CN111383537A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN111383537A CN111383537A CN202010253966.1A CN202010253966A CN111383537A CN 111383537 A CN111383537 A CN 111383537A CN 202010253966 A CN202010253966 A CN 202010253966A CN 111383537 A CN111383537 A CN 111383537A
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- alignment mark
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- display panel
- emitting surface
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
Abstract
The application provides a display panel and a display device. The display panel comprises a light-emitting surface and a non-light-emitting surface; the light emitting surface and the non-light emitting surface are oppositely arranged; the display panel also comprises a frame area, a pixel area, a bending area and a binding area; the frame area surrounds the pixel area; the frame area is connected with the bending area; the frame area comprises at least one alignment mark group; the alignment mark group comprises a first alignment mark, a second alignment mark and a third alignment mark; the second alignment mark, the first alignment mark and the third alignment mark in the first alignment mark group are sequentially arranged in the extending direction of the pixel column in the pixel area; the bending area is bent to the non-light-emitting surface from the side of the frame area; the bending area is connected with the binding area; the binding area is arranged on the non-light-emitting surface; the binding area comprises a fourth alignment mark which is arranged corresponding to the alignment mark group; the first alignment mark is aligned with the fourth alignment mark. Thus, the alignment accuracy of the alignment mark group and the fourth alignment mark for the binding region in the extending direction of the pixel column is improved.
Description
[ technical field ] A method for producing a semiconductor device
The application relates to the technical field of display, in particular to a display panel and a display device.
[ background of the invention ]
One trend of the existing display panels is to display the display panel on a full screen.
Fig. 1 is a schematic diagram of a display panel in the prior art.
As shown in fig. 1, in the prior art, the display panel P includes a light emitting surface S. The display panel P further includes a pixel area AA and a binding area BA. The pixel area AA and the binding area BA are positioned on one side of the light-emitting surface S. The pixel area AA is used for displaying an image, and the bonding area BA is used for setting a driving chip. The binding area BA occupies a certain area on the side of the light-emitting surface S, affecting the visual effect. The flexible screen reduces the frame for improving visual effect, can reduce the frame as far as. Because the lower edge of the display screen needs a Bonding process, the frame of the part is larger, and the frame of the flexible screen is reduced by bending the Bonding area to the back of the screen body for fixing. At present, two groups of Mark are etched on a flexible screen in a common design in the industry, and when bending is carried out, the Mark is aligned and bent by calculating and grabbing the relative position on the Mark, but the bending precision of the scheme is low, and the flexible screen has the characteristic of difficult reworking, so the yield is relatively low.
[ summary of the invention ]
In order to solve the above technical problem, the present application provides a display panel and a display device.
In a first aspect, a display panel includes a light emitting surface and a non-light emitting surface;
the light emitting surface and the non-light emitting surface are oppositely arranged;
the display panel also comprises a frame area, a pixel area, a bending area and a binding area;
the frame area surrounds the pixel area;
the frame area is connected with the bending area;
the frame area comprises at least one alignment mark group;
the alignment mark group comprises a first alignment mark, a second alignment mark and a third alignment mark;
the second alignment mark, the first alignment mark and the third alignment mark in the first alignment mark group are sequentially arranged in the extending direction of the pixel column in the pixel area;
the bending area is bent to the non-light-emitting surface from the side of the frame area;
the bending area is connected with the binding area;
the binding area is arranged on the non-light-emitting surface;
the binding region comprises a fourth alignment mark which is arranged corresponding to the alignment mark group;
the first alignment mark is aligned with the fourth alignment mark.
In a second aspect, a display device includes the display panel.
