Pixel unit

A pixel unit comprising:

• a plurality of signal lines;
• at least two power lines;
• and
• two pixel groups respectively corresponding to and electrically connected to the signal lines, wherein each of the pixel groups has three sub-pixels of different colors, two of the sub-pixels of a same color are respectively located in different pixel groups of the pixel groups, each of the sub-pixels of the same color have a primary driving unit, a sub-driving unit, and a current-driving device, and the current-driving devices of the sub-pixels of the same color respectively correspond to and are electrically connected to the power lines, wherein
• when in a first state, the primary driving unit of one of the sub-pixels of the same color is electrically connected to the current-driving device of the one of the sub-pixels of the same color through a first bridge electrode, the primary driving unit of the other one of the sub-pixels of the same color is electrically connected to the current-driving device of the other one of the sub-pixels of the same color through a second bridge electrode, and an open circuit is formed between the sub-driving unit of one of the sub-pixels of the same color and one of the power lines and is formed between the sub-driving unit of the other one of the sub-pixels of the same color and the primary driving unit of the one of the sub-pixels as well as the first bridge electrode, respectively,
• when in a second state, the primary driving unit of the one of the sub-pixels of the same color is electrically connected to the current-driving device of the one of the sub-pixels of the same color through the first bridge electrode, the sub-driving unit of the other one of the sub-pixels of the same color is electrically connected to the current-driving device of the one of the sub-pixels of the same color through a third bridge electrode, and an open circuit is formed between the sub-driving unit of one of the sub-pixels of the same color and one of the power lines and is formed between the primary driving unit as well as the current-driving device of the other one of the sub-pixels of the same color and the primary driving unit of the one of the sub-pixels, respectively.