33results about How to "Normal light" patented technology

The present invention discloses a high-temperature protection device for potted plants. The high-temperature protection device for the potted plants comprises a base seat, an upper end of the base seat is fixedly connected with a pot body, an empty cavity is formed in an inner bottom part of the pot body, the empty cavity is internally provided with evaporated liquid, a sliding plug cavity is formed in an inner wall of the pot body, a sliding plug is slidably connected with an inner wall of the sliding plug cavity, and the pot body is provided with a sun-shading device for shading plants in the pot body. When temperatures of soil in the pot body rise, a first ball valve is opened by deformation of a first memory metal, so that the evaporated liquid after heating vaporizing expanding pushesthe sliding plug to move upwards on the inner wall of the sliding plug cavity, water in the sliding plug cavity flows out from liquid spray holes to water green plants in the pot body, when sunlightirradiation in summer is strong, a second ball valve is opened by deformation of a second memory metal, so that the evaporated liquid after vaporizing expanding inflates air into a folding air bag, and the folding air bag is opened to shade the green plants to avoid influence of long-time strong irradiation of outdoor sunlight on the green plants on normal growth of the plants.

The invention discloses a method of using a non-halogen lamp as an automobile lamp, a decoding circuit of using the non-halogen lamp as the automobile lamp and a working method of the decoding circuit and is applied to the field of automobile lamps. The method of using the non-halogen lamp as the automobile lamp solves the problem of detection misjudgment of an automobile system when the non-halogen lamp is used as the automobile lamp, so that the non-halogen lamp can be used for the field of the automobile lamps instead of a halogen lamp. The decoding circuit of using the non-halogen lamp as the automobile lamp is connected between a power source and the non-halogen lamp so that the non-halogen lamp can be lightened normally when the non-halogen lamp is used as the automobile lamp. The working method of the decoding circuit of using the non-halogen lamp as the automobile lamp enables the decoding circuit to be capable of well simulating load characteristics of the halogen lamp and prevent overlarge charging current, and can be used for different automobile models with different automobile system detection signals, so that the automobile system is judged to be in the normal state when in detection.

The invention belongs to the field of optoelectronic materials. The invention discloses a ligand regulation and control method of ABXnY3-n perovskite nanoparticles based on a room temperature method and application. The regulation and control method comprises the following steps: mixing a plurality of precursor solutions containing A ions, ultrashort chain-containing ligands and sodium ions with fatty acid at room temperature, rapidly injecting the mixture into a precursor solution containing B ions, rapidly adding a precursor solution of alkyl ammonium halide into the precursor solution containing B ions after stirring, and continuously stirring to obtain a crude solution of perovskite nanoparticles; and washing to obtain the ABXnY3-n perovskite nanoparticles of which the ligand on the surface is mainly composed of a long-chain ligand alkyl ammonium halide, a long-chain ligand fatty acid, an ultra-short-chain ligand and metal ligand sodium ions. According to the invention, the ultra-short ligand and the metal ligand Na < + > are selected and added into the precursor, so that the surface long-chain ligands of the obtained perovskite nanoparticles are effectively reduced, the ultra-short-chain ligands are effectively increased, the perovskite nanoparticles have both stability and high-efficiency charge transfer characteristic, and the device performance of a light emitting diodebased on the perovskite nanoparticles can be greatly improved.

A light emitting apparatus receives an external power and includes a light-emitting unit, two rectifiers, a first electrical connection element and a second electrical connection element. Each of the rectifiers has a first input terminal, a second input terminal, an output terminal and a ground terminal. The output terminals are electrically connected together and are electrically connected with the light-emitting unit. The first electrical connection element is electrically connected with the external power and the first input terminals. The second electrical connection element is electrically connected with the external power and the second input terminals. The light emitting apparatus can replace the traditional fluorescent tube without changing the circuit of the lighting.

The embodiment of the invention discloses a light-emitting diode (LED) fluorescent lamp and a connecting circuit thereof. The LED fluorescent lamp comprises an LED fluorescent tube; the LED fluorescent tube comprises a first end cap and a second end cap, which comprise two pins respectively; a first bridge rectifier circuit is parallelly connected between the two pins of the first end cap; a second bridge rectifier circuit is parallelly connected between the two pins of the second end cap; the output end of the first bridge rectifier circuit and the output end of the second bridge rectifier circuit are parallelly connected with an LED lamp group which comprises an LED light source group and a circuit for supplying constant current and constant voltage. A first inductor is parallelly connected between the input end of the LED light source group and one pin of the second end cap; and a second inductor is serially connected between the output end of the LED light source group and one pinof the first end cap. By the invention, the LED fluorescent lamp can be used for directly replacing a fluorescent lamp under the condition of no change of a peripheral circuit of the conventional fluorescent lamp.

