Reflective liquid crystal display

A reflective liquid crystal display having a matrix of pixels formed on a semiconductor substrate, a transparent common electrode, and liquid crystals, the pixels on the semiconductor substrate being aligned in pixel columns and pixel rows, each of the pixels having a switching element formed in a well region of the semiconductor substrate, a reflective pixel electrode connected to the switching element, and a hold capacitor connected to the switching element, the transparent common electrode being formed on a transparent substrate and facing the reflective pixel electrodes, the liquid crystals being sealed between the reflective pixel electrodes and the transparent common electrode, the reflective liquid crystal display comprising:

• the pixels including first pixels aligned in first-pixel columns and second pixels aligned in second-pixel columns, the first- and second-pixel columns being alternated in a horizontal direction;
• a first fixed potential line formed along each of the first-pixel columns and connected to the well regions of the pixels in the first-pixel column, to supply a first fixed potential to the pixels in the first-pixel column and to the pixels in an adjacent one of the second-pixel columns through the well regions of the first-pixel column;
• and
• a second fixed potential line formed along each of the second-pixel columns and connected to diffusion capacitor electrodes formed on the hold capacitors of the pixels in the second-pixel column, to supply a second fixed potential to each pixel in the second-pixel column and to the pixels in an adjacent one of the first-pixel columns through the diffusion capacitor electrodes of the second-pixel column.

A reflective liquid crystal display having a matrix of pixels formed on a semiconductor substrate, a transparent common electrode, and liquid crystals, the pixels on the semiconductor substrate being aligned in pixel columns and pixel rows, each of the pixels having a switching element formed in a well region of the semiconductor substrate, a reflective pixel electrode connected to the switching element, and a hold capacitor connected to the switching element, the transparent common electrode being formed on a transparent substrate and facing the reflective pixel electrodes, the liquid crystals being sealed between the reflective pixel electrodes and the transparent common electrode, the reflective liquid crystal display comprising:

• the pixels including first pixels aligned in first-pixel columns, second pixels aligned in second-pixel columns, and at least one kind of third pixels aligned in third-pixel columns, the first- and second-pixel columns being alternated in a horizontal direction with the third-pixel column interposed between the first- and second-pixel columns;
• a first fixed potential line formed along each of the first-pixel columns and connected to the well regions of the pixels in the first-pixel column, to supply a first fixed potential to the pixels in the first-pixel column, to the pixels in an adjacent one of the second-pixel columns through the well regions of the first-pixel column, and to the pixels in an adjacent one of the third-pixel columns through the well regions of the first-pixel column;
• a second fixed potential line formed along each of the second-pixel columns and connected to diffusion capacitor electrodes formed on the hold capacitors of the pixels in the second-pixel column, to supply a second fixed potential to the pixels in the second-pixel column, to the pixels in an adjacent one of the first-pixel columns through the diffusion capacitor electrodes of the second-pixel column, and to the pixels in an adjacent one of the third-pixel columns through the diffusion capacitor electrodes of the second-pixel column;
• and
• a pattern line formed along each of the third-pixel columns or formed within each of the third pixels, the pattern line being connected to none of the first and second fixed potentials.