A display apparatus, comprising: a substrate, having a pixel region and a non-pixel region, wherein, a pixel array of the pixel region is composed of a plurality of basic pixel units repeated along horizontal and vertical directions, and the pixel array has a plurality of pixel spaces each of which corresponds to one pixel (P11,P12,P13,P21,P22,P23), and the pixel array comprises at least one sub pixel (R12,G13,B22) located within the pixel spaces of at least two different pixels; the pixel array comprises first sub-pixels of a first color, second sub-pixels of a second color and third sub-pixels of a third color; an organic light emitting diode, located in the pixel region of the substrate and comprising a first electrode, an organic layer and a second electrode; and a driver, electrically connected to the organic light emitting diode for driving the organic light emitting diode, the driver comprising: an input unit, configured to receive an image signal to denote an image to be displayed on the display apparatus; a sub-pixel color rendering unit, configured to acquire first data denoting positions and gray values needed to be displayed of each of the first, second and third colors in the image received by the input unit, respectively; and characterised in that the sub-pixel color rendering unit is further configured to acquire second data, the second data is a proportion matrix, for each of the basic pixel units, the second data corresponding to each of the basic pixel units is determined by determining a proportion vector for each pixel (P11,P12,P13,P21,P22,P23) of the basic pixel unit firstly and determining the proportion matrix according to the proportion vector, wherein, the proportion vector of the pixel has three components denoting proportion coefficients of the first sub-pixel, second sub-pixel and third sub-pixel in the pixel respectively, and the proportion matrix is acquired by taking the component in the same position of each of the proportion vectors; for each of the sub-pixels contained in each of the pixels (P11,P12,P13,P21,P22,P23), the sub-pixel color rendering unit is configured to acquire third data according to the first data and the second data, the third data denoting a display gray value of each of the sub-pixels of the pixel in the pixel array; anc that the driver further comprises an output unit, configured to generate a plurality of signals according to the third data, which denote the display gray value of each of the sub-pixels of the pixel in the pixel array, and output the plurality of signals to the display apparatus. a substrate, having a pixel region and a non-pixel region, wherein, a pixel array of the pixel region is composed of a plurality of basic pixel units repeated along horizontal and vertical directions, and the pixel array has a plurality of pixel spaces each of which corresponds to one pixel (P11,P12,P13,P21,P22,P23), and the pixel array comprises at least one sub pixel (R12,G13,B22) located within the pixel spaces of at least two different pixels; the pixel array comprises first sub-pixels of a first color, second sub-pixels of a second color and third sub-pixels of a third color; an organic light emitting diode, located in the pixel region of the substrate and comprising a first electrode, an organic layer and a second electrode; and a driver, electrically connected to the organic light emitting diode for driving the organic light emitting diode, the driver comprising: an input unit, configured to receive an image signal to denote an image to be displayed on the display apparatus; a sub-pixel color rendering unit, configured to acquire first data denoting positions and gray values needed to be displayed of each of the first, second and third colors in the image received by the input unit, respectively; and characterised in that the sub-pixel color rendering unit is further configured to acquire second data, the second data is a proportion matrix, for each of the basic pixel units, the second data corresponding to each of the basic pixel units is determined by determining a proportion vector for each pixel (P11,P12,P13,P21,P22,P23) of the basic pixel unit firstly and determining the proportion matrix according to the proportion vector, wherein, the proportion vector of the pixel has three components denoting proportion coefficients of the first sub-pixel, second sub-pixel and third sub-pixel in the pixel respectively, and the proportion matrix is acquired by taking the component in the same position of each of the proportion vectors; for each of the sub-pixels contained in each of the pixels (P11,P12,P13,P21,P22,P23), the sub-pixel color rendering unit is configured to acquire third data according to the first data and the second data, the third data denoting a display gray value of each of the sub-pixels of the pixel in the pixel array; anc that the driver further comprises an output unit, configured to generate a plurality of signals according to the third data, which denote the display gray value of each of the sub-pixels of the pixel in the pixel array, and output the plurality of signals to the display apparatus.