In this application, the bending region is bent to the non-light-emitting surface from the side of the frame region when bending. The bending area is respectively connected with the frame area and the binding area. At this time, the binding region and the bezel region overlap. The fourth alignment mark of the binding area is arranged corresponding to the alignment mark group of the frame area. The second alignment mark, the first alignment mark and the third alignment mark are sequentially arranged in the extending direction of the pixel column. The second alignment mark is positioned on one side of the third alignment mark far away from the bending area. When the first alignment mark is aligned with the fourth alignment mark, the binding region falls at a set position in the extending direction of the pixel column. When the second alignment mark is aligned with the fourth alignment mark, the binding region exceeds the set position in the extending direction of the pixel column. When the third alignment mark is aligned with the fourth alignment mark, the binding region is not at the set position in the extending direction of the pixel column. Then, the alignment mark group and the fourth alignment mark are used for alignment of the binding region in the extending direction of the pixel column. Therefore, the setting precision of the binding region in the extending direction of the pixel column is improved by alignment, and the deviation of the binding region in the extending direction of the pixel column is avoided. Therefore, the whole bending precision is improved, poor alignment is reduced, and the size of the lower frame is further reduced.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, 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 prior art display panel;
FIG. 2 is a front view of a display panel according to an embodiment of the present invention when it is bent;
FIG. 3 is a front view of a display panel according to an embodiment of the present invention when it is unfolded;
FIG. 4 is a side view of a display panel of an embodiment of the invention when bent;
FIG. 5 is a diagram illustrating a fourth alignment mark in a display panel according to an embodiment of the present invention;
FIG. 6 is a diagram illustrating an alignment mark set in a display panel according to an embodiment of the invention;
fig. 7A to 7C are schematic diagrams illustrating an alignment mark set and a fourth alignment mark in a display panel according to an embodiment of the invention;
FIG. 8 is a flowchart illustrating an alignment method of a display panel according to an embodiment of the invention;
FIG. 9 is a front view of another display panel of an embodiment of the present invention when bent;
FIG. 10 is a front view of another display panel of an embodiment of the present invention shown unfolded;
FIG. 11 is a diagram illustrating a first set of alignment marks in a display panel according to another embodiment of the present invention;
FIG. 12 is a diagram illustrating a second set of alignment marks in a display panel according to another embodiment of the present invention;
FIGS. 13A to 13C are schematic diagrams illustrating a first set of alignment marks in another display panel according to an embodiment of the invention;
FIG. 14 is a diagram illustrating a first set of alignment marks in another display panel according to an embodiment of the present invention;
15A-15E are flowcharts of another alignment method for a display panel according to another embodiment of the present invention;
FIG. 16 is a side view of another display panel of the present invention when bent;
fig. 17 is a schematic view of a display device according to an embodiment of the invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. 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.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that although the terms first, second, etc. may be used herein to describe devices in accordance with embodiments of the present invention, these devices should not be limited by these terms. These terms are only used to distinguish one device from another. For example, a first device may also be referred to as a second device, and similarly, a second device may also be referred to as a first device, without departing from the scope of embodiments of the present invention.
The embodiment of the invention provides a display panel and a display device.
FIG. 2 is a front view of a display panel according to an embodiment of the present invention when it is bent; FIG. 3 is a front view of a display panel according to an embodiment of the present invention when it is unfolded; FIG. 4 is a side view of a display panel of an embodiment of the invention when bent; FIG. 5 is a diagram illustrating a fourth alignment mark in a display panel according to an embodiment of the present invention; FIG. 6 is a diagram illustrating an alignment mark set in a display panel according to an embodiment of the invention; fig. 7A to 7C are schematic diagrams illustrating an alignment mark set and a fourth alignment mark in a display panel according to an embodiment of the invention.
As shown in fig. 2 to 7C, the display panel 1 includes a light emitting surface 1A and a non-light emitting surface 1B; the light emitting surface 1A and the non-light emitting surface 1B are oppositely arranged; the display panel 1 further comprises a frame area 11, a pixel area 12, a bending area 13 and a binding area 14; a frame region 11 surrounds the pixel region 12; the frame area 11 is connected with the bending area 13; the frame area 11 includes at least one alignment mark set 111; the alignment mark set 111 includes a first alignment mark 1111, a second alignment mark 1112, and a third alignment mark 1113; the second alignment mark 1112, the first alignment mark 1111 and the third alignment mark 1113 in the first alignment mark group 111A are sequentially arranged in the extending direction Y of the pixel columns 121 in the pixel region 12; the bending area 13 is bent to the non-light-emitting surface 1B from the side of the frame area 11; the bending area 13 is connected with the binding area 14; the binding region 14 is arranged on the non-light-emitting surface 1B; the binding region 14 includes a fourth alignment mark 141 provided corresponding to the alignment mark group 111; the first alignment mark 1111 is aligned with the fourth alignment mark 141.
The opposing light exit surface 1A and non-light exit surface 1B are arranged in the thickness direction of the display panel 1. The light emitting surface 1A can emit light, and the non-light emitting surface 1B cannot emit light. The pixel region 12 emits light by a plurality of rows and a plurality of columns of pixels. The extending direction Y of the pixel columns 121 and the extending direction X of the pixel rows 122 in the pixel region 12 intersect with each other. The border area 11 around the pixel area 12 connects the pixel columns 121 and the pixel rows 122 by using wires. The traces of the border area 11 connect the traces of the inflection area 13. The traces of inflection region 13 connect the traces of bonding region 14. The traces of the bonding areas 14 connect to the integrated circuit 15. The integrated circuit 15 can drive the pixel region 12 through the routing of the bonding region 14 to the bezel region 11. When the bending region 13 is not bent, the frame region 11, the bending region 13, and the binding region 14 are arranged along one direction. The bending zone 13 may be bent. At this time, the binding region 14 is disposed on the non-light emitting surface 1B. The ratio of the area of the pixel region 12 to the area of the light emitting surface 1A is greater than the ratio of the area of the pixel region 12 to the area of the light emitting surface 1A plus the binding region 14. The screen ratio of the display panel 1 is enlarged.
