CN111864123A - Display panel, mask set and display device - Google Patents
Display panel, mask set and display device Download PDFInfo
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- CN111864123A CN111864123A CN202010687348.8A CN202010687348A CN111864123A CN 111864123 A CN111864123 A CN 111864123A CN 202010687348 A CN202010687348 A CN 202010687348A CN 111864123 A CN111864123 A CN 111864123A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/04—Coating on selected surface areas, e.g. using masks
- C23C14/042—Coating on selected surface areas, e.g. using masks using masks
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/24—Vacuum evaporation
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
- H10K59/352—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels the areas of the RGB subpixels being different
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
- H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
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Abstract
The invention provides a display panel, a mask group and a display device, wherein the display panel comprises a substrate and a pixel layer arranged on the substrate, the pixel layer comprises a plurality of unit areas with regular polygon outer contours, each unit area comprises a plurality of sub-unit areas, each sub-unit area is defined by a connecting line of the center of the corresponding unit area and the midpoint of two adjacent edges and the two adjacent edges, each sub-unit area comprises a first edge and a second edge far away from the center of the corresponding unit area, each sub-unit area comprises a first sub-pixel positioned in the center area of the corresponding unit area, a second sub-pixel positioned in the corresponding sub-unit area and close to the first edge, and a third sub-pixel positioned in the corresponding sub-unit area and close to the second edge, two sides of the junction of two adjacent unit areas comprise two adjacent second sub-pixels and two adjacent third sub-pixels; the scheme improves the resolution of the display panel.
Description
Technical Field
The invention relates to the technical field of display, in particular to the manufacture of a display device, and specifically relates to a display panel, a mask set and a display device.
Background
An OLED (Organic Light Emitting Diode) is a novel current type semiconductor Light Emitting device, and belongs to an autonomous Light Emitting technology.
At present, different types of FMMs (Fine Metal masks) are usually adopted to form sub-pixels with corresponding colors by evaporation. However, due to the limitation of the minimum opening of the FMM and the limitation of the minimum precision of the evaporation process, the size of the formed sub-pixels cannot be small enough, so that the number of the sub-pixels is also limited, and the resolution of the OLED display panel is low, so that the image quality of the OLED display panel is poor.
Therefore, it is necessary to provide a display panel, a mask set and a display device that can improve the resolution of the OLED display panel.
Disclosure of Invention
The invention aims to provide a display panel, a mask plate set and a display device, wherein each unit region is set to comprise a plurality of sub-unit regions, a first sub-pixel close to the center of the corresponding unit region, a second sub-pixel close to the first edge of the corresponding sub-unit region and a third sub-pixel close to the second edge of the corresponding sub-unit region are arranged in each sub-unit region, and two adjacent second sub-pixels and two adjacent third sub-pixels are arranged on two sides of the boundary of two adjacent unit regions, so that the problem that the resolution of the OLED display panel is low due to the limitation of the existing sub-pixels to the minimum opening of FMM and the limitation of the minimum precision of an evaporation process is solved.
An embodiment of the present invention provides a display panel, where the display panel includes a substrate and a pixel layer disposed on the substrate, the pixel layer includes a plurality of unit regions, an outer contour of each of the unit regions is a regular polygon, and each of the unit regions includes:
a plurality of sub-unit regions, each of the sub-unit regions being defined by a connection line between a center of a corresponding unit region and midpoints of two adjacent sides, and the two adjacent sides, and each of the sub-unit regions including a first side and a second side, the first side and the second side being far from the center of the corresponding unit region, and each of the sub-unit regions including:
a first sub-pixel located at a central region of the corresponding unit region;
a second sub-pixel located at a first edge region of a corresponding sub-unit region, the first edge region being adjacent to the first edge;
a third sub-pixel located at a second edge region of the corresponding sub-unit region, the second edge region being close to the second edge;
wherein, two sides of the boundary of two adjacent unit areas in the plurality of unit areas comprise two adjacent second sub-pixels and two adjacent third sub-pixels.
In an embodiment, each edge of each unit area includes the second sub-pixel and the third sub-pixel.
In one embodiment, each of the sub-unit regions further includes:
a fourth sub-pixel located at a third edge region of the corresponding sub-unit region, the third edge region being near an intersection of the first edge and the second edge.
In an embodiment, in the unit areas arranged around one of the vertices of one of the unit areas, two sides of a boundary between two adjacent unit areas include two adjacent fourth sub-pixels.
In an embodiment, an outer contour of each of the plurality of unit regions is a regular triangle, a regular quadrangle, or a regular hexagon.
