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

Abstract

Provided in the present application are a display panel, a mask, a display panel manufacturing method, and an electronic device. The display panel comprises: a substrate; a pixel define layer located on the substrate, the pixel define layer having a plurality of light-emitting unit openings and banks located around the light-emitting unit openings; and a blocking layer located on the banks. In the above technical solution, the blocking layer is arranged on the banks around the light-emitting unit openings, so that the width of a shadow region can be effectively reduced, thus reducing the probability of light-emitting units of different colors being deposited in the same region. In addition, the width of the shadow region is inversely proportional to the sizes of sub-pixels. Therefore, the smaller the width of the shadow region, the larger the sub-pixels can be, resulting in the light emission area being larger and the aperture ratio accordingly being higher. Therefore, the display effect of the display panel can be improved.

Description

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

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on August 28, 2023, with application number 202311099685.5 and invention name “Display panel, mask, method for manufacturing display panel and electronic device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] 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

[0003] In recent years, the development of flat-panel displays has shifted from traditional liquid crystal displays (LCDs) to organic light-emitting diode (OLED) screens. OLED technology offers numerous advantages over LCD, notably its lack of a backlight component. Because OLEDs are self-luminous, each sub-pixel can be directly controlled by a thin-film transistor (TFT) to emit light. Furthermore, the contrast ratio of OLED screens can be significantly improved. When displaying a black image, the corresponding sub-pixel can simply be turned off. With this technology, contrast ratios can even reach 1 million to 1. In contrast, LCDs maintain a consistent backlight brightness, and each pixel is then modulated by the liquid crystal to determine whether to turn it on, off, or adjust its brightness. Because LCDs cannot completely block the light emitted by the backlight, the contrast ratio is approximately 1,000 to 1. Furthermore, due to OLED's self-luminous nature, it can be further developed into various types of displays, such as foldable, rollable, and stretchable displays.

[0004] Each OLED subpixel includes a light-emitting unit for a specific color. This 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 subpixels include red, green, and blue subpixels.

[0005] 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.

[0006] Summary of the Invention

[0007] 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.

[0008] 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.

[0009] The above technical solution incorporates a barrier layer on the walls surrounding the light-emitting unit openings, effectively reducing the width of the shadow zone, thereby reducing the probability of light-emitting units of different colors being deposited in the same area. Furthermore, the width of the shadow zone is inversely proportional to the size of the sub-pixel. Therefore, the smaller the width of the shadow zone, the larger the sub-pixel can be, which in turn increases the light-emitting area and aperture ratio, thereby improving the display quality of the display panel.

[0010] 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.

[0011] 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 multiple first blocking portions and multiple second blocking portions, the first blocking portions and the second blocking portions have different sizes, the first blocking portion is provided on the blocking wall between the first light-emitting unit opening and the second light-emitting unit opening, and the second blocking portion is provided on the blocking wall between the second light-emitting unit opening and the third light-emitting unit opening.

[0012] 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.

[0013] 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.

[0014] Optionally, the first side length is the smaller of the side length of the first side and the side length of the second pass, the second side length is the smaller of the side length of the third pass and the side length of the fourth pass, 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.

[0015] 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 adjacent first light-emitting unit opening rows and 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.

[0016] In conjunction with the first aspect, in one 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 the adjacent light-emitting unit opening. For example, if the light-emitting unit opening adjacent to the fourth blocking portion is a light-emitting unit opening that emits green light, 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, if the light-emitting unit opening adjacent to the fifth blocking portion is a light-emitting unit opening that emits green light, the length of the fifth blocking portion may be greater than or equal to the light-emitting unit opening that emits green light.

[0017] Of the three light-emitting unit openings, the green-emitting unit has the smallest opening. Therefore, as long as the length or width of the blocking portion adjacent to the green-emitting unit opening is greater than that of the green-emitting unit, the red and blue shadows will not be deposited onto the green-emitting unit during vapor deposition, thus preventing color mixing.

[0018] 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 the opening area of ​​each of the plurality of blocking layer openings is larger than the opening area of ​​the corresponding light-emitting unit opening.

[0019] In combination with the first aspect, in a possible implementation 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.

[0020] After the protrusion is added, the distance between the pixel area where the light emitting unit is provided and the FMM can be reduced, thereby increasing the size of the pixel area and the light emitting area.

[0021] 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 above the blocking layer, and at least two light-emitting unit openings are included between any two adjacent spacers among the plurality of spacers.

[0022] The spacer can prevent the FMM from being too close to the pixel definition layer and thereby scratching the pixel definition layer.

[0023] 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.

[0024] The above technical solution provides a protrusion within the light-emitting unit opening of the display panel. In other words, a protrusion is provided above the substrate within the light-emitting unit opening, and the light-emitting unit is arranged above this protrusion. Compared to placing the light-emitting unit directly on the substrate within the light-emitting unit opening, placing the light-emitting unit above 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.

[0025] In combination with the second aspect, in a possible implementation of the second aspect, the display panel further includes: a blocking layer located on the retaining wall.

[0026] The above technical solution incorporates a barrier layer on the walls surrounding the light-emitting unit openings, effectively reducing the width of the shadow zone, thereby reducing the probability of light-emitting units of different colors being deposited in the same area. Furthermore, the width of the shadow zone is inversely proportional to the size of the sub-pixel. Therefore, the smaller the width of the shadow zone, the larger the sub-pixel can be, which in turn increases the light-emitting area and aperture ratio, thereby improving the display quality of the display panel.

[0027] 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.

[0028] 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 multiple first blocking portions and multiple second blocking portions, the first blocking portions and the second blocking portions have different sizes, the first blocking portion is provided on the blocking wall between the first light-emitting unit opening and the second light-emitting unit opening, and the second blocking portion is provided on the blocking wall between the second light-emitting unit opening and the third light-emitting unit opening.

