Patent application number | Description | Published |
20090189880 | SOURCE DRIVING CIRCUIT - A source driving circuit is provided. The source driving circuit includes a plurality of source drivers, first switches, and second switches. Each transmission line of each source driver is coupled to the first switch and the second switch. In a first period, the first switches are turned on, and the source drivers generate a first driving signal to drive pixels in odd columns of a display panel through the transmission lines and the first switches. In a second period, the second switches are turned on, and the source drivers generate a second driving signal to drive pixels in even columns of the display panel through the transmission lines and the second switches. Therefore, the problem of the prior art that each transmission line of the source driver drives pixels in only one column of the display panel is improved and the hardware cost is greatly decreased. | 07-30-2009 |
20100001945 | DRIVING METHOD OF LIQUID CRYSTAL DISPLAY - A driving method of an LCD includes: dividing a display panel into a plurality of scanning blocks, each scanning block including a plurality of display regions; selecting one of the scanning blocks as a target scanning block, wherein each display region of the target scanning block corresponds to at least one backlight source; and selecting one of the display regions of the target scanning block as a target display region, detecting a gray value of an image of the target display region, and adjusting a luminance of a target backlight source corresponding to the target display region according to the gray value of the image. | 01-07-2010 |
20100053494 | LIQUID CRYSTAL DISPLAY DEVICE - A LCD device includes an illumination device generating heat, a side frame including a recess for fixing the illumination device, a LCD panel fixed to the side frame and a resilient heat-conductive element accommodated in the recess and contacting the illumination device and the LCD panel. | 03-04-2010 |
20100164849 | Liquid Crystal Display Device for Improving Color Washout Effect - A liquid crystal display device for improving color washout problem is disclosed in the present invention, in which storage capacitors of two sub-pixels of a pixel are electrically connected to a next scan line and a next scan line of the next scan line, respectively, in order for utilizing driving signals of the two scan lines to modulate voltages of the storage capacitors, so as to make the two sub-pixels have different driving voltages. | 07-01-2010 |
20100176656 | Independent power supply module for LCD - A power supply module for an LCD includes a system power supply module and a backlight power supply module. The system power supply module is used to drive a display panel module of the LCD. The backlight power supply module utilizes a power factor correction device to convert an input AC voltage to a DC voltage, and then utilizes a DC/AC inverter to convert the DC voltage to an AC driving voltage to drive the backlight module. The power supply module is also applicable to a plurality of LCDs. | 07-15-2010 |
20120019154 | DRIVING CIRCUIT FOR DRIVING LIGHT EMITTING DIODES AND DIMMER - A power supply unit provides a voltage, and a driving current to a series of light emitting diodes. A dimming unit adjusts a duty cycle of an original dimming signal to generate a dimming signal according to the driving current and an ideal current. A current sink coupled to the series of light emitting diodes adjusts a duty cycle of the driving current according to the dimming signal. | 01-26-2012 |
20120019155 | METHOD OF DIMMING - A power supply unit provides a voltage, and a driving current to a series of light emitting diodes. A dimming unit adjusts a duty cycle of an original dimming signal to generate a dimming signal according to the driving current and an ideal current. A current sink coupled to the series of light emitting diodes adjusts a duty cycle of the driving current according to the dimming signal. | 01-26-2012 |
Patent application number | Description | Published |
20090059334 | PROJECTION SYSTEM AND PORTABLE ELECTRONIC DEVICE USING SAME - A projection system ( | 03-05-2009 |
20100026908 | PROJECTOR CAPABLE OF DISPLAYING INFORMATION VIA PROJECTION SCREEN OR EXTERNAL DISPLAY AND DISPLAYING METHOD THEREOF - A displaying method of a projector is disclosed. The projector includes an A/V processor, an output connector, and a detector. The A/V processor is configured for reading A/V data from a data source and processing the A/V data to output corresponding A/V signals. The output connector is configured for outputting the A/V signals to an external display. The output connector includes a pin which outputs synchronization frames of the A/V signals when the output connector is not connected to the external display. The displaying method includes: powering on and initializing the projector; and detecting synchronization frames of the output A/V signals from the pin, if yes, powering on the light source, if no, powering off the light source. | 02-04-2010 |
20100110391 | PROJECTOR - A projector includes at least one light source module, an optical system, an imaging unit, and a projection lens. Each light source module includes a lamp unit and a heat-dissipating module in close contacting with the lamp unit. Each of the at least one light source module is positioned at one end of the optical system. The imaging unit is positioned at the other end of the optical system. The projection lens is positioned at the same end of the optical system with the imaging unit. Each lamp unit can be adjusted along a first direction relative to the heat-dissipating module, each light source module can be adjusted along a second direction relative to the optical system, the first direction and the second direction both perpendicular to the light emitting direction of the corresponding lamp unit. | 05-06-2010 |