Abstract: The present invention discloses a method for driving a light emitting diode according to a required luminance, wherein an actual luminance of the light emitting diode decays with time and a correlation there between is represented by a life-time curve. The method comprises the following steps. First, the driving current is correlated with the required luminance by an initial coefficient is provided to the light emitting diode. Next, a length of a period of use of the light emitting diode is counted. Then, a slope of the life-time curve corresponding to the required luminance is stored. Finally, a new coefficient from the length of the period of use, the slope of the life-time curve and the initial coefficient is derived.

Abstract: One embodiment of the present invention sets forth a wireless receiver device, which includes a receiver front-end configured to convert a transmitted radio-frequency signal into an intermediate signal and a backend processing unit coupled to the receiver front-end through a differential-type signaling interface and also configured to recover content from the intermediate signal from the receiver front-end.

Abstract: An apparatus and a method for dynamic backlight-control in an electronic device are provided. The apparatus includes a battery power-level detection unit and a controlling unit. The battery power-level detection unit is used for detecting the power level of a battery in the electronic device. The controlling unit is coupled to a backlight unit of a display device in the electronic device and the battery power-level detection unit for adjusting the illumination of the backlight unit according to the power level of the battery and an image-content lightness of an image inputted into the display device.

Abstract: An ambient light system for a display device is provided. The ambient light system comprises a number of ambient light sources, a video ambient decision unit, an audio level detector, a pattern generator and an ambient light controller. The ambient light sources surround the display device. The video ambient decision unit is for generating a number of display parameters based on the displaying colors and the intensities of the pixels, which are neighboring the ambient light sources, of the display device. The audio level detector is for detecting an input audio signal, which is inputted into the display device, to obtain a detected level. The pattern generator is for generating an ambient light pattern based on the detected level. The ambient light controller is for controlling the ambient light sources to generate ambient light based on the ambient light pattern and the display parameters.

Abstract: A wafer, a test system thereof, a test method thereof and a test device thereof are provided. The present invention utilizes a first group of probes to perform a high voltage stress (HVS) test on a first chip, and utilizes a second group of probes to perform a function test on a second chip, where a period of the high voltage stress test overlaps a period of the function test, thereby greatly decreasing the test time of the wafer.

Abstract: A liquid crystal display (LCD) includes a controller, a source driver, first and second data lines and a data transmission path. The controller outputs first and second image data, and the source driver receives and outputs the first and second image data. The source driver includes first and second data channel circuits and a first repair channel circuit. The first and second data channel circuits respectively output first and second sub-pixel data. The first repair channel circuit is coupled to the controller to receive first repairing data. The first and second data lines are respectively coupled to the first and second data channel circuits to receive the first and second sub-pixel data. The data transmission path includes a redundant line, which is for coupling the first repair channel circuit to one of the first and second data lines, and interlaces with the first and second data lines.

Abstract: A display device comprises a processor for receiving an image signal and generating a data signal and a luminance signal accordingly, a display panel comprising display cells, a data driver generating driving signals according to the data signal for driving the display cells, and a backlight module comprising light emitting elements, each light emitting element being arranged to correspond to each display cell respectively for emitting light to each display cell according to the luminance signal.

Abstract: A display apparatus has several light emitting elements and several lenses. The light emitting elements generate light of a first and second part of a frame respectively during a first and second period. The lenses pass through by the light from the light emitting elements, and operate to form images of the first and second part of the frame at a first and second location during the first and second period, respectively.

Abstract: An output device for outputting an output signal. The output device comprises an amplifying unit and a control unit. The amplifying unit has a first input terminal, a second input terminal, and an output terminal outputting the output signal, wherein the amplifying unit is configured with a feedback loop. The control unit configures in the feedback loop and controlled by a control signal. The control unit turns off the feedback according to the control signal for a first period, and the control unit turns on the feedback according to the control signal after the first period.

Abstract: A high-voltage metal-oxide-semiconductor (HV MOS) transistor is provided to form the decoder in a source driver of a display apparatus for substantially saving the layout area. The HV MOS transistor includes two doped regions with a first conductivity type disposed in a semiconductor substrate, and a gate region having a second conductivity type opposite to the first conductivity type on the semiconductor substrate and between the doped regions. Accordingly, the layout area could be substantially reduced.

Abstract: A gamma correction apparatus for a liquid crystal display comprises a reference voltage generating circuit and a gamma correction circuit. The reference voltage generating circuit outputs a plurality of reference voltages according to the pixel data. The gamma correction circuit gamma-corrects the pixel data according to the reference voltages. The feature of the invention resides in that the reference voltage generating circuit outputs the corresponding reference voltages to gamma-correct the pixel data according to the positions of the pixels corresponding to the pixel data in the LCD monitor and the display colors of the pixels.

Abstract: A display and a two step driving method thereof are provided. The method includes: converting an image signal to a corresponding data driving voltage by using a driver; providing a pre-driving voltage by using a voltage generator; and finally, driving the display panel by using the pre-driving voltage and data driving voltage orderly during a horizontal synchronizing period. A display includes a display panel, a voltage generator, and a driver. The display panel also includes at least one data line. The voltage generator outputs a pre-driving voltage to the data line of the display. The driver outputs a data driving voltage to the data line according to an image signal, in which the data line receives the pre-driving voltage and the data driving voltage orderly during the horizontal synchronizing period.

Abstract: A multi-channel receiver, digital edge tuning circuit and a method for operating the same is disclosed. The digital edge tuning circuit for tuning phases of an input signal and a clock signal, comprises a delay-tuning circuit for receiving the input signal and delaying the input signal to generate a fine-tuned signal; a delay set comprising a plurality of delays connected serially one by one, the input of the delay set coupled to the fine-tune circuit, for receiving the fine-tuned signal; a plurality of sample/hold circuits, each of the sample/hold circuits coupled to a corresponding output of one of the delays and the fine-tune circuit, for sampling and holding the corresponding output; and a dynamic edge tuning circuit, coupled to the sample/hold circuits, for controlling a common delay time delayed by the delay-tuning circuit according to which one of the sample/hold circuits samples a data edge of the input signal.

Abstract: A voltage level shift circuit is provided. The circuit includes an input buffer unit, a level shift unit and a voltage stabilizing capacitor. The input buffer is coupled between a first voltage source and a first ground terminal. The level shift unit is coupled between a second voltage source and a second ground terminal. An input terminal of the level shift unit is coupled to an output terminal of the input buffer unit. The voltage stabilizing capacitor is coupled between the first voltage source and the second ground terminal. When a state transition occurs in the level shift unit, the voltage stabilizing capacitor maintains a voltage difference between the output terminal of the input buffer unit and the second ground terminal.

Abstract: A method for detecting whether or not a display mode has to be switched and for detecting a frame of a liquid crystal display panel. The frame has M vertical blocks each including K display lines each having N horizontal blocks each being composed of multiple display units. First, a horizontal block flag value of each horizontal block is obtained according to energy levels of all of the display units of the horizontal block. Then, a display line flag value of each display line is obtained according to horizontal block flag values of all of the horizontal blocks of the display line. Next, M vertical block flag values are obtained according to the display line flag values of all of the display lines in each vertical block. Then, it is determined whether or not the display mode has to be switched according to the M vertical block flag values.

Abstract: The present invention provides a LCOS display. The display comprises a first PCB, an interface module, a first silicon chip, and a flat cable. The interface module is disposed on the first PCB and used to receive an audio and video signal. The first silicon chip comprises a display area, a processing area, and a metal layer. The display area comprises a pixel array in a LCOS panel formed on the first silicon chip. The processing area comprises a processing unit formed on the first silicon chip. The metal layer is formed on the first silicon chip for electrically connecting the display area with the processing area. The flat cable is used to electrically connect the interface module with the processing unit.

Abstract: An ambient light system applied in a TV including a display panel, a loudspeaker and a plurality of ambient light sources includes an audio level detector, a pattern generator, and an ambient light controller. The audio level detector detects the level of an input audio signal to obtain a detected level. The pattern generator generates an ambient light pattern based on the detected level by reference to a selected operation mode. The ambient light controller controls the intensity of one or more ambient light sources based on the ambient light pattern.

Abstract: A driving device for driving a flat panel display apparatus is disclosed. The driving device includes a first driving unit, a second driving unit, a third driving unit, wherein the second driving unit is deposited between the first driving unit and the third driving unit, and a fourth driving unit, wherein the third driving unit is deposited between the second driving unit and the fourth driving unit. The driving device also includes a first switch circuit coupled between an output terminal of the first driving unit and an output terminal of the third driving unit, and a second switch circuit coupled between an output terminal of the second driving unit and an output terminal of the fourth driving unit.

Abstract: A common voltage adjustment apparatus for adjusting a common voltage of a liquid crystal display (LCD) panel includes a data-read-write circuit and an output circuit. The data-read-write circuit includes a one-time-programmable (OTP) memory module and a control interface unit. The OTP memory module includes several OTP memories. The control interface unit outputs common-voltage-setting data according to a control signal and selectively stores the common-voltage-setting data into an unwritten OTP memory in the OTP memory module. The output circuit includes a reference-voltage generator and a digital-to-analog converter (DAC). The reference-voltage generator generates a reference voltage. The DAC converts the common-voltage-setting data into an output voltage according to the reference voltage.

Abstract: A level shift circuit is used to receive a low-voltage signal to generate a corresponding high-voltage signal. The circuit has a first transistor of a first type, a second transistor of a second type, a third transistor of the second type and a fourth transistor of the second type. The first transistor has a gate receiving the low-voltage signal and a source receiving a first supply voltage. The second transistor has a source receiving a second supply voltage and a drain coupled to a drain of the first transistor. The third transistor has a source receiving the second supply voltage, a drain outputting the high-voltage signal and a gate coupled to a gate of the second transistor. The fourth transistor has a source and a gate commonly coupled to receive a third supply voltage, and a drain coupled to the drain of the third transistor.