In one embodiment, the area of the first sub-pixel is larger than the area of the second sub-pixel, and the area of the first sub-pixel is larger than the area of the third sub-pixel, wherein the first sub-pixel is blue, the second sub-pixel is green, and the third sub-pixel is red.
In an embodiment, the display panel further includes a pixel defining layer disposed on the substrate, the pixel defining layer is located between any adjacent two of the first sub-pixel, the second sub-pixel and the third sub-pixel, and the pixel defining layer is configured to block any adjacent two of the first sub-pixel, the second sub-pixel and the third sub-pixel.
In an embodiment, the pixel defining layer is further located between two adjacent first sub-pixels, between two adjacent second sub-pixels, and between two adjacent third sub-pixels, and the pixel defining layer is configured to block the two adjacent first sub-pixels, the two adjacent second sub-pixels, and the two adjacent third sub-pixels.
An embodiment of the present invention further provides a mask set, configured to prepare the display panel described in any one of the above paragraphs, where the mask set includes:
the first mask plate is used for preparing the first sub-pixels and comprises a plurality of first openings, and each first opening in the plurality of first openings is opposite to the plurality of first sub-pixels in the same unit area;
the second mask plate is used for preparing the second sub-pixels and comprises a plurality of second openings, and each second opening in the plurality of second openings is opposite to two adjacent second sub-pixels positioned on two sides of the junction of two adjacent unit areas;
and the third mask plate is used for preparing the third sub-pixels and comprises a plurality of third openings, and each of the third openings is opposite to two adjacent sub-pixels positioned on two sides of the junction of two adjacent unit areas.
Embodiments of the present invention also provide a display device, which includes the display panel as described in any one of the above.
The invention provides a display panel, a mask set and a display device, wherein a pixel layer comprises a plurality of unit areas in a regular polygon shape, each unit area comprises a plurality of sub-unit areas, a corresponding sub-unit area is respectively defined by the center of the unit area, the connecting line of the midpoints of the two adjacent sides and the two adjacent sides, each sub-unit area comprises a first side and a second side which are far away from the center of the corresponding unit area, each sub-unit area comprises a first sub-pixel positioned in the center area of the corresponding unit area, a second sub-pixel positioned in the corresponding sub-unit area and close to the first side, and a third sub-pixel positioned in the corresponding sub-unit area and close to the second side, and two sides of the junction of two adjacent unit areas comprise two adjacent second sub-pixels and two adjacent third sub-pixels. In this way, in the plurality of first sub-pixels located in the central region of each unit region, each first sub-pixel can be used as the first sub-pixel in the corresponding sub-unit region, two adjacent second sub-pixels located on two sides of the boundary of two adjacent unit regions, and one second sub-pixel and one third sub-pixel located on the same side of the boundary can be used as the second sub-pixel and the third sub-pixel in one of the unit regions, so that the sub-pixels in the invention are not limited by the limitation of the minimum opening of the FMM and the limitation of the minimum precision of the evaporation process, and the resolution of the display panel is improved.
Drawings
The invention is further illustrated by the following figures. It should be noted that the drawings in the following description are only for illustrating some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
Fig. 1 is a schematic cross-sectional view of a display panel according to an embodiment of the present invention.
Fig. 2 is a schematic top view of a pixel layer of a display panel according to an embodiment of the invention.
Fig. 3 is a schematic top view of a pixel layer of another display panel according to an embodiment of the invention.
Fig. 4 is a schematic top view illustrating a pixel layer of another display panel according to an embodiment of the invention.
Fig. 5 is a schematic cross-sectional view of another display panel according to an embodiment of the invention.
Fig. 6 is a schematic cross-sectional view of another display panel according to an embodiment of the invention.
Fig. 7 is a schematic top view of a mask blank according to an embodiment of the present invention.
Fig. 8 is a schematic top view of another mask blank according to an embodiment of the present invention.
Fig. 9 is a schematic top view of another mask blank according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "longitudinal", "peripheral", and the like, indicate orientations or positional relationships based on those shown in the drawings, for example, where "upper" is merely a surface above an object, specifically refers to a surface directly above, obliquely above, or above, as long as it is above the object level, and the above orientations or positional relationships are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the drawings, elements having similar structures are denoted by the same reference numerals. Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application.
It should be noted that the drawings only provide the structures and/or steps which are relatively closely related to the present invention, and some details which are not related to the present invention are omitted, so as to simplify the drawings and make the present invention clear, but not to show that the actual devices and/or methods are the same as the drawings and are not limitations of the actual devices and/or methods.
The present invention provides a display panel including, but not limited to, the following embodiments and combinations between the following embodiments.
