Granted Patent B2

US 12,568,756 · App. 17/868,027 · Granted Mar 3, 2026

Inventors: Kai Yang (Kunshan, CN); Xue Cui (Kunshan, CN); Mingxing Liu (Kunshan, CN); Weili Li (Kunshan, CN); Wenxing Li (Kunshan, CN)

Assignee: KunShan Go-Visionox Opto-Electronics Co., Ltd

H10K59/88H01L22/20H01L22/24H01L23/544

Abstract

Claims (18)

1 . A display panel motherboard, including a plurality of display panel forming areas distributed in an array and a test area, the display panel motherboard comprising:

an array mother substrate;

a light-emitting layer, disposed on a surface of a side of the array mother substrate and located in the plurality of display panel forming areas; and

a test component, disposed on the surface of the array mother substrate and located in the test area, the test component comprising a plurality of test blocks, wherein each test block of the plurality of test blocks comprises:

a fluorescent layer, disposed on the surface of the array mother substrate and emitting light upon being irradiated by activation light;

a target test layer, disposed on the side of the fluorescent layer facing away from the surface of the array mother substrate, and an orthographic projection of the fluorescent layer on the test area covering an orthographic projection of the target test layer on the test area; and

a positioning reference portion, disposed at a peripheral side of the target test layer for determining a preset formation position for the target test layer,

wherein the light-emitting layer includes a first display area and a second display area disposed at least partially around the first display area, and a pixel density of the first display area is less than a pixel density of the second display area, some test blocks of the plurality of test blocks form a first test group, and a distribution density of the test blocks in the first test group is equivalent to the pixel density of the first display area; and the other test blocks of the plurality of test blocks form a second test group, and a distribution density of the test blocks in the second test group is equivalent to the pixel density of the second display area.

2 . The display panel motherboard of claim 1 , wherein the light-emitting layer comprises an electron injection layer, an electron transport layer, an organic light-emitting layer, a hole transport layer, and a hole injection layer; and materials forming the fluorescent layer comprise at least one of materials constituting the electron injection layer, materials constituting the electron transport layer, materials constituting the organic light-emitting layer, materials constituting the hole transport material layer, and materials constituting the hole injection layer.

3 . The display panel motherboard of claim 1 , wherein the positioning reference portion comprises a first positioning component and a second positioning component spaced apart from each other, the first positioning component comprises at least one first positioning portion formed as a cross, and the second positioning component comprises a plurality of second positioning portions each formed as a line.

4 . The display panel motherboard of claim 3 , wherein the second positioning component comprises three second positioning portions distributed in a triangle layout.

5 . The display panel motherboard of claim 3 , wherein the target test layer comprises a cathode material layer, a distance from edges of a projection of the cathode material layer on the array mother substrate to corresponding edges of a projection of the fluorescent layer on the array mother substrate as measured anywhere is constant, and the array mother substrate has at least one of the second positioning portions provided at any position next to each edge of the cathode material layer.

6 . The display panel motherboard of claim 5 , wherein the projection of the cathode material layer on the array mother substrate is a tetragonum, a distance from edges of a tetragonum projection of the cathode material layer on the array mother substrate to corresponding edges of a projection of the fluorescent layer on the array mother substrate as measured anywhere is constant, a center point of the cathode material layer coincides with a center point of the fluorescent layer, and an intersection point of extension lines of two second positioning portions along a first direction and a second direction respectively is set as a preset center point of the target test layer.

7 . The display panel motherboard of claim 6 , further comprising an anode material layer disposed on the side of the fluorescent layer facing away from the target test layer, and an orthographic projection of the anode material layer on the test area covering the orthographic projection of the fluorescent layer on the test area.

8 . The display panel motherboard of claim 3 , wherein there are three second positioning portions that are distributed in a triangle layout, to determine a disposing angle of the target test layer with reference to the array mother substrate,

an intersection point of extension lines of the second positioning portions along a first direction and a second direction perpendicular to the first direction respectively is set as a preset center point of the target test layer.

9 . The display panel motherboard of claim 1 , wherein the test area is adjacent to the plurality of display panel forming areas.

10 . The display panel motherboard of claim 1 , wherein the test area is disposed along one side of the plurality of display panel forming areas.

Assignments (1)

Priority Claims (1)

Continuity (2)

References Cited (24)