[0029] 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 adjacent first light-emitting unit opening rows and 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; the fifth blocking portion is provided between two adjacent light-emitting unit openings of the second light-emitting unit opening row.

[0030] 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 the opening area of ​​each of the plurality of blocking layer openings is larger than the opening area of ​​the corresponding light-emitting unit opening.

[0031] 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 above the blocking layer, and at least two light-emitting unit openings are included between any two adjacent spacers among the plurality of spacers.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] In a fifth aspect, an embodiment of the present application provides a method for manufacturing a display panel, the method comprising: manufacturing the display panel using the mask according to the third aspect.

[0036] In a sixth aspect, an embodiment of the present application provides a method for manufacturing a display panel, the method comprising: manufacturing the display panel using the mask according to the fourth aspect.

[0037] 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.

[0038] 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

[0039] FIG1 is a schematic diagram of a display panel.

[0040] FIG2 is a cross-sectional view of a display panel.

[0041] FIG3 is a schematic diagram of the evaporation process.

[0042] FIG4 is another schematic diagram of evaporation.

[0043] FIG5 is a schematic diagram of the edge of the FMM mask hole.

[0044] Figure 6 is a schematic diagram of the shaded areas of SW and SH of different sizes.

[0045] FIG. 7 is a schematic diagram of another display panel.

[0046] FIG8 is a schematic diagram of a display panel provided according to an embodiment of the present application.

[0047] FIG9 is a cross-sectional view of a display panel.

[0048] FIG. 10 is a schematic diagram showing a shadow area with and without a blocking portion.

[0049] FIG11 is a schematic diagram of another display panel provided according to an embodiment of the present application.

[0050] FIG. 12 is a schematic diagram of regions 1130 and 1140 in the display panel 1100 .

[0051] FIG13 is a schematic diagram of another display panel provided according to an embodiment of the present application.

[0052] FIG14 is a schematic diagram of another display panel provided according to an embodiment of the present application.

[0053] FIG15 is a cross-sectional view of another display panel provided according to an embodiment of the present application.

[0054] FIG16 is a schematic diagram of another display panel provided according to an embodiment of the present application.

[0055] FIG17 is a cross-sectional view of a display panel.

[0056] FIG18 is an interface diagram of another display panel provided according to an embodiment of the present application.

[0057] FIG19 is an interface diagram of another display panel provided according to an embodiment of the present application.

[0058] FIG20 is a schematic diagram of a mask provided according to an embodiment of the present application.

[0059] FIG21 is a cross-sectional view of a mask.

[0060] FIG22 is a schematic diagram of another mask provided according to an embodiment of the present application.

[0061] FIG23 is a schematic diagram of another mask provided according to an embodiment of the present application.

[0062] FIG24 is a schematic diagram of another mask provided according to an embodiment of the present application.

[0063] FIG25 is a schematic diagram of another mask provided according to an embodiment of the present application.

[0064] FIG26 is a cross-sectional view of a mask. DETAILED DESCRIPTION

[0065] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

[0066] In the embodiments of this application, words such as "exemplary" and "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "exemplary" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of the word "exemplary" is intended to present concepts in a concrete way.

[0067] In the embodiments of the present application, “corresponding” and “relevant” may sometimes be used interchangeably. It should be noted that when the distinction between them is not emphasized, the meanings they intend to express are consistent.

[0068] 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 skilled in the art will 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.

[0069] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present application. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in yet other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0070] In this application, "at least one" means one or more, and "more" 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 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.

[0071] FIG1 is a schematic diagram of a display panel. The display panel 100 shown in FIG1 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 one color of 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.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] Fig. 2 is a cross-sectional view of the display panel. The cross-sectional view of the display panel shown in Fig. 2 is a cross-sectional view taken along the cross-sectional line AA' shown in Fig. 1 .

[0076] As shown in FIG2 , the retaining wall of the pixel definition layer encloses the light-emitting unit opening. The light-emitting unit is located in the light-emitting unit opening. The light-emitting unit is disposed in the light-emitting unit opening by vapor deposition.

[0077] FIG3 is a schematic diagram of the evaporation process.

[0078] The material containing the light-emitting unit is heated by the evaporation source and converted into gas. The light-emitting unit passes through the FMM mask hole and is deposited in the area between the mask hole and the substrate.

[0079] The deposition range of a deposition source is determined by the deposition angle. As shown in Figure 3 , the deposition angle θ of deposition source 301 determines the deposition range of source 301. The area between reference lines 311 and 312 is the deposition range of source 301. Similarly, the deposition angle of deposition source 302 determines the deposition range of source 302, and the deposition angle of deposition source 303 determines the deposition range of source 303.

[0080] As shown in FIG. 3 , 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 .

[0081] 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 the "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 × the 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 × the 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.

[0082] As shown in Figure 3 , the vapor deposition area 320 can be divided into a pixel area and a shadow area based on the thickness. The pixel area includes pixel area 321, and the shadow area includes shadow area 322 and shadow area 323. As shown in Figure 3 , pixel area 321 is located within the light-emitting opening area of ​​the pixel definition layer surrounded by the retaining walls. Shadow area 322 is located on the sidewalls and top of retaining wall 331, and shadow area 323 is located on the sidewalls and top of retaining wall 332.

[0083] Figure 4 is another schematic diagram of evaporation. The evaporation schematic diagram shown in Figure 4 is a portion of the evaporation schematic diagram shown in Figure 3. More specifically, the evaporation schematic diagram shown in Figure 4 shows the retaining wall 331, the shadowed area on the sidewalls and top of the retaining wall 331, and a portion of the pixel area.