In one embodiment, as shown in fig. 1 to 4, the display panel 00 includes a substrate 10 and a pixel layer 20 disposed on the substrate 10. Specifically, the pixel layer 20 includes a plurality of unit regions 201, an outer contour of each unit region 201 of the plurality of unit regions 201 is a regular polygon, and each unit region 201 includes: a plurality of sub-unit areas 202, each sub-unit area 202 of the plurality of sub-unit areas 202 is defined by a connecting line between the center of the corresponding unit area 201 and the midpoint of the two adjacent sides, and the two adjacent sides, each sub-unit area 202 includes a first side 203 and a second side 204, and the first side 203 and the second side 204 are both far away from the center of the corresponding unit area. Each of the sub-unit regions 202 includes: a first sub-pixel 2021, the first sub-pixel 2021 being located in a central region of the corresponding unit region 201; a second sub-pixel 2022, the second sub-pixel 2022 being located at a first edge region of the corresponding sub-unit region 202, the first edge region being close to the first edge 203; a third sub-pixel 2023, wherein the third sub-pixel 2023 is located at a second edge region of the corresponding sub-unit region 202, and the second edge region is close to the second edge 204. Two adjacent second sub-pixels 2022 and two adjacent third sub-pixels 2023 are included on two sides of a boundary 01 between two adjacent unit areas 201 in the plurality of unit areas 201.
It can be understood that, since the outer contour of each unit region 201 is a regular polygon, the plurality of sub-unit regions 202 in each unit region 201 are disposed around the center of the unit region 201, and the first sub-pixel 2021, the second sub-pixel 2022, and the third sub-pixel 2023 in the plurality of sub-unit regions 202 are disposed in the same manner, the uniformity and symmetry of the arrangement of the sub-pixels in the pixel layer can be improved, which is beneficial to the uniformity of the display screen of the display panel 00.
The specific shapes of the first sub-pixel 2021, the second sub-pixel 2022, and the third sub-pixel 2023 are not limited, and may be, for example, a sector, a rectangle, a triangle, or other shapes.
Specifically, since the plurality of first sub-pixels 2021 in each unit region 201 are all located at the center of the unit region 201, and the defining manner of the plurality of sub-unit regions 202 in each unit region 201 is known, two edges of the first sub-pixels 2021 are respectively located on a connecting line between a midpoint of the corresponding unit region 201 and midpoints of two adjacent edges, and other edges of the first sub-pixels 2021 may further include at least one of a curve and a straight line. Taking the other side of the first sub-pixel 2021 as an arc as an example, further, lengths of two sides of the first sub-pixel 2021 respectively located on a connecting line between a midpoint of the corresponding unit region 201 and midpoints of two adjacent sides may be equal, that is, an outer contour of the first sub-pixel 2021 is a fan shape, and a central angle corresponding to the fan shape is equal to an angle of the corresponding sub-unit region 202 close to the center of the corresponding unit region 201; still further, the degree of the angle of the sub-unit areas 202 near the center of the corresponding unit area 201 may be divided by pi, so that an integral number of first sub-pixels 2021 may be disposed around each unit area 201, and two adjacent first sub-pixels 2021 in the integral number of first sub-pixels 2021 have a common edge, that is, the outer contour of the whole first sub-pixels 2021 in each unit area 201 is circular, which is favorable for the uniformity of the display screen of the display panel 00.
Specifically, since the second sub-pixels 2022 are located in the first edge region of the corresponding sub-unit region 202 close to the first edge 203, and two sides of the boundary 01 between two adjacent unit regions 201 include two adjacent second sub-pixels 2022, that is, two adjacent second sub-pixels 2022 on two sides of the boundary 01 between two adjacent unit regions 201 may be symmetrical about the boundary 01. Further, one of the edges of the second sub-pixel 2022 may be located on the first edge 203, for example, when the outer contour of the second sub-pixel 2022 is semicircular, the outer contour of two adjacent second sub-pixels 2022 on two sides of the boundary 01 between two adjacent unit areas 201 is circular. Similarly, the shape of the third sub-pixel 2023 may refer to the related description above regarding the shape of the second sub-pixel 2022. Further, the second sub-pixel 2022 and the third sub-pixel 2023 in each sub-unit region 202 may be symmetrical with respect to a line connecting the center and the opposite vertex of the corresponding unit region 201, so as to further improve the uniformity of the display screen of the display panel 00.
In one embodiment, as shown in fig. 2 to 4, each edge of each unit region 201 includes the second sub-pixel 2022 and the third sub-pixel 2023. It is understood that each side of each unit area 201 may include two sub-pixels, i.e. the sub-pixels on each side of each unit area 201 are of a relatively rich type, and for example, the second sub-pixel 2022 and the third sub-pixel 2023 on each side of each unit area 201 and the first sub-pixel 2021 located at the center of the unit area 201 may form a minimum display unit for displaying images. Further, when each of the first side 203 and the second side 204 of each unit area 201 includes at least one of the second sub-pixels 2022 and at least one of the third sub-pixels 2023, the plurality of second sub-pixels 2022 and the plurality of third sub-pixels 2023 may be alternately arranged on the plurality of sides of the corresponding unit area 201, so as to avoid a loss of resolution caused by the accumulation of the same sub-pixel.