The bending region 13 bends from the frame region 11 to the non-light-emitting surface 1B during bending. The bending region 13 connects the frame region 11 and the binding region 14, respectively. At this time, the bonding area 14 and the bezel area 11 overlap. The fourth alignment mark 141 of the binding region 14 is disposed corresponding to the alignment mark group 111 of the border region 11. The second alignment mark 1112, the first alignment mark 1111, and the third alignment mark 1113 are sequentially arranged in the extending direction Y of the pixel column 121. The second alignment mark 1112 is located on a side of the third alignment mark 1113 away from the bending region 13. When the first alignment mark 1111 is aligned with the fourth alignment mark 141, the binding region 14 falls at a set position in the extending direction Y of the pixel column 121. The substrate of the display panel 1 is transparent. As shown in fig. 7A, at this time, the orthographic projection P4 of the fourth alignment mark 141 on the light emitting surface 1A falls within the orthographic projection P1 of the first alignment mark 1111 on the light emitting surface 1A. When the second alignment mark 1112 is aligned with the fourth alignment mark 141, the binding region 14 exceeds a set position in the extending direction Y of the pixel column 121. As shown in fig. 7B, at this time, the orthographic projection P4 of the fourth alignment mark 141 on the light emitting surface 1A falls within the orthographic projection P2 of the second alignment mark 1112 on the light emitting surface 1A. When the third alignment mark 1113 is aligned with the fourth alignment mark 141, the binding region 14 is not at the set position in the extending direction Y of the pixel column 121. As shown in fig. 7C, at this time, the orthographic projection P4 of the fourth alignment mark 141 on the light emitting surface 1A falls within the orthographic projection P3 of the third alignment mark 1113 on the light emitting surface 1A. Then, the alignment mark group 111 and the fourth alignment mark 141 are used for alignment of the binding region 14 in the extending direction Y of the pixel column 121. This alignment improves the accuracy of the arrangement of the binding region 14 in the extending direction Y of the pixel column 121, and avoids the displacement of the binding region 14 in the extending direction Y of the pixel column 121.
As shown in fig. 2 to 7C, the binding region 14 is fixed to the non-light-emitting surface 1B.
In the present embodiment, the first alignment mark 1111 is aligned with the fourth alignment mark 141. The binding region 14 is at a fixed position on the non-light-emitting surface 1B. At this time, the binding region 14 is fixed to the non-light-emitting surface 1B. Specifically, the binding region 14 and the non-light-emitting surface 1B are fixed by an adhesive tape. Thus, the binding region 14 is fixed at a set position in the extending direction Y of the pixel column 121. This fixes the binding prevention region 14 from being out of the set position in the extending direction Y of the pixel column 121.
Fig. 8 is a flowchart illustrating an alignment method of a display panel according to an embodiment of the invention.
As shown in fig. 2 to 8, the alignment method 2 of the display panel includes:
step S21, bending the bending region 13 from the side of the frame region 11 to the non-light-emitting surface 1B;
step S22, the binding region 14 is disposed on the non-light emitting surface 1B;
step S23, acquiring the positions of the alignment mark group 111 and the fourth alignment mark 141 in the extending direction Y of the pixel column 121;
step S24, comparing the positions of the alignment mark group 111 and the fourth alignment mark 141 in the extending direction Y of the pixel column 121;
step S25A, adjusting the position of the binding region 14 in the extending direction Y of the pixel column 121 when the second alignment mark 1112 is aligned with the fourth alignment mark 141;
step S25B, when the third alignment mark 1113 is aligned with the fourth alignment mark 141, adjusting the position of the binding region 14 in the extending direction Y of the pixel column 121;
in step S25C, when the first alignment mark 1111 and the fourth alignment mark 141 are aligned, the binding area 14 is fixed to the non-light-emitting surface 1B.
FIG. 9 is a front view of another display panel of an embodiment of the present invention when bent; fig. 10 is a front view of another display panel according to an embodiment of the present invention when it is unfolded.
As shown in fig. 5 to 7C, 9 and 10, the frame region 11 includes two first alignment mark sets 111A. A first set of alignment marks 111A is spaced farther from the left side frame than the right side frame. The other first set of alignment marks 111A is spaced from the left border by a smaller distance than it is spaced from the right border. The two first alignment mark sets 111A respectively include a first alignment mark 1111, a second alignment mark 1112, and a third alignment mark 1113. The binding area 14 includes two fourth alignment marks 141. The first alignment mark 1111 of the first alignment mark set 111A is aligned with the fourth alignment mark 141. The first alignment mark 1111 in the other first alignment mark set 111A is aligned with the other fourth alignment mark 141. The two first alignment mark groups 111A and the two fourth alignment marks 141 are used for alignment of the binding regions 14 at the left and right sides, respectively, further improving the setting accuracy of the binding regions 14 in the extending direction Y of the pixel columns 121.
FIG. 11 is a diagram illustrating a first set of alignment marks in a display panel according to another embodiment of the present invention; FIG. 12 is a diagram illustrating a second set of alignment marks in a display panel according to another embodiment of the present invention; fig. 13A to 13C are schematic diagrams illustrating a second alignment mark set and a fourth alignment mark in another display panel according to another embodiment of the invention.
As shown in fig. 9 to 13C, the second alignment mark 1112, the first alignment mark 1111, and the third alignment mark 1113 in the second alignment mark group 111B are sequentially arranged in the extending direction X of the pixel row 122 in the pixel region 12.
In the present embodiment, the frame region 11 includes two alignment mark sets 111. One alignment mark set 111 is a first alignment mark set 111A. The other alignment mark set 111 is a second alignment mark set 111B. The binding area 14 includes two fourth alignment marks 141. In one aspect, the second set of alignment marks 111B includes a first alignment mark 1111, a second alignment mark 1112, and a third alignment mark 1113. In this case, a second alignment mark 1112, a first alignment mark 1111, and a third alignment mark 1113 are sequentially arranged in the extending direction of the pixel row 122. When one first alignment mark 1111 is aligned with one fourth alignment mark 141, the binding region 14 falls at a set position in the extending direction X of the pixel row 122. The substrate of the display panel 1 is transparent. As shown in fig. 13A, at this time, the orthographic projection P4 'of the fourth alignment mark 141 on the light emitting surface 1A falls within the orthographic projection P1' of the first alignment mark 1111 on the light emitting surface 1A. When a second alignment mark 1112 is aligned with a fourth alignment mark 141, the binding region 14 exceeds the set position in the extending direction X of the pixel row 122. As shown in fig. 13B, at this time, the orthographic projection P4 'of the fourth alignment mark 141 on the light emitting surface 1A falls within the orthographic projection P2' of the second alignment mark 1112 on the light emitting surface 1A. When a third alignment mark 1113 is aligned with a fourth alignment mark 141, the binding region 14 is not at the set position in the extending direction X of the pixel row 122. As shown in fig. 13C, at this time, the orthographic projection P4 'of the fourth alignment mark 141 on the light emitting surface 1A falls within the orthographic projection P3' of the third alignment mark 1113 on the light emitting surface 1A. Thus, the second alignment mark group 111B and a fourth alignment mark 141 are used for alignment of the binding region 14 in the extending direction X of the pixel row 122. This alignment improves the accuracy of the arrangement of the bound region 14 in the extending direction X of the pixel row 122, and avoids the displacement of the bound region 14 in the extending direction X of the pixel row 122. On the other hand, the first set of alignment marks 111A includes another first alignment mark 1111, another second alignment mark 1112, and another third alignment mark 1113. The second alignment mark 1112, the first alignment mark 1111, and the third alignment mark 1113 are sequentially arranged in the extending direction Y of the pixel column 121. When the other first alignment mark 1111 is aligned with the other fourth alignment mark 141, the binding region 14 falls at a set position in the extending direction Y of the pixel column 121. When the second alignment mark 1112 is aligned with the fourth alignment mark 141, the binding region 14 exceeds the set position in the extending direction Y of the pixel column 121. When the third alignment mark 1113 is aligned with the fourth alignment mark 141, the binding region 14 is not at the set position in the extending direction Y of the pixel column 121. Thus, the first alignment mark group 111A and the other fourth alignment mark 141 are used for alignment of the binding region 14 in the extending direction Y of the pixel column 121. This alignment improves the accuracy of the arrangement of the binding region 14 in the extending direction Y of the pixel column 121, and avoids the displacement of the binding region 14 in the extending direction Y of the pixel column 121. Two alignment mark groups 111 in the frame region 11, that is, the first alignment mark group 111A and the second alignment mark group 111B, are arranged to meet the requirement of adjusting the pixel columns 121 in the extending direction X and the extending direction Y simultaneously, so that the accuracy of the whole bending is improved, the poor alignment is reduced, and the size of the lower frame is further reduced.