[0084] 4 , the shadow area 322 shown in FIG3 includes a shadow area 401, a shadow area 402, and a shadow area 403. The pixel area 410 shown in FIG4 is a portion of the pixel area 321 shown in FIG3 , which is close to the barrier wall 331.

[0085] Based on the edges of the FMM mask holes, the shadow area can be further divided into an inner shadow area (innershadow) and an outer shadow area (outershadow). The inner shadow area refers to the shadow area generated by the edge of the FMM mask hole toward the target evaporated light-emitting unit opening. The outer shadow area is the shadow area generated by the adjacent opening of the FMM mask hole toward the target evaporated light-emitting unit opening. According to the above definition, the outer shadow area shown in Figure 4 is shadow area 401, and the inner shadow area includes shadow area 402 and shadow area 403.

[0086] 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. Corresponding to Figure 4, the evaporation source below the opening of the target evaporated light-emitting unit is the evaporation source 301, the evaporation source adjacent to the evaporation source 301 is the evaporation source 302, and the first shadow area includes the shadow area 401 and the shadow area 402. In other words, the reference line 311 and the 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, the evaporation source below the opening of the target evaporated light-emitting unit is the evaporation source 301, and the second shadow area is the shadow area 403.

[0087] FIG5 is a schematic diagram of the edge of the FMM mask hole.

[0088] 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) at the FMM mask hole edge affect the shadow area. In other words, the step width (SW) and step height (SH) at the FMM mask hole edge affect the first shadow area mentioned above.

[0089] Figure 6 is a schematic diagram of the shaded areas of SW and SH of different sizes.

[0090] As shown in (a) and (b) in Figure 6, the SW and SH of the edge of the FMM mask hole in (b) in Figure 6 are smaller than the SW and SH of the edge of the FMM mask hole in (a) in Figure 6. Therefore, the width of the first shadow area in (b) in Figure 6 is smaller than the width of the first shadow area in (a) in Figure 6.

[0091] The distance between the spaced pixels (or the spaced light emitting unit openings) can be called a PDL gap. During the evaporation process, the shadow area generated by the evaporation should be prevented from evaporating into the adjacent light emitting unit openings.

[0092] FIG. 7 is a schematic diagram of another display panel.

[0093] As shown in Figure 7, the shadow area 702 generated when evaporating the light-emitting unit opening 701 overlaps with the light-emitting unit opening 703. If the light-emitting unit opening 701 is evaporated with a light-emitting unit that emits blue light and the light-emitting unit opening 703 is evaporated with a light-emitting unit that emits green light, light-emitting units of different colors will be evaporated into the same area, resulting in color mixing.

[0094] As shown in FIG. 7 , 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 a poor display effect.

[0095] The present invention provides a display panel comprising a blocking layer located above the PDL. This layer shortens the distance between the FMM and the display panel, thereby reducing the width of the shadow area. This reduces the probability that light-emitting units of different colors will be evaporated into the same area.

[0096] FIG8 is a schematic diagram of a display panel provided according to an embodiment of the present application.

[0097] As shown in FIG8 , a display panel 800 includes a pixel definition layer 810 located on a substrate. The pixel definition layer 810 includes a plurality of light-emitting cell openings, including a plurality of light-emitting cell openings R, a plurality of light-emitting cell openings G, and a plurality of light-emitting cell openings B. The light-emitting cell openings R are light-emitting cell openings filled with light-emitting cells R, the light-emitting cell openings G are light-emitting cell openings filled with light-emitting cells G, and the light-emitting cell openings B are light-emitting cell openings filled with light-emitting cells B.

[0098] Light-emitting cell openings can be divided into a first light-emitting cell opening row and a second light-emitting cell opening row based on the arrangement of the light-emitting cell openings. The first light-emitting cell opening row includes two types of light-emitting cell openings, with multiple openings of each type present in the first opening row. The two types of light-emitting cell openings in the first light-emitting cell opening row are arranged alternately, and the same type of light-emitting cell openings are arranged alternately. Similarly, the second light-emitting cell opening row also includes two types of light-emitting cell openings, with multiple openings of each type present in the second opening row. The two types of light-emitting cell openings in the second light-emitting cell opening row are arranged alternately, and the same type of light-emitting cell openings are arranged alternately. One type of light-emitting cell opening in the first light-emitting cell opening row is the same as one type of light-emitting cell opening in the second light-emitting cell opening row. In other words, assuming there are three types of light-emitting cell openings, namely, first light-reflecting cell openings, second light-reflecting cell openings, and third light-reflecting cell openings, the first light-emitting cell opening row has multiple first light-emitting cell openings and multiple second light-reflecting cell openings arranged alternately and alternately, while the second light-reflecting cell opening row has multiple second light-reflecting cell openings and multiple third light-reflecting cell openings arranged alternately and alternately.

[0099] 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 as shown in Figure 8, the first light-emitting opening row includes a plurality of light-emitting unit openings R and a plurality of light-emitting unit openings G 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 arranged alternately and at intervals.

[0100] Assuming that the first light-emitting unit opening is a light-emitting unit opening R, the second light-emitting unit is a light-emitting unit opening B, and the third light-emitting unit opening is a 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.

[0101] 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 .

[0102] 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 unit opening row includes a plurality of light-emitting unit openings R and a plurality of light-emitting unit openings G arranged alternately and at intervals. In other words, in the first light-emitting unit opening row, the light-emitting unit openings R and G are adjacent to each other. Therefore, in the first light-emitting unit opening row, the first type of blocking portion 821 is provided on the retaining wall between adjacent light-emitting unit openings R and G.

[0103] 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 arranged alternately and spaced apart. In other words, in the second light-emitting unit opening row, the light-emitting unit openings B and G are adjacent. 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 G.

[0104] As shown in Figure 8, display panel 800 includes a plurality of first rows of light-emitting openings and a plurality of second rows of light-emitting openings. The plurality of first rows of light-emitting openings and the plurality of second rows of light-emitting openings are arranged alternately and at intervals. In other words, the first rows of light-emitting openings are adjacent to the second rows of light-emitting openings. The third type of blocking portion 823 is located on the retaining wall between the first rows of light-emitting openings and the second rows of light-emitting openings.

[0105] In some embodiments, the first type blocking portion 821, the second type blocking portion 822, and the third type blocking portion 823 have different sizes. For example, as shown in FIG8 , 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 spacing between the light emitting unit openings.

[0106] 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 (such as a circle or an ellipse), then W st1 The length of one side of the circumscribed rectangle of the first type blocking portion 821 adjacent to the light emitting unit opening G can be made. Similarly, if the shape of the light emitting unit opening G is not a quadrilateral (such as a circle or an ellipse), then W g1 It can 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 .

[0107] 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 g2 If the shape of the second type blocking portion 822 is not a quadrilateral (such as 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 (such as 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 .

[0108] In other embodiments, W st1 With W g1 They may also be unequal, and / or L st2 With L g2 can be unequal. In other words, W st1 With W g1 The relationship between, and L st2 With L g2 The relationship may be one of the following four situations:

[0109] Case 1: W st1=W g1 , and L st2 =L g2 ;

[0110] Case 2: W st1 =W g1 , and L st2 ≠L g2 ;

[0111] Case 3: W st1 ≠W g1 , and L st2 =L g2 ;

[0112] Case 4: W st1 ≠W g1 , and L st2 ≠L g2 .

[0113] In some embodiments, W st1 Can be greater than W g1 .

[0114] In some embodiments, L st2 Can be greater than L g2 .

[0115] Fig. 9 is a cross-sectional view of the display panel. The cross-sectional view of the display panel shown in Fig. 9 is a cross-sectional view taken along the section line AA' shown in Fig. 8 .

[0116] As shown in FIG9 , blocking portions are provided on the retaining walls on both sides of the opening of each light-emitting unit.

[0117] By utilizing the blocking portion provided on the retaining wall, the width of the shadow area can be effectively reduced.

[0118] FIG. 10 is a schematic diagram showing a shadow area with and without a blocking portion.

[0119] As shown in Figure 10, shadow area 1 is the shadow area of ​​the display panel provided with the blocking portion, and shadow area 2 is the shadow area of ​​the display panel not provided with the blocking portion. Obviously, the width W1 of the shadow area 1 of the display panel provided with the blocking portion is smaller than the width W2 of the shadow area of ​​the display panel not provided with the blocking portion. It can be seen that by providing 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 into the same area. It can be understood that the shadow area 1 and the shadow area 2 shown in Figure 10 are the first shadow areas mentioned in the above embodiment. As shown in Figure 10, the top of the blocking portion, the edge of the blocking portion and the edge of the retaining wall can also include a second shadow area. However, since the second shadow area does not cause color mixing, the second shadow area is not shown in Figure 10.

[0120] The width of the shadow area is related to the distance from the FMM to the stopper, SW, and SH.

[0121] When a blocking layer is provided, the width of the outer shadow area satisfies the following formula: OS =D FMM_SS / tanθ+SW, (Formula 1.1)

[0122] Among them, W OS Indicates the width of the outer shadow area, D FMM_SS represents the distance from the FMM to the stopper, SW represents the step width, and θ represents the evaporation angle.

[0123] When a blocking layer is provided, the width of the inner shadow area satisfies the following formula: 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: W OS =D FMM_PDL / tanθ+SW, (Formula 2.1)

[0126] 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.

[0127] If the blocking layer is not set, the width of the inner shadow area satisfies the following formula: W IS =(SH+D FMM_PDL ) / tanθ, (Formula 2.2)

[0128] Among them, W IS Indicates the width of the inner shadow area, D FMM_PDL represents the distance between FMM and the top of the retaining wall, SH represents the step height, and θ represents the evaporation angle.

[0129] 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_PDLTherefore, the outer shadow area with a barrier layer is smaller than the outer shadow area without a barrier layer, and the inner shadow area with a barrier layer is smaller than the inner shadow area without a barrier layer. Therefore, the shadow area with a barrier layer is smaller than the shadow area without a barrier layer.

[0130] The height of the stopper (e.g., Hs, as shown in FIG. 9 ) can be greater than 0 micrometers (μm). For example, in some embodiments, the height of the stopper 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 stopper 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 stopper can be 0.1 μm, 0.3 μm, 0.5 μm, 1 μm, 1.5 μm, or 2.0 μm.

[0131] Table 1 shows the effects of different heights of the blocking portions on the sub-pixel size, light emitting area, shadow area width, etc.

[0132] Table 1

[0133] 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, i.e., 4.46 = 3.03 + 1.43), the side length of the sub-pixel (i.e., 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 square).

[0134] 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.

[0135] 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: PDL_gap =2×(Mft_Err+W S ), (Formula 3.1)

[0136] Among them, W PDL_gap represents the PDL interval, Mft_Err represents the total process error, W S = represents the total shadow width. As can be seen from Table 1, when the total shadow width decreases from 4.46 μm to 4.00 μm, the PDL interval increases by 0.93 μm. The increase in the PDL interval is approximately twice the decrease in the total shadow width.

[0137] 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.

[0138] Therefore, by providing the blocking portion, the width of the shadow area can be effectively reduced, and the light-emitting area and aperture ratio can be increased, so that the sub-pixel can emit more light, thereby improving the display effect of the display panel.

[0139] FIG11 is a schematic diagram of another display panel provided according to an embodiment of the present application.

