US-20260130081-A1 - DISPLAY PANEL AND DISPLAY APPARATUS

US20260130081A1US 20260130081 A1US20260130081 A1US 20260130081A1US-20260130081-A1

Abstract

Provided are a display panel and a display apparatus. The display panel includes a display area and a non-display area, the non-display area including a bonding area; wherein the display panel comprises a substrate, and metal bumps and organic layers located on one side of the substrate, the organic layers have a hollow located in the bonding area, and the metal bumps are located in the hollow; and wherein at least one of the organic layers has a groove, and the groove is in communication with the hollow and extends in a direction away from the hollow. The groove can be utilized as a bubble release path, preventing an anisotropic conductive adhesive from generating bubble accumulation at the boundary position of the organic layer, thereby being capable of preventing film layer peeling between the anisotropic conductive adhesive and metal and improving product reliability.

Inventors

Lei Li

Assignees

WUHAN TIANMA MICROELECTRONICS CO., LTD.

Dates

Publication Date: 20260507
Application Date: 20260106
Priority Date: 20251027

Claims (20)

1 . A display panel, comprising a display area and a non-display area, the non-display area comprising a bonding area; wherein the display panel comprises a substrate, and metal bumps and organic layers that are located on one side of the substrate, the organic layers having a hollow located in the bonding area, and the metal bumps being located in the hollow; and wherein at least one of the organic layers has a groove, the groove being in communication with the hollow and extending in a direction away from the hollow.
2 . The display panel according to claim 1 , wherein a length of the hollow in a first direction is greater than a length of the hollow in a second direction, the first direction and the second direction are each parallel to a plane of the substrate, and the first direction and the second direction intersect each other; and the groove is provided on at least one side of the hollow along the second direction.
3 . The display panel according to claim 2 , wherein the hollow has a first side and a second side opposite to each other in the second direction, and along the second direction, a distance from the first side to the display area is smaller than a distance from the second side to the display area; and wherein a length of the groove in communication with the first side in its extending direction is d11, and a length of the groove in communication with the second side in its extending direction is d12, and d11>d12.
4 . The display panel according to claim 2 , wherein the groove is provided on at least one side of the hollow along the first direction.
5 . The display panel according to claim 4 , wherein the groove comprises a first groove and a second groove, the first groove is located on one side of the hollow in the first direction, and the second groove is located on one side of the hollow in the second direction; and wherein a length of the first groove in its extending direction is greater than a length of the second groove in its extending direction, and/or a width of the first groove in a direction perpendicular to its extending direction is smaller than a width of the second groove in a direction perpendicular to its extending direction.
6 . The display panel according to claim 1 , wherein a length of the groove in its extending direction is L, and L≥100μm.
7 . The display panel according to claim 6 , wherein L≤150μm.
8 . The display panel according to claim 1 , wherein along a direction perpendicular to an extending direction of the groove, a width of the groove is d1, and 50 μm≤d1≤100μm.
9 . The display panel according to claim 1 , wherein n grooves are provided on at least one side of the hollow, a spacing between two adjacent grooves is d2, n is an integer and n≥ 2 , and 50 μm≤d2≤100μm.
10 . The display panel according to claim 1 , wherein a plurality of grooves are arranged at equal intervals on at least one side of the hollow.
11 . The display panel according to claim 1 , wherein a shape of an orthographic projection of the groove onto the substrate is at least one selected from a group consisting of a rectangle, a triangle, a trapezoid, a circle, and an ellipse.
12 . The display panel according to claim 1 , wherein the organic layers comprise a first organic layer and a second organic layer, and the second organic layer is located on one side of the first organic layer away from the substrate; and along a direction perpendicular to a plane of the substrate, the hollow of the first organic layer and the hollow of the second organic layer at least partially overlap; wherein one of the first organic layer and the second organic layer has the groove.
13 . The display panel according to claim 12 , wherein the display panel comprises a first metal layer, a second metal layer, a third metal layer, and a fourth metal layer located on the one side of the substrate, and the first metal layer, the second metal layer, the third metal layer, and the fourth metal layer are sequentially arranged in a direction away from the substrate; and at least part of the first organic layer is located between the third metal layer and the fourth metal layer, and at least part of the second organic layer is located on one side of the fourth metal layer away from the substrate.
14 . The display panel according to claim 13 , wherein the display panel further comprises a first inorganic layer located on one side of the first organic layer close to the substrate; and the first inorganic layer has a first trench located in the bonding area; and along the direction perpendicular to the plane of the substrate, the first trench at least partially overlaps the groove.
15 . The display panel according to claim 1 , wherein the organic layers comprise a first organic layer, a second organic layer, and a third organic layer, and the first organic layer, the second organic layer, and the third organic layer are sequentially arranged in a direction away from the substrate; and along a direction perpendicular to a plane of the substrate, the hollow of the first organic layer, the hollow of the second organic layer, and the hollow of the third organic layer at least partially overlap; wherein one of the first organic layer, the second organic layer, and the third organic layer has the groove; or two of the first organic layer, the second organic layer, and the third organic layer have the groove, and the grooves of these two organic layers overlap in the direction perpendicular to the plane of the substrate.
16 . The display panel according to claim 15 , wherein the display panel further comprises a first inorganic layer located on one side of the first organic layer close to the substrate; and at least one first inorganic layer has a first trench located in the bonding area; and along the direction perpendicular to the plane of the substrate, the first trench at least partially overlaps the groove.
17 . The display panel according to claim 15 , wherein the display panel further comprises a second inorganic layer located between the second organic layer and the third organic layer; the second inorganic layer has a second trench located in the bonding area; and along the direction perpendicular to the plane of the substrate, the second trench at least partially overlaps the groove.
18 . The display panel according to claim 15 , wherein the display panel comprises a driving layer, a device layer, and a touch layer, the device layer is located on one side of the driving layer away from the substrate, and the touch layer is located on one side of the device layer away from the substrate; wherein at least part of the first organic layer and at least part of the second organic layer are located in the driving layer, and at least part of the third organic layer is located on one side of the touch layer away from the substrate.
19 . The display panel according to claim 1 , wherein the display panel comprises a driver chip, the driver chip comprises a plurality of pins; and in the hollow, the pins and the metal bumps are connected through an anisotropic conductive adhesive; and the anisotropic conductive adhesive fills at least part of the groove.
20 . A display apparatus, comprising a display panel, wherein the display panel comprises a display area and a non-display area, the non-display area comprising a bonding area; wherein the display panel comprises a substrate, and metal bumps and organic layers that are located on one side of the substrate, the organic layers having a hollow located in the bonding area, and the metal bumps being located in the hollow; and wherein at least one of the organic layers has a groove, the groove being in communication with the hollow and extending in a direction away from the hollow.