FIG. 14 is a diagram illustrating a first set of alignment marks in another display panel according to an embodiment of the present invention.
As shown in fig. 6 and 14, the first alignment mark group 111A further includes another second alignment mark 1112 and another third alignment mark 1113; the second alignment mark 1112, the first alignment mark 1111 and the third alignment mark 1113 of the first alignment mark group 111A are sequentially arranged in the extending direction X of the pixel row 122 in the pixel region 12.
In the present embodiment, the first set of alignment marks 111A includes a first alignment mark 1111, two second alignment marks 1112, and two third alignment marks 1113. In one aspect, the first second alignment mark 1112, the first alignment mark 1111, and the first third alignment mark 1113 are sequentially arranged in the extending direction X of the pixel row 122. When the first alignment mark 1111 is aligned with the fourth alignment mark 141, the binding region 14 falls at a set position in the extending direction X of the pixel row 122. The substrate of the display panel 1 is transparent. Referring to fig. 13A, at this time, the orthographic projection P4 'of the fourth alignment mark 141 on the light emitting surface 1A falls within the orthographic projection P1' of the first alignment mark 1111 on the light emitting surface 1A. When the first second alignment mark 1112 is aligned with the fourth alignment mark 141, the binding region 14 exceeds the set position in the extending direction X of the pixel row 122. Referring to fig. 13B, at this time, the orthographic projection P4 'of the fourth alignment mark 141 on the light emitting surface 1A falls within the orthographic projection P2' of the second alignment mark 1112 on the light emitting surface 1A. When the first third alignment mark 1113 is aligned with the fourth alignment mark 141, the binding region 14 is not at the set position in the extending direction X of the pixel row 122. Referring to fig. 13C, at this time, the orthographic projection P4 'of the fourth alignment mark 141 on the light emitting surface 1A falls within the orthographic projection P3' of the third alignment mark 1113 on the light emitting surface 1A. Accordingly, the first alignment mark group 111A and the fourth alignment mark 141 are used for alignment of the binding region 14 in the extending direction X of the pixel row 122. This alignment improves the accuracy of the arrangement of the bound region 14 in the extending direction X of the pixel row 122, and avoids the displacement of the bound region 14 in the extending direction X of the pixel row 122. On the other hand, the second alignment mark 1112, the first alignment mark 1111, and the second third alignment mark 1113 are arranged in this order in the extending direction Y of the pixel column 121. When the first alignment mark 1111 is aligned with the fourth alignment mark 141, the binding region 14 falls at a set position in the extending direction Y of the pixel column 121. Referring to fig. 7A, at this time, the orthographic projection P4 of the fourth alignment mark 141 on the light emitting surface 1A falls within the orthographic projection P1 of the first alignment mark 1111 on the light emitting surface 1A. When the second alignment mark 1112 is aligned with the fourth alignment mark 141, the binding region 14 exceeds the set position in the extending direction Y of the pixel column 121. Referring to fig. 7B, at this time, the orthographic projection P4 of the fourth alignment mark 141 on the light emitting surface 1A falls within the orthographic projection P2 of the second alignment mark 1112 on the light emitting surface 1A. When the second third alignment mark 1113 is aligned with the fourth alignment mark 141, the binding region 14 is not at the set position in the extending direction Y of the pixel column 121. Referring to fig. 7C, at this time, the orthographic projection P4 of the fourth alignment mark 141 on the light emitting surface 1A falls within the orthographic projection P3 of the third alignment mark 1113 on the light emitting surface 1A. Thus, the first alignment mark group 111A and the fourth alignment mark 141 are used for alignment of the binding region 14 in the extending direction Y of the pixel column 121. This alignment improves the accuracy of the arrangement of the binding region 14 in the extending direction Y of the pixel column 121, and avoids the displacement of the binding region 14 in the extending direction Y of the pixel column 121.
In this embodiment, the first alignment mark group 111A is disposed, so that the requirement of adjusting the extending direction X and the extending direction Y of the pixel columns 121 at the same time can be met, the accuracy of the whole bending is improved, the poor alignment is reduced, and the size of the lower frame is further reduced.
Fig. 15A to 15E are flowcharts of another alignment method for a display panel according to another embodiment of the invention.