In one embodiment, as shown in fig. 2 to 4, each sub-unit area 202 further includes a fourth sub-pixel 2024, and the fourth sub-pixel 2024 is located at a third edge region of the corresponding sub-unit area 202, where the third edge region is close to an intersection of the first edge 203 and the second edge 204. Of course, it can also be understood that the plurality of fourth sub-pixels 2024 in each unit region 201 are located in a region near a top corner of the unit region 201, that is, two sides of the fourth sub-pixels 2024 are located on the first side 203 and the second side 204 of the corresponding sub-unit region 202, respectively. The other edge of the fourth sub-pixel 2024 may further include at least one of a curved line and a straight line. Taking the other side of the fourth sub-pixel 2024 as an arc line as an example, further, the lengths of the two sides of the first side 203 and the second side 204 of the corresponding unit region 201 in the fourth sub-pixel 2024 may be equal, that is, the outer contour of the fourth sub-pixel 2024 is a fan shape, and the central angle corresponding to the fan shape is equal to the vertex angle of the corresponding unit region 201.
In an embodiment, as shown in fig. 2 to 4, in the plurality of unit areas 201 surrounding one of the vertices of one of the unit areas 201, two sides of a boundary between two adjacent unit areas 201 include two adjacent fourth sub-pixels 2024. It is understood that the plurality of fourth sub-pixels 2024 in each unit area 201 may be reasonably arranged according to the specific shape and arrangement of the plurality of unit areas 201. For example, in order to fully utilize the space of the pixel layer 20, the plurality of unit regions 201 may be complementarily configured, wherein one vertex of one unit region 201 may be completely surrounded by the plurality of unit regions 201, that is, the degree of the vertex angle of the unit region 201 may be divided by pi, such that an integral number of fourth sub-pixels 2024 may be disposed around one vertex of one unit region 201, and two adjacent fourth sub-pixels 2024 of the integral number of fourth sub-pixels 2024 have a common side, that is, the outer contour of the integral number of fourth sub-pixels 2024 around one vertex of one unit region 201 is circular, which is beneficial to the uniformity of the display screen of the display panel 00.
In one embodiment, the area of the first sub-pixel 2021 is larger than the area of the second sub-pixel 2022, and the area of the first sub-pixel 2021 is larger than the area of the third sub-pixel 2023, wherein the first sub-pixel 2021 is blue, the second sub-pixel 2022 is green, and the third sub-pixel 2023 is red. Wherein the area of the second sub-pixel 2022 and the area of the third sub-pixel 2023 may be equal or unequal. Further, when each sub-unit region 202 further includes a fourth sub-pixel 2024, the area of the fourth sub-pixel 2024 may be smaller than the smaller of the area of the second sub-pixel 2022 and the area of the third sub-pixel 2023, and the fourth sub-pixel 2024 may be white.
The color, such as red, green, blue, white, etc., refers to the color that the corresponding sub-pixels, such as the third sub-pixel 2023, the second sub-pixel 2022, the first sub-pixel 2021, and the fourth sub-pixel 2024, etc., can present themselves under certain conditions, for example, for an OLED display panel, the sub-pixels have a structure and a function similar to those of an organic electroluminescent diode, and the color refers to the corresponding color that the sub-pixels can emit under the state of operating voltage. It is understood that the sub-pixels with suitable sizes can be set according to the luminous efficiency and the lifetime of the sub-pixels with different colors, and the size of the sub-pixels can be inversely related to the luminous efficiency and the lifetime of the sub-pixels, for example, the luminous efficiency and the lifetime of the first sub-pixel 2021 with blue color are much smaller than those of the second sub-pixel 2022 with green color and the third sub-pixel 2023 with red color, so the area of the first sub-pixel 2021 can be larger than that of the second sub-pixel 2022 and larger than that of the third sub-pixel 2023.
