Abstract: A method and an apparatus for displaying an image on a display unit and controlling a backlight module which irradiates the display unit are disclosed. The method includes: processing the image signal and generating a driving signal to drive the display unit; displaying contents of the image signal; analyzing luminance values of the image signal to generate a luminance analysis result; and generating a control signal to control the backlight module according to the luminance analysis result.

Abstract: A liquid crystal display (LCD) control circuit is disclosed. The control circuit includes an edge detecting circuit for detecting image edges in each frame of an image data, and outputting an edge data and a non-edge data; a memory for saving the edge data of the frame; a driving decision circuit for generating a driving voltage setting according to the non-edge data of a current frame, and generating an overdriving voltage setting according to the edge data of a previous frame saved in the memory and the edge data of the current frame outputted by the edge detecting circuit; and an output device for outputting the driving voltage setting and the overdriving voltage setting.

Abstract: A method and an apparatus for displaying an image on a display unit and controlling a backlight module which irradiates the display unit are disclosed. The method includes: processing the image signal and generating a driving signal to drive the display unit; displaying contents of the image signal; analyzing luminance values of the image signal to generate a luminance analysis result; and generating a control signal to control the backlight module according to the luminance analysis result.

Abstract: A liquid crystal display (LCD) device and a driving method thereof are disclosed. In order to obtain high-quality images, a signal preprocessor is incorporated in the gray signal modulator of conventional LCDs. The signal preprocessor can be specifically designed as a noise-reduction preprocessor for suppressing the noise induced from the input gray signals, or designed for detecting a certain character of input gray signals for further processes. After be processed by the signal preprocessor, optimized modified gray signals can be obtained from the signal converter for driving the LCD, thereby producing high-quality images.

Abstract: A liquid crystal display (LCD) control circuit is disclosed. The control circuit includes an edge detecting circuit for detecting image edges in each frame of an image data, and outputting an edge data and a non-edge data; a memory for saving the edge data of the frame; a driving decision circuit for generating a driving voltage setting according to the non-edge data of a current frame, and generating an overdriving voltage setting according to the edge data of a previous frame saved in the memory and the edge data of the current frame outputted by the edge detecting circuit; and an output device for outputting the driving voltage setting and the overdriving voltage setting.

Abstract: A liquid crystal display (LCD) device and a driving method thereof are disclosed. In order to obtain high-quality images, a signal preprocessor is incorporated in the gray signal modulator of conventional LCDs. The signal preprocessor can be specifically designed as a noise-reduction preprocessor for suppressing the noise induced from the input gray signals, or designed for detecting a certain character of input gray signals for further processes. After be processed by the signal preprocessor, optimized modified gray signals can be obtained from the signal converter for driving the LCD, thereby producing high-quality images.

Abstract: An anti-theft device with a videotaping function capable of videotaping a theft's looks and providing the police evidence to make an arrest or deterring thievery is basically equipped with an image sensor for inputting the captured image into a main unit connected with a detecting unit for detecting unusual situation and externally connected with an alarm device, a telephone, an information service provider of an Internet service provider (ISP) or a wireless communication provider; the image sensor is disposed at the best position; once an intruder enters the detecting area, the detecting unit informs the main unit to send out alarm, videotapes the intruder with preset taping method and informs the related individual; thereby, the outsider not only can view the intruder's looks through the network, but also can use the recorded data as evidence to prove against the criminal and as reference for the police to make an arrest.