The invention discloses a pixel structure and an organic light emitting displayer using the same. The pixel structure comprises a plurality of pixels, wherein each pixel is composed of a plurality of sub-pixels, and one or more pixels constitute a pixel unit. Through the reasonable pixel distribution structure, the sub-pixels of every two adjacent pixels share an opening of a Mask for evaporation, the area of the opening of the Mask can be increased during evaporation, the technology manufacturing difficulty of the Mask is lowered, and the evaporation technology difficulty is also lowered. No gap needs to be reserved while evaporation is performed on the sub-pixels of every two adjacent pixels of the Mask, the requirement for the aperture ratio is met, and meanwhile the real high PPI can be achieved. In addition, strength of the Mask can be enhanced through the pixel structure, so that the Mask is not prone to deformation in a use process, the product yield is increased, service life of the Mask is prolonged, and cost is reduced.