5results about How to "Control brightness" patented technology

The utility model provides a novel LED light supplementing lamp, include: base component includes the bottom disc and a plurality of trundle, support component includes vertical support rod, horizontal support rod, swing bar, swing piece and connecting piece, vertical support rod is located on the bottom disc, horizontal support rod detachably is sleeved on vertical support rod, light supplementing component includes light supplementing lamp tray and light control box, light supplementing lamp tray articulates on connecting piece, the disc surface of light supplementing lamp tray is evenly arranged with a plurality of LED lamp holder from the circumference of circle to the edge, and light control box is connected with light supplementing lamp tray wire. The utility model discloses through support component can adjust the height, position and angle of light supplementing component at random, and light control box can control the luminance, running time, frequency of lamp tray, so that the utility model discloses not only can adapt to people's various sitting posture, make the vertical illumination of light supplementing component can adapt to the light receiving direction of retina, thereby making the utility model realize better practical effect.

The utility model discloses a kind of rotary control light modulation switch panels, it is related to switch panel technical field, including installation shell, quick release mechanism is arranged in the inside of installation shell, the quick release mechanism includes the fixed box of the inside fixed connection of installation shell, the inside hinged of fixed box has movable rod, the inside sliding connection of fixed box has self-locking block, the side of self-locking block is equipped with self-locking groove, the inside of self-locking groove and the upper end sliding connection of movable rod, the lower surface of self-locking block is fixedly connected with spring, the upper surface of self-locking block is hinged with limit buckle, the inside of limit buckle is clamped with buckle. The light modulation switch panel of the present application is used in cooperation by fixed box, movable rod, self-locking block, self-locking groove, spring, limit buckle and buckle, after the device is installed on wall, when needing to repair installation shell inside, staff can be conveniently disassembled, prevent shell from being damaged when disassembling, realize quick assembly.

The invention relates to display equipment and an image display method, and relates to the technical field of display equipment. The display apparatus includes a display, a backlight assembly, and a controller. Wherein the backlight assembly comprises a plurality of backlight subareas, and each backlight subarea comprises a plurality of color backlight sources; the controller is respectively coupled with the display and the backlight assembly, and is configured to determine a target color value to be displayed in the display by each pixel in an input image; obtaining a compensation image of the input image and backlight information of each backlight partition corresponding to the input image according to the target color value and the light transmittance information of the display; and controlling the display to display the compensation image, and adjusting the brightness of the color backlight source in each backlight subarea according to the backlight information of each backlight subarea. The image display effect of the display equipment can be improved.

The utility model provides intelligent tunnel lighting equipment, which relates to the technical field of tunnel lighting and comprises a mounting frame and a lampshade, a lighting lamp body is arranged in the lampshade, a central control component is arranged in the lampshade, and a light sensor, an infrared sensor and a fog sensor are arranged on the outer side of the lampshade. The central control assembly is arranged in the lampshade and electrically connected with the light sensor, the infrared sensor and the fog sensor, the brightness of the illuminating lamp body can be intelligently controlled according to illumination, personnel and vehicle activities and fog conditions in a tunnel, energy is saved, and meanwhile the illumination requirement in the tunnel is guaranteed; and when the fog sensor detects fog, the central control assembly controls the motor to start, the motor drives the threaded rod to rotate, and the threaded rod is in threaded connection with the connecting block, so that the rubber water scraping plate is driven to slide back and forth in the cleaning frame along the surface of the lampshade, the fog is scraped, the transparency of the lampshade is kept, and the lighting effect is ensured.

The invention provides a pixel circuit, a pixel array, a display panel and a display device, and relates to the technical field of display. The pixel circuit comprises a digital logic module used for generating a pulse width modulation signal; the switch module is connected with the digital logic module; the driving tube is connected with the switch module; the digital logic module can control the switch module through a pulse width modulation signal so as to control the on-off of the driving tube, thereby controlling the brightness of the light-emitting device. According to the technical scheme, the cross-voltage loss of the pixel circuit can be reduced, and the occupied area of the pixel circuit can be reduced.