US-12628509-B2 - Display panel with film with marks to make transmissive for sensor, preparation method thereof and display apparatus thereof

Abstract

A display panel and a preparation method thereof and a display apparatus are provided. The display panel includes a display region. The display region includes a first display region. The display panel further includes a first film located in the first display region, the first film includes at least one mark group, and each mark group includes multiple marks. In the technical solution provided, the mark group included in the first film is just etching traces of laser etching in the process of display panel preparation, and multiple marks are included in the mark group.

Inventors

• Quanpeng YU

Assignees

• Hubei Yangtze Industrial Innovation Center of Advanced Display Co., Ltd.

Dates

Publication Date

20260512

Application Date

20230630

Priority Date

20230314

Claims (20)

1. 1 . A display panel comprising: a display region comprising a first display region; and a first film located in the first display region, and the first film comprises at least one mark group, and a mark group of the at least one mark group comprising a plurality of marks; wherein one of the following is satisfied: the plurality of marks in the mark group are arranged curvilinearly; or the mark group comprises first marks and at least one second mark, the first marks being located closer to an edge of the mark group than the at least one second mark; wherein the at least one second mark comprises strip-shaped marks and/or a rectangular-shaped mark; and the first marks comprise dot-shaped marks.
2. 2 . The display panel according to claim 1 , further comprising: a substrate; an array layer located at a side of the substrate, and the array layer comprising driving components; wherein the first film is an organic film located on the array layer.
3. 3 . The display panel according to claim 2 , further comprising: a light blocking layer is located at a side of the driving components facing away from the first film, wherein the light blocking layer comprising a light-transmissive region and a first light blocking region; wherein in a thickness direction of the display panel, the light-transmissive region overlaps with the mark group, and a portion, between two adjacent mark groups, of the first film overlaps with the first light blocking region.
4. 4 . The display panel according to claim 3 , further comprising a second display region and a transition display region; the transition display region surrounding at least part of the first display region, and the second display region surrounding at least part of the transition display region; wherein the light blocking layer further comprises a second light blocking region, and in the thickness direction of the display panel, the second light blocking region overlaps with the transition display region.
5. 5 . The display panel according to claim 2 , further comprising: a display function layer located at a side of the array layer facing away from the substrate; wherein the display function layer comprises a plurality of organic films, and the plurality of organic films comprise a combination of one or more of a hole injection layer, a hole transport layer, an electron injection layer, or an electron transport layer.
6. 6 . The display panel according to claim 1 , wherein a center of the mark group is a first center, and the plurality of marks are circumferentially arranged around the first center; or the plurality of the marks are arranged spirally around the first center.
7. 7 . The display panel according to claim 1 , wherein the plurality of marks comprise marks with at least two different dimension sizes.
8. 8 . The display panel according to claim 7 , wherein the dimension of a first mark is smaller than the dimension of a second mark of the at least one second mark.
9. 9 . The display panel according to claim 1 , wherein the mark group further comprises third marks, the third marks being located between the at least one second mark and the first marks; wherein a dimension of a first mark of the first marks is greater than a dimension of a third mark of the third marks and a dimension of the second mark is greater than the dimension of a third mark of the third marks.
10. 10 . The display panel according to claim 1 , wherein the first marks are arranged around the at least one second mark.
11. 11 . The display panel according to claim 1 , wherein the first marks overlap with the at least one second mark in a thickness direction of the display panel.
12. 12 . The display panel according to claim 11 , wherein a first mark of the first marks covers a second mark of the at least one second mark and an overlap of the first mark with the second mark is convex with respect to a center of the mark group.
13. 13 . The display panel according to claim 11 , wherein a second mark of the at least one second mark covers a first mark of the first marks and an overlap of the first mark with the second mark is concave with respect to a center of the mark group.
14. 14 . The display panel according to claim 1 , wherein the first film comprises at least one mark region, and the at least one mark region comprises the at least one mark group.
15. 15 . The display panel according to claim 14 , further comprising a plurality of light-emitting elements; wherein in the first display region, a light-transmissive region is present between two adjacent light-emitting elements, and in a thickness direction of the display panel, the light-transmissive region overlaps with the mark region.
16. 16 . The display panel according to claim 14 , wherein the first film comprises one mark region, and the mark region comprises one mark group; the mark group comprises multiple layers of mark units; and a layer of a mark unit in the multiple layers of mark units comprises a plurality of marks, and the layer of the mark unit has a same center as a first center of the mark group.
