Abstract: A sense amplifier driving device, and more particularly, a technology for improving the post overdriving operation characteristic of a semiconductor device. A sense amplifier driving device includes a driving signal generation block configured to compare a reference voltage set by a voltage trimming signal and a level of a power supply voltage, and generate a pull-up driving signal for controlling an operation of a sense amplifier; and a sense amplifier driving block configured to supply a driving voltage to a pull-up power line of the sense amplifier for an active operation period in correspondence to the pull-up driving signal, the driving signal generation block including a voltage divider configured to divide the power supply voltage, and output a divided voltage; and a voltage comparison section configured to compare the reference voltage and the divided voltage, and output a control signal for controlling an overdriving operation of the sense amplifier.

Abstract: A liquid crystal display device is provided. The liquid crystal display device includes a first substrate and a pixel electrode disposed on the first substrate, the pixel electrode including a cross stem and a plurality of minute branches extending from the cross stem. The cross stem includes a horizontal stem and a vertical stem crossing the horizontal stem. The liquid crystal display device further includes a second substrate facing the first substrate, a common electrode disposed on the second substrate, and a liquid crystal layer including liquid crystal molecules interposed between the first substrate and the second substrate. Each of the minute branches includes a first side forming an angle of about 45° with the horizontal stem and a second side forming an angle of less than about 45° with the horizontal stem.

Abstract: A liquid crystal composition includes a first class including a first compound represented by Chemical Formula 1, wherein the first compound is 13 to 18 parts by weight based on 100 parts by weight of the total liquid crystal composition, and a second compound represented by Chemical Formula 2, wherein the second compound is 8 to 13 parts by weight based on 100 parts by weight of the total liquid crystal composition, a second class including a third compound represented by Chemical Formula 3. Chemical Formulas 1, 2, and 3 are represented by: and wherein R and R? are, independently of each other, a hydrogen atom, or an unsubstituted or substituted C1 to C7 alkyl group.

Abstract: A liquid crystal display (LCD) includes: a first pixel configured to emit first light having a first wavelength; a second pixel configured to emit second light having a second wavelength longer than the first wavelength; a third pixel configured to emit third light having a third wavelength longer than the second wavelength; and a liquid crystal (LC) panel in which driving voltages for maximum transmittances for the first light, the second light, and the third light are different from each other. The LCD is configured to apply different voltages to pixel electrodes of the first pixel, the second pixel, and the third pixel, respectively, such that the first light, the second light, and the third light respectively emitted by the first pixel, the second pixel, and the third pixel are transmitted at the respective maximum transmittances.

Abstract: A sense amplifier driving device, and more particularly, a technology for improving the post overdriving operation characteristic of a semiconductor device. A sense amplifier driving device includes a driving signal generation block configured to compare a reference voltage set by a voltage trimming signal and a level of a power supply voltage, and generate a pull-up driving signal for controlling an operation of a sense amplifier; and a sense amplifier driving block configured to supply a driving voltage to a pull-up power line of the sense amplifier for an active operation period in correspondence to the pull-up driving signal, the driving signal generation block including a voltage divider configured to divide the power supply voltage, and output a divided voltage; and a voltage comparison section configured to compare the reference voltage and the divided voltage, and output a control signal for controlling an overdriving operation of the sense amplifier.

Abstract: A sense amplifier driving device may include a sense amplifier driving block configured to supply a post overdriving voltage to a pull-up power line coupled to a sense amplifier, the post overdriving voltage supplied to the sense amplifier during a post overdriving operation period in correspondence to a pull-up driving signal. The sense amplifier driving device may include a driving signal generation block configured to compare a reference voltage, set by a voltage trimming signal, with a level of a power supply voltage, and generate the pull-up driving signal for controlling whether to perform a post overdriving operation.

Abstract: A sense amplifier driving device may include a sense amplifier driving block configured to supply a post overdriving voltage to a pull-up power line coupled to a sense amplifier, the post overdriving voltage supplied to the sense amplifier during a post overdriving operation period in correspondence to a pull-up driving signal. The sense amplifier driving device may include a driving signal generation block configured to compare a reference voltage, set by a voltage trimming signal, with a level of a power supply voltage, and generate the pull-up driving signal for controlling whether to perform a post overdriving operation.

Abstract: A liquid crystal composition includes a first class including a first compound represented by Chemical Formula 1, wherein the first compound is 13 to 18 parts by weight based on 100 parts by weight of the total liquid crystal composition, and a second compound represented by Chemical Formula 2, wherein the second compound is 8 to 13 parts by weight based on 100 parts by weight of the total liquid crystal composition, a second class including a third compound represented by Chemical Formula 3. Chemical Formulas 1, 2, and 3 are represented by: and wherein R and R? are, independently of each other, a hydrogen atom, or an unsubstituted or substituted C1 to C7 alkyl group.

Abstract: A display device including: a liquid crystal panel assembly including pixels; a data driver applying a data voltage to lines which is connected to the pixels; and a common voltage generator providing voltage to the liquid crystal panel assembly, in which the voltage is an optimal voltage for a maximum grayscale at which a flicker is minimized while a maximum grayscale is applied to the pixels, the data driver applies the data voltage with the minimum grayscale to the data lines so that a negative data voltage with a minimum grayscale is higher than the common voltage by a first voltage level or more, and each of the pixels includes a first subpixel and a second subpixel, and when the data voltage is applied to the pixel, a pixel voltage of the first subpixel and a pixel voltage of the second subpixel are different.