As shown in fig. 15A, the alignment method 2 of the display panel includes:
step S21, bending the bending region 13 from the side of the frame region 11 to the non-light-emitting surface 1B;
step S22, the binding region 14 is disposed on the non-light emitting surface 1B;
step S23', acquiring the positions of the alignment mark group 111 and the fourth alignment mark 141 in the extending direction X of the pixel row 122 and the positions thereof in the extending direction Y of the pixel column 121;
step S24', comparing the positions of the alignment mark group 111 and the fourth alignment mark 141 in the extending direction X of the pixel row 122 with the positions thereof in the extending direction Y of the pixel column 121;
in step S25A', when the first alignment mark 1111 and the fourth alignment mark 141 are aligned in the extending direction X of the pixel row 122 and are not aligned in the extending direction Y of the pixel column 121, the position of the binding region 14 in the extending direction Y of the pixel column 121 is adjusted such that when the first alignment mark 1111 and the fourth alignment mark 141 are aligned in the extending direction X of the pixel row 122 and are aligned in the extending direction Y of the pixel column 121, and the binding region 14 is fixed to the non-light-emitting surface 1B.
As shown in fig. 15B, the alignment method 2 of the display panel includes:
step S21, bending the bending region 13 from the side of the frame region 11 to the non-light-emitting surface 1B;
step S22, the binding region 14 is disposed on the non-light emitting surface 1B;
step S23', acquiring the positions of the alignment mark group 111 and the fourth alignment mark 141 in the extending direction X of the pixel row 122 and the positions thereof in the extending direction Y of the pixel column 121;
step S24', comparing the positions of the alignment mark group 111 and the fourth alignment mark 141 in the extending direction X of the pixel row 122 with the positions thereof in the extending direction Y of the pixel column 121;
in step S25B', when the first alignment mark 1111 and the fourth alignment mark 141 are not aligned in the extending direction X of the pixel row 122 and are aligned in the extending direction Y of the pixel column 121, the position of the binding region 14 in the extending direction X of the pixel row 122 is adjusted such that when the first alignment mark 1111 and the fourth alignment mark 141 are aligned in the extending direction X of the pixel row 122 and are aligned in the extending direction Y of the pixel column 121, the binding region 14 is fixed to the non-light-emitting surface 1B.
As shown in fig. 15C, the alignment method 2 of the display panel includes:
step S21, bending the bending region 13 from the side of the frame region 11 to the non-light-emitting surface 1B;
step S22, the binding region 14 is disposed on the non-light emitting surface 1B;
step S23', acquiring the positions of the alignment mark group 111 and the fourth alignment mark 141 in the extending direction X of the pixel row 122 and the positions thereof in the extending direction Y of the pixel column 121;
step S24', comparing the positions of the alignment mark group 111 and the fourth alignment mark 141 in the extending direction X of the pixel row 122 with the positions thereof in the extending direction Y of the pixel column 121;
step S25C', when the first alignment mark 1111 and the fourth alignment mark 141 are not aligned in the extending direction X of the pixel row 122 and are not aligned in the extending direction Y of the pixel column 121, the alignment mark adjacent to the fourth alignment mark 141 is preferentially adjusted, and taking fig. 15D as an example, the alignment mark adjacent to the fourth alignment mark 141 is the second alignment mark 1112 in the extending direction X of the pixel row 122, so that the binding region 14 is preferentially adjusted to be aligned with the second alignment mark 1112 in the extending direction X of the pixel row 122, the positions of the binding region 14 and the pixel row 122 in the extending direction X are continuously adjusted, the first alignment mark 1111 and the fourth alignment mark 141 are aligned in the extending direction X of the pixel row 122, the position of the binding region 14 in the extending direction Y of the pixel column 121 is adjusted, so that when the first alignment mark 1111 and the fourth alignment mark 141 are aligned in the extending direction Y of the pixel column 121, and fixes the binding region 14 to the non-light-emitting surface 1B.
For other similar cases, please refer to the above steps, which are not described herein again.
As shown in fig. 15E, the alignment method 2 of the display panel includes:
step S21, bending the bending region 13 from the side of the frame region 11 to the non-light-emitting surface 1B;
step S22, the binding region 14 is disposed on the non-light emitting surface 1B;
step S23', acquiring the positions of the alignment mark group 111 and the fourth alignment mark 141 in the extending direction X of the pixel row 122 and the positions thereof in the extending direction Y of the pixel column 121;
step S24', comparing the positions of the alignment mark group 111 and the fourth alignment mark 141 in the extending direction X of the pixel row 122 with the positions thereof in the extending direction Y of the pixel column 121;
in step S25D', when the first alignment mark 1111 and the fourth alignment mark 141 are aligned in the extending direction X of the pixel row 122 and aligned in the extending direction Y of the pixel column 121, the binding region 14 is fixed to the non-light emitting surface 1B.
