A display panel comprises a first substrate, a second substrate including a display area and a peripheral area surrounding the display area, a transistor layer including, formed in the display area of the substrate, at least one transistor connected to a gate line and a data line, at least one color filter formed in a plurality of pixel regions on the transistor layer, a light blocking member disposed between the color filters, at least one pixel electrode formed on the color filter, an opaque spacing part formed on the color filter corresponding to the transistor so as to maintain a cell gap between the first and second substrates. The light blocking member in some embodiments of the invention is not formed on the first and second transistors to allow for inspection of a channel in the transistor.