[0140] As shown in FIG11 , a display panel 1100 includes a pixel definition layer 1110 located on a substrate. The pixel definition layer 1110 includes a plurality of light-emitting cell openings, including a plurality of light-emitting cell openings R, a plurality of light-emitting cell openings G, and a plurality of light-emitting cell openings B. The light-emitting cell openings R are light-emitting cell openings filled with light-emitting cells R, the light-emitting cell openings G are light-emitting cell openings filled with light-emitting cells G, and the light-emitting cell openings B are light-emitting cell openings filled with light-emitting cells B.

[0141] As shown in FIG. 11 , 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 .

[0142] As shown in FIG11 , the blocking layer 1120 includes two types of blocking portions: a first type of blocking portion 1121 and a second type of blocking portion 1122. The first type of blocking portion 1121 is located on the blocking wall between the light-emitting unit opening G and the light-emitting unit opening R, while the second type of blocking portion 1122 is located on the blocking wall between the light-emitting unit opening B and the light-emitting unit opening G.

[0143] In some embodiments, the first type of blocking portion 1121 and the second type of blocking portion 1122 are different in shape and size.

[0144] 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.

[0145] In other embodiments, the first type of blocking portion 1121 and the second type of blocking portion 1122 have the same shape and size.

[0146] 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.

[0147] In some embodiments, Leg1, Ler1, Lgs1, and Lrs1 satisfy the following relationship:

[0148] Leg1=Ler1≥max(Lgs1,Lrs1),

[0149] 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.

[0150] In some other embodiments, Leg1, Ler1, Lgs1, and Lrs1 satisfy the following relationship:

[0151] Leg1=Ler1≥min(Lgs1,Lrs1),

[0152] Where min(Lgs1, Lrs1) represents the smaller value of Lgs1 and Lrs1. In other words, Leg1 is equal to Ler1 and greater than or equal to the smaller value of Lgs1 and Lrs1.

[0153] 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 adjacent to the light-emitting unit opening G and the second-type blocking portion 1122 is Lgs2, and the side length of the side adjacent to the light-emitting unit opening B and the first-type blocking portion 1211 is Lbs2.

[0154] In some embodiments, Leg2, Leb2, Lgs2, and Lbs2 satisfy the following relationship:

[0155] Leg2=Leb2≥max(Lgs2,Lbs2),

[0156] Where 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.

[0157] In other embodiments, Leg2, Leb2, Lgs2, and Lbs2 satisfy the following relationship:

[0158] Leg1=Ler1≥min(Lgs2,Lbs2),

[0159] 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.

[0160] It is understood that the above-mentioned size relationship between Leg1, Ler1, Lgs1, and Lrs1 is only a possible implementation method and does not limit the technical solution of this application. The size relationship between Leg1, Ler1, Lgs1, and Lrs1 can also be other. For example, Leg1>Ler1≥min(Lgs1, Lrs1). Similarly, the above-mentioned size relationship between Leg2, Leb2, Lgs2, and Lbs2 is only a possible implementation method and does not limit the technical solution of this application.

[0161] FIG. 12 is a schematic diagram of a partial area of ​​the display panel 1100 .

[0162] FIG12( a ) shows a light emitting unit opening B (ie, light emitting unit opening 1211 ) and four light emitting unit openings G adjacent to the light emitting unit opening 1211 (ie, light emitting unit opening 1221 , light emitting unit opening 1222 , light emitting unit opening 1223 , and light emitting unit opening 1224 ).

[0163] A retaining wall (not shown) is provided between the light-emitting unit opening 1211 and each adjacent light-emitting unit opening G. Alternatively, in other words, it can be considered that four retaining walls enclose the light-emitting unit opening 1211, and each of the four retaining walls, together with the other retaining walls, encloses a light-emitting unit opening G in FIG. 12 (a).

[0164] As shown in (a) of Figure 12, 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.

[0165] As described above, light-emitting unit opening 1211 is light-emitting unit opening B, and light-emitting unit openings 1221, 1222, 1223, and 1224 are light-emitting unit openings G. In other words, the two sides of the retaining wall in region 1130 are light-emitting unit openings B and light-emitting unit openings G, respectively. Therefore, blocking portions 1231, 1232, 1233, and 1234 are second-type blocking portions 1122.

[0166] In summary, the light-emitting unit opening B shown in FIG12(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 one-to-one with the four retaining walls. Each of the four retaining walls is used to separate the corresponding light-emitting unit opening G from the light-emitting unit opening B. Each of the four retaining walls can be provided with a second-type blocking portion 1122. Therefore, FIG12(a) includes four second-type blocking portions 1122.

[0167] FIG12( 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 ).

[0168] A retaining wall (not shown) is provided between the light-emitting unit opening 1241 and each adjacent light-emitting unit opening G. Alternatively, in other words, it can be considered that four retaining walls enclose the light-emitting unit opening 1241, and each of the four retaining walls, together with the other retaining walls, encloses a light-emitting unit opening G as shown in FIG. 12(b).

[0169] As shown in (b) of Figure 12, 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.

[0170] As described above, light-emitting unit opening 1241 is light-emitting unit opening B, and light-emitting unit openings 1251, 1252, 1253, and 1254 are light-emitting unit openings G. In other words, the two sides of the retaining wall in region 1140 are light-emitting unit openings B and G, respectively. Therefore, blocking portions 1261, 1262, 1263, and 1264 are first-type blocking portions 1121.

[0171] In summary, the light-emitting unit opening R shown in FIG12(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 one-to-one with the four retaining walls. Each of the four retaining walls is used to separate the corresponding light-emitting unit opening G from the light-emitting unit opening R. Each of the four retaining walls can be provided with a first-type blocking portion 1121. Therefore, FIG12(a) includes four first-type blocking portions 1121.