On the other hand, since the plurality of first sub-pixels 2021 each having a blue color in each unit region 201 are disposed in the center region of the unit region 201, the plurality of first sub-pixels 2021 in each unit region 201 can be simultaneously prepared through the same opening; because two adjacent second sub-pixels 2022 which are both green and two adjacent third sub-pixels 2023 which are both red are arranged on two sides of the boundary 01 of two adjacent unit areas 201, two adjacent second sub-pixels 2022 which are both green and two adjacent two sides of the boundary 01 of two adjacent unit areas 201 can also be simultaneously prepared through the same opening, and two adjacent third sub-pixels 2023 which are both red and two adjacent two sides of the boundary 01 of two adjacent unit areas 201 can also be simultaneously prepared through the same opening. It should be noted that, since each sub-unit region 202 includes sub-pixels of at least three colors, that is, each sub-unit region 202 can already be used as a minimum display unit to achieve normal display of a full-color image, that is, a plurality of first sub-pixels 2021 that are simultaneously prepared through the same opening can be respectively used as blue sub-pixels in a corresponding plurality of sub-unit regions 202; similarly, two second sub-pixels 2022 that pass through the same opening and are prepared at the same time can be respectively used as green sub-pixels in the corresponding two sub-unit regions 202; similarly, two third sub-pixels 2023 that pass through the same opening and are prepared at the same time can be respectively used as red sub-pixels in the corresponding two sub-unit regions 202; further, when each sub-unit area 202 further includes the fourth pixel, the plurality of fourth sub-pixels 2021 that are simultaneously prepared through the same opening may be respectively used as the white sub-pixels in the corresponding plurality of sub-unit areas 202. Therefore, in this embodiment, a plurality of sub-pixels for the same color in the plurality of unit areas 202 can be simultaneously manufactured through the same opening, and the resolution of the display panel 00 is improved.
In one embodiment, as shown in fig. 2 to 4, an outer contour of each unit region 201 of the plurality of unit regions 201 is a regular triangle, a regular quadrangle, or a regular hexagon.
Specifically, as shown in fig. 2, the outer contour of each of the plurality of unit regions 201 is a regular triangle, the plurality of unit regions 201 in the regular triangle located in the same row are alternately arranged in the upward and downward directions of the vertex angle, and the plurality of unit regions 201 in two adjacent rows are symmetrical with respect to the boundary line between the two adjacent rows, that is, six unit regions 201 may be disposed around one vertex in one of the unit regions 201, and the angle of the six unit regions 201 near the vertex is 60 °. Further, three sub-unit regions 202 may be defined by connecting midpoints of three sides of the unit region 201 having a regular trilateral shape to midpoints of the unit regions 201, respectively, and an angle of the three sub-unit regions 202 close to a center of the corresponding unit region 201 is 120 ° and an angle of the three sub-unit regions 202 far from the center of the corresponding unit region 201 is 60 °.
For example, the three first sub-pixels 2021 located in the center region of the corresponding unit region 201 may have a fan shape with a central angle of 120 °, that is, the three first sub-pixels 2021 passing through the same opening and prepared simultaneously may be respectively used as blue sub-pixels included in the three sub-unit regions 202 in the same unit region 201. For another example, two adjacent second sub-pixels 2022 and two adjacent third sub-pixels 2023 located on two sides of any one of three sides of the corresponding unit region 201 may be semicircular, that is, two second sub-pixels 2022 or two third sub-pixels 2023 that pass through the same opening and are prepared at the same time may be used as green sub-pixels or red sub-pixels included in two sub-unit regions 202 in two different unit regions 201. For another example, the three fourth sub-pixels 2024 respectively located at the three top corners of the corresponding unit region 201 may have a fan shape with a central angle of 60 °, that is, the three fourth sub-pixels 2024 passing through the same opening and prepared simultaneously may be respectively used as white sub-pixels included in the three sub-unit regions 202 in the three different unit regions 201.
Specifically, as shown in fig. 3, the outer contour of each of the plurality of unit areas 201 is a regular quadrangle, the plurality of unit areas 201 are arranged in a matrix, the plurality of unit areas 201 in two adjacent rows are symmetrical with respect to the boundary line between the two adjacent rows, that is, four unit areas 201 may be disposed around one vertex in one of the unit areas 201, and the angle of the four unit areas 201 near the vertex is 90 °. Further, four sub-unit regions 202 may be defined by connecting the midpoints of the four sides of the unit region 201 having the regular quadrilateral shape to the midpoints of the unit regions 201, respectively, and an angle of the four sub-unit regions 202 close to the center of the corresponding unit region 201 is 90 ° and an angle of the four sub-unit regions 202 far from the center of the corresponding unit region 201 is 90 °.
