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US 2002/0158831 A1Published application
Antiferroelectric liquid crystal display
AssigneeCitizen Watch Co., Ltd.
InventorShinya Kondoh
Life of this patent
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AssigneeCitizen Watch Co., Ltd.
InventorShinya Kondoh
Estimating the term…
An antiferroelectric liquid crystal display, which is equipped with an antiferroelectric liquid crystal panel having an antiferroelectric liquid crystal sandwiched between a pair of substrates, performs at least one scanning period when carrying out a display based on one set of display data, wherein the scanning period comprises a selection period for determining the state of the antiferroelectric liquid crystal, a non-selection period for holding the state determined in the selection period, and a reset period for resetting pixels to a black display state before initiating the selection period. The length of the reset period is adjusted according to the speed of change in the display data. Alternatively, the pixels are reset to a white display state in the reset period and, during that period, the backlight is turned off.
An antiferroelectric liquid crystal display equipped with an antiferroelectric liquid crystal panel having an antiferroelectric liquid crystal sandwiched between a pair of substrates, wherein the antiferroelectric liquid crystal display is provided with at least one scanning period when carrying out a display based on one set of display data, and the scanning period comprises a selection period for determining the state of the antiferroelectric liquid crystal, a non-selection period for holding the state determined in the selection period, and a reset period for resetting pixels to a black display state before initiating the selection period, and wherein the antiferroelectric liquid crystal display includes a device for adjusting the length of the reset period according to the speed of change in the display data.
An antiferroelectric liquid crystal display equipped with a backlight and an antiferroelectric liquid crystal panel having an antiferroelectric liquid crystal sandwiched between a pair of substrates, wherein the antiferroelectric liquid crystal display is provided with at least one scanning period when carrying out a display based on one set of display data, and the scanning period comprises a selection period for determining the state of the antiferroelectric liquid crystal, a non-selection period for holding the state determined in the selection period, and a reset period for resetting all pixels simultaneously to a white display state before initiating the selection period, and wherein the backlight is turned off during the reset period.
Dependencies are inferred from the claim text.