The invention discloses a display device and a driving method thereof, and relates to the technical field of display. In the device, the current temperature of the display device can be detected through the temperature detection module. A detection result is sent to a backlight control circuit. The backlight control circuit can judge whether the current temperature is greater than a preset temperature threshold value or not according to the detection result, if yes, it is indicated that the display device is in a high-temperature state currently, and a second A temperature detection signal issent to a driving mainboard. Therefore, the driving mainboard controls the backlight driving circuit to apply voltage to a backlight source step by step, and interference of inrush is dispersed. The situation that the maximum current in the backlight source is larger than the self-protection current is avoided, and therefore it is guaranteed that the backlight source can still be normally lightened when the display device is at the high temperature, and then it is guaranteed that the display device can still achieve the display function at the high temperature.

The invention discloses a screen brightness control method, a device and a terminal. The method comprises steps that: a conversation ending indication message sent by a conversation application is detected, and whether a proximity sensor generates a departing event is determined; if the proximity sensor generates no departing event, whether the terminal generates a trigger signal is detected; if the terminal generates the trigger signal, screen lightening is permitted. The method can still lighten a screen normally even when the proximity sensor is blocked by barriers.

The utility model relates to a power supply system of a cold cathode tube, comprising a brightness control unit, a brightness adjustment unit, a control circuit and a voltage converter. The brightness control unit is used to receive lighting signals and output a first brightness signal within predetermined time period. The brightness adjustment unit outputs a second brightness signal according toinput of the users. The control circuit outputs power control signals according to the first brightness signal and the second brightness signal. The voltage converter outputs AC voltage to drive a lamp tube according to power control signals; wherein, within preset time period, the control circuit outputs power control signals according to the first brightness signal; after the preset time period, the control circuit outputs power control signals according to the second brightness signal.

The invention relates to a self-adaptive power matching circuit of a fluorescent lamp, which comprises a micro control unit (MCU), a driving circuit and a fluorescent lamp tube, and also comprises a detection circuit connected with the fluorescent lamp tube for acquiring a current or voltage signal of the fluorescent lamp tube. The MCU comprises a feedback detection module, a power matching module and a frequency modulation control module; the feedback detection module receives the current or voltage signal output by the detection circuit, and converts an analog signal into a digital signal; the power matching module receives the signal and performs power matching processing, and detects the starting frequency of the fluorescent lamp tube; and the frequency modulation control module outputs pulse width modulation wave corresponding to the installed fluorescent lamp tube according to the starting frequency, and enables the fluorescent lamp tube to emit light normally through the driving circuit. The invention also relates to a self-adaptive power matching method for the fluorescent lamp. Through the circuit and the method, the ballast can adapt to a plurality of lamp tubes with different power, and the waste and high use-cost caused by replacing the ballast due to replacing the fluorescent lamp tube are avoided.

The embodiment of the invention discloses a backlight module and a curved-surface display device. The backlight module comprises a frame, a light guide plate, a back plate, a circuit board and multiple lamp sources; the light guide plate is arranged in the frame; the back plate is arranged between the light guide plate and the inner wall of the frame; the circuit board is not arranged on the lightexiting surface of the light guide plate, and at least one convex portion used for clamping the light guide plate is arranged at the edge of the circuit board; and the lamp sources are correspondingly arranged on the light entering side of the light guide plate and electrically connected with the circuit board. The convex portions used for clamping the light guide plate are arranged at the edge of the circuit board, therefore, the edge of the light guide plate is clamped after the light guide plate is bent, the light entering side of the light guide plate always keeps aligned with the lamp sources, resilience of the light guide plate is prevented, normal light entering is guaranteed, and then the problems that uneven brightness and local spot defects are generated are avoided.

The invention belongs to the field of optoelectronic materials, and discloses a method based on room temperature ABX n Y 3‑n Ligand control method and application of perovskite nanoparticles. The control method is to mix multiple precursors containing A ions, ultra-short-chain ligands, and sodium ions with fatty acids at room temperature, and quickly inject them into the In the precursor solution of B ions, quickly add the precursor solution of alkyl ammonium halide to it after stirring, and continue to stir to obtain the crude solution of perovskite nanoparticles; after washing, the ligands on the surface are mainly composed of long-chain ligands. ABX composed of alkyl ammonium halides, long-chain ligands fatty acids, ultra-short-chain ligands and metal ligands sodium ions n Y 3‑n Perovskite nanoparticles. The present invention selects ultrashort ligand and metal ligand Na + When added to the precursor, the long-chain ligands on the surface of the obtained perovskite nanoparticles are effectively reduced, and the ultra-short-chain ligands are effectively increased. It has both stability and high-efficiency charge transport characteristics, and can greatly improve the light-emitting diodes based on it. device performance.

The invention provides an organic electroluminescent display panel, a preparation method and a display device, which are used for avoiding the problem of pixel crosstalk caused by transverse conduction of a charge generation layer, and the organic electroluminescent display panel provided by the invention comprises a substrate, an anode layer arranged on the substrate, a pixel defining layer for defining a pixel unit, and a cathode layer which covers the anode layer and the pixel defining layer; at least two organic light-emitting units which are connected in series and cover the anode layer and the pixel defining layer are arranged between the anode layer and the cathode layer, and a charge generation layer is arranged between every two adjacent organic light-emitting units, wherein a groove is formed in the pixel defining layer between the adjacent pixel units, each charge generation layer is disconnected at the groove, and the cathode layer is continuous at the groove.

