System and method of performing dot inversion with standard drivers and backplane on novel display panel layouts
View Patent ↗A system and method are disclosed for performing dot inversion with standard drivers and backplane on novel display panel layouts. Suitable dot inversion schemes are implemented on a liquid crystal display having a panel and a driver circuit. The panel substantially comprises a subpixel repeating group, the group having a even number of subpixels across a first direction. The driver circuit comprises a set of drivers, coupled to the panel providing image data signals to the panel, the signals effecting substantially a dot inversion scheme to the panel. The drivers are also substantially connected to the columns of the panel in a sequence along the driver circuit wherein at least one driver is not connected to a column of the panel, and at least two subpixel regions of the panel having same colored subpixels in the two regions with substantially different polarities.
1. A liquid crystal display comprising:
a panel substantially comprising a subpixel repeating group, the subpixel repeating group having an even number of subpixels disposed in one of a row and column direction on said panel, wherein the subpixel repeating group comprises four colored subpixels disposed in said direction; and
a driver circuit, comprising a set of drivers, coupled to the panel providing image data signals to the panel, the signals effecting substantially a polarity scheme to the panel, the drivers being substantially connected to subpixels disposed in one of the columns and rows of the panel in a sequence along the driver circuit wherein at least one driver is not connected to said subpixels of the panel, and wherein, in at least first and second subpixel regions of the panel, each of said four colored subpixels disposed in said direction in the second subpixel region have different polarities than each of said four colored subpixels disposed in said direction in the first subpixel region.
2. The liquid crystal display of claim 1 , wherein the polarity scheme is a 1×1 dot inversion scheme.
3. The liquid crystal display of claim 1 , wherein the polarity scheme is a 1×2 dot inversion scheme.
4. The liquid crystal display of claim 1 , wherein the number of subpixel regions having the same colored subpixels with different polarities occur with a frequency such that undesirable visual effects are abated.
5. The liquid crystal display of claim 1 , wherein the subpixel repeating group comprises a sequence of red R green G blue B green G colored subpixels disposed in said first direction.
6. A method for effecting a polarity scheme upon subpixels of a liquid crystal display, the display substantially comprising a subpixel repeat grouping having an even number of subpixels disposed in one of a row and column direction of the liquid crystal display, and wherein the subpixel repeating group comprises at least four colored subpixels disposed in said direction, the method comprising:
determining at least first and second regions of subpixels in which same colored subpixels disposed in said direction have the same polarity;
connecting a driver circuit having a plurality of drivers to one of row and column lines coupled to said subpixels such that at least one driver is not coupled to said subpixels; and
applying a polarity scheme to the subpixels by way of said plurality of drivers connected to said subpixels in order to provide alternating regions of polarity for said same colored subpixels such that each of said four colored subpixels disposed in said direction in the second subpixel region have different polarities than each of said four colored subpixels disposed in said direction in the first subpixel region.
7. The method of claim 6 , further comprising:
providing a sufficient number of adjacent regions with different polarities for said same colored subpixels with a frequency of polarity changes to abate undesirable visual effects.
8. The method of claim 6 wherein the polarity scheme is a 1×1 dot inversion scheme.
9. The method of claim 6 wherein the polarity scheme is a 1×2 dot inversion scheme.
10. The method of claim 6 wherein the subpixel repeating group comprises a sequence of red R green G blue B green G colored subpixels disposed in said first direction.