Abstract: A liquid crystal display (LCD) including a liquid crystal panel, and a gate driver which applies a gate signal having a driving frequency equal to or greater than 100 Hz to the liquid crystal panel. The liquid crystal panel comprises a first display panel, a second display panel facing the first display panel, and a liquid crystal composition disposed between the first display panel and the second display panel and includes liquid crystals.

Abstract: A liquid crystal display device is provided. The liquid crystal display device includes a first substrate and a pixel electrode disposed on the first substrate, the pixel electrode including a cross stem and a plurality of minute branches extending from the cross stem. The cross stem includes a horizontal stem and a vertical stem crossing the horizontal stem. The liquid crystal display device further includes a second substrate facing the first substrate, a common electrode disposed on the second substrate, and a liquid crystal layer including liquid crystal molecules interposed between the first substrate and the second substrate. Each of the minute branches includes a first side forming an angle of about 45° with the horizontal stem and a second side forming an angle of less than about 45° with the horizontal stem.

Abstract: A liquid crystal display includes: a first substrate, a plurality of pixel electrodes disposed on the first substrate and including a first subpixel electrode and a second subpixel electrode including a cross stem and a plurality of minute branches extending from the cross stem; a second substrate facing the first substrate; a first alignment layer disposed on the first substrate and the pixel electrode; a second alignment layer disposed on an inner surface of the second substrate; and a liquid crystal layer injected between the first substrate and the second substrate and including a prepolymer, a reaction initiator, and a polymerization reactor, of which a content of the reaction initiator is higher than a content of the polymerization reactor.

Abstract: A liquid crystal display device includes an array substrate, an opposite substrate and a liquid crystal display layer. The array substrate includes a pixel electrode and a lower reactive mesogen layer. The pixel electrode includes a plurality of slit portions disposed on a plurality of domains in different directions. The lower reactive mesogen layer is disposed on the pixel electrode to induce an inclined direction of liquid crystal molecules. The opposite substrate includes an upper substrate. An upper reactive mesogen layer is disposed on a common electrode of the opposite substrate. The liquid crystal layer includes liquid crystal molecules arranged to have a pretilt angle between a surface of the lower reactive mesogen layer and a surface of the upper reactive mesogen layer.

Abstract: An internal voltage generation circuit including a drive control signal generator and an internal voltage driver. The drive control signal generator generates a drive control signal in response to an active pulse signal and a drive signal. The internal voltage driver, electrically coupled to the drive control signal generator, divides a level of an internal voltage signal in response to the drive control signal to generate a division voltage signal, compares a level of the division voltage signal with a level of a reference voltage signal to generate the drive signal, and drives the internal voltage signal in response to the drive signal.

Abstract: A liquid crystal composition includes: a first category compound and a second category compound. The first category compound includes a first compound represented by Chemical Formula 1 and a second compound represented by Chemical Formula 2, where each R is independently an alkyl group having a carbon number of 1 to 7, and each R may be the same or different.

Abstract: A test circuit of a semiconductor apparatus includes a test temperature information generation section, an erroneous operation prevention unit, and a refresh cycle adjustment unit. The test temperature information generation section outputs test temperature information having a plurality of bits in a test operation mode, and irregularly changes logic values of the plurality of bits and transition time points of the logic values. The erroneous operation prevention unit generates a temperature compensation signal in response to the test temperature information. The refresh cycle adjustment unit changes a cycle of a reference refresh signal in response to the temperature compensation signal, and generates a refresh signal.

Abstract: A liquid crystal display includes: a first substrate, a plurality of pixel electrodes disposed on the first substrate and including a first subpixel electrode and a second subpixel electrode including a cross stem and a plurality of minute branches extending from the cross stem; a second substrate facing the first substrate; a first alignment layer disposed on the first substrate and the pixel electrode; a second alignment layer disposed on an inner surface of the second substrate; and a liquid crystal layer injected between the first substrate and the second substrate and including a prepolymer, a reaction initiator, and a polymerization reactor, of which a content of the reaction initiator is higher than a content of the polymerization reactor.

Abstract: An internal voltage generation circuit including a drive control signal generator and an internal voltage driver. The drive control signal generator generates a drive control signal in response to an active pulse signal and a drive signal. The internal voltage driver, electrically coupled to the drive control signal generator, divides a level of an internal voltage signal in response to the drive control signal to generate a division voltage signal, compares a level of the division voltage signal with a level of a reference voltage signal to generate the drive signal, and drives the internal voltage signal in response to the drive signal.

Abstract: A liquid crystal display device includes an array substrate, an opposite substrate and a liquid crystal display layer. The array substrate includes a pixel electrode and a lower reactive mesogen layer. The pixel electrode includes a plurality of slit portions disposed on a plurality of domains in different directions. The lower reactive mesogen layer is disposed on the pixel electrode to induce an inclined direction of liquid crystal molecules. The opposite substrate includes an upper substrate. An upper reactive mesogen layer is disposed on a common electrode of the opposite substrate. The liquid crystal layer includes liquid crystal molecules arranged to have a pretilt angle between a surface of the lower reactive mesogen layer and a surface of the upper reactive mesogen layer.

Abstract: A liquid crystal display device includes an array substrate, an opposite substrate and a liquid crystal display layer. The array substrate includes a pixel electrode and a lower reactive mesogen layer. The pixel electrode includes a plurality of slit portions disposed on a plurality of domains in different directions. The lower reactive mesogen layer is disposed on the pixel electrode to induce an inclined direction of liquid crystal molecules. The opposite substrate includes an upper substrate. An upper reactive mesogen layer is disposed on a common electrode of the opposite substrate. The liquid crystal layer includes liquid crystal molecules arranged to have a pretilt angle between a surface of the lower reactive mesogen layer and a surface of the upper reactive mesogen layer.