Display module and display device

1. A display module, comprising:

a display panel; and

an anti-reflection film disposed on a light-emitting side of the display panel, wherein:

the anti-reflection film includes a buffer layer and a function layer disposed on a side of the buffer layer away from the display panel, and

a refractive index of the buffer layer is greater than a refractive index of the function layer.

2. The display module according to claim 1 , wherein:

the function layer has a thickness D 1 and has the refractive index n 1 , wherein

D

1

⩾

λ

4

⁢

n

1

⁢

μ

,

μ is a preset constant coefficient, and λ is a wave constant smaller than a minimum wavelength of visible light.

3. The display module according to claim 2 , wherein:

λ<380 nm, 0.8<μ<1.2, and 1.2<n 1 <1.45.

4. The display module according to claim 1 , wherein:

the buffer layer has the refractive index n 2 , wherein n 2 >1.45.

5. The display module according to claim 1 , wherein:

a thickness of the buffer layer is in a range of approximately 2 μm-10 μm.

6. The display module according to claim 1 , wherein:

the buffer layer includes a light-transmitting organic layer, wherein the light-transmitting organic layer is mixed with light-transmitting inorganic particles.

7. The display module according to claim 6 , wherein:

a diameter of an inorganic particle of the light-transmitting inorganic particles is less than or equal to 50 nm.

8. The display module according to claim 1 , wherein:

the function layer is made of a hydrophobic and oleophobic material.

9. The display module according to claim 1 , wherein:

the function layer is made of one or more of fluorosilane, alkoxysilane, and hydrofluoroether.

10. The display module according to claim 1 , wherein:

the anti-reflection film is bonded and fixed to the light-emitting side of the display panel through an optical glue.

11. The display module according to claim 1 , wherein:

the display panel includes a plurality of sub-pixels arranged in an array, wherein adjacent sub-pixels of the plurality of sub-pixels are spaced apart by a pixel gap;

the anti-reflection film includes a plurality of first regions, wherein the plurality of first regions and the plurality of sub-pixels are arranged in a one-to-one correspondence; and

the anti-reflection film further includes a second region surrounding a first region of the plurality of first regions, wherein:

in a direction perpendicular to the display panel, the second region does not overlap with a sub-pixel of the plurality of sub-pixels,

the first region is light-transmitting, and

a light transmittance of the second region is less than a light transmittance of the first region.

12. The display module according to claim 11 , wherein:

in the second region, the buffer layer is mixed with light-absorbing particles, and/or

in the second region, the function layer is mixed with the light-absorbing particles.

13. The display module according to claim 12 , wherein:

the light-absorbing particles include carbon powder particles.

14. The display module according to claim 11 , further including:

a light-absorbing film layer disposed on a side of the buffer layer facing towards the display panel, wherein in the direction perpendicular to the display panel, the light-absorbing film layer does not overlap with the first region.

15. The display module according to claim 14 , wherein:

the light-absorbing film layer is a black ink layer.

16. The display module according to claim 1 , wherein the display panel includes:

a display array disposed on a surface of an array substrate, wherein the display array includes a plurality of sub-pixels arranged in an array, and an encapsulation layer disposed on a side of a sub-pixel of the plurality of sub-pixels away from the array substrate;

a quarter-wave plate disposed on a side of the encapsulation layer facing towards the anti-reflection film; and

a polarizer disposed on a side of the quarter-wave plate facing towards the anti-reflection film.

17. The display module according to claim 1 , wherein the display panel includes:

a display array disposed on a surface of an array substrate, wherein the display array includes a plurality of sub-pixels arranged in an array, and an encapsulation layer disposed on a side of a sub-pixel of the plurality of sub-pixels away from the array substrate;

a black matrix disposed on a side of the encapsulation layer facing towards the anti-reflection film, wherein the black matrix includes a plurality of openings corresponding to the plurality of sub-pixels in a one-to-one correspondence; and

a color resist disposed in an opening of the plurality of openings, wherein the color resist has a same color as light emitted by a corresponding sub-pixel, and blocks emission of light of any other color.

18. A display device, comprising:

a display module, the display module including:

a display panel; and

an anti-reflection film disposed on a light-emitting side of the display panel, wherein:

the anti-reflection film includes a buffer layer and a function layer disposed on a side of the buffer layer away from the display panel, and

a refractive index of the buffer layer is greater than a refractive index of the function layer.