32results about How to "Wide luminous range" patented technology

The present technology relates to a reproduction device, a reproduction method, and a recording medium capable of displaying graphics with a broader dynamic range of luminance and appropriate brightness.An optical disc records tone_mapping_info including HDR information indicating a luminance feature of HDR graphics which are graphics with a second luminance range different from and broader than a first luminance range, tone_mapping_info which is tone mapping definition information used when luminance conversion from the HDR graphics to STD graphics which are graphics with the first luminance range is performed, and a graphics stream including data of the HDR graphics. The present technology is applicable to a recording medium recording graphics.

A liquid crystal display apparatus having first white color light sources and blue and / or red second coloring light sources disposed on a back side of a liquid crystal panel, and an image quality processing calculation circuit for detecting a brightness of input image signals, in accordance with a detection result, controlling intensities of the first white color light sources and / or second coloring light sources and correcting pixel signals to be supplied to the liquid crystal panel.

Generating a color profile for a digital input device. Color values for at least one color target positioned within a first scene are measured, the color target having multiple color patches. An image of the first scene is generated using the digital input device, the first scene including the color target(s). Color values from a portion of the image corresponding to the color target are extracted and a color profile is generated, based on the measured color values and the extracted color values. The generated color profile is used to transform the color values of an image of a second scene captured under the same lighting conditions as the first scene.

The invention relates to an electrical connector component with a light-emitting device, comprising an electrical connector, light-emitting elements and a light-guiding element. The electrical connector component is characterized in that the electrical connector is provided with a plug interface, the light-guiding element is provided with a light-guiding ring, the light-guiding ring surrounds theperiphery of the plug interface, one face of the light-guiding ring, which is exposed to the outside, is provided with a rough surface, the light-emitting elements are symmetrically distributed by taking the centre line of the light-guiding ring as an axis, and light emitted by the light-emitting elements can be transmitted from the light-guiding ring by the light-guiding element.

The invention provides a white-light alloy quantum dot and a preparation method therefor, an electroluminescent diode and a photoluminescence diode. The white-light alloy quantum dot is prepared by a thermal injection method in combination of jacketing for multiple times; the reaction temperature is low, the reaction time is short and the yield is high; the prepared white-light alloy quantum dot is good in crystalline forming effect and high in stability; the nanocrystal dimensions are easy to control and uniform in distribution; and the prepared electroluminescent diode and photoluminescence diode are wide in range and relatively high in color rendering index, and can achieve composite white light. The preparation method provided by the invention is simple to operate, mild in conditions, low in energy consumption, low in cost, easy to control a process, and suitable for large-scale industrial popularization.

The invention relates to the field of semiconductor photoelectric materials, and provides a multielement-doped strontium phosphate luminescent film which has a general formula of Sr[2-x-y-z]P2O7 : xSn<4+>, yTi<4+>, zEu<3+>, wherein x value is 0.01-0.1; y value is 0.005-0.05; and z value is 0.01-0.04. The invention also provides a preparation method for the multielement-doped strontium phosphate luminescent film and applications of the multielement-doped strontium phosphate luminescent film obtained by the method in field emission devices, cathode-ray tubes or electroluminescent devices.

The invention discloses a lamp bulb shell. The lamp bulb shell is arranged on the periphery of a columnar base in a coordinating sleeving manner. The lamp bulb shell is a hollow columnar shell which is designed corresponding to the columnar base. The outer ring of the columnar base is provided with at least one LED light bar. A plurality of LED chips are distributed on the LED light bars, and thedistance D between each LED chip on each LED lamp bar and the shell is larger than 0. According to the lamp bulb shell, due to the fact that the periphery of the columnar base is provided with the LEDlamp bar, the light emitting area can be greatly increased, by coordinating with the shell covering the LED light bars and playing a role in light uniformizing and dazzling preventing, after light rays of the LED chips are diffused by the shell, the light emitting angle of a whole lamp is larger than 300 degrees, and compared with an existing LED lamp with a double-layer bulb shell, the whole lamp is wider in light emitting range; and the columnar base is longitudinally arranged, the LED light bars are distributed in the double-layer bulb shell in a three-dimensional manner, a heavy lamp holder cannot appear in the bulb lamp which is formed in this way, and therefore the bulb lamp is more approximate to a traditional incandescent light bulb in appearance.

The invention discloses a rotary-support-based bank light structure. The rotary-support-based bank light structure comprises a fixed base and a rotary base rotatably connected with the fixed base. Therotary base is connected with four rotary clamping blocks through rotary rods. Light holders are fixed to the corresponding rotary clamping blocks through bolts. The fixed base is provided with a cylindrical clamping groove. A cylindrical rod is arranged at the bottom of the cylindrical clamping groove in a threaded fit mode. The upper end of the cylindrical rod is in threaded fit with a circularcover plate. The rotary base is provided with a cover plate groove matched with the circular cover plate. A circular bottom hole matched with the cylindrical rod is formed in the center of the bottomof the cover plate groove. Through cooperation of the cylindrical rod and the circular bottom hole and cooperation of the rotary rods and the rotary clamping blocks, 360-degree all-directional and no-dead-angle operation of a bank light is effectively guaranteed. Meanwhile, the fixed base, the rotary base, the rotary clamping blocks and the lamp holders are connected through the rotary rods and the bolts, and the problems of high workload and low efficiency of disassembling and assembling of the bank light are solved.