Quantum dot color filter substrate and manufacturing method thereof

A quantum dot (QD) color filter (CF) substrate, which comprises:

• a substrate, a CF layer disposed on the substrate, and a QD layer disposed on the CF layer;
• the substrate comprising:
• red sub-pixel areas, green sub-pixel areas, and blue sub-pixel areas;
• the CF layer comprising a red color-resist layer, a green color-resist layer and an organic transparent layer disposed respectively on the corresponding red sub-pixel areas, green sub-pixel areas, and blue sub-pixel areas;
• the QD layer comprising:
• a first QD layer located on the red sub-pixel areas and green sub-pixel areas, and a second QD layer located on the blue sub-pixel areas;
• the QD layer being formed by QD gel, and the QD gel being obtained by mixing and curing a gel with a red QD material and a green QD material;
• the red QD material and the green QD material in the first QD layer emitting red and green light respectively under the excitement by blue light;
• irreversible fluorescence quenching occurring for the QD material in the second QD layer under long time UV light irradiation for 3-40 hours, and the QD material in the second QD layer not emitting light when excited;
• the QD CF substrate being used to a display using blue backlight.

A quantum dot (QD) color filter (CF) substrate, which comprises:

• a substrate, a CF layer disposed on the substrate, and a QD layer disposed on the CF layer;
• the substrate comprising:
• red sub-pixel areas, green sub-pixel areas, and blue sub-pixel areas;
• the CF layer comprising a red color-resist layer, a green color-resist layer and an organic transparent layer disposed respectively on the corresponding red sub-pixel areas, green sub-pixel areas, and blue sub-pixel areas;
• the QD layer comprising:
• a first QD layer located on the red sub-pixel areas and green sub-pixel areas, and a second QD layer located on the blue sub-pixel areas;
• the QD layer being formed by QD gel, and the QD gel being obtained by mixing and curing a gel with a red QD material and a green QD material;
• the red QD material and the green QD material in the first QD layer emitting red and green light respectively under the excitement by blue light;
• irreversible fluorescence quenching occurring for the QD material in the second QD layer under long time UV light irradiation for 3-40 hours, and the QD material in the second QD layer not emitting light when excited;
• the QD CF substrate being used to a display using blue backlight;
• wherein the display is an liquid crystal display (LCD), an organic light-emitting diode (OLED) display, or a quantum dot light-emitting diode (QLED) display;
• wherein the thickness of the QD layer is 0.5-20 um;
• wherein the QD material in the QD gel is one or more of the II-VI group QD material and I-III-VI group QD material;
• wherein the QD material in the QD gel is one or more of ZnCdSe2, CdSe, CdTe, CuInS2, and ZnCuInS3.