US 11,380,662 B2 · Display backplane and manufacturing method thereof, display mother-substrate, and display panel

Abstract

The present disclosure provides a manufacturing method of a display backplane which includes a base substrate having first, second and third portions. The manufacturing method includes: forming a flexible layer extending from the first portion to and covering the second and third portions; forming a pixel driving circuit on the first portion and a backlight circuit on the third portion, wherein a part of a film layer of the pixel driving circuit extends from the first portion to and covers the second and third portions; removing a film layer on a side of the flexible layer away from the base substrate and on the second portion; separating the flexible layer from the second and third portions; removing the second and third portions; and bending a film layer separated from the third portion to a side of the first portion away from the flexible layer.

Claims20

Dependent claims

A display backplane, comprising:

a base substrate having a first-side surface and a second-side surface opposite each other;
a flexible layer on the base substrate, wherein the flexible layer wraps the first-side surface and extends to cover the second-side surface;
a pixel driving circuit on the first-side surface;
and
a backlight circuit on the second-side surface;
wherein the pixel driving circuit is on a side of the flexible layer away from the first-side surface, and the backlight circuit is on a side of the flexible layer away from the second-side surface.

3 more elements

A display mother-substrate, comprising multiple sub-substrates arranged in an array;

wherein a sub-substrate of the multiple sub-substrates comprises a base substrate;
the base substrate has a first portion, a second portion, and a third portion which are arranged in a first direction in sequence and adjacent to each other;
and a flexible layer is provided on the base substrate, and extends from the first portion to the second portion and the third portion and covers the second portion and the third portion;
wherein
a pixel driving circuit is formed on the first portion and on a side of the flexible layer away from the base substrate;
and a backlight circuit is formed on the third portion and on the side of the flexible layer away from the base substrate.

3 more elements

A manufacturing method of a display backplane, the display backplane comprising a base substrate;

and the base substrate having a first portion, a second portion, and a third portion which are arranged in a first direction in sequence and adjacent to each other;
wherein the manufacturing method comprises:
forming a flexible layer on the base substrate, the flexible layer extending from the first portion to the second portion and the third portion and covering the second portion and the third portion;
forming a pixel driving circuit on the first portion and forming a backlight circuit on the third portion;
wherein a film layer of the pixel driving circuit extends from the first portion to the second portion and the third portion and covers the second portion and the third portion;
removing a part of the film layer of the pixel driving circuit which is on a side of the flexible layer away from the base substrate and on the second portion;
separating the flexible layer from the second and third portions of the base substrate;
removing the second and third portions of the base substrate;
and
bending a part of the flexible layer including the backlight circuit thereon separated from the third portion to a side of the first portion of the base substrate away from the flexible layer.

7 more elements

Dependencies are inferred from the claim text.

Display backplane and manufacturing method thereof, display mother-substrate, and display panel

Life of this patent

Display backplane and manufacturing method thereof, display mother-substrate, and display panel

Life of this patent

Abstract

Claims20