[0172] The cross-sectional view taken along the section line AA′ shown in FIG11 is similar to the cross-sectional view shown in FIG9 , and for the sake of brevity, details thereof will not be repeated here.

[0173] FIG13 is a schematic diagram of another display panel provided according to an embodiment of the present application.

[0174] As shown in FIG13 , a display panel 1300 includes a pixel definition layer 1310 located on a substrate. The pixel definition layer 1310 includes a plurality of light-emitting cell openings, including a plurality of light-emitting cell openings R, a plurality of light-emitting cell openings G, and a plurality of light-emitting cell openings B. The light-emitting cell openings R are light-emitting cell openings filled with light-emitting cells R, the light-emitting cell openings G are light-emitting cell openings filled with light-emitting cells G, and the light-emitting cell openings B are light-emitting cell openings filled with light-emitting cells B.

[0175] As shown in FIG13 , a display panel 1300 includes a blocking layer 1320 located above 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 correspond one-to-one to a plurality of light-emitting unit openings. Each blocking layer opening is located above a corresponding light-emitting unit opening and is larger than the corresponding light-emitting unit opening.

[0176] The cross-sectional view taken along the section line AA′ shown in FIG13 is similar to the cross-sectional view shown in FIG9 , and for the sake of brevity, details thereof will not be repeated here.

[0177] FIG14 is a schematic diagram of another display panel provided according to an embodiment of the present application.

[0178] As shown in FIG14 , a display panel 1400 includes a pixel definition layer 1410 located on a substrate. The pixel definition layer 1410 includes a plurality of light-emitting cell openings, including a plurality of light-emitting cell openings R, a plurality of light-emitting cell openings G, and a plurality of light-emitting cell openings B. The light-emitting cell openings R are light-emitting cell openings filled with light-emitting cells R, the light-emitting cell openings G are light-emitting cell openings filled with light-emitting cells G, and the light-emitting cell openings B are light-emitting cell openings filled with light-emitting cells B.

[0179] As shown in FIG14 , a display panel 1400 includes a blocking layer 1420 located above 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 correspond one-to-one to a plurality of light-emitting unit openings. Each blocking layer opening is located above a corresponding light-emitting unit opening and is larger than the corresponding light-emitting unit opening.

[0180] The cross-sectional view taken along the section line AA′ shown in FIG14 is similar to the cross-sectional view shown in FIG9 , and for the sake of brevity, details thereof will not be repeated here.

[0181] It can be seen that the display panel shown in FIG. 14 is similar to the display panel shown in FIG. 13 , with the only difference being that the width of the stopping portion of the stopping layer in FIG. 14 is greater than the width of the stopping portion of the stopping layer in FIG. 13 .

[0182] In some embodiments, a protrusion is further provided in the opening of the light emitting unit, and the light emitting unit is provided on the protrusion.

[0183] After the protrusion is added, the distance between the pixel area and the FMM can be reduced, thereby increasing the size of the pixel area and the light-emitting area.

[0184] The height of the stopper (e.g., Hs, as shown in FIG. 15 ) is greater than 0 micrometers (μm). For example, in some embodiments, the height of the stopper 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 stopper 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 stopper may be 0.1 μm, 0.3 μm, 0.6 μm, 0.9 μm, or 1 μm.

[0185] Figure 15 is a cross-sectional view of another display panel provided according to an embodiment of the present application. As shown in Figure 15 , a protrusion is provided within each light-emitting unit opening. The protrusion is located above the substrate. The pixel region containing the light-emitting unit is located above the protrusion.

[0186] Table 2 shows the effects of protrusions and blocking portions of different heights on sub-pixel size, light-emitting area, shadow area width, etc.

[0187] Table 2

[0188] 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, i.e., 4.46 = 3.03 + 1.43), the side length of the sub-pixel (i.e., 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 square).

[0189] 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 483μm 2 Compared with the case without protrusions and blocking parts, the luminous 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 luminous area is 438μm 2 It can be seen that providing both 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.

[0190] FIG16 is a schematic diagram of another display panel provided according to an embodiment of the present application. Display panel 1600 includes a pixel definition layer 1610 located above a substrate. Pixel definition layer 1610 includes a plurality of light-emitting cell openings, including a plurality of light-emitting cell openings R, a plurality of light-emitting cell openings G, and a plurality of light-emitting cell openings B. Light-emitting cell openings R are light-emitting cell openings that are filled with light-emitting cells R, light-emitting cell openings G are light-emitting cell openings that are filled with light-emitting cells G, and light-emitting cell openings B are light-emitting cell openings that are filled with light-emitting cells B.

[0191] 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 .

[0192] The positional relationship among the pixel definition layer 1610, the light emitting unit opening and the blocking layer 1620 in the display panel 1600 shown in FIG16 is similar to that of the display panel 800 shown in FIG8 , and will not be described again for the sake of brevity.

[0193] Unlike display panel 800, display panel 1600 also includes spacers 1631. As shown in Figure 16, spacers 1631 are located above the blocking portions. As can be seen from Figure 16, the distribution density of spacers 1631 is less than the distribution density of blocking portions. As shown in Figure 16, blocking portions are provided on the retaining walls surrounding each light-emitting unit opening, while spacers are located above the blocking portions of the retaining walls surrounding only some of the light-emitting unit openings.

[0194] 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.

[0195] 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.

[0196] Fig. 17 is a cross-sectional view of the display panel. The cross-sectional view of the display panel shown in Fig. 17 is a cross-sectional view taken along the section line AA' shown in Fig. 17 .

[0197] As shown in Figure 17, the cross-section of the blocking portion is trapezoidal, and the cross-section of the spacer above the blocking portion is also trapezoidal. For ease of description, the cross-section of the blocking portion can be referred to as the first trapezoid, and the cross-section of the spacer above the blocking portion can be referred to as the second trapezoid. As shown in Figure 17, the upper base of the first trapezoid is shorter than the lower base of the second trapezoid, and the height of the first trapezoid is shorter than the height of the second trapezoid.

