Field sequential driving method and field sequential liquid crystal display
OwnerTakeshi Okunoinventor
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Abstract
A field sequential LCD and a method of initializing a liquid crystal using the same are provided. A reset voltage having a higher voltage level than a data signal is applied to initialize the liquid crystal. Accordingly, the field sequential LCD includes a reset voltage generator to generate the reset voltage having a higher voltage level than the data signal. The reset voltage is applied to the liquid crystal according to a selection operation of the source driver.
Claims19
A method for driving a field sequential liquid crystal having three sub-frames, the method comprising:
- activating the three sub-frames in sequence, wherein each sub-frame activation comprising:
- applying a reset voltage having a first voltage level to initialize the liquid crystal;
- applying a data signal having a second voltage level that is lower than the first voltage level to the liquid crystal;
- and
- emitting light to the liquid crystal.
A field sequential liquid crystal display (LCD) comprising:
- a LCD panel for displaying an image;
- a gate driver for supplying a scan signal to the LCD panel;
- a source driver for supplying a data signal to the LCD panel during a data programming period, and supplying a reset voltage to the LCD panel during a reset period;
- a timing controller for receiving digital video data and synchronization signals, and generating a control signal and the data signal for displaying an image in response to the synchronization signal;
- a gradation voltage generator for receiving the data signal from the timing controller and supplying data modulated based on a lookup table to the source driver;
- a reset voltage generator for generating the reset voltage having a higher voltage level than the data signal in response to the control signal generated by the timing controller, and supplying the reset voltage to the source driver;
- a light source controller for generating a light control signal in response to the control signal generated by the timing controller;
- and
- a light emitter having a plurality of lamps for emitting light in response to the light control signal of the light source controller.
A method for driving a field sequential liquid crystal, the method comprising:
- initializing the liquid crystal by applying a reset signal to the liquid crystal;
- programming the liquid crystal by applying a data signal having a voltage level lower than voltage level of the reset signal to the liquid crystal and emitting light to the liquid crystal.
Dependencies are inferred from the claim text.