CN109300965B - Display panel, display device and manufacturing method of display panel - Google Patents
Display panel, display device and manufacturing method of display panel Download PDFInfo
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- CN109300965B CN109300965B CN201811261707.2A CN201811261707A CN109300965B CN 109300965 B CN109300965 B CN 109300965B CN 201811261707 A CN201811261707 A CN 201811261707A CN 109300965 B CN109300965 B CN 109300965B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000000758 substrate Substances 0.000 claims abstract description 68
- 239000002346 layers by function Substances 0.000 claims abstract description 53
- 239000010410 layer Substances 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims description 16
- 238000004806 packaging method and process Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 14
- 238000012360 testing method Methods 0.000 claims description 12
- 238000000059 patterning Methods 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000005538 encapsulation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 12
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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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
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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
- H10K59/80—Constructional details
- H10K59/88—Dummy elements, i.e. elements having non-functional features
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Abstract
The application provides a display panel, a display device and a manufacturing method of the display panel, wherein the display panel comprises: a substrate and a laminated structure formed on the substrate; a first layer of the laminated structure adjacent to the substrate includes a first functional layer and a first marking unit; the second layer far away from the substrate in the laminated structure comprises a second functional layer and a second marking unit; the substrate is defined with a display area and a frame area surrounding the display area, the first functional layer and the second functional layer are located in the display area, and the first mark unit and the second mark unit are located in the frame area. The performance of the display panel is not affected by the arrangement of the marking units in the display panel, and the mother board of the display panel can be designed in a zero layout mode.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a display panel, a display device, and a method for manufacturing the display panel.
Background
In the manufacturing process of the display panel, the cover plate motherboard and the substrate motherboard are packaged and combined, and then the motherboard is cut to obtain a single display panel. In order to save materials, display panels on a motherboard are developing towards zero typesetting, the zero typesetting means that the distance between the display panels is zero or approaches zero, trimming is not needed after cutting, and the display panel with the designed size is obtained after cutting.
For a zero-typesetting motherboard, the marking units set in the process usually affect the performance of the finally obtained display panel, and currently, no better scheme is available for the placement of the marking units.
Disclosure of Invention
The application provides a display panel, a display device and a manufacturing method of the display panel, which aim to solve the problem that a marking unit arranged in a display panel manufacturing process influences the performance of the display panel in the prior art.
In order to solve the above technical problem, the present application provides a display panel, including: a substrate and a laminated structure formed on the substrate; a first layer of the laminated structure adjacent to the substrate includes a first functional layer and a first marking unit; the second layer far away from the substrate in the laminated structure comprises a second functional layer and a second marking unit; the substrate is defined with a display area and a frame area surrounding the display area, the first functional layer and the second functional layer are located in the display area, and the first mark unit and the second mark unit are located in the frame area.
The sum of the thicknesses of the first marking unit and the second marking unit is equal to the sum of the thicknesses of the first functional layer and the second functional layer, and preferably, orthographic projections of the first marking unit and the second marking unit on the substrate do not overlap.
The sum of the thicknesses of the first marking unit and the second marking unit is smaller than the sum of the thicknesses of the first functional layer and the second functional layer, and preferably orthographic projections of the first marking unit and the second marking unit on the substrate are overlapped.
The display panel further comprises a functional outer frame and a packaging structure; wherein, the functional outline border is positioned in the non-display area and surrounds the display area; the packaging structure is formed on the laminated structure and comprises a packaging outer frame; the packaging outer frame is positioned in the non-display area and surrounds the functional outer frame; the first mark unit and/or the second mark unit are/is arranged between the outer frame of the package and the edge of the substrate or between the outer frame of the package and the display area.
The first marking unit and/or the second marking unit positioned between the outer packaging frame and the edge of the substrate extend to the edge of the substrate.
The orthographic projection of the first mark unit and/or the second mark unit positioned between the packaging outer frame and the display area on the substrate is at least partially overlapped with the functional outer frame.
The first marking unit and/or the second marking unit are/is positioned between the packaging outer frame and the functional outer frame.
The first marking unit comprises a positioning mark or a test mark, and the second marking unit comprises a positioning mark or a test mark.
In order to solve the above technical problem, the present application provides a display device including the above display panel.
In order to solve the above technical problem, the present application provides a method for manufacturing a display panel, including: providing a substrate mother board, wherein a plurality of display areas and a frame area surrounding the display areas are defined on the substrate mother board; forming a first material layer on a substrate mother board; patterning the first material layer to obtain a first functional layer and a first mark unit, wherein the first functional layer is positioned in the display area, and the first mark unit is positioned in the frame area; forming a second material layer on the first material layer; and patterning the second material layer to obtain a second functional layer and a second marking unit, wherein the second functional layer is positioned in the display area, and the second marking unit is positioned in the frame area.
The display panel comprises a substrate and a laminated structure formed on the substrate; a first layer of the laminated structure adjacent to the substrate includes a first functional layer and a first marking unit; the second layer far away from the substrate in the laminated structure comprises a second functional layer and a second marking unit; the substrate is defined with a display area and a frame area surrounding the display area, the first functional layer and the second functional layer are located in the display area, and the first mark unit and the second mark unit are located in the frame area. The first marking unit and the second marking unit which are arranged on the mother board in the manufacturing process are arranged in the frame area of the display panel, so that the display performance of the display panel cannot be influenced by the marking units for the display panel mother board with zero typesetting.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a first structure of a display panel according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a second structure of the embodiment of the display panel shown in FIG. 1;
FIG. 3 is a schematic diagram of a third structure of the embodiment of the display panel shown in FIG. 1;
FIG. 4 is a schematic diagram of a fourth structure of the embodiment of the display panel shown in FIG. 1;
FIG. 5 is a schematic structural diagram of a motherboard corresponding to the embodiment of the display panel shown in FIG. 4;
FIG. 6 is a schematic structural diagram of an embodiment of a display device according to the present application;
FIG. 7 is a flowchart illustrating a method of manufacturing a display panel according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures. 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 application.
In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise. All directional indicators in the embodiments of the present application (such as upper, lower, left, right, front, rear, top, bottom … …) are only used to explain the relative positional relationship between the components, the movement, etc. in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
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. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The display panel is formed by cutting a huge mother board, namely, the lamination process of the display panel is carried out on the mother board to form each functional layer of the display panel, and then the mother board is cut to obtain each display panel. When forming the functional layers of the display panel, it is necessary to provide corresponding marking units for positioning or performance testing. Generally, an area is provided on the mother board for placing the marking unit, and when the display panel is finally cut, the area is cut off, that is, a part of the area is wasted by the mother board. In the application, the marking units are arranged in the frame area of the display panel, so that the zero typesetting of the motherboard can be realized, and the marking units have no influence on the display performance of the display panel.
Referring to fig. 1 and fig. 2, fig. 1 is a first structural schematic diagram of an embodiment of a display panel according to the present application.
The display panel 100 includes a substrate 11 and a stacked structure 12 formed on the substrate, the substrate 11 may be a glass substrate, a flexible substrate, or the like, and a display region 111 and a bezel region 112 surrounding the display region 111 are defined on the substrate 11.
The laminated structure 12 is formed on the substrate 11 in sequence when the display panel 100 is manufactured, wherein a first layer close to the substrate 11 includes the first functional layer 121 and the first marking unit 123, and a second layer far from the substrate 11 includes the second functional layer 123 and the second marking unit 124. Wherein, the first functional layer 121 and the second functional layer 123 are located in the display region 111 of the substrate 11; the first mark unit 123 and the second mark unit 124 are used for positioning or testing in the process, and are disposed in the frame region 112 of the substrate 11.
The functional layer may be an active layer, an electrode layer, an insulating layer, or the like. The marking units can be positioning marks, which are generally used for positioning other layers, or test marks, which are generally used for process performance testing, for example, by using test marks to optically test corresponding functional layers.
The laminated structure 12 is generally provided with a positioning mark and a testing mark in each layer, and the positioning mark and the testing mark can be the same. The size of the marking elements may be different for different sizes of display panels, and the marking elements required may be different for different manufacturing equipment used in the manufacturing process. The design idea of the marking unit is suitable for display panels with different sizes and manufacturing equipment in different manufacturing processes.
The marking unit is generally formed simultaneously with the functional layer through patterning, and the marking unit may be a solid mark or a hollow mark, so that the thickness of the marking unit may be equal to or less than that of the functional layer.
When the first mark unit 123 and the second mark unit 124 are provided, for the case that the sum of the thicknesses of the two is equal to the sum of the thicknesses of the first functional layer 121 and the second functional layer 123, in the embodiment, the first mark unit 123 and the second mark unit 124 are arranged in a staggered manner, that is, orthographic projections of the two on the substrate 11 are deviated from each other, so that the thicknesses of the first mark unit 123 and the second mark unit 124 can be prevented from influencing the thicknesses of other functional layers in the frame area 112. Of course, in other embodiments, the first mark unit 123 and the second mark unit 124 may be disposed in an overlapping manner, that is, the orthographic projections of the two on the substrate 11 are overlapped, without affecting the thicknesses of other functional layers in the frame area 112.
For the case that the sum of the thicknesses of the two functional layers is less than or equal to the sum of the thicknesses of the first functional layer 121 and the second functional layer 123, the first marking unit 123 and the second marking unit 124 may be stacked, that is, the orthographic projections of the two on the substrate 11 are overlapped, as shown in fig. 2, and fig. 2 is a second schematic structural diagram of the embodiment of the display panel shown in fig. 1. Of course, in other embodiments, the first marking unit 123 and the second marking unit 124 may be arranged in a staggered manner, that is, the orthographic projections of the two on the substrate 11 are offset from each other.
As for the frame area 112 of the display panel 100, a functional outer frame 13, such as a driving circuit in the display panel, a packaging dam in the OLED display panel, etc., is further disposed around the display area 111. The display panel 100 further includes a package structure 14, where the package structure 14 may be Frit glass package or film package, and implements package on the display area 111 and the functional outer frame 13, and a package outer frame 141 surrounding the functional outer frame 13 is formed in the frame area 112.
In this embodiment, the arrangement of the mark unit cannot affect the packaging effect, specifically, if the first mark unit 123 or the second mark unit 124 may cause the display panel to be packaged badly, the mark unit is arranged close to the display area so as to be located between the package frame 141 and the display area 111. For example, the second marking unit 124 in this embodiment may cause a bad package, and is placed at a position where the distance to the display region 111 is smaller than the distance to the edge of the substrate 11. Referring to fig. 3, fig. 3 is a schematic diagram of a third structure of the embodiment of the display panel shown in fig. 1.
At this time, for the mother board, the second mark unit 124 is not located between the two display panels 100, that is, after the mother board is cut, the second mark unit 124 is not cut. The same arrangement may be adopted if the first marking unit 123 is also likely to cause a defective package. The second marking element 124 is arranged close to the display area 111, i.e. it is ensured that the packaging structure 14 is able to completely cover the marking element when packaged.
Generally, the first mark unit 123 or the second mark unit 124 is disposed between the package frame 141 and the functional frame 13, and if the mark unit is large, the mark unit can be extended into the functional frame 13, that is, the mark unit and the orthographic projection portion of the functional frame 13 on the substrate 11 are overlapped, and at this time, it is required to ensure that the height requirement of the functional frame 13 is satisfied. Of course, the marking units may be completely disposed in the functional outer frame 13, that is, the marking units and the orthographic projection of the functional outer frame 13 on the substrate 11 completely overlap.
The first mark unit 123 or the second mark unit 124 may also be disposed between the package frame 141 and the edge of the substrate 11, in which case the first mark unit 123 or the second mark unit 124 is located outside the package frame 141 and does not overlap with the projection of the package frame 141 on the substrate. And thus does not affect the packaging effect of the display panel 100. As shown in fig. 4, fig. 4 is a fourth structural diagram of the embodiment of the display panel shown in fig. 1.
In this case, for the mother substrate 200 of the display panel 100, if the marking unit is large, the marking unit may be disposed between two adjacent substrates. In this case, after the mother substrate is cut, the first mark unit 123 and the second mark unit 124 on the display panel 100 are both mark units remaining after the cutting, which extend to the edge of the substrate 11. For example, as shown in fig. 5, fig. 5 is a schematic structural diagram of a motherboard corresponding to the embodiment of the display panel shown in fig. 4.
The inventor finds that the setting of the marking unit 124 in the above-mentioned embodiment of the display panel can be applied to the motherboard with zero typesetting, and the performance of the display panel is not affected.
The display panel can be applied to a display device, and therefore the present application also provides a display device, please refer to fig. 6, where fig. 6 is a schematic structural diagram of an embodiment of the display device of the present application.
The display device 300 of the present embodiment includes a display panel 31, which is similar to the display panel 100 of the previous embodiment and will not be described again. The display device 300 may be an electronic device capable of displaying, such as a mobile phone, a computer, a tablet, a television, and the like.
