Color film substrate, display panel, and display device

A display panel, comprising:

• a color film substrate;
• and
• an array substrate disposed opposing to the color film substrate,
• wherein:
• the color film substrate includes:
• a substrate;
• a color filter layer disposed on the substrate;
• and
• a color conversion layer disposed on a side of the color filter layer away from the substrate,
• wherein:
• the array substrate includes a plurality of pixel units;
• in an area of the color conversion layer corresponding to each pixel unit of the plurality of pixel units, the color conversion layer includes at least two color conversion units;
• colors of lights generated by color conversion materials of different color conversion units excited by excitation light are different;
• and
• in a same color conversion unit, a concentration of a color conversion material in a side of the color conversion layer adjacent to the color filter layer is C1, a concentration of a color conversion material in a side of the color conversion layer away from the color filter layer is C2, and |C1−C2|>0;
• a side of the color filter substrate having the color conversion unit is disposed adjacent to a side of the array substrate having a light-emitting component;
• the light-emitting component is configured to emit the excitation light;
• and
• the excitation light is used to excite the color conversion unit to generate light of a corresponding color.

A display device, comprising:

• a display panel, including:
• a color film substrate;
• and
• an array substrate disposed opposing to the color film substrate, wherein:
• the color film substrate includes:
• a substrate;
• a color filter layer disposed on the substrate;
• and
• a color conversion layer disposed on a side of the color filter layer away from the substrate,
• wherein:
• the array substrate includes a plurality of pixel units;
• in an area of the color conversion layer corresponding to each pixel unit, the color conversion layer includes at least two color conversion units;
• colors of lights generated by color conversion materials of different color conversion units excited by excitation lights are different;
• and
• in a same color conversion unit, a concentration of color conversion material at a side of the color conversion layer adjacent to the color filter layer is C1, a concentration of color conversion material at a side of the color conversion layer away from the color filter layer is C2, and |C1−C2|>0;
• a side of the color film substrate having the color conversion unit is disposed adjacent to a side of the array substrate having a light-emitting component;
• the light-emitting component is configured to emit the excitation light;
• and
• the excitation light is used to excite the color conversion unit to generate light of a corresponding color.