Description

CROSS-REFERENCE TO RELATED APPLICATION The present application claims priority to Chinese Patent Application No. 202511543578.6, filed on October 27, 2025, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD The present application relates to the field of display technologies, and in particular, to a display panel and a display apparatus. BACKGROUND At present, the design of display products is continuously optimized in terms of high refresh rate, narrow bezel, high display effect, and other aspects to meet market demands. OLED (Organic Light-Emitting Diode) products have become a mainstream design in the market due to their advantages such as thinness and lightness, high brightness, low power consumption, fast response speed, high definition, good flexibility, and high luminous efficiency. A driver chip is bonded to metal bumps on a display panel via an anisotropic conductive adhesive, whereby signals are provided to signal lines in a display area through the metal bumps. In some usage scenarios, there is a risk of peeling between the anisotropic conductive adhesive and the metal bumps, which may in turn lead to failure. SUMMARY In a first aspect, an embodiment of the present application provides a display panel including a display area and a non-display area, the non-display area including a bonding area; where the display panel includes a substrate, and metal bumps and organic layers that are located on one side of the substrate, the organic layers having a hollow located in the bonding area, and the metal bumps being located in the hollow; and where at least one of the organic layers has a groove, the groove being in communication with the hollow and extending in a direction away from the hollow. In a second aspect, an embodiment of the present application further provides a display apparatus including a display panel, where the display panel includes a display area and a non-display area, the non-display area including a bonding area; where the display panel includes a substrate, and metal bumps and organic layers that are located on one side of the substrate, the organic layers having a hollow located in the bonding area, and the metal bumps being located in the hollow; and where at least one of the organic layers has a groove, the groove being in communication with the hollow and extending in a direction away from the hollow. BRIEF DESCRIPTION OF DRAWINGS To more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the accompanying drawings required for describing the embodiments or the prior art will be briefly introduced below. The accompanying drawings in the following description are some embodiments of the present application, and for those of skill in the art, other accompanying drawings can also be obtained based on these accompanying drawings. FIG. 1 is a partial schematic diagram of a display panel in the related art; FIG. 2 is a schematic diagram of a display panel according to an embodiment of the present application; FIG. 3 is a cross-sectional schematic diagram taken at the position of section line A-A’ in FIG. 2; FIG. 4 is another schematic diagram of a display panel according to an embodiment of the present application; FIG. 5 is another schematic diagram of a display panel according to an embodiment of the present application; FIG. 6 is a cross-sectional schematic diagram taken at the position of section line B-B’ in FIG. 5; FIG. 7 is another schematic diagram of a display panel according to an embodiment of the present application; FIG. 8 is another schematic diagram of a display panel according to an embodiment of the present application; FIG. 9 is another schematic diagram of a display panel according to an embodiment of the present application; FIG. 10 is another partial schematic diagram of a display panel according to an embodiment of the present application; FIG. 11 is another cross-sectional schematic diagram taken at the position of section line A-A’ in FIG. 2; FIGS. 12A and 12B are top view schematic diagrams of a first organic layer and a second organic layer in a bonding area in FIG. 11; FIG. 13 is a schematic diagram of a film layer structure of a display panel according to an embodiment of the present application; FIG. 14 is another cross-sectional schematic diagram taken at the position of section line A-A’ in FIG. 2; FIG. 15 is another schematic diagram of a film layer structure of a display panel according to an embodiment of the present application; FIG. 16 is another cross-sectional schematic diagram taken at the position of section line A-A’ in FIG. 2; FIGS. 17A, 17B, and 17C are partial top view schematic diagrams of three organic layers in the bonding area in FIG. 16; FIG. 18 is another cross-sectional schematic diagram taken at the position of section line A-A’ in FIG. 2; FIG. 19 is another cross-sectional schematic diagram taken at the position of section line A-A’ in