[0198] It should be understood that the cross-sectional shapes of the blocking portion and the spacer shown in Figure 17 are merely examples, and are not intended to limit their cross-sectional shapes. The cross-sectional shapes of the blocking portion and the spacer may also be other shapes. For example, the cross-sectional shapes of the blocking portion and the spacer may be rectangular, right-angled trapezoidal, etc., or irregular in shape. Furthermore, the cross-sectional shape of the blocking portion and the spacer may be the same or different. For example, in some embodiments, the cross-sectional shape of the blocking portion is rectangular, while the cross-sectional shape of the spacer is trapezoidal.

[0199] Similarly, a spacer located above the barrier layer may also be provided in the display panel shown in Figures 13 and 14. The specific configuration of the spacer is similar to that shown in Figures 16 and 17, and will not be described here for brevity.

[0200] Figure 18 is an interface diagram of another display panel provided according to an embodiment of the present application. The display panel shown in Figure 18 has a protrusion disposed above the substrate, with the pixel region containing the light-emitting unit located above the protrusion. It can be seen that, compared to the above embodiment, the display panel shown in Figure 18 does not have a blocking portion or a spacer disposed above the retaining wall.

[0201] Table 3 shows the effects of protrusions of different heights on sub-pixel size, light-emitting area, shadow area width, etc.

[0202] Table 3

[0203] 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 square).

[0204] 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%.

[0205] FIG19 is an interface diagram of another display panel provided according to an embodiment of the present application. Similar to FIG18 , the display panel shown in FIG19 is provided with a protrusion on the substrate, and the pixel area including the light-emitting unit is located above the protrusion. The display panel shown in FIG19 does not have a blocking portion on the retaining wall, but has a spacer provided on part of the retaining wall. Similar to the display panel including the blocking portion, the spacers of the display panel shown in FIG19 are also dispersedly provided in the display panel. In other words, not all retaining walls around the light-emitting unit openings are provided with spacers.

[0206] An embodiment of the present application further provides a mask, which is used to manufacture the display panel in the above embodiment.

[0207] Figure 20 is a schematic diagram of a mask provided according to an embodiment of the present application. As shown in Figure 20, the mask 2000 includes a plurality of first mask portions, a second mask portion, and a plurality of third mask portions.

[0208] The first mask portion is used to manufacture the light-emitting unit openings in the display panel. The mask 2000 shown in FIG20 can be used to manufacture the display panel 800 shown in FIG8 . The display panel 800 shown in FIG8 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 used to fill light-emitting units of different colors are also different. Accordingly, as shown in FIG20 , 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. As shown in FIG2000 , the first mask portion may include a plurality of first mask portions R, a plurality of first mask portions G, and a plurality of first mask portions B, wherein the first mask portion R is used to form the light-emitting unit openings R, the first mask portion G is used to form the light-emitting unit openings G, and the first mask portion B is used to form the light-emitting unit openings B.

[0209] The second mask portion is used to form a retaining wall in the display panel.

[0210] The third mask portion is used to form a blocking layer in the display panel. As shown in Figure 20, the third mask portion may include three types of mask portions. These three types of mask portions can be respectively referred to as: third mask portion-type one (i.e., "third mask portion 1" in Figure 20), third mask portion-type two (i.e., "third mask portion 2" in Figure 20), and third mask portion-type three (i.e., "third mask portion 3" in Figure 20). The blocking layer of the display panel shown in Figure 8 also includes three types of blocking portions, namely, first type blocking portions, second type blocking portions and third type blocking portions. These three types of third mask portions are respectively used to form these three types of blocking portions, wherein the third mask portion-type one is used to generate the first type blocking portion, the third mask portion-type two is used to generate the second type blocking portion, and the third mask portion-type three is used to generate the third type blocking portion. The relationship between the size and position of the third mask portion and the first mask portion is the same as the size and position relationship between the blocking portion and the light-emitting opening unit.

[0211] The third mask portion, the second mask portion, and the first mask portion have different light transmittances. The light transmittance of the third mask portion is lower than that of the second mask portion, and the light transmittance of the second mask portion is lower than that of the first mask portion. In other words, the light transmittance of the third mask portion is the lowest, and the light transmittance of the first mask portion is the highest.

[0212] As described above, the first mask portion further 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 also 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.

[0213] 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 also 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 highest transmittance among the three types of third mask portions is less than the transmittance of the second mask portion.

[0214] Figure 21 is a cross-sectional view of the mask. The cross-sectional view of the mask shown in Figure 21 is a cross-sectional view taken along the section line AA' shown in Figure 20. Figure 21 also shows the formation process of the blocking portion, the retaining wall and the light emitting unit opening.

[0215] As shown in (a) of FIG21 , when light is irradiated onto 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 and the light-emitting unit opening with different intensities.

[0216] Since the first mask portion has the highest transmittance, the light intensity after passing through the first mask portion is the highest, so the etching degree of the manufacturing material is the highest, thereby forming the light emitting unit opening as shown in (b) in Figure 21.

[0217] Since the third mask portion has the lowest light transmittance, the light intensity after passing through the third mask portion is the lowest, so the etching degree of the manufacturing material is minimized, thereby forming the blocking portion shown in FIG21( b ).

[0218] Because the transmittance of the second mask portion is between the transmittances of the first and third mask portions, the intensity of light passing through the second mask portion is also between the intensities of light passing through the first and third mask portions. Therefore, the degree of etching of the fabrication material is less than that caused by the first mask portion and greater than that caused by the third mask portion, forming a retaining wall as shown in FIG21(b).

