4results about How to "Increase backlight brightness" patented technology

The invention discloses a gradienter for a handheld tool, and relates to the technical field of handheld tools, the gradienter comprises a gradienter fixing frame, the front side of the gradienter fixing frame is fixedly connected with a universal bubble gradienter, and the center of the upper end of the gradienter fixing frame is fixedly connected with a vertical fixing seat; a universal bubble level is fixedly connected to one side of the vertical fixing base, a cylindrical bubble level is fixedly connected to the upper end of the vertical fixing base and is perpendicular to the front side plane of the universal bubble level, and a butt joint fixing mechanism is fixedly connected to one side of the level fixing frame. The machining precision is improved, the requirement for machining experience is reduced, and the universal bubble level and the cylindrical bubble level are low in production and use cost and convenient to popularize and use.

The ultrathin low-power-consumption high-brightness LED backlight liquid crystal screen comprises a display screen shell, and liquid crystal screen glass, a composite brightness enhancement film, a brightness enhancement film, a diffusion film and an aluminum substrate are sequentially installed in the display screen shell from outside to inside. The aluminum substrate is provided with LED lamp beads. The liquid crystal screen glass and the composite bright enhancement film are provided with LCD layers; a reflecting film is arranged on the surface of the aluminum substrate, and a heat conduction layer is arranged between the back side of the aluminum substrate and a rear cover of the display screen shell. The reflecting film is arranged on the surface of the aluminum substrate to further reflect the light emitted by the LED lamp beads, so that the utilization rate of the light is improved, the overall brightness is improved, and the heat conduction layer is arranged between the back side of the aluminum substrate and the rear cover of the display screen shell, so that the heat conduction efficiency is improved. In this way, the temperature generated when the LED lamp beads work is transmitted to the display screen shell through the aluminum substrate and the heat conduction layer for heat dissipation, so that the internal temperature is reduced, and the situation that the internal temperature of the liquid crystal screen is too high is avoided.

The application discloses an ambient light self-adaptive liquid crystal display module, which comprises a shell and a panel, and further comprises a sliding rheostat arranged in the shell and used for controlling backlight brightness, a photosensitive resistor arranged on the panel and used for receiving external ambient light, and a comparison controller arranged in the shell and used for controlling the sliding rheostat, which is electrically connected with the sliding rheostat through a first sensor and electrically connected with the photosensitive resistor through a second sensor. The photosensitive resistor, the comparison controller and the two sensors are arranged, the effective resistances of the sliding rheostat and the photosensitive resistor are collected by the sensors in real time, and are converted into electric signals and sent into the comparison controller for comparison. When the difference between the two electric signals is positive, the resistance of the sliding rheostat is controlled to increase the backlight brightness; when the difference between the two electric signals is negative, the resistance of the sliding rheostat is controlled to reduce the backlight brightness, so that the self-adaptive adjustment of the backlight brightness to the ambient light is realized.

The present invention discloses a method, device, display device and computer-readable storage medium for adjusting the backlight brightness of a display device. The method comprises: firstly obtaining an output image including a video playback area and a non-video playback area, then determining a first backlight partition corresponding to the video playback area according to the output image, then obtaining first backlight control data of the first backlight partition, and adjusting the first backlight control data according to a preset backlight ratio, and finally adjusting the backlight brightness of the display device according to the adjusted first backlight control data, so that the first backlight brightness of the video playback area is higher than the second backlight brightness of the non-video playback area, thereby achieving the effect of highlighting the playback effect of the video display area and improving the picture contrast, so that the playback picture in the video display area is more prominent.