A computer implemented method for energy or resource management of a human-machine interface comprises the following steps carried out by computer hardware components of the human-machine interface: determining a level of attention of a user of the human-machine interface to the human-machine interface; and setting an energy and/or resource utilization related setting of the human-machine interface based on the determined level of attention.

A light source apparatus includes a plurality of light source gate lines extending in a first direction, a plurality of light source data lines extending in a second direction crossing the first direction, a plurality of light source emission lines, a plurality of feedback lines and a plurality of light source blocks. At least one of the light source blocks is connected to the light source gate line, the light source data line, the light source emission line and the feedback line.

An electronic shelf label, which comprises: a display unit, which is designed for displaying image content, and a communication module, which is designed for wireless communication for the purpose of receiving image data, which represent the image content, and for transferring the image data to the display unit,
characterized in that a detector unit is provided, which is designed for detecting an incorrect positioning, which differs from a desired positioning, of the electronic shelf label, and for outputting an action signal when the incorrect positioning is detected, and in that the electronic shelf label is designed to change the image content when the action signal is present.

An attendance tracking device for keeping a restroom cleaning log includes a radio-frequency, RF, module that periodically sends beacon signals and receives at least one response signal from a mobile device of a user. The tracking device further includes an electrophoretic display having a display controller and memory. The display controller executes a method that includes causing the RF module to periodically send beacon signals, detecting a received response signal from the mobile device, creating an attendance log including time stamp information regarding the presence of the mobile device, and triggering an update of the electrophoretic display to display the attendance log. A mobile device can be adapted to implement or be used in connection with the attendance tracking device. A system includes the attendance tracking device and the mobile device. Methods for operating the attendance tracking device and the mobile device are used to implement attendance tracking.

A display panel is provided. The display panel includes a pixel array, multiple data lines and first scan lines. The pixel array is arranged in multiple pixel rows by multiple pixel columns, and includes a first pixel row, a second pixel row, and a third pixel row which are adjacent pixel rows. The first scan line is coupled to multiple first pixel groups. Each first pixel group includes multiple first pixels in the first pixel row and multiple second pixels in the second pixel row adjacent to the first pixel row. A display driving circuit for driving a display panel is also provided.

A novel semiconductor device or a highly reliable semiconductor device is provided. The on/off state of a transistor which functions as a switch for writing data is controlled using the potential of a potential hold portion. The potential of the potential hold portion is controlled using a plurality of capacitors, whereby both a positive potential and a negative potential can be held in the potential hold portion. Accordingly, deterioration of the transistor which functions as the switch for writing data can be prevented and the characteristics of the transistor can be maintained. Therefore, the highly reliable semiconductor device can be provided.

A standby power controller (SPC) supplies power to an appliance such as a television, and cuts power to the appliance if the appliance is going unused. The SPC includes first and second sensors, each detecting a type of user activity (such as user presence and remote control usage), and a switch which controls power to the appliance in dependence on the detection status of the first and second sensors, and also preferably in dependence on the prior detection status of at least one of the sensors at one or more points of time in the past.

A display device is provided, the display device includes a first display portion, a second display portion not in a same plane with the first display portion, and a side display portion connected between the first display portion and the second display portion, a brightness of the second display portion is less than a brightness of the first display portion and a brightness of the side display portion.

Provided is a scan driving circuit including a plurality of unit scan driving circuits, at least one of the plurality of unit scan driving circuits including: a first transistor configured to receive a prior scan signal in synchronization with a first clock signal and to respond to an enable level of the prior scan signal to output a second clock signal as a corresponding scan signal during one cycle of the first clock signal; a second transistor coupled between the first transistor and a first voltage; and a third transistor coupled to a gate of the second transistor and configured to be turned on by a first signal. A width of a first wire configured to transfer the first clock signal and a width of a second wire configured to transfer the second clock signal are larger than that of a third wire configured to transfer the first signal.

A DC-DC converter may include: a first converter for converting an input voltage to generate a first power supply voltage; a duty ratio controller configured generate a duty ratio control signal for controlling a duty ratio of a switching pulse of the first converter; a switching frequency controller configured to generate a switching frequency control signal for controlling a driving frequency of the first converter corresponding to a switching frequency of the switching pulse; and a current sensor configured to sense current flowing through the first converter. The first converter is driven at a switching frequency of a first frequency in a first mode, based on the switching frequency control signal, and generates the first power supply voltage of a first level, based on the duty ratio control signal. The switching frequency controller determines whether to turn off the current sensor.