panel 800 shown includes a plurality of light emitting unit openings R, a plurality of light emitting unit openings G, and a plurality of light emitting unit openings B. The shapes / sizes of the light emitting unit openings for filling light emitting units of different colors are also different. Fig. 20 As shown, the mask 2000 includes first mask portions of different shapes / sizes, and the first mask portions of different shapes / sizes can be used to form different light-emitting unit openings. Fig. 20 As shown, the first mask part may include multiple first mask parts R, multiple first mask parts G and multiple first mask parts B, wherein the first mask part R is used to form the light emitting unit opening R, the first mask part G is used to form the light emitting unit opening G, and the first mask part B is used to form the light emitting unit opening B.

[0215] The second mask portion is used to form a retaining wall in the display panel.

[0216] The third mask portion is used to form a blocking layer in the display panel. Fig. 20 As shown, the third mask portion may include three types of mask portions. The three types of mask portions may be respectively referred to as: third mask portion - type 1 (i.e. Fig. 20 The third mask part 1 in the figure), the third mask part-type 2 (i.e. Fig. 20 The third mask part 2 in the figure), the third mask part-type three (i.e. Fig. 20 The third mask portion 3 in FIG. Figure 8 The blocking layer of the display panel shown also includes three types of blocking portions, namely, a first type of blocking portion, a second type of blocking portion, and a third type of blocking portion. The three types of third mask portions are respectively used to form the three types of blocking portions, wherein the third mask portion-type one is used to generate the first type of blocking portion, the third mask portion-type two is used to generate the second type of blocking portion, and the third mask portion-type three is used to generate the third type of blocking portion. The relationship between the size and position of the third mask portion and the first mask portion is the same as the relationship between the size and position of the blocking portion and the light-emitting opening unit.

[0217] The third mask part, the second mask part and the first mask part have different light transmittances. The light transmittance of the third mask part is less than that of the second mask part, and the light transmittance of the second mask part is less than that of the first mask part. In other words, the light transmittance of the third mask part is the smallest, and the light transmittance of the first mask part is the largest.

[0218] As described above, the first mask portion also includes three different types of mask portions (i.e., the first mask portion R, the first mask portion G, and the first mask portion B). In some embodiments, the three different types of first mask portions have the same transmittance. In other embodiments, the three different types of first mask portions have different transmittances. For example, the transmittance of the first mask portion R is greater than the transmittance of the first mask portion G, and the transmittance of the first mask portion G is greater than the transmittance of the first mask portion B. The transmittance of the first mask portion with the lowest transmittance among the three types of first mask portions is greater than the transmittance of the second mask portion.

[0219] Similarly, the third mask portion also includes three different types of mask portions (i.e., the third mask portion-type one, the third mask portion-type two, and the third mask portion-type three). In some embodiments, the three different types of third mask portions have the same transmittance. In other embodiments, the three different types of third mask portions have different transmittances. For example, the transmittance of the third mask portion-type one is less than the transmittance of the third mask portion-type two, and the transmittance of the third mask portion-type two is less than the transmittance of the third mask portion-type three. The transmittance of the third mask portion with the largest transmittance among the three types of third mask portions is less than the transmittance of the second mask portion.

[0220] Fig.21 is the cross-sectional view of the mask. Fig.21 The cross-sectional view of the mask shown is taken along the Fig. 20 The cross-sectional view is obtained along the section line AA' shown. Fig.21 The formation process of the blocking portion, the retaining wall and the light emitting unit opening is also shown.

[0221] like Fig.21 As shown in (a), when light is irradiated to the mask portion, due to the different transmittances of different mask portions, the light passes through different mask portions and reaches the material used to make the blocking portion, the retaining wall and the light-emitting unit opening with different light intensities.

[0222] Since the light transmittance of the first mask portion is the largest, the light intensity after the light passes through the first mask portion is the largest, so the etching degree of the manufacturing material is the largest, thereby forming the following Fig.21 The light emitting unit opening shown in (b).

