7results about How to "Small driving current" patented technology

The invention discloses a light-emitting element, and the element comprises an LED chip which is provided with a first surface, a second surface opposite to the first surface, and a side wall connected with the first surface and the second surface. The wavelength conversion layer is at least arranged on the first surface of the LED chip; the electrode expansion structure is arranged on the second surface of the LED chip; the packaging layer at least surrounds the LED chip, the wavelength conversion layer and the electrode expansion structure; and at least one functional structure module selected from the group consisting of the following structure modules. The method can flexibly adapt to different application scenes.

This application discloses a display panel and its driving method and display device, relating to the field of display technology. After the display panel enters a first display mode, the total duration H1 of the light emission control signal being at the enable level in the m light emission holding frames of the first screen refresh frame is set to be less than the total duration H2 of the light emission control signal being at the enable level in the m light emission holding frames of the second screen refresh frame, thereby reducing the light emission duration of the first screen refresh frame, and / or, the bias voltage signal DVH1 corresponding to the x-th light emission holding frame in the first screen refresh frame is set to be greater than the bias voltage signal DVH2 corresponding to the x-th light emission holding frame in the second screen refresh frame, thereby reducing the driving current of the driving transistor in the pixel circuit; thereby reducing the brightness of the first screen refresh frame, weakening the brightness jitter of the first screen refresh frame, improving the brightness consistency of the display panel in timing, and thus improving the display effect.

A gate drive circuit adapted to high junction temperature environments, and its turn-on and turn-off methods, are disclosed. The gate drive circuit includes a main three-terminal transistor, a turn-off circuit, and an auxiliary circuit. The added auxiliary circuit generates an auxiliary current signal, either in the same direction or opposite to the control signal current, to the control electrode of the main three-terminal transistor during the turn-on and turn-off processes within a preset time period. This disclosure enables the generation of corresponding positive or negative auxiliary current signals at the control electrode of the three-terminal transistor. During the conduction process, the auxiliary circuit can generate a reverse auxiliary current signal at the control electrode of the three-terminal transistor during the current rise phase, reducing the drive current of the turn-on signal to decrease di. d / dt, suppressing the turn-on current; during the turn-off process, the auxiliary circuit can generate a unidirectional auxiliary current signal at the control electrode of the three-terminal transistor in the current-decreasing segment, increasing the drive current of the turn-off signal and accelerating the turn-off speed.

A display device according to an example of the present disclosure includes a substrate in which a light emitting region and a non-light emitting region are divided and a plurality of sub-pixels are defined, an insulating layer disposed above the substrate, a first electrode disposed in each of the plurality of sub-pixels, a bank disposed on the insulating layer and exposing the first electrode through an opening thereof, an organic layer disposed on the first electrode, and a second electrode disposed on the organic layer. The bank includes an exposed side obtained by removing one region between the plurality of sub-pixels and an undercut structure inward from a lower end of the exposed side. The bank further includes an exposed side obtained by removing one region between the plurality of sub-pixels and a trench structure obtained by removing a portion of a thickness of the insulating layer.

The present application provides a complementary metal oxide semiconductor (CMOS) field effect device, comprising a substrate; a first n-type doped S / D region and a second n-type doped S / D region; a first p-type doped S / D region and a second p-type doped S / D region; a first channel layer disposed above the substrate, the first channel layer comprising a first sub-layer and a second sub-layer; wherein the first and second n-type doped S / D regions are disposed on a first side of the first channel layer, and the first and second p-type doped S / D regions are disposed on a second side of the first channel layer, the second side being opposite to the first side; wherein an energy of a conduction band edge of the first sub-layer is lower than an energy of a conduction band edge of the second sub-layer; and wherein an energy of a valence band edge of the first sub-layer is lower than an energy of a valence band edge of the second sub-layer; and a gate structure adjacent to the first sub-layer and the second sub-layer of the first channel layer.

The application relates to a method, device, system and equipment for automatically regulating the running current of a projector light source. The method automatically regulates the running current of the projector light source according to the curve change rate of a brightness change curve to determine whether the projector light source is working in a similar saturation state. The driving current of the projector light source working in the similar saturation state is adjusted, that is, the corresponding driving current is matched according to the actual brightness value of the projector, the driving current of the projector light source working in the similar saturation state is reduced, the projector light source is prevented from working in the similar saturation state, the electro-optical conversion efficiency of the projector light source is kept in a high state, the energy consumption of the projector is reduced, the heat generated by the projector light source is reduced, the service life of the projector is prolonged, and the problem that the projector with multiple light sources in parallel working in the similar saturation state after a fault occurs, the output current cannot be adjusted according to the working light source, and the service life of the projector is reduced is solved.

The invention discloses a display driving circuit and display screen energy-saving equipment, and relates to the technical field of display equipment, and the circuit comprises a first power supply module which is connected to the anode of a red light-emitting diode in an LED display unit and is used for providing a first working voltage for the red light-emitting diode; the second power supply module is connected with the anode of a green light emitting diode and the anode of a blue light emitting diode in the LED display unit and used for providing second working voltage for the green light emitting diode and the blue light emitting diode, and the first working voltage is smaller than the second working voltage; the driving module is connected with the cathode of the red light-emitting diode, the cathode of the green light-emitting diode and the cathode of the blue light-emitting diode, and is used for providing driving current for the red light-emitting diode, the green light-emitting diode and the blue light-emitting diode. The row selection module is connected with the row selection end of each LED display unit through a plurality of row selection lines, and is used for sequentially gating each LED display unit in a preset scanning period.