An object is to suppress deterioration of a displayed image even when a refresh rate is reduced in displaying a still image. A liquid crystal display device includes a pixel transistor electrically connected to a pixel electrode, and a capacitor having one electrode electrically connected to the pixel electrode and the other electrode electrically connected to a capacitor line. The pixel transistor is turned on and a voltage based on an image signal is supplied to the pixel electrode, and then, the pixel transistor is turned off so that a holding period during which the pixel electrode holds the voltage based on the image signal starts. A holding signal corresponding to change of the voltage based on the image signal in the pixel electrode in the holding period is supplied to the capacitor line so that a potential of the pixel electrode is constant.

A display panel and a display device are provided. The display panel includes a data driving unit provided a specific sequence of polarities and complementary high/low level for color shift compensation from a 1.sup.st terminal to a 16.sup.th terminal in each cycle unit to solve an issue of liquid crystal panel flicker, crosstalk, etc.

A timing control circuit is provided to control a data voltage outputted to a pixel array of a display panel during a frame period to perform a polarity reversal every N scan lines, where N is a positive integer. The timing control circuit includes a receiver and an adjustment circuit. The receiver is configured to sequentially receive first display data and second display data for one data line of the display panel. The adjustment circuit is coupled to the receiver to adjust at least one of gray information of the second display data and charging time of the second display data according to a voltage polarity of the first display data and a voltage polarity of the second display data. A corresponding operation method of the timing control circuit is also provided.

An electronic device and a method of controlling a temperature in an electronic device are provided. The method includes measuring a temperature of at least one part of the electronic device, determining an algorithm corresponding to the measured temperature of the at least one part, and displaying an image based on the determined algorithm.

A liquid crystal display includes: a display panel; a signal controller configured to receive an input image signal and an input control signal, output an output image signal and an output control signal, and determine a charge sharing between two or more data lines having voltages in the same polarity; and a data driver configured to convert, based on the output control signal, the image signal into data voltages to be supplied to the data lines connected to the pixels, the data voltages having positive levels and negative levels. The data driver is further configured to perform a first charge sharing by short-circuiting first and second data lines that are adjacent to each other, and a second charge sharing by short-circuiting third and fourth data lines having data voltages in the same polarity, wherein the first charge sharing and the second charge sharing may not temporally overlap with each other.

A display apparatus includes a latch circuit configured to generate a second data value from a first data value, wherein the bit count of the second data value is greater than the bit count of the first data value, a digital-analog converter configured to convert the second data value into gray scale voltages, an output buffer unit configured to amplify the current level of the gray scale voltages to generate data voltages, a data switch circuit configured to invert the polarity of the data voltages every frame, and a display panel including a plurality of pixels driven with the data voltages supplied from the data switch circuit in response to sequential application of gate signals.

A display apparatus includes a display panel and a driving circuit. The display panel includes pixels. Each of the pixels is connected to one of gate lines and one of data lines. The driving circuit drives the gate lines and the data lines to display an image on the display panel. The driving circuit alternately provides a first polarity data driving signal and a second polarity data driving signal to each of the plurality of data lines. During an asymmetrical mode, the first polarity data driving signal is provided to first data lines of the data lines during a first frame period before a blank period begins, and the second polarity data driving signal is provided to the first data lines during a second frame period after the blank period ends. The second frame period excludes the blank period.

A three-dimensional-image display device includes a display unit, a variable focus lens unit, and a controller. The display unit sequentially displays a first image displayed by a first image signal and a second image displayed by a second image signal, and that projects a display light of the first image and a display light of the second image. The variable focus lens unit switches the focal lengths for the display lights to respectively form, as virtual images, the first image and the second image on a first display surface and a second display surface. The controller controls, on the basis of a start timing at which writing, of an image signal of a different image, to pixels of the display unit starts, a projecting timing at which the display unit projects the display light of the first image and the display light of the second image.

Provided is a display device and the like, in which power consumption is reduced in consideration of increased definition of a display image or an increased size of a display panel. In a liquid crystal display device having a power-saving mode in addition to a normal mode, buffers for outputting data signals from a source driver (300) to source lines are made up of positive-polarity buffers (333p) and negative-polarity buffers (333n), and a connection switching circuit 334 is provided between output ends of these buffers and the source driver (300). In the power-saving mode, the buffers (333p, 333n) are connected to source lines by the connection switching circuit (334), while the polarities of the buffers are taken into account, such that the same data signals are applied to two mutually adjacent source lines. Accordingly, although horizontal resolution is halved, half of the buffers in the source driver (300) are halted, thereby enabling great reduction in power consumption.

According to one embodiment, a display device includes a first substrate, a second substrate, a liquid crystal layer, a first alignment film, a pixel electrode, and a common electrode. The liquid crystal layer is disposed between the first substrate and the second substrate. The first alignment film is provided on the first substrate to be in contact with the liquid crystal layer. The pixel electrode is provided on the first substrate and covered with the first alignment film. The common electrode provided on the first substrate to form a lateral electric field. The liquid crystal layer is driven at a frequency of 40 Hz or less. A time constant of the liquid crystal layer is larger than a time constant of the first alignment film.