Circuit for controlling color sequential liquid crystal display and method for controlling the same
First Claim
1. A circuit for controlling a color sequential liquid crystal display (LCD), comprising:
- a light-source driving circuit, producing a driving signal and transmitting to the color sequential LCD for controlling the color sequential LCD to produce backlights with different colors;
a data driving circuit, producing a data signal and transmitting to the color sequential LCD, and the data signal including a plurality of data pulses; and
a scan driving circuit, producing a scan signal and transmitting to the color sequential LCD, and the scan signal including a plurality of scan pulses corresponding to the plurality of data pulses, respectively;
wherein the color sequential LCD displays an image according to the voltage amplitude differences between the pluralities of scan pulses and data pulses and according to the backlights, and the voltage amplitudes of the pluralities of data pulses and scan pulses are changed according to different images.
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Abstract
The present invention provides a circuit for controlling a color sequential liquid crystal display (LCD) and a method for controlling the same. The control circuit comprises a light-source driving circuit, a data driving circuit, and a scan driving circuit. The light-source driving circuit produces a driving signal for controlling the color sequential LCD to produce backlight with different colors. The data driving circuit produces a data signal and includes a plurality of data pulses. The scan driving signal produces a scan signal and includes a plurality of scan pulses corresponding to the plurality of data pulses, respectively. By controlling the pluralities of data pulses and scan pulses and the backlight, the color sequential LCD will display an image. The voltage levels of the pluralities of data pulses and scan pulses change according to different images. Thereby, power consumed by the control circuit can be reduced. In addition, color-mixing problems will be reduced according to the present invention.
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Citations
18 Claims
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1. A circuit for controlling a color sequential liquid crystal display (LCD), comprising:
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a light-source driving circuit, producing a driving signal and transmitting to the color sequential LCD for controlling the color sequential LCD to produce backlights with different colors; a data driving circuit, producing a data signal and transmitting to the color sequential LCD, and the data signal including a plurality of data pulses; and a scan driving circuit, producing a scan signal and transmitting to the color sequential LCD, and the scan signal including a plurality of scan pulses corresponding to the plurality of data pulses, respectively; wherein the color sequential LCD displays an image according to the voltage amplitude differences between the pluralities of scan pulses and data pulses and according to the backlights, and the voltage amplitudes of the pluralities of data pulses and scan pulses are changed according to different images. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for controlling a color sequential liquid crystal display (LCD), comprising the steps of:
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producing a driving signal and transmitting to the color sequential LCD, for controlling the color sequential LCD to produce backlights with different colors; producing a data signal and transmitting to the color sequential LCD, the data signal including a plurality of data pulses; and producing a scan signal and transmitting to the color sequential LCD, the scan signal including a plurality of scan pulses corresponding to the plurality of data pulses, respectively; wherein the color sequential LCD displays an image according to the voltage amplitude differences between the pluralities of scan pulses and data pulses and according to the backlights, and the voltage amplitudes of the pluralities of data pulses and scan pulses are changed according to different images. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification