Each of pixels of a liquid crystal display device (100) exhibits, in a switched manner, a black display state where black display is provided in a state where a vertical electric field is generated in a liquid crystal layer (30), a white display state where white display is provided in a state where a lateral electric field is generated in the liquid crystal layer, and a transparent display state where a rear side of a liquid crystal display panel (1) is seen through in a state where no voltage is applied to the liquid crystal layer. A gray scale level group including gray scale levels from a lowest level to a highest level includes a white level corresponding to the white display state, a transparent level corresponding to the transparent display state and having a luminance higher than that of the white level, and a plurality of sub-transparent levels each having a luminance higher than that of the white level and lower than that of the transparent level.

A method of driving a display panel includes determining a present polarity of a pixel data signal of a present frame, generating a first compensated grayscale of the pixel data signal of the present frame using a pixel data signal of a previous frame, the pixel data signal of the present frame, and the present polarity, and displaying an image using the first compensated grayscale. The first compensated grayscale varies according to the present polarity.

A image display medium driving device includes a voltage application unit that applies a voltage between a pair of substrates, at least one of which is transparent, of an image display medium including plural types of particles which are sealed between the pair of substrates, are attached to the substrates, and start to be separated from the substrates at different times when a predetermined voltage is applied and a control unit that controls the voltage application unit such that a time when the voltage is applied between the pair of substrates varies depending on image information.

A liquid crystal display device includes a backlight, a first liquid crystal panel, a second liquid crystal panel, and a driver. The second liquid crystal panel is overlapped with the first liquid crystal panel, and disposed closer to the backlight than to the first liquid crystal panel. The driver is configured to drive the backlight, the first liquid crystal panel, and the second liquid crystal panel. The second liquid crystal panel is lower in resolution than the first liquid crystal panel. The driver drives the first liquid crystal panel and the second liquid crystal panel at different refresh rates.

A liquid crystal display panel includes multiple pixel units. At least one pixel unit includes first and second substrates, a scan line, data lines, first and second pixel structures, a shielding electrode layer, and a negative liquid crystal layer. The first pixel structure includes a first active device, a first pixel electrode, and a first common electrode. The second pixel structure includes a second active device, a second pixel electrode, and a second common electrode. The first common electrode and the second common electrode are provided with different voltages. One of the first pixel electrode and the first common electrode and one of the second pixel electrode and the second common electrode respectively include a frame and two strip electrodes. The frame has two sides, and two ends of each strip electrode are respectively connected to the two sides. The shielding electrode layer overlaps with the data lines.

A compensation method for a driving circuit of a display device includes generating a motion vector between a previous frame and a current frame subsequent to the previous frame; generating a first estimation frame according to the current frame and the motion vector; adjusting the first estimation frame according to the difference between the current frame and the first estimation frame, to generate a first overdrive frame; and inserting the first overdrive frame between the current frame and a next frame subsequent to the current frame.

A system, computer readable medium, and method for sub-frame scan-out are disclosed. The method includes the steps of dividing a frame into a plurality of slices. For each slice in the plurality of slices, the steps further include sampling a sensor associated with a head mounted display to generate sample data corresponding to the slice; adjusting one or more parameters associated with rendering operations for the slice based on the sample data; and rendering primitive data associated with a model according to the rendering operations to generate image data for the slice. Each slice is a portion of the frame and corresponds to different sample data from the sensor. Thus, adjusting of the parameters is different for each slice of the frame.

The present invention has a pixel which includes a first switch, a second switch, a third switch, a first resistor, a second resistor, a first liquid crystal element, and a second liquid crystal element. A pixel electrode of the first liquid crystal element is electrically connected to a signal line through the first switch. The pixel electrode of the first liquid crystal element is electrically connected to a pixel electrode of the second liquid crystal element through the second switch and the first resistor. The pixel electrode of the second liquid crystal element is electrically connected to a Cs line through the third switch and the second resistor. A common electrode of the first liquid crystal element is electrically connected to a common electrode of the second liquid crystal element.

A drive circuit has a ferroelectric liquid crystal panel that operates at a given switching angle and response speed, a sensor that measures temperature, a drive circuit that supplies driving voltage to the ferroelectric liquid crystal panel, a waveform generation circuit that supplies a waveform signal to the drive circuit, and a control circuit that controls the waveform generation circuit; and in a first frame of the driving voltage, outputs during a first interval, a first voltage that is positive and outputs during a second interval that is longer than the first interval, a second voltage that is positive, and in a second frame, outputs during the first interval, the first voltage that is negative and outputs during the second interval that is longer than the first interval, the second voltage that is negative. The control circuit varies the first voltage and the second voltage according to the measured temperature.

In a data line driver, successively input image data are sequentially stored in a first data storage unit and a second data storage unit. A subtracter calculates a difference value between the image data stored in the first data storage unit and the image data stored in the second data storage unit. A timing pulse generator generates a timing pulse based on the calculated difference value, and a charge supply circuit supplies a charge to a gradation voltage output terminal in accordance with the timing pulse. The rising and falling characteristics of gradation voltage when the image data is changed are improved in this way.