[0223] Since the light transmittance of the third mask portion is the smallest, the light intensity after the light passes through the third mask portion is the smallest. Therefore, the etching degree of the manufacturing material is the smallest, thereby forming a Fig.21 The blocking portion shown in (b) in FIG.

[0224] Since the transmittance of the second mask part is between the transmittance of the first mask part and the transmittance of the third mask part, the light intensity after the light passes through the second mask part is also between the light intensity through the first mask part and the light intensity through the third mask part. Therefore, the etching degree of the manufacturing material is less than the etching degree caused by the first mask part and greater than the etching degree caused by the third mask part, thereby forming the following Fig.21 The retaining wall shown in (b).

[0225] like Fig.21 As shown, the manufacturing material includes only three heights after etching, among which the blocking portion has the highest height and the light-emitting unit opening has the lowest height. Then, in some embodiments, the transmittance of the first mask portion may be 100%, and the transmittance of the third mask portion may be 0%. In other words, in some embodiments, if the mask portion only includes the first mask portion, the second mask portion, and the third mask portion, the transmittance of the first mask portion may be 100%, the transmittance of the third mask portion may be 0%, and the transmittance of the second mask portion is less than 100% and greater than 0%. Since the first mask portion does not block light, the third mask portion blocks light, and the second mask portion blocks part of the light, the first mask portion can be called a light-transmitting portion, the third mask portion can be called a light-shielding portion, and the second mask portion can be called a semi-transmitting portion.

[0226] Of course, in other embodiments, as long as the transmittance of the first mask portion is greater than the transmittance of the second mask portion, and the transmittance of the second mask portion is greater than the transmittance of the third mask portion, the transmittance of the first mask portion may be less than 100%, and / or the transmittance of the third mask portion may be greater than 0%.

[0227] Fig. 22 FIG. 1 is a schematic diagram of another mask provided according to an embodiment of the present application. Fig. 22 The mask 2200 shown can be used to make Fig.11 Display panel 1100 is shown.

[0228] Fig.23 FIG. 1 is a schematic diagram of another mask provided according to an embodiment of the present application. Fig.23 The mask 2300 shown can be used to make Fig.13 Display panel 1300 is shown.

[0229] Fig.24 FIG. 1 is a schematic diagram of another mask provided according to an embodiment of the present application. Fig.24The mask 2400 shown can be used to make Fig.14 Display panel 1400 is shown.

[0230] Fig.25 FIG. 1 is a schematic diagram of another mask provided according to an embodiment of the present application. Fig.25 The mask 2500 shown can be used to make Fig.16 Display panel 1600 is shown.

[0231] As mentioned above, Fig.16 The display panel 1600 shown is similar to Figure 8 The display panel 800 is similar to the display panel 800 shown. The difference between the display panel 800 and the display panel 1600 is that, compared with the display panel 800, the display panel 1600 further includes a spacer. Accordingly, the structures of the mask 2500 used to make the display panel 1600 and the mask 2000 used to make the display panel 800 are also similar. The difference between the mask 2000 and the mask 2500 is that, compared with the mask 2000, the mask 2500 further includes a fourth mask part for forming a spacer.

[0232] Fig.26 is the cross-sectional view of the mask. Fig.26 The cross-sectional view of the mask shown is taken along the Fig.25 The cross-sectional view is obtained along the section line AA' shown. Fig.26 The formation process of the blocking portion, the retaining wall, the spacer and the light emitting unit opening is also shown.

[0233] like Fig.26 As shown in (a), when light is irradiated to the mask portion, due to the different transmittances of different mask portions, the light passes through different mask portions and reaches the materials used to make the blocking portion, the retaining wall, the spacer portion and the light-emitting unit opening with different light intensities.

[0234] Since the light transmittance of the first mask portion is the largest, the light intensity after the light passes through the first mask portion is the largest, so the etching degree of the manufacturing material is the largest, thereby forming the following Fig.26 The light emitting unit opening shown in (b).

[0235] Since the light transmittance of the fourth mask portion is the smallest, the light intensity after the light passes through the third mask portion is the smallest. Therefore, the etching degree of the manufacturing material is the smallest, thereby forming a Fig.26 The spacer shown in (b).

