A display device includes a display panel on which a plurality of sub-pixels are disposed; a timing controller configured to transmit an image control signal to a host system to receive image data from the host system; a data driving circuit configured to convert the image data transmitted from the timing controller into a data voltage and configured to supply the data voltage to the display panel; and a semi-off switching circuit configured to control the image control signal so that the image data is cut off from the host system during a semi-off period of a predetermined time from a time when an off monitoring signal is transmitted from the host system in response to the power off signal.

A display device includes a display panel including a plurality of pixels, a gate driver which provides a gate signal to corresponding pixels of the plurality of pixels, a data driver which provides a data voltage to the corresponding pixels of the plurality of pixels, a power voltage generator which provides a pixel power voltage to each of the plurality of pixels, and provides a gate power voltage to the gate driver, and a controller which provides a gate control signal to the gate driver. The pixel power voltage, the data voltage, and the gate control signal sequentially have a ground voltage level in response to a power-off signal.

A display device is described including a display panel for displaying an image and an input sensing unit disposed on the display panel for sensing a user input. The input sensing unit includes: an electrode unit including first electrodes and second electrodes which intersect each other and a control unit for determining the proximity of an object or the shape of the object, based on capacitance change values of the first electrodes and the second electrodes. In a first mode the input sensing unit is driven using a self-capacitance method. The control unit may merge the capacitance change values, and determine the proximity of the object based on the merged value. In a second mode based on mutual capacitance, the control unit may determine the shape of the object.

Provided is a display device that has a usage validity period and confirms that the device is within the usage validity period when it is used, and can be improved in usefulness and can be used quickly, as well as a usage management method and program for the display device. The display device includes: a real-time clock; and, a control unit that, upon receiving a video display-ON signal for turning on video display under the condition that the status of the real-time clock is invalid, displays video corresponding to an input video signal.

We describe a method of reducing artefacts in an image displayed by an active matrix electro-optic display and display driver, the electro-optic display driver comprising a plurality of active matrix pixel drivers each driving a respective pixel of the electro-optic display, each active matrix pixel driver having an associated storage capacitor coupled to a common backplane connection of the display driver, pixels of the electro-optic display having a common pixel electrode, the method comprising: driving the electro-optic display with a null frame during a power-down procedure of the display.

A method and apparatus for controlling embedded raw image data within a display having internal memory. The method includes sending a frame of code and a final compilation of raw image data to the internal memory of the display from a primary host processor prior to the primary host processor entering a sleep state. When the primary host processor has entered a sleep state, control of the raw image data is redirected to at least one secondary host processor. The secondary host processor reads the frame of code within the internal memory of the display and instructs the display to perform an image-related behavior output that may include updating the display itself based on the frame of code found in the internal memory of the display.

A display device capable of discharging residual charges includes a discharging circuitry to discharge charges remaining in a GIP driver, a Gate D-IC, a Source D-IC, a Gamma IC, etc. to a ground GND when a display panel is powered off, so that the display device protects the display panel by rapidly discharging residual charges that may accumulate on the display panel and a printed circuit board when power is off.

A display apparatus includes a first compensator, a second compensator and a display panel including pixels. The first compensator generates a first compensation coefficient based on sensing data of a pixel of the pixels for a first grayscale value, generates a second compensation coefficient based on camera imaging data for a second grayscale value greater than the first grayscale value and compensates image data based on the first compensation coefficient and the second compensation coefficient. The second compensator compensates the image data by modeling sensing data of entire grayscale range based on sensing data of the pixel for a third grayscale value and a fourth grayscale value. The display panel displays an image based on the image data compensated by the first compensator and the second compensator.

A display device having a display, a device interface to permit communication with an external device using at least one wireless communication protocol, a network interface for coupling to a network and a controller. The controller is configured to: cause the display to display data mirroring data displayed on an external device; receive a request for playback of content, wherein the request for playback of the content is received from the external device via the device interface; obtain the content from a storage unit when the content is non-streaming content; obtain the content from a source, via the network interface, when the content is streaming content; cause the display to display the content obtained from either the storage unit or the source; and transmit, via the device interface, a first message to the external device to cause the external device to enter a standby mode.

A display device includes a display panel including a plurality of data lines, a plurality of pixel circuits, and a common electrode and a data line drive circuit including a plurality of data output terminals each configured to output a voltage to be applied to each of the plurality of data lines and configured to short all the plurality of data output terminals when receiving the power supply off instruction. The plurality of data output terminals are classified into use terminals electrically connected to the plurality of data lines and unused terminals not electrically connected to the plurality of data lines. At least some of the unused terminals are electrically connected to either the ground or the common electrode.