The invention discloses a miniature flashlight fabricated from a high-brightness light-emitting diode. The miniature flashlight comprises a power supply, a power switch, a resistor and the light-emitting diode, wherein a positive electrode of the power supply is connected with one end of the power switch via a wire, the other end of the power switch is connected with one end of the resistor via the wire, the other end of the resistor is connected with a positive electrode of the light-emitting diode via a wire, a negative electrode of the light-emitting diode is connected with a negative electrode of the power supply via a wire, a positive electrode support is arranged in the light-emitting diode, a pin is arranged at one end of the positive electrode support, and a first welding point anda second welding point are arranged on the pin. The two welding points are arranged on the pin, and thus, two or more wires can be more conveniently and simultaneously welded; and round holes are formed in middle parts of the welding points, the wires can directly penetrate through the round holes for welding when the wires are welded, and the welding is more convenient and firm.

The invention discloses a method of using a non-halogen lamp as an automobile lamp, a decoding circuit of using the non-halogen lamp as the automobile lamp and a working method of the decoding circuit and is applied to the field of automobile lamps. The method of using the non-halogen lamp as the automobile lamp solves the problem of detection misjudgment of an automobile system when the non-halogen lamp is used as the automobile lamp, so that the non-halogen lamp can be used for the field of the automobile lamps instead of a halogen lamp. The decoding circuit of using the non-halogen lamp as the automobile lamp is connected between a power source and the non-halogen lamp so that the non-halogen lamp can be lightened normally when the non-halogen lamp is used as the automobile lamp. The working method of the decoding circuit of using the non-halogen lamp as the automobile lamp enables the decoding circuit to be capable of well simulating load characteristics of the halogen lamp and prevent overlarge charging current, and can be used for different automobile models with different automobile system detection signals, so that the automobile system is judged to be in the normal state when in detection.

The invention discloses a built-in power supply type LED (Light-Emitting Diode) fluorescent tube safety power-up switch. The built-in power supply type LED fluorescent tube safety power-up switch is characterized by comprising a shell which is internally provided with two conductive electrodes, wherein an insulating gap is arranged between the two conductive electrodes; the two conductive electrodes and the insulating gap form a cavity; and the cavity is provided with a metal gravity ball which can roll on the cavity to further affect an on / off state of the switch. The built-in power supply type LED fluorescent tube safety power-up switch has the beneficial effects of improved safety and easy installation.

The embodiment of the invention discloses an LED (light emitting diode) fluorescent lamp and a fluorescent lamp connecting circuit, The LED fluorescent lamp comprises an LED fluorescent lamp tube which comprises a first end cover and a second end cover, the first end cover and the second end cover respectively comprise two pins, a first bridge rectifier circuit and a second bridge rectifier circuit are respectively connected in parallel between the pins of the first end cover and the second end cover, the output ends of the first bridge rectifier circuit and the second bridge rectifier circuit are connected in parallel with an LED lamp bank which comprises an LED light source group and a circuit which is used for providing constant current or constant voltage for the LED light source group, a first capacitor is connected in series between the input end of the LED lamp bank and a pin of the second end cover, and a second capacitor is connected in series between the output end of the LED lamp group and a pin of the first end cover. By adopting the LED fluorescent lamp and the fluorescent lamp connecting circuit, a fluorescent lamp is directly replaced by the LED fluorescent lamp under the condition that a peripheral circuit of a traditional fluorescent lamp is not changed.

The invention discloses a shading window, and belongs to the field of glass door windows. According to the shading window, light near the window is shielded, and the need of indoor normal light transmission is met while shielding is conducted. The shading window is characterized in that a first curtain and a window frame are included; a second supporting rod is arranged at the lower end of the window frame and fixedly connected with the lower end of the first curtain; a sliding rod is arranged in the window frame in the vertical direction and slidably connected with a first sliding block; andthe first sliding block is connected with the upper end of the first curtain, and a first driving piece for driving the first sliding block to slide on the sliding rod is arranged in the window frame.

The invention relates to a built-in power type safe LED fluorescent tube lamp holder which is characterized by being provided with a circular shell, wherein the shell is divided into a front part and a back part by a partition; the front part is a closed cavity, and the rear part is an open structure which is combined with the tube lamp body; the front end face of the closed cavity is provided with a pair of lamp holder contact pins, and middle part of the cavity is provided with a position sensor unit which forms a loose fit with the inner diameter of the shell; the position sensor unit is made of an insulating material; a position sensing ball, which is exposed outside the front end face and has the function of retraction, is arranged between the position sensor unit and the front end face; a pressure spring is arranged between the position sensor unit and the partition; the position sensor unit and the partition are respectively provided with an electricity applying contact and an electricity receiving contact matched with the electricity applying contact; and the lamp holder contact pins are electrically connected with the electricity applying contact. The invention is convenient to use and greatly enhances the electricity use safety.