Laminated display module and electronic device

Patent metadata

Field	Value
Publication number	US-2024106926-A1
Application number	US-202218004143-A
Country	US
Kind code	A1
Filing date	May 12, 2022
Priority date	Jun 9, 2021
Publication date	Mar 28, 2024
Grant date	—

Abstract

This application provides a laminated display module and an electronic device, including a cover layer, a thin film packaging layer, a display layer, and a support membrane layer that are sequentially covered through lamination from top to bottom. The cover layer includes a smooth region and two curved surface regions along a longitudinal direction. The two curved surface regions are respectively located on two sides of the smooth region, where each curved surface region includes one bending region, and each bending region is projected onto the support membrane layer to form a projection region. The support membrane layer includes a main support region and two side support regions along a longitudinal direction, and a gap is provided between either of the side support regions and the main support region.

First claim

1 . A laminated display module, comprising:
a cover layer, a thin film packaging layer, a display layer, and a support membrane layer that are sequentially covered through lamination from top to bottom, wherein the cover layer comprises a smooth region and two curved surface regions along a longitudinal direction, the two curved surface regions are respectively located on two sides of the smooth region, wherein each curved surface region comprises one bending region, and each bending region is projected onto the support membrane layer to form a projection region; and the support membrane layer comprises a main support region and two side support regions along a longitudinal direction, and a gap is provided between either of the side support regions and the main support region.

2 . The laminated display module according to claim 1 , wherein a width of the gap is equal to a width of a projection region on a same side.

3 . The laminated display module according to claim 1 , wherein the gap comprises M excavation regions, wherein M is a positive integer and M≥1.

4 . The laminated display module according to claim 3 , wherein the M excavation regions are evenly distributed in two projection regions, M is an even number, and each projection region comprises M/2 excavation regions.

5 . The laminated display module according to claim 3 , wherein shapes of the excavation regions comprise at least one of a circular shape, a square shape, a rhombic shape, an oval shape, a triangular shape, a star shape, and an irregular shape.

6 . The laminated display module according to claim 3 , wherein areas of the M excavation regions are equal.

7 . The laminated display module according to claim 3 , wherein the M excavation regions comprise a first group and a second group, and an area of the first group is greater than an area of the second group.

8 . The laminated display module according to claim 7 , wherein the M excavation regions comprise at least two second groups; and
the first group is disposed between the at least two second groups.

9 . The laminated display module according to claim 4 , wherein in the projection region on any one side, areas of the M/2 excavation regions are partially equal or all unequal; and
each excavation region corresponds to a crack probability value, wherein the crack probability value is positively correlated with an area of the excavation region, and an area of the excavation region with a large crack probability value is greater than an area of the excavation region with a small crack probability value.

10 . The laminated display module according to claim 3 , wherein in the projection region on any side, areas of one or two excavation regions in the center are greater than areas of the excavation regions on two sides, and the areas of the excavation regions on the two sides successively decrease from the center to the two sides.

11 . An electronic device, comprising a housing and a laminated display module, wherein the laminated display module is buckled in the housing, and the laminated display module is the laminated display module according to claim 1 .

12 . A laminated display module, comprising:
a cover layer, a thin film packaging layer, a display layer, and a support membrane layer that are sequentially covered through lamination from top to bottom, wherein the cover layer comprises a smooth region and two curved surface regions along a longitudinal direction, the two curved surface regions are respectively located on two sides of the smooth region wherein each curved surface region comprises one bending region, and each bending region is projected onto the support membrane layer to form a projection region; and the support membrane layer comprises a main support region and two side support regions along a longitudinal direction, and a gap is provided between either of the side support regions; the gap comprises M excavation regions, wherein M is a positive integer and M≥1; the M excavation regions are evenly distributed in two projection regions, M is an even number, and each projection region comprises M/2 excavation regions; in the projection region on any side, areas of the M/2 excavation regions are partially equal or all unequal; each excavation region corresponds to a crack probability value, wherein the crack probability value is positively correlated with an area of the excavation region, and an area of the excavation region with a large crack probability value is greater than an area of the excavation region with a small crack probability value; and a distance projected by the curved surface region onto a plane is denoted as A, a distance projected by the bending region onto the plane is denoted as B, a distance projected by an extension region onto the plane is denoted as C, and A, B, and C meet a relationship of B≥41% A and C≤41% A.

13 . The laminated display module according to claim 12 , wherein a width of the gap is equal to a width of a projection region on a same side.

14 . The laminated display module according to claim 12 , wherein shapes of the excavation regions comprise at least one of a circular shape, a square shape, a rhombic shape, an oval shape, a triangular shape, a star shape, and an irregular shape.

15 . The laminated display module according to claim 12 , wherein areas of the M excavation regions are equal.

16 . The laminated display module according to claim 12 , wherein the M excavation regions comprise a first group and a second group, and an area of the first group is greater than an area of the second group.

17 . The laminated display module according to claim 16 , wherein the M excavation regions comprise at least two second groups; and
the first group is disposed between the at least two second groups.

18 . The laminated display module according to claim 12 , wherein in the projection region on any side, areas of one or two excavation regions in the center are greater than areas of the excavation regions on two sides, and the areas of the excavation regions on the two sides successively decrease from the center to the two sides.

19 . (canceled)

Assignees

• Honor Device Co Ltd

Inventors

• Zhang Yujun
• Guo Ning

Classifications

• B32B2457/20

  Displays, e.g. liquid crystal displays, plasma displays · CPC title

• B32B3/266

  characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12 · CPC title

• B32B3/14

  characterised by a face layer formed of separate pieces of material {which are juxtaposed side-by-side (B32B5/02 takes precedence)} · CPC title

• B32B3/02

  characterised by features of form at particular places, e.g. in edge regions {(non-uniform thickness B32B3/263)} · CPC title

• H04M1/185 Primary

  Improving the shock resistance of the housing, e.g. by increasing the rigidity · CPC title