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

Claim 6:
7. A preparation method of a quantum dot display panel, comprising:
providing a backlight module;
preparing a quantum dot color filter structure, wherein the quantum dot color filter structure is positioned on a light exit side of the backlight module; the quantum dot color filter structure comprises at least a red quantum dot color filter unit, a green quantum dot color filter unit, and a composite quantum dot color filter unit; the red quantum dot color filter unit and the green quantum dot color filter unit are arranged in a laminated mode, the red quantum dot color filter unit is closer to the backlight module than the green quantum dot color filter unit, and any two of the red quantum dot color filter unit, the green quantum dot color filter unit, or the composite quantum dot color filter unit do not overlap each other; the composite quantum dot color filter unit comprises at least a red quantum dot color filter subunit and a green quantum dot color filter subunit which are arranged in a laminated mode; and the red quantum dot color filter subunit is closer to the backlight module than the green quantum dot color filter subunit;
forming a first reflecting layer on a side of the quantum dot color filter structure facing away from the backlight module, wherein the first reflecting layer covers the red quantum dot color filter unit and the green quantum dot color filter unit; and
forming a second reflecting layer on a side of the backlight module facing away from the quantum dot color filter structure, wherein the second reflecting layer covers the quantum dot color filter structure.