Display panel, method for manufacturing the same, and display device

Patent metadata

Field	Value
Publication number	US-12585370-B2
Application number	US-202418801587-A
Country	US
Kind code	B2
Filing date	Aug 12, 2024
Priority date	Aug 15, 2023
Publication date	Mar 24, 2026
Grant date	Mar 24, 2026

Abstract

A display panel, a method for manufacturing the same, and a display device. The display panel includes a substrate; a packaging layer at a side of the substrate, including an organic packaging layer comprising a first packaging portion and a second packaging portion different in thickness, a display region of the display panel including a first region and a second region in which the first packaging portion and the second packaging portion are disposed, respectively; a touch-control electrode at a side of the packaging layer away from the substrate, being a mesh electrode including first metal lines, an absolute difference between an average width of the first metal lines in the first region and an average width of the multiple first metal lines in the second region ranges from 0 to 32 μm, and the first metal lines in the second region being subject to width compensation.

First claim

What is claimed is:

1 . A display panel, comprising:
a substrate; a packaging layer disposed at a side of the substrate, wherein: the packaging layer comprises an organic packaging layer, the organic packaging layer comprises a first packaging portion and a second packaging portion which are different in thickness, and the display region comprises a first region, in which the first packaging portion is disposed, and a second region, in which the second packaging portion is disposed; and a touch-control electrode, disposed at a side of the packaging layer away from the substrate, wherein: the touch-control electrode is a mesh electrode comprising a plurality of first metal lines, an average width of the plurality of first metal lines in the first region is equal to a first width, an average width of the plurality of first metal lines in the second region is equal to a compensated width, and the plurality of first metal lines is subject to width compensation in the second region; an absolute difference between the first width and the compensated width ranges from 0 to 0.32 μm; and at least one of: a first opening region of the display panel is surrounded by the display region, an inner boundary of the display region is adjacent to the first opening region, the second region comprises a first sub-region adjacent to the inner boundary, and the first sub-region comprises a first compensation region surrounding the first opening region and a second compensation region surrounding the first compensation region; the second region comprises a second sub-region adjacent to an outer boundary of the display region, the second sub-region comprises a third compensation region and a fourth compensation region surrounding the first region, and the third compensation region surrounds the fourth compensation region; or a second opening region of the display panel is surrounded by the display region, an inner boundary of the display region is adjacent to the second opening region, an outer boundary of the display region comprises a first edge, the second region comprises a third sub-region adjacent to the first edge, and the third sub-region comprises: a fifth compensation region located between the inner boundary and the first edge, two sixth compensation regions located at two sides, respectively, of the fifth compensation region along a first direction parallel with the first edge, and a seventh compensation region located at a side, of the fifth compensation region and the two sixth compensation regions, away from the first edge.

2 . The display panel according to claim 1 , wherein:
the second region comprises the first sub-region; the first compensation region is annular, and an inner edge of the first compensation region coincides with the inner boundary; the second compensation region is annular, and an inner edge of the second compensation region coincides with an outer edge of the first compensation region; a radial distance between the outer edge of the first compensation region and the inner edge of the first compensation region ranges from 850 μm to 950 μm, and a radial distance between an outer edge of the second compensation region and the inner edge of the second compensation region ranges from 550 μm to 650 μm; an average width of the plurality of first metal lines in the first compensation region is equal to a second width, and an average width of the plurality of first metal line in the second compensation region is equal to a third width; and an absolute difference between the second width and the first width ranges from 0 to 0.27 μm, and an absolute difference between the third width and the first width ranges from 0 to 0.24 μm.

3 . The display panel according to claim 1 , wherein:
the second region comprises the second sub-region; the third compensation region is shaped as a closed loop, and an outer edge of the third compensation region coincides with the outer boundary; the fourth compensation region is shaped as another closed loop, and an outer edge of the fourth compensation region coincides with the inner edge of the third compensation region; a distance between the inner edge of the third compensation region and the outer edge of the third compensation region ranges from 850 μm to 950 μm, and a distance between an inner edge of the fourth compensation region and the outer edge of the fourth compensation region ranges from 550 μm to 650 μm; an average width of the plurality of first metal lines in the third compensation region is equal to a fourth width, and an average width of the plurality of first metal lines in the fourth compensation region is equal to a fifth width; and an absolute difference between the fourth width and the first width ranges from 0 to 0.29 μm, and an absolute difference between the fifth width and the first width ranges from 0 to 0.25 μm.

4 . The display panel according to claim 1 , wherein:
the second region comprises the third sub-region, and a distance between the inner boundary and the first edge is less than 300 μm; an edge of the fifth compensation region away from the second opening region coincides with a portion of the first edge; an edge of each of the two sixth compensation regions away from the second opening region coincides with the first edge; and a portion of an edge of the seventh compensation region coincides with a portion of the inner boundary.

5 . The display panel according to claim 4 , wherein:
a length of the fifth compensation region along a second direction perpendicular to the first edge is greater than a half, while less than or equal to four fifths, of a distance between the inner boundary and the first edge; a length of the fifth compensation region along the first direction is greater than or equal to, while less than or equal to 1.3 times of, a diameter of the second opening region; and an average width of the plurality of first metal lines in the fifth compensation region is equal to a sixth width, and an absolute difference between the sixth width and the first width ranges from 0 to 0.32 μm.

6 . The display panel according to claim 4 , wherein:
a length of each of the two sixth compensation regions along a second direction perpendicular to the first edge is equal to a length of the fifth compensation region along the second direction; a length of each of the two sixth compensation regions along the first direction is greater than or equal to one third, while less than or equal to a half, of a length of the fifth compensation region along the first direction; and an average width of the plurality of first metal lines in the two sixth compensation regions is equal to a seventh width, and an absolute difference between the seventh width and the first width ranges from 0 to 0.29 μm.

7 . The display panel according to claim 4 , wherein:
a length of the seventh compensation region along a second direction perpendicular to the first edge is greater than one fifth, while less than or equal to one third, of a distance between the inner boundary and the first edge; a length of the seventh compensation region along the first direction is equal to a sum of a length of the fifth compensation region along the first direction and lengths of the two sixth compensation regions along the first direction; and an average width of the plurality of first metal lines in the seventh compensation region is equal to an eighth width, and an absolute difference between the eighth width and the first width ranges from 0 to 0.26 μm.

8 . The display panel according to claim 4 , wherein:
the third sub-region further comprises an eighth compensation region, which is located between the sixth compensation region and the seventh compensation region along

Assignees

• Hubei Yangtze Ind Innovation Center Of Advanced Display Co Ltd

Inventors

• Zheng Yaofei
• Wang Haocheng

Classifications

• G06F2203/04111

  Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate · CPC title

• G06F2203/04107

  Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• G06F3/0412

  Digitisers structurally integrated in a display · CPC title

• H10K59/873 Primary

  Encapsulations · CPC title