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US 7,283,119 B2Granted
Color electrophoretic display device
AssigneeCanon Kabushiki Kaisha
InventorEtsuro Kishi
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AssigneeCanon Kabushiki Kaisha
InventorEtsuro Kishi
Estimating the term…
An electrophoretic display device includes unit cells each containing i) two sets of display electrodes and a collection electrode and ii) two kinds of translucent colored electrophoretic particles having charge polarities different from each other. The unit cells are constructed so that the two display electrodes are superimposingly disposed to display the stated display color by the principle of subtractive mixture of color stimuli of the colored electrophoretic particles present on the display electrodes. Three unit cells are adjacently disposed in a same plane to form a pixel, and combinations of colors of the two kinds of translucent colored electrophoretic particles in each of the three unit cells forming the pixel are respectively one of the three primary colors and a color which provides black by subtractive mixture with one of the three primary colors.
An electrophoretic display device comprising unit cells each containing i) two display electrodes and two collection electrodes, ii) a clear electrophoretic liquid and iii) two kinds of translucent colored electrophoretic particles having charge polarities different from each other, the unit cells being so constructed that the two display electrodes are disposed superimposingly as viewed from the observer side,
Dependencies are inferred from the claim text.