An object is to provide a display device that performs accurate display. A circuit is formed using a transistor that includes an oxide semiconductor and has a low off-state current. A precharge circuit or an inspection circuit is formed in addition to a pixel circuit. The off-state current is low because the oxide semiconductor is used. Thus, it is not likely that a signal or voltage is leaked in the precharge circuit or the inspection circuit to cause defective display. As a result, a display device that performs accurate display can be provided.

Disclosed in the present application are a non-volatile ferroelectric capacitor and a display driving circuit. The non-volatile ferroelectric capacitor comprises: a ferroelectric capacitor, which is formed on the surface of a substrate; and a first channel layer and a second channel layer, which are respectively formed on the surface of the substrate. The ferroelectric capacitor comprises a bottom electrode, a ferroelectric thin film and a top electrode, which are sequentially arranged in a stacked manner; the first channel layer is in contact with the bottom electrode; a dielectric material is formed on the surfaces of the ferroelectric capacitor, the first channel layer and the second channel layer; and a first gate electrode and a second gate electrode are formed on the surface of the dielectric material, such that the structure of the ferroelectric capacitor is obtained.

Embodiments of the present disclosure provide a pixel circuit and a method for driving the same and a display apparatus and a method for driving the same. The pixel circuit comprises an energy storage circuit, a driving circuit, a display circuit and a reset circuit, wherein the energy storage circuit is connected to a first scanning signal line, a data signal line and the driving circuit, and is configured to store a data signal input through the data signal line under control of the first scanning signal line, the driving circuit is connected to a second scanning signal line and the display circuit and is configured to drive the display circuit to display a picture under control of the second scanning signal line; the display circuit is connected to a second voltage terminal and is configured to display a picture under control of the driving circuit and the second voltage terminal; and the reset circuit is connected to a third scanning signal line, the data signal line and the display circuit, and is configured to set a reset signal input through the data signal line to the display circuit under control of the third scanning signal line to reset a voltage in the display circuit.

Pixels P arranged in a matrix shape have at least two sub-pixels defined by including an electrode pair of a sub-pixel electrode and a counter electrode facing each other through a liquid crystal layer. Regarding at least two sub-pixels included in the pixel P, a voltage difference between voltages applied to the liquid crystal layer through the electrode pair, a brightness difference or a luminance difference varies depending on an arrangement position of the pixel P in a row direction and/or column direction.

An object is to provide a display device that performs accurate display. A circuit is formed using a transistor that includes an oxide semiconductor and has a low off-state current. A precharge circuit or an inspection circuit is formed in addition to a pixel circuit. The off-state current is low because the oxide semiconductor is used. Thus, it is not likely that a signal or voltage is leaked in the precharge circuit or the inspection circuit to cause defective display. As a result, a display device that performs accurate display can be provided.

Systems, methods, and computer program products to perform an operation comprising determining a charge level of a battery of a mobile device, and responsive to determining that the charge level is below a minimum threshold, selecting a first data object from a plurality of data objects stored on the mobile device based on predefined criteria, outputting the first data object on a persistent display device of the mobile device, and powering off the mobile device, wherein the first data object remains visible on the persistent display after the mobile device powers off.

The present disclosure provides a pixel circuit, a method for driving the pixel circuit and a display panel including the pixel circuit. The pixel circuit comprises a data writing unit, a voltage tracking unit, a voltage storage unit and a liquid crystal capacitor. The data writing unit is constructed to transfer a data voltage on a data line to the voltage storage unit and the voltage tracking unit when the pixel circuit is in a normal display mode. The voltage storage unit is constructed to store the data voltage when the pixel circuit is in the normal display mode and transfer the data voltage or an adjustment voltage to the input terminal of the voltage tracking unit when the pixel circuit is in a static display mode. The voltage tracking unit is constructed to output a data output voltage based on the data voltage or the adjustment voltage, such that the liquid crystal capacitor generates a corresponding liquid crystal deflection field.

The present disclosure discloses a driving system of LCD, which includes: a timing control circuit is used to storage a data converted to gamma voltage; a data driving circuit for receiving the data converted to gamma voltage and the data converted to pixel gray reference voltage from the timing control circuit is used to convert the data converted to gamma voltage and the data converted to pixel gray reference voltage to a gamma voltage and a pixel gray reference voltage respectively and is used to obtain a pixel gray voltage by the converted gamma voltage gamma correct to the converted pixel gray reference voltage. The present disclosure further discloses a driving method and a device thereof. When the LCD device of the present disclosure is capable of performing gamma correction, the P-Gamma circuit will be omitted, greatly reducing the cost of production, so as to enhance the market competitiveness.

A target image can be analyzed determine a respective level of visual saliency for each of a plurality of information presented in the target image. At least a first sub-frame update for a display panel can be determined, the at least first sub-frame update providing at least a partial rendering of the target image on the display panel, the at least partial rendering of the target image providing the information presented in the target image that is determined to have a highest level of visual saliency from among the plurality of information. The at least first sub-frame update can be applied to the display panel.

A liquid crystal panel includes a first substrate, a second substrate spaced apart from the first substrate, and a liquid crystal layer between the first substrate and the second substrate. The second substrate includes an ITO layer facing toward the liquid crystal layer, the ITO layer comprises at least one first pixel electrode layer, at least one common electrode layer, and at least one second pixel electrode layer spaced apart from each other. A first voltage difference between the first pixel electrode layer and the common electrode layer is different from a second voltage difference between the second pixel electrode layer and the common electrode layer. In this way, the intensity of the horizontal electrical field above the common electrode layer is enhanced such that the transmission rate of the liquid crystal panel may be increased.