For example, the four first sub-pixels 2021 located in the center region of the corresponding unit region 201 may have a fan shape with a central angle of 90 °, that is, the four first sub-pixels 2021 passing through the same opening and prepared simultaneously may be respectively used as blue sub-pixels included in the four sub-unit regions 202 in the same unit region 201. For another example, two adjacent second sub-pixels 2022 and two adjacent third sub-pixels 2023 located on two sides of any one of the four sides of the corresponding unit region 201 may be semicircular, and particularly, refer to the related description about here in fig. 2. For another example, the four fourth sub-pixels 2024 respectively located at the four top corners of the corresponding unit region 201 may have a fan shape with a central angle of 90 °, that is, the four fourth sub-pixels 2024 passing through the same opening and prepared simultaneously may be respectively used as white sub-pixels included in the four sub-unit regions 202 in the four different unit regions 201.
Specifically, as shown in fig. 4, the outer contour of each of the plurality of unit regions 201 is a regular hexagon, and two adjacent columns of the plurality of unit regions 201 in the plurality of unit regions 201 are longitudinally spaced by half of the unit regions 201, that is, three unit regions 201 may be disposed around one of the vertices in one of the unit regions 201, and the angle of the three unit regions 201 near the vertices is 120 °. Further, six sub-unit regions 202 may be defined by connecting midpoints of six sides of the unit region 201 in the shape of a regular hexagon with midpoints of the unit regions 201, and an angle of the six sub-unit regions 202 close to a center of the corresponding unit region 201 is 60 ° and an angle of the six sub-unit regions 202 away from the center of the corresponding unit region 201 is 120 °.
For example, the six first sub-pixels 2021 located in the center region of the corresponding unit region 201 may have a fan shape with a central angle of 60 °, that is, the six first sub-pixels 2021 passing through the same opening and prepared simultaneously may be respectively used as the blue sub-pixels included in the six sub-unit regions 202 in the same unit region 201. For another example, two adjacent second sub-pixels 2022 and two adjacent third sub-pixels 2023 located on two sides of any one of six sides of the corresponding unit region 201 may be semicircular, and particularly, with reference to the related description in fig. 2, it should be noted that, since three unit regions 201 are disposed around one vertex in one of the unit regions 201, that is, two adjacent second sub-pixels 2022 or two adjacent third sub-pixels 2023 are inevitably disposed around the vertex, two regions of two adjacent sides in the corresponding unit region 201 respectively close to a vertex in the middle are both disposed with the second sub-pixels 2022 or the third sub-pixels 2023, which is allowed. For another example, the six fourth sub-pixels 2024 respectively located at the six top corners of the corresponding unit region 201 may have a fan shape with a central angle of 120 °, that is, the six fourth sub-pixels 2024 passing through the same opening and prepared simultaneously may be respectively used as white sub-pixels included in the three sub-unit regions 202 in the three different unit regions 201.
In an embodiment, as shown in fig. 5, fig. 5 can be understood as a schematic longitudinal section along a line 02 in fig. 2, the display panel further includes a pixel defining layer 30, the pixel defining layer 30 is disposed on the substrate 10, the pixel defining layer 30 is disposed between any adjacent two of the first sub-pixel 2021, the second sub-pixel 2022 and the third sub-pixel 2023, and the pixel defining layer 30 is used for blocking any adjacent two of the first sub-pixel 2021, the second sub-pixel 2022 and the third sub-pixel 2023. Specifically, the pixel defining layer 30 includes a plurality of first pixel defining parts 301, and the plurality of first pixel defining parts 301 are located between any adjacent two of the first sub-pixel 2021, the second sub-pixel 2022, and the third sub-pixel 2023. Further, since the constituent material of the plurality of different color sub-pixels is generally a hydrophilic material, the plurality of first pixel defining parts 301 may be made of an organic resin material having hydrophobicity, so as to prevent color mixing between the different color sub-pixels.
In an embodiment, as shown in fig. 6, fig. 6 can be understood as a schematic longitudinal section along a line 02 in fig. 2, the pixel defining layer 30 is further located between two adjacent first sub-pixels 2021, between two adjacent second sub-pixels 2022, and between two adjacent third sub-pixels 2023, and the pixel defining layer is used to block the two adjacent first sub-pixels 2021, the two adjacent second sub-pixels 2022, and the two adjacent third sub-pixels 2023. Specifically, the pixel defining layer 30 includes a plurality of second pixel defining parts 302, and the plurality of second pixel defining parts 302 are located between two adjacent first sub-pixels 2021, between two adjacent second sub-pixels 2022, and between two adjacent third sub-pixels 2023. Further, since the anode layer between the pixel layer 20 and the substrate 10 may be conductive, in order to avoid mutual interference between a voltage between two adjacent first sub-pixels 2021, a voltage between two adjacent second sub-pixels 2022, and a voltage between two adjacent third sub-pixels 2023, a composition material of the second pixel definition part 302 may be an insulating material.