[0236] Since the transmittance of the second mask portion is lower than that of the first mask portion, the light intensity after the light passes through the second mask portion is lower than the light intensity after the light passes through the first mask portion. Fig.26 The retaining wall shown in (b).

[0237] Since the transmittance of the third mask portion is lower than that of the second mask portion, the light intensity after the light passes through the third mask portion is lower than the light intensity after the light passes through the second mask portion. Fig.26 The blocking portion shown in (b) in FIG.

[0238] like Fig.26 As shown, the manufacturing material includes four heights after etching, among which the height of the spacer is the highest and the opening of the light-emitting unit is the lowest. Then, in some embodiments, the transmittance of the first mask part can be 100%, and the transmittance of the fourth mask part can be 0%. In other words, in some embodiments, if the mask part includes the first mask part, the second mask part, the third mask part and the fourth mask part, then the transmittance of the first mask part can be 100%, the transmittance of the fourth mask part can be 0%, the transmittance of the second mask part and the transmittance of the third mask part are less than 100% and greater than 0%, and the transmittance of the second mask part is greater than the transmittance of the third mask part. Since the first mask part does not block light, the fourth mask part blocks light, and the second mask part and the third mask part block part of the light, the first mask part can be called a light-transmitting part, the fourth mask part can be called a light-shielding part, the second mask part can be called a first semi-transmitting part, and the third mask part can be called a second semi-transmitting part.

[0239] Of course, in other embodiments, as long as the transmittance of the first mask portion is greater than the transmittance of the second mask portion, the transmittance of the second mask portion is greater than the transmittance of the third mask portion, and the transmittance of the third mask portion is greater than the transmittance of the fourth mask portion, the transmittance of the first mask portion may be less than 100%, and / or the transmittance of the fourth mask portion may be greater than 0%.

[0240] For mask portions whose transmittance is not 100% or 0%, a gray tone mask or a half tone mask may be used.

[0241] In some embodiments, if the mask includes multiple mask portions whose transmittance is not 100% and 0%, then these mask portions can be implemented using the same technology. For example, assuming that the mask includes a first mask portion, a second mask portion, a third mask portion, and a fourth mask portion, and the transmittance of the first mask portion can be 100%, and the transmittance of the fourth mask portion can be 0%, then the second mask portion and the third mask portion can be implemented using a gray tone mask, or the second mask portion and the third mask portion can be implemented using a half tone mask.

[0242] In other embodiments, if the mask includes multiple mask portions whose transmittance is not 100% and 0%, then these mask portions can be implemented using different technologies. For example, assuming that the mask includes a first mask portion, a second mask portion, a third mask portion, and a fourth mask portion, and the transmittance of the first mask portion can be 100%, and the transmittance of the fourth mask portion can be 0%, then the second mask portion can be implemented using a gray tone mask, and the third mask portion can be implemented using a half tone mask.

[0243] The specific method of using the mask to manufacture the display panel is the same as the existing method, and for the sake of brevity, it will not be repeated here.

[0244] An embodiment of the present application further provides an electronic device, which includes the display panel as described in the above embodiment.

[0245] The electronic device may be a display device, such as a monitor, a television, a car display screen, a dashboard, etc. In this case, the electronic device may also include a drive circuit, a power supply, etc. The drive circuit is used to drive the display panel to display, and the power supply provides the display panel with the power supply for operation.

[0246] The electronic device may also be a computer device with a display panel, for example, a laptop computer, a tablet computer, etc. In this case, the electronic device may also include a processor, a memory, an input / output device (eg, a keyboard, a speaker), etc.

[0247] The electronic device may also be other types of electronic devices with a display panel, for example, a smart speaker with a display panel, a smart panel with a display panel, etc.

[0248] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A display panel, characterized in that: The display panel comprises: Substrate, A pixel definition layer, located on the substrate, wherein the pixel definition layer has a plurality of light-emitting unit openings and retaining walls located around the light-emitting unit openings; A blocking layer is located above the retaining wall.

