Front light source and display device comprising the front light source

A front light source comprising:

• a transparent substrate;
• a plurality of light source elements provided on the transparent substrate;
• a plurality of light absorbing elements provided at front sides of the plurality of light source elements;
• and
• a plurality of quantum dot elements provided in the transparent substrate;
• wherein, the plurality of light absorbing elements and the plurality of light source elements are in a one-to-one correspondence, an orthographic projection of each of the light source elements onto the transparent substrate is within an orthographic projection of one of the light absorbing elements corresponding to the each light source element onto the transparent substrate, and an area of the orthographic projection of the each of the light source elements onto the transparent substrate is smaller than an area of the orthographic projection of the one of the light absorbing elements corresponding to the each light source element onto the transparent substrate;
• wherein, the plurality of quantum dot elements and the plurality of light source elements are in a one-to-one correspondence, and an orthographic projection of each of the light source elements onto the transparent substrate is within an orthographic projection of one of the quantum dot elements corresponding to the each light source element onto the transparent substrate;
• wherein, a size of each of the quantum dot elements in a direction parallel to the transparent substrate is greater than a size of one of the light source elements corresponding to the each quantum dot element in the direction parallel to the transparent substrate, and a difference between the size of each of the quantum dot elements in the direction parallel to the transparent substrate and the size of one of the light source elements corresponding to the each quantum dot element in the direction parallel to the transparent substrate is determined based on a distance between the quantum dot element and the one of the light source elements corresponding to the quantum dot element in a direction perpendicular to the transparent substrate.