As shown in fig. 5, 6, and 11 to 14, the first alignment mark 1111, the second alignment mark 1112, the third alignment mark 1113, and the fourth alignment mark 141 have different shapes.
In the present embodiment, the shape of the first alignment mark 1111 is different from the shapes of the other alignment marks. The shape of the second alignment mark 1112 is different from the shapes of the other alignment marks. The third alignment mark 1113 has a shape different from the other alignment marks. The shape of the fourth alignment mark 141 is different from the shapes of the other alignment marks. The first alignment mark 1111, the second alignment mark 1112, the third alignment mark 1113 and the fourth alignment mark 141 are easily recognized.
As shown in fig. 5, 6, and 11 to 14, for example, the first alignment mark 1111 has a circular shape, the second alignment mark 1112 has a rectangular shape, the third alignment mark 1113 has a triangular shape, and the fourth alignment mark 141 has a straight shape.
In the present embodiment, the first alignment mark 1111, the second alignment mark 1112, the third alignment mark 1113, and the fourth alignment mark 141 are respectively circular, rectangular, triangular, or in-line. The first alignment mark 1111, the second alignment mark 1112, the third alignment mark 1113, and the fourth alignment mark 141 having such shapes are easily manufactured by a photolithography process. The first alignment mark 1111, the second alignment mark 1112, the third alignment mark 1113, and the fourth alignment mark 141 may be of other shapes as long as they are different from each other and easily recognized
As shown in fig. 5, 6, 11 to 14, the sizes of the first alignment mark 1111, the second alignment mark 1112, the third alignment mark 1113, and the fourth alignment mark 141 are greater than 5 micrometers and less than 20 micrometers.
In the embodiment, on the one hand, the sizes of the first alignment mark 1111, the second alignment mark 1112, the third alignment mark 1113 and the fourth alignment mark 141 are larger than 5 micrometers. This prevents the first alignment mark 1111, the second alignment mark 1112, the third alignment mark 1113, and the fourth alignment mark 141 from being too small to be recognized. On the other hand, the sizes of the first alignment mark 1111, the second alignment mark 1112, the third alignment mark 1113 and the fourth alignment mark 141 are less than 20 micrometers. This prevents the first alignment mark 1111, the second alignment mark 1112, the third alignment mark 1113, and the fourth alignment mark 141 from affecting the alignment accuracy too much.
As shown in fig. 5, 6, and 11 to 14, the first alignment mark 1111 and the second alignment mark 1112 are spaced apart by more than 1 micrometer, and the first alignment mark 1111 and the third alignment mark 1113 are spaced apart by more than 1 micrometer.
In the present embodiment, the first alignment mark 1111 and the second alignment mark 1112 are manufactured by a photolithography process. The etching precision of the photolithography process was 1 micron. The first 1111 and second 1112 registration marks are spaced apart by more than 1 micron. This makes the first alignment mark 1111 and the second alignment mark 1112 not affect each other during photolithography. The first alignment mark 1111 and the third alignment mark 1113 are manufactured by a photolithography process. The etching precision of the photolithography process was 1 micron. The first 1111 and third 1113 alignment marks are spaced apart by more than 1 micron. This makes the first alignment mark 1111 and the third alignment mark 1113 not affect each other during photolithography.
As shown in fig. 4, the display panel 1 further includes an integrated circuit 15; an integrated circuit 15 is disposed on the bonding region 14.
In this embodiment, the traces of the bonding area 14 connect the integrated circuit 15. The traces of inflection region 13 connect the traces of bonding region 14. The traces of the border area 11 connect the traces of the inflection area 13. The pixel region 12 connects the traces of the frame region 11. The integrated circuit 15 can drive the pixel region 12 through the routing of the bonding region 14 to the bezel region 11.
FIG. 16 is a side view of another display panel of an embodiment of the invention when bent.
As shown in fig. 16, the display panel 1 further includes an integrated circuit 15 and a flexible circuit board 16; the flexible circuit board 16 is connected with the binding area 14; the integrated circuit 15 is disposed on a flexible circuit board 16.
In this embodiment, the traces of the flexible circuit board 16 connect the integrated circuits 15. The traces of the bonding area 14 connect the traces of the flexible circuit board 16. The traces of inflection region 13 connect the traces of bonding region 14. The traces of the border area 11 connect the traces of the inflection area 13. The pixel region 12 connects the traces of the frame region 11. The integrated circuit 15 may drive the pixel region 12 through routing of the flexible circuit board 16 to the bezel region 11.
Fig. 17 is a schematic view of a display device according to an embodiment of the invention.
As shown in fig. 17, the display device 3 includes a display panel 1.