[0219] As shown in Figure 21, after etching, the manufacturing material only includes three heights, of which the blocking portion has the highest height and the light-emitting unit opening has the lowest height. Therefore, in some embodiments, the transmittance of the first mask portion can be 100%, and the transmittance of the third mask portion can 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, then the transmittance of the first mask portion can be 100%, the transmittance of the third mask portion can 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-blocking portion, and the second mask portion can be called a semi-transmitting portion.

[0220] 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%.

[0221] FIG22 is a schematic diagram of another mask provided according to an embodiment of the present application. The mask 2200 shown in FIG22 can be used to manufacture the display panel 1100 shown in FIG11 .

[0222] FIG23 is a schematic diagram of another mask provided according to an embodiment of the present application. The mask 2300 shown in FIG23 can be used to manufacture the display panel 1300 shown in FIG13 .

[0223] FIG24 is a schematic diagram of another mask provided according to an embodiment of the present application. The mask 2400 shown in FIG24 can be used to manufacture the display panel 1400 shown in FIG14 .

[0224] FIG25 is a schematic diagram of another mask provided according to an embodiment of the present application. The mask 2500 shown in FIG25 can be used to manufacture the display panel 1600 shown in FIG16 .

[0225] As described above, the display panel 1600 shown in FIG16 is similar to the display panel 800 shown in FIG8 . The difference between display panel 800 and display panel 1600 is that, compared with display panel 800, display panel 1600 further includes a spacer. Accordingly, the structures of mask 2500 used to manufacture display panel 1600 and mask 2000 used to manufacture display panel 800 are also similar. The difference between mask 2000 and mask 2500 is that, compared with mask 2000, mask 2500 further includes a fourth mask portion for forming a spacer.

[0226] Figure 26 is a cross-sectional view of the mask. The cross-sectional view of the mask shown in Figure 26 is a cross-sectional view taken along the section line AA' shown in Figure 25. Figure 26 also shows the formation process of the blocking portion, the retaining wall, the spacer, and the light emitting unit opening.

[0227] As shown in (a) in Figure 26, when light is irradiated on the mask part, due to the different transmittances of different mask parts, the light intensity of the light passing through different mask parts and reaching the materials used to make the blocking part, retaining wall, spacer and light-emitting unit opening is different.

[0228] Since the first mask portion has the highest transmittance, the light intensity after passing through the first mask portion is the highest, so the etching degree of the manufacturing material is the highest, thereby forming the light emitting unit opening as shown in (b) in Figure 26.

[0229] Since the fourth mask portion has the lowest light transmittance, the light intensity after passing through the third mask portion is the lowest, so the etching degree of the manufacturing material is minimized, thereby forming the spacer as shown in FIG26( b ).

[0230] Since the transmittance of the second mask portion is lower than that of the first mask portion, the light intensity after passing through the second mask portion is lower than the light intensity after passing through the first mask portion. Therefore, a retaining wall as shown in FIG26( b ) is formed.

[0231] Since the transmittance of the third mask portion is lower than that of the second mask portion, the light intensity after passing through the third mask portion is lower than the light intensity after passing through the second mask portion. Therefore, a blocking portion as shown in FIG26( b ) is formed.

[0232] As shown in Figure 26, the fabrication material comprises four heights after etching, with the spacer having the highest height and the light-emitting unit opening having the lowest height. Therefore, in some embodiments, the transmittance of the first mask portion can be 100%, and the transmittance of the fourth mask portion can be 0%. In other words, in some embodiments, if the mask portion includes the first mask portion, the second mask portion, the third mask portion, and the fourth mask portion, then the transmittance of the first mask portion can be 100%, the transmittance of the fourth mask portion can be 0%, the transmittance of the second mask portion and the transmittance of the third mask portion are less than 100% and greater than 0%, and the transmittance of the second mask portion is greater than the transmittance of the third mask portion. Since the first mask portion does not block light, the fourth mask portion blocks light, and the second and third mask portions partially block light, the first mask portion can be referred to as a light-transmitting portion, the fourth mask portion can be referred to as a light-blocking portion, the second mask portion can be referred to as a first semi-transmitting portion, and the third mask portion can be referred to as a second semi-transmitting portion.

[0233] 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%.

[0234] For mask portions whose transmittance is not 100% or 0%, a gray tone mask or a half tone mask may be used.

[0235] In some embodiments, if the mask includes multiple mask portions with light transmittances other than 100% and 0%, these mask portions can be implemented using the same technology. For example, assuming the mask includes a first mask portion, a second mask portion, a third mask portion, and a fourth mask portion, and the light transmittance of the first mask portion can be 100% and the light 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.

[0236] In other embodiments, if the mask includes multiple mask portions with light transmittances other than 100% and 0%, these mask portions may be implemented using different technologies. For example, assuming the mask includes a first mask portion, a second mask portion, a third mask portion, and a fourth mask portion, and the light transmittance of the first mask portion may be 100% and the light transmittance of the fourth mask portion may be 0%, the second mask portion may be implemented using a gray tone mask, and the third mask portion may be implemented using a half tone mask.

[0237] The specific method of using the mask to manufacture a display panel is the same as the existing method, and for the sake of brevity, it will not be described again here.

[0238] An embodiment of the present application further provides an electronic device, which includes the display panel as described in the above embodiment.

[0239] The electronic device may be a display device, such as a monitor, a television, a car display screen, an instrument panel, etc. In this case, the electronic device may further include a drive circuit, a power supply, etc. The drive circuit is used to drive the display panel, and the power supply provides power to the display panel.

[0240] 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 further include a processor, a memory, an input / output device (for example, a keyboard, a speaker), etc.

[0241] 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.

[0242] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection 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 display panel 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.

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