Frame display control in an image display having a liquid...

G - Physics – 02 – F

Patent

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Details

G02F 1/133 (2006.01) G09G 3/20 (2006.01) G09G 3/36 (2006.01) H04N 5/46 (2006.01) H04N 5/66 (2006.01)

Patent

CA 2223371

An image display device having a liquid crystal display panel in which display picture elements are arranged according to a dot matrix form includes a control circuit that controls the drive of a source driver and gate driver such that writing of signals for frame display in a horizontal direction is performed during the vertical blanking interval of input image signals. During the vertical blanking interval, the control circuit writes to the source driver each source selection signal of picture elements that are to display the horizontal frame and holds this data. The control circuit then generates sequential gate selection signals from the gate driver while supplying the held output of the source driver to the sources of the picture elements, and supplies horizontal frame display signals to the picture elements.

L'invention est un dispositif d'affichage d'images comportant un panneau d'affichage à cristaux liquides sur lequel les éléments d'image sont affichés en matrices de points. Le dispositif de l'invention contient un circuit qui commande le circuit d'attaque de source et le circuit d'attaque de porte de telle façon que l'écriture des signaux d'affichage des images dans le sens horizontal se fait durant l'intervalle de suppression de trame des signaux d'imagerie. Durant cet intervalle, ce circuit de commande transmet au circuit d'attaque de source chaque signal de sélection de source des éléments d'image pour l'affichage horizontal et conserve les données connexes. Il produit ensuite les signaux séquentiels de sélection de porte à partir du circuit d'attaque de porte tout en fournissant aux sources des éléments d'image les signaux de sortie du circuit d'attaque de source et en fournissant à ces mêmes éléments d'image les signaux d'affichage horizontal.

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