Patent ID: 11971166
Assignee: SHENZHEN PLANCK INNOVATION TECHNOLOGY CO., LTD
Field: Semiconductors (Electrical engineering)
Classification: CPC F  G  H | IPC F  G  H

Claim 8:
9. The method of claim 7, wherein the backlight module comprises a blue backlight module; and
preparing the quantum dot color filter structure comprises:
providing a first quantum dot substrate;
forming a plurality of first groove structures on the first quantum dot substrate by using a first mask;
filling the plurality of first groove structures with a red quantum dot photoresist to form the red quantum dot color filter unit;
providing a second quantum dot substrate, wherein the second quantum dot substrate is positioned on a side of the red quantum dot color filter unit facing away from the backlight module;
forming a plurality of second groove structures on the second quantum dot substrate by using a second mask; and
filling a portion of the plurality of second groove structures with a green quantum dot photoresist to form the green quantum dot color filter unit; and filling a remaining portion of the plurality of second groove structures with a red quantum dot photoresist, a green quantum dot photoresist, and a blue quantum dot photoresist which are arranged in sequence in a laminated mode to form the composite quantum dot color filter unit;
preparing the quantum dot color filter structure comprises:
providing a first quantum dot substrate;
forming a plurality of first groove structures on the first quantum dot substrate by using a first mask;
filling a portion of the plurality of first groove structures with a red quantum dot photoresist to form the red quantum dot color filter unit; and filling a remaining portion of the plurality of first groove structures with a red quantum dot photoresist, a green quantum dot photoresist, and a blue quantum dot photoresist which are arranged in sequence in a laminated mode to form the composite quantum dot color filter unit;
providing a second quantum dot substrate, wherein the second quantum dot substrate is positioned on a side of the red quantum dot color filter unit facing away from the backlight module;
forming a plurality of second groove structures on the second quantum dot substrate by using a second mask; and
filling the plurality of second groove structures with a green quantum dot photoresist to form the green quantum dot color filter unit;
or,
preparing the quantum dot color filter structure comprises:
providing a first quantum dot substrate;
forming a plurality of first groove structures on the first quantum dot substrate by using a first mask;
filling a portion of the plurality of first groove structures with a red quantum dot photoresist to form the red quantum dot color filter unit; and filling a remaining portion of the plurality of first groove structures with a red quantum dot photoresist to form the red quantum dot color filter subunit in the composite quantum dot color filter unit;
providing a second quantum dot substrate, wherein the second quantum dot substrate is positioned on a side of the red quantum dot color filter unit facing away from the backlight module;
forming a plurality of second groove structures on the second quantum dot substrate by using a second mask;
filling a portion of the plurality of second groove structures with a green quantum dot photoresist to form the green quantum dot color filter unit; and filling a remaining portion of the plurality of second groove structures with a green quantum dot photoresist to form the green quantum dot color filter subunit in the composite quantum dot color filter unit,
wherein projections of the red quantum dot color filter subunit and the green quantum dot color filter subunit on the first quantum dot substrate overlap.