An image display device of the present invention comprises a display and a power supply unit, and the power supply unit comprises: a first voltage detection unit that detects an input AC voltage by using a first resistance element; a second voltage detection unit that detects an input AC voltage by using a differential circuit having a capacitor element and a second resistance element; a converter that converts the level of the input voltage on the basis of a switching operation of a switching element so as to output a DC voltage; and a control unit that may control the switching element in the converter to be turned on, on the basis of a first signal detected by the first voltage detection unit or a second signal detected by the second voltage detection unit. As such, the present invention operates stably even when an AC voltage of a square wave is applied.

Techniques are disclosed for systems and methods to provide dynamic display systems for mobile structures. A dynamic marine display system includes a user interface comprising a primary display and secondary display, where the secondary display is disposed along and physically separate from an edge of the primary display, and where the secondary display comprises a touch screen display configured to render pixelated display views and receive user input as one or more user touches and/or gestures applied to a display surface of the secondary display. A logic device is configured to receive user selection of an operational mode associated with the user interface and/or the mobile structure and render a primary display view via the primary display and/or a secondary display view via the secondary display corresponding to the received user selection and/or operational mode.

A display control device includes a first display capable of color display, a first controller performing reset control of the first display, and a second controller having less throughput than the first controller. The first controller executes reset control on the first display in a case of a first operation mode in which the first controller is active. The second controller executes reset control on the first display in a case of a second operation mode in which the first controller is inactive or in a case of detection of the first controller not operating normally.

Disclosed are an image display device and a motion detection method of an image display device. The image display device includes a motion detection unit for detecting a motion of a user and provides a welcome feedback to the user in the form of a visual signal, an audio signal, or both according to whether the motion of the user is detected or not, thereby drawing attention of the user or switching a display state to reduce power consumption of the image display device. The image display device determines a motion exception event that is not regarded a user motion on the basis of an overall change or a local change in pixel value between image frames, thereby preventing the display panel from being activated by a non-human-related factor such as a sudden change in illuminance or a movement of a periodically operating object.

A display device includes a control circuit and a driving circuit driving a display panel to display an image. In response to determining that the driving circuit is to be switched from a running state to a standby state, the control circuit stops supplying power to the driving circuit. In response to determining that the driving circuit is to be switched from the standby state to the running state, the control circuit resumes the power supply to the driving circuit, and transmits a target reset signal to the driving circuit. The target reset signal is the same as a reset signal sent by a host computer to the driving circuit in response to a coupling being established between the driving circuit and the host computer.

A host controller in a display apparatus incudes a group determiner that determines an application as a determination factor, a drive setter that identifies a set that includes an upper-limit refresh rate, a lower-limit refresh rate, and a duty ratio of light emission and is set in response to the determination factor, and a drive controller that controls driving of the display apparatus in accordance with the identified set.

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.

An apparatus comprising a pump configured to deliver insulin, a processor, and a user interface including a color display. Color on the display can be used to bring a user's attention to a change in status of the device or a detected change in status of the patient.

A screen saver controller including a load calculator configured to generate load data of an image represented by input image data, a maximum gray level calculator configured to generate maximum gray level data of the image represented by the input image data, and a screen saver data generator configured to determine a gain of a screen saver mode based on the load data and the maximum gray level data when the screen saver mode is operated and to generate screen saver data based on the input image data and the gain.

A light emitting display (LED) device can include a display panel configured to display an image; and a data driver including a panel driving circuit configured to drive the display panel and a panel sensing circuit configured to sense a condition of the display panel, in which the panel driving circuit includes a first data voltage output circuit to output a voltage to both of a first data line and a first reference line of the display panel to display black on a first sub-pixel included in the display panel.