Pixel structure having common sub-pixels and OLED display panel incorporating the pixel structure
A pixel structure and an organic light-emitting diode (OLED) display panel incorporating the pixel structure are disclosed. The pixel structure includes a plurality of pixel units ( 110 ) arranged in an array, each pixel unit comprising a first sub-pixel ( 111 ), a second sub-pixel ( 112 ) and a third sub-pixel ( 113 ). The second sub-pixel ( 112 ) and the third sub-pixel ( 113 ) are common to four adjacent pixel units ( 110 ). As a result, a higher aperture ratio of the sub-pixels, an increased design margin and reduced process difficulty can be obtained.
1. A pixel structure, comprising a plurality of pixel units arranged in an array, each pixel unit comprising a first sub-pixel, a second sub-pixel and a third sub-pixel, each of the second and third sub-pixels being an integral structure, the second and third sub-pixels being common to four adjacent ones of the pixel units,
wherein adjacent four third sub-pixels are arranged to define a quadrilateral encompassing one second sub-pixel and adjacent four first sub-pixels so that four pixel units are formed, wherein each of the four pixel units comprises one of the four third sub-pixels, one of the four first sub-pixels and the one second sub-pixel shared in the four pixel units, each of the four first sub-pixels located between a corresponding one of the four third sub-pixels and the one second sub-pixel shared in the four pixel units,
wherein each first sub-pixel is disposed on a line segment connecting centers of the third sub-pixel and the second sub-pixel positioned in a center of the quadrilateral, and
wherein the first sub-pixel is a rectangle, each of the second and third sub-pixels is a square, two opposite short sides of each first sub-pixel are respectively substantially aligned with corresponding sides of its adjacent second and third sub-pixels.
2. The pixel structure of claim 1 , wherein short sides of each first sub-pixel are parallel to the line segment connecting centers of its adjacent second and third sub-pixels.
3. The pixel structure of claim 1 , wherein the first, second and third sub-pixels in one pixel unit are symmetric to corresponding ones in an adjacent pixel unit.
4. The pixel structure of claim 1 , wherein short sides of each first sub-pixel are perpendicular to the line segment connecting centers of its adjacent second and third sub-pixels.
5. The pixel structure of claim 1 , wherein the first sub-pixel has an area smaller than both an area of the second sub-pixel and an area of the third sub-pixel.
6. An OLED display panel, comprising a pixel structure, the pixel structure comprising a plurality of pixel units arranged in an array, each pixel unit comprising a first sub-pixel, a second sub-pixel and a third sub-pixel, each of the second and third sub-pixels being an integral structure, the second and third sub-pixels being common to four adjacent ones of the pixel units,
wherein adjacent four third sub-pixels are arranged to define a quadrilateral encompassing one second sub-pixel and adjacent four first sub-pixels so that four pixel units are formed, wherein each of the four pixel units comprises one of the four third sub-pixels, one of the four first sub-pixels and the one second sub-pixel shared in the four pixel units, each of the four first sub-pixels located between a corresponding one of the four third sub-pixels and the one second sub-pixel shared in the four pixel units,
wherein each first sub-pixel is disposed on a line segment connecting centers of the third sub-pixel and the second sub-pixel positioned in a center of the quadrilateral, and
wherein the first sub-pixel is a rectangle, each of the second and third sub-pixels is a square, two opposite short sides of each first sub-pixel are respectively substantially aligned with corresponding sides of its adjacent second and third sub-pixels.