Display panel

A display panel, comprising:

• a first substrate comprising a plurality of display units arranged in a matrix and forming an image display region, wherein the display units comprise m*n pixels arranged in an m*n matrix, each said pixel has at least three sub-pixels, m and n are positive integers, m≧2, and n≧2;
• a second substrate opposite to the first substrate;
• and
• a light shielding layer located between the first substrate and the second substrate, wherein the light shielding layer comprises a plurality of extending portions, a first sub-extending portion and a second sub-extending portion, a projection of one of the extending portions on the first substrate overlaps at least two of the pixels, one of the at least two of the pixels is a first pixel, the other pixels of the at least two of the pixels are second pixels, the first pixel has a first sub-pixel having a largest overlapping area overlapping with the projection of the one of the extending portions, the second pixels have smaller overlapping areas overlapping with or are not overlapping with the projection of the one of the extending portions, each column or each row of each said display unit comprises at most one said first pixel, and in the image display region, all of the pixels adjacent to the first pixel are the second pixels, and
• wherein a projection of the first sub-extending portion on the first substrate overlaps with the first sub-pixel of the first pixel, wherein a largest width of the one of the extending portions in a direction is greater than a largest width of the first sub-extending portion in the direction within the first sub-pixel of the first pixel, and the one of the extending portions is adjacent to the first sub-extending portion, a projection of the second sub-extending portion on the first substrate overlaps with a second sub-pixel of the first pixel, the second sub-pixel is adjacent to the first sub-pixel, and an aperture ratio of the first sub-pixel is smaller than an aperture ratio of the second sub-pixel.