It should be noted that, in order to ensure the integrity and the whole area of the plurality of sub-pixels that are simultaneously prepared through the same opening, the upper surface of the second pixel defining part 302 may be no higher than the upper surfaces of the corresponding plurality of sub-pixels, so that the plurality of sub-pixels that are simultaneously prepared through the same opening are disposed in contact with each other; further, the second pixel defining portion 302 may be made of a hydrophilic material, so that a plurality of sub-pixels passing through the same opening and being fabricated at the same time may be more coherent.
The invention provides a mask set for preparing a display panel 00 as described in any one of the above, including but not limited to the following embodiments and combinations between the following embodiments.
In an embodiment, the mask set is used for preparing the display panel 00 shown in fig. 3, and as shown in fig. 7 to 9, the mask set includes: a first mask 100, where the first mask 100 is used to prepare the first sub-pixels 2021, as shown in fig. 7, the first mask 100 includes a plurality of first openings 110, and each of the plurality of first openings 110 is disposed opposite to a plurality of first sub-pixels 2021 located in a same unit region 201; a second mask 200, where the second mask 200 is used to prepare the second sub-pixels 2022, as shown in fig. 8, the second mask 200 includes a plurality of second openings 210, and the second openings 210 are disposed opposite to two adjacent second sub-pixels 2022 located at two sides of a boundary 01 between two adjacent unit regions 201; a third mask 300, where the third mask 300 is used to prepare the third sub-pixels 2023, as shown in fig. 9, the third mask 300 includes a plurality of third openings 310, and the third openings 310 are disposed opposite to two adjacent third sub-pixels 2023 located on two sides of a junction 01 between two adjacent unit regions 201.
Taking the first mask 100 as an example for description, the position, shape and size of each first opening 110 in the first mask 100 are all consistent with the position, shape and size of the corresponding plurality of first sub-pixels 2021, that is, all the first sub-pixels 2021 in the pixel layer 20 can be simultaneously prepared through the first mask 100, and the plurality of first sub-pixels 2021 which are simultaneously prepared through the same first opening 110 can be respectively used as blue sub-pixels in the corresponding plurality of sub-unit regions 202. Similarly, a plurality of the second sub-pixels 2022, which are simultaneously prepared through the same second opening 210, may be respectively used as green sub-pixels in the two corresponding sub-unit regions 202, and two third sub-pixels 2023, which are simultaneously prepared through the same third opening 310, may be respectively used as red sub-pixels in the two corresponding sub-unit regions 202.
In an embodiment, the plurality of first openings 110, the plurality of second openings 210, and the plurality of third openings 310 may be integrated on a mask, that is, the plurality of first sub-pixels 2021, the plurality of second sub-pixels 2022, and the plurality of third sub-pixels 2023 may be time-shared or prepared by using a mask.
It can be understood that the mask in the mask set is generally an FMM, and the size and number of the minimum openings of the FMM define the size and number of the corresponding sub-pixels, but any opening in the mask set in this embodiment may simultaneously prepare a plurality of corresponding sub-pixels at a time, and the plurality of corresponding sub-pixels simultaneously prepared at a time may respectively include a plurality of corresponding different minimum display units, that is, a plurality of adjacent sub-pixels of the same color may be prepared through the same opening in the mask set in this embodiment, so that the limitation of the opening is small when preparing the pixel layer 20 in this embodiment, and the resolution of the display panel 00 may be improved under the limitation of the size and number of the minimum openings of the existing FMM.
The present invention provides a display device including, but not limited to, the display panel 00 as described in any of the above.
The invention provides a display panel, a mask set and a display device, wherein a pixel layer comprises a plurality of unit areas in a regular polygon shape, each unit area comprises a plurality of sub-unit areas, a corresponding sub-unit area is respectively defined by the center of the unit area, the connecting line of the midpoints of the two adjacent sides and the two adjacent sides, each sub-unit area comprises a first side and a second side which are far away from the center of the corresponding unit area, each sub-unit area comprises a first sub-pixel positioned in the center area of the corresponding unit area, a second sub-pixel positioned in the corresponding sub-unit area and close to the first side, and a third sub-pixel positioned in the corresponding sub-unit area and close to the second side, and two sides of the junction of two adjacent unit areas comprise two adjacent second sub-pixels and two adjacent third sub-pixels. In this way, in the plurality of first sub-pixels located in the central region of each unit region, each first sub-pixel can be used as the first sub-pixel in the corresponding sub-unit region, two adjacent second sub-pixels located on two sides of the boundary of two adjacent unit regions, and one second sub-pixel and one third sub-pixel located on the same side of the boundary can be used as the second sub-pixel and the third sub-pixel in one of the unit regions, so that the sub-pixels in the invention are not limited by the limitation of the minimum opening of the FMM and the limitation of the minimum precision of the evaporation process, and the resolution of the display panel is improved.