Referring to fig. 7, a manufacturing process of the display panel is shown, and fig. 7 is a schematic flow chart of an embodiment of a manufacturing method of the display panel of the present application. The manufacturing method includes the following steps.
S101: a substrate motherboard is provided.
A plurality of display areas and a frame area surrounding the display areas are defined on the substrate motherboard.
S102: a first material layer is formed on a substrate.
S103: and patterning the first material layer to obtain a first functional layer and a first marking unit. The first functional layer obtained after the patterning treatment is located in the display area, and the first marking unit is located in the frame area.
S104: a second material layer is formed on the first material layer.
S105: and patterning the second material layer to obtain a second functional layer and a second marking unit. And the second functional layer obtained after the patterning treatment is positioned in the display area, and the second marking unit is positioned in the frame area.
S106: and cutting the substrate mother board to obtain the display panel.
The structures of the different display panel embodiments described above can be implemented in the patterning process of step S103 and step S105. The mother board which can be applied to zero typesetting and is obtained by the method can not influence the performance of the display panel due to the design of the marking unit.
The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (10)
1. A display panel, comprising:
a substrate and a laminated structure formed on the substrate;
a first layer of the laminated structure adjacent to the substrate includes a first functional layer and a first marking unit;
a second layer of the laminated structure, which is far away from the substrate, comprises a second functional layer and a second marking unit;
the display panel is characterized in that a display area and a frame area surrounding the display area are defined on the substrate, the first functional layer and the second functional layer are located in the display area, the first mark unit and the second mark unit are located in the frame area, and therefore the display performance of the display panel is not affected by the first mark unit and the second mark unit for a zero-typesetting display panel mother set.
2. The display panel according to claim 1, wherein a sum of thicknesses of the first marking unit and the second marking unit is equal to a sum of thicknesses of the first functional layer and the second functional layer,
preferably, orthographic projections of the first and second marking units on the substrate are offset from each other.
3. The display panel according to claim 1, wherein a sum of thicknesses of the first marking unit and the second marking unit is smaller than a sum of thicknesses of the first functional layer and the second functional layer,
preferably, orthographic projections of the first marking unit and the second marking unit on the substrate overlap.
4. The display panel of claim 1, further comprising a functional bezel and an encapsulation structure; wherein,
the functional outer frame is positioned in the non-display area and surrounds the display area;
the packaging structure is formed on the laminated structure and comprises a packaging outer frame; the packaging outer frame is positioned in the non-display area and surrounds the functional outer frame;
the first mark unit and/or the second mark unit are/is positioned between the outer packaging frame and the edge of the substrate or between the outer packaging frame and the display area.
5. The display panel according to claim 4, wherein the first and/or second marking units between the package frame and the edge of the substrate extend to the edge of the substrate.
6. The display panel according to claim 4, wherein an orthographic projection of the first and/or second marking units on the substrate between the package outline and the display area at least partially overlaps with the functional outline.
7. The display panel according to claim 4, wherein the first mark unit and/or the second mark unit is located between the package frame and the functional frame.
8. The display panel according to claim 1, wherein the first mark unit includes a positioning mark or a test mark, and the second mark unit includes a positioning mark or a test mark.
9. A display device characterized in that it comprises a display panel according to any one of claims 1 to 8.
10. A method of manufacturing a display panel, the method comprising:
providing a substrate mother board, wherein a plurality of display areas and a frame area surrounding the display areas are defined on the substrate mother board;
forming a first material layer on the substrate motherboard;
patterning the first material layer to obtain a first functional layer and a first mark unit, wherein the first functional layer is located in the display area, and the first mark unit is located in the frame area;
forming a second material layer on the first material layer;
patterning the second material layer to obtain a second functional layer and a second marking unit, wherein the second functional layer is located in the display area, and the second marking unit is located in the frame area;
and cutting the substrate mother board to obtain the display panel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811261707.2A CN109300965B (en) | 2018-10-26 | 2018-10-26 | Display panel, display device and manufacturing method of display panel |
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| CN201811261707.2A CN109300965B (en) | 2018-10-26 | 2018-10-26 | Display panel, display device and manufacturing method of display panel |
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| CN109300965B true CN109300965B (en) | 2021-07-02 |
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| JP2007188704A (en) * | 2006-01-12 | 2007-07-26 | Seiko Epson Corp | Method of manufacturing electroluminescent device, electroluminescent device and electronic apparatus |
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