Display device, data driving circuit and display panel

A data driving circuit for transferring image data to a display panel in which a plurality of pixels including a first subpixel, a second subpixel and a third subpixel are arranged in a matrix form, the data driving circuit comprising:

• a plurality of first latch circuits configured to receive image data transmitted from a timing controller;
• a plurality of second latch circuits each configured to receive image data from one of the plurality of first latch circuits at a specified timing;
• a plurality of digital-to-analog converters configured to convert the image data of the plurality of second latch circuits into analog image data;
• and
• a plurality of output buffers configured to adjust an output level of the analog image data to supply to the display panel,
• wherein the second latch circuit corresponding to the first subpixel is connected in a 1:1 manner to the corresponding first latch circuit,
• two second latch circuits corresponding to two second subpixels in a neighborhood and two third subpixels in a neighborhood with same color in a first direction are connected to one first latch circuit among the plurality of first latch circuits,
• a luminance data voltage is supplied to the first subpixel, and
• a same data voltage is supplied to two second subpixels in a neighborhood or two third subpixels in a neighborhood with same color.

A display panel comprising:

• a plurality of pixels including a first pixel including at least first, second and third subpixels and a second pixel including at least another first subpixel emitting a same color of light as the first subpixel, another second subpixel emitting a same color of light as the second subpixel, and another third subpixel emitting a same color of light as the third subpixel, which are arranged in a matrix form;
• and
• a plurality of data pads connecting respectively the second subpixel and the another second subpixel, and the third subpixel and the another third subpixel in a first direction,
• wherein while data voltages are supplied to the first and second pixels, different first data voltages are supplied to the first subpixel and the another first subpixel, and a same second data voltage is supplied to the second subpixel and the another second subpixel.