Display device

A display device comprising:

• a first substrate, and a second substrate provided so as to oppose the first substrate;
• and
• a plurality of pixels arranged in a matrix pattern, wherein:
• the first substrate includes a TFT provided for each of the plurality of pixels, the TFT including an oxide semiconductor layer including a channel region, a source region and a drain region;
• the second substrate includes a color filter layer and a light blocking layer;
• the color filter layer includes a first color filter, a second color filter and a third color filter that allow light of different colors to pass therethrough;
• at least one of the first color filter, the second color filter and the third color filter has an average transmittance of 0.2% or less for visible light having a wavelength of 450 nm or less;
• in pixels provided with color filters having an average transmittance of 0.2% or less for visible light having a wavelength of 450 nm or less, the light blocking layer (a) includes a TFT shading portion extending along a channel length direction and shading at least a portion of the TFT, the TFT shading portion having a width that is less than or equal to a length of the oxide semiconductor layer along a channel width direction;
• or (b) includes a TFT shading portion extending along the channel width direction and shading at least a portion of the TFT, the TFT shading portion having a width that is less than or equal to the length of the oxide semiconductor layer along the channel length direction;
• or (c) includes no TFT shading portion that shades at least a portion of the TFT.