An image element is disclosed having first and second supply terminals, a light emitting semiconductor component, a driver circuit comprising a driver transistor, a storage capacitor, and a switching transistor, and a trigger circuit comprising an output transistor and a control capacitor. The light emitting semiconductor component and the driver transistor are arranged in series with each other and between the first supply terminal and the second supply terminal. A first electrode of the storage capacitor is coupled to a control terminal of the driver transistor. The switching transistor is configured to switch on and off a current flow through the light emitting semiconductor component. A first electrode of the control capacitor is connected to a control terminal of the output transistor. A first terminal of the output transistor is connected to a control terminal of the switching transistor. Furthermore, a method for operating an image element, in particular such an image element, is disclosed.

Provided is a device for controlling luminance of a display, having a simplified ACL circuit compared to the prior art. The device for controlling luminance of a display calculates the average luminance (Y_avg) when video data is input, and determines the luminance variation (ΔY) according to the average luminance. The device for controlling luminance of a display may adjust the luminance of a display by controlling a current (driving current) that is used to drive a light-emitting diode included in a pixel, instead of modifying video data for the adjustment of luminance. That is, unlike the prior art, the device for controlling luminance of a display does not modify video data, for the control of luminance.

A display device with low power consumption is provided. A display device having high visibility regardless of the ambient brightness is provided. The display device includes a light-receiving element, a display element, a first transistor, and a second transistor. One of a source and a drain of the first transistor is electrically connected to one electrode of the light-receiving element. The one of the source and the drain of the first transistor is electrically connected to one of a source and a drain of the second transistor. The display device has a function of, by turning on the second transistor, changing the gray level of the display element in accordance with the amount of light detected by the light-receiving element.

An electronic apparatus is provided, which includes a memory storing an input image, a backlight unit, a driver configured to output a driving current to the backlight unit, and a processor configured to identify a time interval at which current is applied among a plurality of time intervals based on a value of a plurality of first bits among a plurality of bits representing a gray level value of the input image, and control the driver to change a magnitude of a current of a time interval among the plurality of time intervals based on at least one second bit which is the rest of the plurality of bits excluding the plurality of first bits, and a number of the plurality of time intervals is determined based on the number of the plurality of first bits.

A pixel circuit and a display panel are disclosed. The pixel circuit comprises a first transistor, a pulse amplitude driving module, and a pulse width driving module. The pixel circuit and the display panel utilize a pulse amplitude driving module to drive the first transistor when a middle to high gray value of a frame is being displayed such that the number of frequency divisions in a high gray value could be reduced. Furthermore, the pixel circuit and the display panel utilize a pulse width driving module to drive the first transistor when a middle to low gray value of the frame is being displayed to improve the light emitting efficiency and luminance evenness in a low gray value.

A display device that can compensate for degradation of circuit elements while suppressing an increase in circuit size is implemented. A data signal line (S(j)) is not only used as a signal line that transfers a signal for allowing an organic EL element (OLED) in each pixel circuit (11) to emit light at a desired luminance, but also used as a signal line for characteristic detection. In addition, a switch (334) is provided between the data signal line (S(j)) and an internal data line (Sin(j)). In such a configuration, during an AD conversion period during which analog data obtained for characteristic detection is converted into digital data, the switch (334) is brought into an off state and a potential of the data signal line (S(j)) obtained immediately before the AD conversion period is supplied from through a predetermined control line (CL) to the data signal line (S(j)).

An electroluminescent display apparatus can include a display panel including a plurality of pixels, and a luminance adjuster. The luminance adjuster can select a target optical band corresponding to a digital brightness value from among a plurality of optical bands for differently controlling a maximum luminance of an image implemented in the display panel, and can adjust a black grayscale data voltage corresponding to the target optical band. The black grayscale data voltage can be differently set in at least two of the plurality of optical bands.

In order to provide a single-unit sensor which serves as both an illuminance sensor and a proximity sensor, the sensor (1) includes a light receiving element section (E1), an infrared cut-off filter (IRcutF), and a switching section (SWS) for switching spectral characteristics of the light receiving element section (E1). The infrared cut-off filter (IRcutF) has an opening, and an infrared light receiving P-N junction (PDir) is provided at a location deeper in a substrate than a visible light receiving P-N junction (PDvis).

A display module comprises: a display panel; and a driving unit configured to apply a first control signal for setting a PWM data voltage to sub-pixels, included in each row-line of the display panel for each image frame, to the sub-pixels in a row-line order, and apply a second control signal for controlling the light emission of sub-pixels, included in each row-line, to the sub-pixel in a row-line order, wherein the sub-pixels included in each row-line emit light for a time corresponding to the PWM data voltage set according to the first control signal, based on the second control signal applied to the light emission section corresponding to the image frame, and do not emit light for a preset time based on second control signal applied in a period between consecutive image frame periods.

A pixel driving circuit and a driving method thereof, a display panel and a display device are provided. A second light emitting control device controls, in a case that a first light emitting control device controls a floating signal to be transmitted to a gate of a drive transistor for a first predetermined time period, a driving current to be transmitted to a light emitting element, and the light emitting element can emit light. In this way, the light emitting element can be driven to emit light after a fluctuation period of a voltage of the gate of the drive transistor during which the floating signal is initially inputted to the gate of the drive transistor is passed, improving the stability of the pixel driving circuit in driving the light emitting element.