US-12628288-B2 - Display module and display apparatus

US12628288B2US 12628288 B2US12628288 B2US 12628288B2US-12628288-B2

Abstract

A display module includes a display panel, a first support layer, a second support layer and an adhesive layer. The display panel includes a bendable portion. The second support layer includes a plurality of support bars arranged at intervals, and there is a first gap between two adjacent support bars in the plurality of support bars. The adhesive layer includes a plurality of first portions arranged at intervals and a connection portion. There is a second gap between two adjacent first portions in the plurality of first portions. The second gap is communicated with the first gap. The connection portion connects the plurality of first portions, so that the plurality of first portions are connected by the connection portion.

Inventors

Xinqi LIN

Assignees

BOE TECHNOLOGY GROUP CO., LTD.

Dates

Publication Date: 20260512
Application Date: 20220928

Claims (14)

1 . A display module, comprising: a display panel including a bendable portion; a first support layer located on a back surface of the display panel, the back surface being a surface of the display panel opposite to a display surface; a second support layer located on a side of the first support layer away from the display panel, wherein the second support layer includes a plurality of support bars, and orthographic projections of the plurality of support bars on the display panel are located within the bendable portion; the plurality of support bars are disposed at intervals, and two adjacent support bars in the plurality of support bars have a first gap therebetween; and an adhesive layer located between the second support layer and the first support layer, wherein the adhesive layer includes: a plurality of first portions, orthographic projections of the plurality of first portions on the display panel being located within the bendable portion; the plurality of first portions being disposed at intervals, and two adjacent first portions in the plurality of first portions having a second gap therebetween; the second gap being communicated with the first gap; and a connection portion connecting the plurality of first portions; wherein the plurality of support bars and the plurality of first portions all extend in a first direction, the first direction is parallel to the first support layer; and wherein the orthographic projection of the single support bar on the display panel is located within an orthographic projection of a first portion in the plurality of first portions on the display panel; wherein each of the plurality of first portions includes a first end portion and a second end portion in the first direction; and the connecting portion includes a first connecting portion and a second connecting portion; the first connection portion connects first end portions of at least two first portions, and the second connection portion connects second end portions of at least two first portions.
2 . The display module according to claim 1 , wherein the first connection portion includes a plurality of first connection segments, and the second connection portion includes a plurality of second connection segments; and for three adjacent first portions, first end portions of first two first portions are connected by a first connection segment, and second end portions of last two first portions are connected by a second connection segment.
3 . The display module according to claim 2 , wherein a first connection segment is located between first end portions of two adjacent first portions, and a second connection segment is located between second end portions of two adjacent first portions.
4 . The display module according to claim 2 , wherein the connecting portion further includes at least one third connection segment; and in the plurality of first portions, first end portions of two adjacent first portions located on an outermost side are connected by a third connection segment; and/or in the plurality of first portions, second end portions of two adjacent first portions located on an outermost side are connected by another third connection segment.
5 . The display module according to claim 1 , wherein the adhesive layer includes a base material layer, a first adhesive layer and a second adhesive layer; the first adhesive layer is located on a side of the base material layer proximate to the first support layer, and the second adhesive layer is located on a side of the base material layer proximate to the second support layer.
6 . The display module according to claim 5 , wherein a material of the base material layer includes one or a combination of polyethylene terephthalate, thermoplastic polyurethane elastomer rubber, polyurethane foam, polyethylene foam, or polyvinyl chloride foam.
7 . The display module according to claim 1 , wherein the plurality of first portions and the connection portion are of an integral structure.
8 . The display module according to claim 1 , wherein the display panel further includes a planar portion, and the planar portion is connected to the bendable portion; the second support layer further includes a support plate, and an orthographic projection of the support plate on the display panel is located within the planar portion; and the adhesive layer further includes a second portion, and an orthographic projection of the second portion on the display panel is located within the planar portion.
9 . The display module according to claim 8 , wherein a third gap is formed between a first portion located on an outermost side in the plurality of first portions and the second portion.
10 . The display module according to claim 1 , further comprising: a rotating shaft, wherein the rotating shaft is located on a side of the plurality of support bars away from the bendable portion, the rotating shaft is configured to drive the bendable portion to be curled or unfolded; and a center line of the rotating shaft is parallel to the first direction.
11 . A display apparatus, comprising: the display module according to claim 1 .
12 . A display module, comprising: a display panel including a bendable portion; a first support layer located on a back surface of the display panel, the back surface being a surface of the display panel opposite to a display surface; a second support layer located on a side of the first support layer away from the display panel, wherein the second support layer includes a plurality of support bars, and orthographic projections of the plurality of support bars on the display panel are located within the bendable portion; the plurality of support bars are disposed at intervals, and two adjacent support bars in the plurality of support bars have a first gap therebetween; and an adhesive layer located between the second support layer and the first support layer, wherein the adhesive layer includes: a plurality of first portions, orthographic projections of the plurality of first portions on the display panel being located within the bendable portion; the plurality of first portions being disposed at intervals, and two adjacent first portions in the plurality of first portions having a second gap therebetween; the second gap being communicated with the first gap; and a connection portion connecting the plurality of first portions; wherein the plurality of support bars and the plurality of first portions all extend in a first direction, the first direction is parallel to the first support layer; an orthographic projection of a single support bar on the display panel and an orthographic projection of at least one first portion on the display panel have an overlap; and wherein the connecting portion includes a fourth connection portion; each of the plurality of first portions includes a first end portion and a second end portion in the first direction, and a main portion located between the first end portion and the second end portion; and the fourth connection portion connects main portions of at least two first portions; wherein a second direction is perpendicular to the first direction and parallel to the first support layer; and the fourth connection portion includes a plurality of fourth connection groups, the plurality of fourth connection groups are disposed at intervals in the first direction; at least one fourth connection group includes a plurality of fourth connection segments, and fourth connection segments in a same fourth connection group and the at least two first portions are disposed alternately in the second direction.
13 . The display module according to claim 12 , wherein at least one end surface of a fourth connection segment in the first direction includes a curved surface, and the curved surface is concave inward the fourth connection segment.
14 . The display module according to claim 13 , wherein a side of the curved surface is tangent to a first portion of two adjacent first portions, and another side of the curved surface is tangent to another first portion of the two adjacent first portions.