17. 17 . The display panel according to claim 16 , wherein the mark group comprises a first mark unit and a second mark unit, the first mark unit being located closer to an edge of the mark group than the second mark unit; the first mark unit comprises n marks, and the second mark unit comprises m marks; and wherein, n>m.
18. 18 . The display panel according to claim 14 , wherein the mark region comprises one mark group; the mark group comprises a plurality of peripheral marks and a plurality of inside marks, the peripheral marks surrounding the inside marks; and the peripheral marks are arranged along a shape of the mark region.
19. 19 . The display panel according to claim 18 , wherein the plurality of inside marks are arranged linearly; and the plurality of inside marks includes three adjacent inside marks whose centers are located in a same straight line, and the plurality of inside marks includes three inside marks whose centers are not located in a same straight line.
20. 20 . The display panel according to claim 18 , wherein in an arrangement direction of the marks, an angle between a line connecting centers of adjacent two marks and the arrangement direction is a first included angle θ; wherein, θ≤0.3°.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application claims the priority to Chinese Patent Application No. 202310259076.5 filed on Mar. 14, 2023, the disclosure of which is incorporated herein by reference in its entirety. TECHNICAL FIELD This invention relates to the technical field of display panel, and more particularly, to a display panel, a preparation method thereof and a display apparatus. BACKGROUND With the development of display technology, display screens have been widely used in people's production and life. Taking cellphone as an example, smartphones are used more and more widely and have more and more functions, and have become necessary electronic devices for people's daily life. In the conventional preparation technique of films in a display panel, etching technique is a common technique solution. SUMMARY A display panel, a preparation method thereof and a display apparatus are provided according to embodiments of the present invention. In the display panel, a first film includes at least one mark group, and multiple marks are included in the mark group. In a first aspect, a display panel is provided according to embodiments of the present invention, which includes a display region, and the display region includes a first display region. The display panel further includes: a first film. The first film is located in the first display region, and the first film includes at least one mark group, and a mark group of the at least one mark group includes multiple marks. In a second aspect, a display apparatus is provided according to embodiments of the present invention. The display apparatus includes the display panel according to the first aspect. In a third aspect, a preparation method of a display panel is provided according to embodiments of the present invention. The preparation method includes as follows. A first film is provided. The display panel is etched by using a laser, at least one mark group is formed on the film, and the mark group includes multiple marks. A display panel and a preparation method thereof and a display device are provided according to embodiments of the present invention. The display panel includes a display region. The display region includes a first display region. The display panel further includes a first film located in the first display region, the first film includes at least one mark group, and each mark group includes multiple marks. In the technical solution according to an embodiment of the present invention, the mark group included in the first film is just etching traces remaining after the laser etching in the process of display panel preparation, and multiple marks are included in the mark group. BRIEF DESCRIPTION OF DRAWINGS To illustrate technical solutions in embodiments of the present invention more clearly, drawings used in description of the embodiments are briefly described hereinafter. Apparently, the drawings described below merely illustrate some embodiments of the present invention, and the person of ordinary skill in the art can obtain other drawings based on these drawings on the premise that no creative effort is made. FIG. 1 is a structural diagram of a display panel according to an embodiment of the present invention; FIG. 2 is a structural diagram taken along line AA′ of FIG. 1; FIG. 3 is a structural diagram of a first film according to an embodiment of the present invention; FIG. 4 is a structural diagram of a display function layer according to an embodiment of the present invention; FIG. 5 is a structural diagram of a mark group according to an embodiment of the present invention; FIG. 6 is a structural diagram of another mark group according to an embodiment of the present invention; FIG. 7 is a structural diagram of another mark group according to an embodiment of the present invention; FIG. 8 is a structural diagram of another mark group according to an embodiment of the present invention; FIG. 9 is a structural diagram of another mark group according to an embodiment of the present invention; FIG. 10 is a structural diagram of another mark group according to an embodiment of the present invention; FIG. 11 is a structural diagram of another mark group according to an embodiment of the present invention; FIG. 12 is a structural diagram of another mark group according to an embodiment of the present invention; FIG. 13 is a structural diagram of another mark group according to an embodiment of the present invention; FIG. 14 is a structural diagram of another mark group according to an embodiment of the present invention; FIG. 15 is a structural diagram of another mark group according to an embodiment of the present invention; FIG. 16 is a structural diagram of another mark group according to an embodiment of the present invention; FIG. 17 is a structural diagram of a first display region according to an embodiment of the present invention; FIG. 18 is a structural diagram of another first display region according to an embodime