The display panel, the mask set and the display device provided by the embodiment of the invention are described in detail, a specific example is applied in the description to explain the principle and the embodiment of the invention, and the description of the embodiment is only used for helping to understand the technical scheme and the core idea of the invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A display panel, comprising a substrate and a pixel layer disposed on the substrate, wherein the pixel layer comprises a plurality of unit regions, an outer contour of each unit region in the plurality of unit regions is a regular polygon, and each unit region comprises:
a plurality of sub-unit regions, each of the sub-unit regions being defined by a connection line between a center of a corresponding unit region and midpoints of two adjacent sides, and the two adjacent sides, and each of the sub-unit regions including a first side and a second side, the first side and the second side being far from the center of the corresponding unit region, and each of the sub-unit regions including:
A first sub-pixel located at a central region of the corresponding unit region;
a second sub-pixel located at a first edge region of a corresponding sub-unit region, the first edge region being adjacent to the first edge;
a third sub-pixel located at a second edge region of the corresponding sub-unit region, the second edge region being close to the second edge;
wherein, two sides of the boundary of two adjacent unit areas in the plurality of unit areas comprise two adjacent second sub-pixels and two adjacent third sub-pixels.
2. The display panel according to claim 1, wherein each of the sides of each of the unit areas includes the second sub-pixel and the third sub-pixel.
3. The display panel of claim 1, wherein each of the sub-unit regions further comprises:
a fourth sub-pixel located at a third edge region of the corresponding sub-unit region, the third edge region being near an intersection of the first edge and the second edge.
4. The display panel according to claim 3, wherein, of the unit regions disposed around one of the vertices of one of the unit regions, two sides of a boundary between two adjacent unit regions include two adjacent fourth sub-pixels.
5. The display panel according to claim 1, wherein an outer contour of each of the plurality of unit regions is a regular triangle, a regular quadrangle, or a regular hexagon.
6. The display panel of claim 1, wherein the first sub-pixel has an area greater than the second sub-pixel area and an area greater than the third sub-pixel area, wherein the first sub-pixel is blue, the second sub-pixel is green, and the third sub-pixel is red.
7. The display panel of claim 1, further comprising a pixel defining layer disposed on the substrate, the pixel defining layer being disposed between any adjacent ones of the first sub-pixel, the second sub-pixel, and the third sub-pixel, the pixel defining layer being configured to block any adjacent ones of the first sub-pixel, the second sub-pixel, and the third sub-pixel.
8. The display panel according to claim 7, wherein the pixel defining layer is further located between two adjacent first sub-pixels, between two adjacent second sub-pixels, and between two adjacent third sub-pixels, and the pixel defining layer is configured to block the two adjacent first sub-pixels, the two adjacent second sub-pixels, and the two adjacent third sub-pixels.
9. A mask set for manufacturing a display panel according to any one of claims 1 to 8, wherein the mask set comprises:
the first mask plate is used for preparing the first sub-pixels and comprises a plurality of first openings, and each first opening in the plurality of first openings is opposite to the plurality of first sub-pixels in the same unit area;
the second mask plate is used for preparing the second sub-pixels and comprises a plurality of second openings, and each second opening in the plurality of second openings is opposite to two adjacent second sub-pixels positioned on two sides of the junction of two adjacent unit areas;
and the third mask plate is used for preparing the third sub-pixels and comprises a plurality of third openings, and each of the third openings is opposite to two adjacent sub-pixels positioned on two sides of the junction of two adjacent unit areas.
10. A display device characterized in that it comprises a display panel according to any one of claims 1 to 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010687348.8A CN111864123B (en) | 2020-07-16 | 2020-07-16 | Display panel, mask set and display device |
| PCT/CN2020/126643 WO2022011895A1 (en) | 2020-07-16 | 2020-11-05 | Display panel, mask group, and display apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010687348.8A CN111864123B (en) | 2020-07-16 | 2020-07-16 | Display panel, mask set and display device |
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| CN111864123B CN111864123B (en) | 2021-09-24 |
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| WO2022011895A1 (en) * | 2020-07-16 | 2022-01-20 | 武汉华星光电半导体显示技术有限公司 | Display panel, mask group, and display apparatus |
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| CN115449747B (en) * | 2022-10-19 | 2024-02-13 | 云谷（固安）科技有限公司 | Precise mask and manufacturing method thereof |
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| CN111864123B (en) * | 2020-07-16 | 2021-09-24 | 武汉华星光电半导体显示技术有限公司 | Display panel, mask set and display device |
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| CN111864123B (en) | 2021-09-24 |
| WO2022011895A1 (en) | 2022-01-20 |
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