In the present embodiment, the display device 3 implements display using the display panel 1, for example, an electronic device such as a smartphone. The display panel 1 is described above and will not be described in detail.
In summary, the present application provides a display panel and a display device. The display panel comprises a light-emitting surface and a non-light-emitting surface; the light emitting surface and the non-light emitting surface are oppositely arranged; the display panel also comprises a frame area, a pixel area, a bending area and a binding area; the frame area surrounds the pixel area; the frame area is connected with the bending area; the frame area comprises at least one alignment mark group; the alignment mark group comprises a first alignment mark, a second alignment mark and a third alignment mark; the second alignment mark, the first alignment mark and the third alignment mark in the first alignment mark group are sequentially arranged in the extending direction of the pixel column in the pixel area; the bending area is bent to the non-light-emitting surface from the side of the frame area; the bending area is connected with the binding area; the binding area is arranged on the non-light-emitting surface; the binding area comprises a fourth alignment mark which is arranged corresponding to the alignment mark group; the first alignment mark is aligned with the fourth alignment mark. Then, the alignment mark group and the fourth alignment mark are used for alignment of the binding region in the extending direction of the pixel column. The precision of whole buckling has been improved, has reduced the counterpoint harmfully, has further reduced the size of lower frame.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (11)
1. A display panel is characterized by comprising a light emitting surface and a non-light emitting surface;
the light emitting surface and the non-light emitting surface are oppositely arranged;
the display panel also comprises a frame area, a pixel area, a bending area and a binding area;
the frame area surrounds the pixel area;
the frame area is connected with the bending area;
the frame area comprises at least one alignment mark group;
the alignment mark group comprises a first alignment mark, a second alignment mark and a third alignment mark;
the second alignment mark, the first alignment mark and the third alignment mark in the first alignment mark group are sequentially arranged in the extending direction of the pixel column in the pixel area;
the bending area is bent to the non-light-emitting surface from the side of the frame area;
the bending area is connected with the binding area;
the binding area is arranged on the non-light-emitting surface;
the binding region comprises a fourth alignment mark which is arranged corresponding to the alignment mark group;
the first alignment mark is aligned with the fourth alignment mark.
2. The display panel of claim 1, wherein the binding region is fixed to the non-light-emitting surface.
3. The display panel according to claim 1, wherein the second alignment mark, the first alignment mark, and the third alignment mark in the second alignment mark group are sequentially arranged in an extending direction of a pixel row in the pixel region.
4. The display panel according to claim 1, wherein the first set of alignment marks further comprises another second alignment mark and another third alignment mark;
the other second alignment mark, the first alignment mark and the other third alignment mark of the first alignment mark group are sequentially arranged in the extending direction of the pixel row in the pixel region.
5. The display panel according to claim 1, wherein the first alignment mark, the second alignment mark, the third alignment mark, and the fourth alignment mark are different in shape from each other.
6. The display panel according to claim 5, wherein the first alignment mark is circular, the second alignment mark is rectangular, the third alignment mark is triangular, and the fourth alignment mark is in-line.
7. The display panel according to claim 1, wherein the first alignment mark, the second alignment mark, the third alignment mark, and the fourth alignment mark have a size greater than 5 micrometers and less than 20 micrometers.
8. The display panel according to claim 7, wherein the first alignment mark and the second alignment mark have a pitch greater than 1 micron, and the first alignment mark and the third alignment mark have a pitch greater than 1 micron.
9. The display panel according to claim 1, further comprising an integrated circuit;
the integrated circuit is disposed on the bonding region.
10. The display panel according to claim 1, further comprising an integrated circuit and a flexible circuit board;
the flexible circuit board is connected with the binding region;
the integrated circuit is disposed on the flexible circuit board.
11. A display device characterized by comprising the display panel according to any one of claims 1 to 10.
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| CN202010253966.1A CN111383537A (en) | 2020-04-02 | 2020-04-02 | Display panel and display device |
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| CN202010253966.1A CN111383537A (en) | 2020-04-02 | 2020-04-02 | Display panel and display device |
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| CN111383537A true CN111383537A (en) | 2020-07-07 |
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Effective date of registration: 20211110 Address after: 430205 No. 8, liufangyuanheng Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province Applicant after: WUHAN TIANMA MICRO-ELECTRONICS Co.,Ltd. Applicant after: Wuhan Tianma Microelectronics Co.,Ltd. Shanghai Branch Address before: 201201 room 509, building 1, No. 6111, Longdong Avenue, Pudong New Area, Shanghai Applicant before: SHANGHAI TIANMA AM-OLED Co.,Ltd. |
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Application publication date: 20200707 |