Description

CROSS-REFERENCE TO RELATED APPLICATION This application is the United States national phase of International Patent Application No. PCT/CN2022/122286, filed Sep. 28, 2022, the disclosure of which is hereby incorporated by reference in its entirety. BACKGROUND OF THE INVENTION Field of the Invention The present disclosure relates to the field of display technologies, and in particular, to a display module and a display apparatus. Description of Related Art The display apparatus may display various images through the display screen to provide a variety of information for users. In recent years, flexible display apparatuses developed based on flexible substrates have greatly improved use convenience for users due to their rollable or bendable properties. SUMMARY OF THE INVENTION In an aspect, a display module is provided. The display module includes a display panel, a first support layer, a second support layer and an adhesive layer. The display panel includes a bendable portion. The first support layer is located on a back surface of the display panel, and the back surface is a surface of the display panel opposite to a display surface. The second support layer is located on a side of the first support layer away from the display panel. The second support layer includes a plurality of support bars, and orthographic projections of the plurality of support bars on the display panel are located within the bendable portion. The plurality of support bars are disposed at intervals, and two adjacent support bars in the plurality of support bars have a first gap therebetween. The adhesive layer is located between the second support layer and the first support layer. The adhesive layer includes a plurality of first portions and a connection portion. Orthographic projections of the plurality of first portions on the display panel are located within the bendable portion. The plurality of first portions are disposed at intervals, and two adjacent first portions in the plurality of first portions have a second gap therebetween. The second gap is communicated with the first gap. The connection portion connects the plurality of first portions. In some embodiments, the plurality of support bars and the plurality of first portions all extend in a first direction, and the first direction is parallel to the first support layer. An orthographic projection of a single support bar on the display panel and an orthographic projection of at least one first portion on the display panel have an overlap. In some embodiments, the orthographic projection of the single support bar on the display panel is located within an orthographic projection of a first portion on the display panel. In some embodiments, each first portion includes a first end portion and a second end portion in the first direction. The connecting portion includes a first connecting portion and a second connecting portion. The first connection portion connects first end portions of at least two first portions, and the second connection portion connects second end portions of at least two first portions. In some embodiments, the first connection portion includes a plurality of first connection segments, and the second connection portion includes a plurality of second connection segments. For three adjacent first portions, first end portions of first two first portions are connected by a first connection segment, and second end portions of last two first portions are connected by a second connection segment. In some embodiments, a first connection segment is located between first end portions of two adjacent first portions, and a second connection segment is located between second end portions of two adjacent first portions. In some embodiments, the connecting portion further includes at least one third connection segment. In the plurality of first portions, first end portions of two adjacent first portions located on an outermost side are connected by a third connection segment. And/or in the plurality of first portions, second end portions of two adjacent first portions located on an outermost side are connected by another third connection segment. In some embodiments, the connecting portion includes a fourth connection portion. Each first portion includes a first end portion and a second end portion in the first direction, and a main portion located between the first end portion and the second end portion. The fourth connection portion connects main portions of at least two first portions. In some embodiments, a second direction is perpendicular to the first direction and parallel to the first support layer. The fourth connection portion includes a plurality of fourth connection groups, and the plurality of fourth connection groups are disposed at intervals in the first direction. At least one fourth connection group includes a plurality of fourth connection segments, and fourth connection segments in a same fourth connection group and the at least two first portions ar