Filter unit, color film structure, display panel, and display device

1. A color film structure, comprising a filter unit group and color resists of a plurality of colors, wherein the filter unit group comprises a plurality of filter units arranged in an array, each of the filter units comprising a color resist aperture, at least part of edges of an opening of the color resist aperture having equal distances to a geometric center of the opening;

wherein the color resist of one color is accommodated in the color resist aperture of each of the filter units in the filter unit group;

wherein a pore size of the color resist aperture gradually increases along a direction towards a light exit side of the color resist aperture, and a flared structure is employed at the opening, which is at the light exit side, of the color resist aperture to increase a size of the opening of the color resist aperture; and

wherein the opening of the color resist aperture is in a shape of a regular polygon, at least part of vertex angles of the regular polygon are rounded angles, and distances between the at least part of vertex angles of the regular polygon and the geometric center of the opening are equal;

wherein the size of the opening of the color resist aperture of the second filter unit is less than the size of the opening of the color resist aperture of the third filter unit, and

wherein a ratio of the size of the opening of the color resist aperture of the first filter unit to the size of the opening of the color resist aperture of the second filter unit to the size of the opening of the color resist aperture of the third filter unit is 43:55:63, or, wherein the size of the opening of the color resist aperture of the first filter unit is not less than 365.5 μm and not greater than 494.5 μm, the size of the opening of the color resist aperture of the second filter unit is not less than 467.5 μm and not greater than 632.5 μm, and the size of the opening of the color resist aperture of the third filter unit is not less than 535.5 μm and not greater than 724.5 μm.

2. The color film structure according to claim 1 , wherein the color resists of the plurality of colors comprise a first color resist, a second color resist, and a third color resist, and the filter unit group comprises a first filter unit, a second filter unit, and a third filter unit, wherein the first color resist is accommodated in the color resist aperture of the first filter unit, the second color resist is accommodated in the color resist aperture of the second filter unit, and the third color resist is accommodated in the color resist aperture of the third filter unit; and

a size of the opening of the color resist aperture of the first filter unit is less than a size of the opening of the color resist aperture of the second filter unit, and is less than a size of the opening of the color resist aperture of the third filter unit.

3. The color film structure according to claim 2 , wherein the third filter unit is disposed between the first filter unit and the second filter unit.

4. The color film structure according to claim 3 , wherein the third filter unit is adjacent to at least two of the first filter units, and the third filter unit is adjacent to at least one of the second filter units.

5. The color film structure according to claim 1 , wherein the first color resist is a green color resist, the second color resist is a red color resist, and the third color resist is a blue color resist.

6. The color film structure according to claim 1 , further comprising: a black matrix disposed between two adjacent filter units.

7. A display panel, comprising a backlight assembly and a color film structure; wherein a side of the backlight assembly is attached to a side of the color film structure; and

the color film structure comprises a filter unit group and color resists of a plurality of colors, wherein the filter unit group comprises a plurality of filter units arranged in an array, each of the filter units comprising a color resist aperture, and at least part of edges of an opening of the color resist aperture having equal distances to a geometric center of the opening, wherein a color resist of one color is accommodated in the color resist aperture of each of the filter units in the filter unit group;

wherein a pore size of the color resist aperture gradually increases along a direction towards a light exit side of the color resist aperture, and a flared structure is employed at the opening, which is at the light exit side, of the color resist aperture to increase a size of the opening of the color resist aperture; and

wherein the opening of the color resist aperture is in a shape of a regular polygon, at least part of vertex angles of the regular polygon are rounded angles, and distances between the at least part of vertex angles of the regular polygon and the geometric center of the opening are equal;

wherein the size of the opening of the color resist aperture of the second filter unit is less than the size of the opening of the color resist aperture of the third filter unit, and

wherein a ratio of the size of the opening of the color resist aperture of the first filter unit to the size of the opening of the color resist aperture of the second filter unit to the size of the opening of the color resist aperture of the third filter unit is 43:55:63, or, wherein the size of the opening of the color resist aperture of the first filter unit is not less than 365.5 μm and not greater than 494.5 μm, the size of the opening of the color resist aperture of the second filter unit is not less than 467.5 μm and not greater than 632.5 μm, and the size of the opening of the color resist aperture of the third filter unit is not less than 535.5 μm and not greater than 724.5 μm.

8. A display device, comprising a power supply assembly and the display panel as defined in claim 7 , wherein the power supply assembly is configured to supply power to a backlight assembly in the display panel.