2. The display panel according to claim 1, characterized in that: The blocking layer includes a plurality of blocking portions, and one of the plurality of blocking portions is disposed on a retaining wall between two adjacent light emitting unit openings among the plurality of light emitting unit openings.

3. The display panel according to claim 2, characterized in that: The plurality of light emitting unit openings include: at least one first light emitting unit opening, at least one second light emitting unit opening and at least one third light emitting unit opening, The plurality of blocking portions include a plurality of first blocking portions and a plurality of second blocking portions, and the first blocking portions and the second blocking portions have different sizes. The first blocking portion is disposed on the blocking wall between the first light emitting unit opening and the second light emitting unit opening, and the second blocking portion is disposed on the blocking wall between the second light emitting unit opening and the third light emitting unit opening.

4. The method according to claim 3, characterized in that The length of the first blocking portion is greater than or equal to the first side length, and the length of the second blocking portion is greater than or equal to the second side length, wherein the first side length is the side length of a light emitting unit opening adjacent to the first blocking portion, and the second side length is the side length of a light emitting unit opening adjacent to the second blocking portion, and the first side length is not equal to the second side length.

5. The display panel according to claim 2, characterized in that: The pixel definition layer includes a plurality of first light emitting unit opening rows and a plurality of second light emitting unit opening rows, The first light emitting unit opening row has a plurality of first light emitting unit openings and a plurality of second light emitting unit openings arranged alternately and at intervals, the second light emitting unit opening row has a plurality of second light emitting unit openings and a plurality of third light emitting unit openings arranged alternately and at intervals, and the first light emitting unit opening, the second light emitting unit opening and the third light emitting unit opening are respectively provided with light emitting units of different colors, The plurality of blocking portions include a plurality of third blocking portions, a plurality of fourth blocking portions and a plurality of fifth blocking portions, and the third blocking portions, the fourth blocking portions and the fifth blocking portions have different sizes. At least one third blocking portion is provided on the retaining wall between the adjacent first light emitting unit opening row and the second light emitting unit opening row, The fourth blocking portion is provided between two adjacent light emitting unit openings of the first light emitting unit opening row; The fifth blocking portion is disposed between two adjacent light emitting unit openings in the second light emitting unit opening row.

6. The display panel according to claim 5, characterized in that: The width of the fourth blocking portion is greater than or equal to the width of an adjacent light emitting unit opening, and / or the length of the fifth blocking portion is greater than or equal to the length of an adjacent light emitting unit opening.

7. The display panel according to claim 1, characterized in that: The blocking layer includes a plurality of blocking layer openings surrounded by a blocking portion, the plurality of blocking layer openings correspond one-to-one to the plurality of light-emitting unit openings, each of the plurality of blocking layer openings is respectively located above the corresponding light-emitting unit opening, and an opening area of ​​each of the plurality of blocking layer openings is larger than an opening area of ​​the corresponding light-emitting unit opening.

8. The display panel according to any one of claims 1 to 7, characterized in that: The display panel further includes a plurality of protrusions, wherein the plurality of protrusions are respectively located in the plurality of light emitting unit openings, and the light emitting units are disposed in the light emitting unit openings and located on the protrusions.

9. The display panel according to any one of claims 1 to 8, characterized in that: The display panel further includes a plurality of spacers, wherein the spacers are located on the blocking layer, and at least two light emitting unit openings are included between any two adjacent spacers among the plurality of spacers.

10. A mask, characterized in that: The mask includes a plurality of first mask parts, a plurality of second mask parts and a plurality of third mask parts, wherein the light transmittance of the first mask parts is greater than the light transmittance of the second mask parts, and the light transmittance of the second mask parts is greater than the light transmittance of the third mask parts.

11. The mask according to claim 10, characterized in that: The mask further includes a fourth mask portion, and a light transmittance of the fourth mask portion is lower than a light transmittance of the third mask portion.

12. A method for manufacturing a display panel, characterized in that: The method comprises: A display panel is manufactured using the mask as claimed in claim 10 or 11.

13. An electronic device, characterized in that: The electronic device comprises the display panel according to any one of claims 1 to 9.

Images