79results about How to "Reduce luminous brightness" patented technology

The invention discloses an intelligent integrate kitchen with an interaction function, which comprises a floor cabinet, a wall cupboard and a main control panel, wherein a hearth is arranged on the floor cabinet; an electronic gas stove is mounted on the hearth; cooking appliances are arranged at the upper end of the electronic gas stove; a smoke exhaust ventilator is mounted on the wall cupboard at the position over against the electronic gas stove; a main controller, a data memory, a main display screen and a first wireless transceiver are arranged on the main control panel; the electronic gas stove comprises a gas stove controller, an electronic igniter, an electronic regulating valve, a gas stove control button and a second wireless transceiver; and the smoke exhaust ventilator comprises an air blower, a ventilator controller and a third wireless transceiver. The intelligent integrate kitchen aims to realize the linkage between the electronic gas stove and the smoke exhaust ventilator through the main controller, and has the advantages that when using the electronic gas stove to cook food, the smoke exhaust ventilator is controlled by the main controller to carry out corresponding smoke exhaust work; and the guarantee of good cooking work environment is facilitated.

The invention discloses an illumination system of an intelligent controlled LED tunnel lamp and the application thereof, which comprises a power supply and distribution device, a group of structure including a plurality of LED tunnel lamps that consist of tunnel lamp burners, direct current drive working power and control units. A sensing signal recognition processor added with a temperature sensor is arranged in each control unit of the LED tunnel lamps in the invention; the front end of the sensing signal recognition processor is successively connected with a sensor signal converting processor and a vehicle detecting sensor through a preposed sensing signal transmission channel in a many-to-one way; signals from the temperature sensor and the vehicle detecting sensor are treated uniformly by the sensing signal recognition processor. The invention can recognize whether vehicles comes from the front of the tunnel so as to control whether the LED tunnel lamps are lightened, and the driving current of the LED tunnel lamp caps or the lightened number of the LED tunnel lamps can be adjusted and controlled according to the detected environment temperature in the tunnel without reducing the brightness of the tunnel lamps, thus realizing the power saving and prolonging the working life of the tunnel lamps.

The invention provides an LED display screen module and a preparation method thereof. The preparation method comprises the steps: 1) fixing a LED display screen module comprising an LED chip array toa jig, wherein the LED chip array is placed upwards; 2) injecting a black filling glue solution into gaps between the LED chips; 3) solidifying the black filling glue solution; 4) forming a transparent packaging layer; and 5) forming an ink color layer on the transparent packaging layer. According to the invention, by combining a transparent packaging layer and an ink color layer, the thickness ofthe ink color layer is greatly reduced compared with that of a traditional pressing mold layer, so that the path change of light passing through the ink color layer under different-angle emergence can be reduced, and the defect that the light emitting brightness and color of the display screen module change along with the viewing angle is reduced; and the thickness of the ink color layer is 5-200microns, the brightness of the display screen module can be effectively reduced to be within the brightness range acceptable to human eyes, and a comfortable visual brightness interval is shaped.

Provided is an organic EL display panel that improves aperture ratio by providing a contact hole beneath an aperture in a bank, and that prevents shortening of the display panel's lifetime by avoiding electric field concentration. An organic EL display panel includes a TFT layer; an interlayer insulation film on the TFT layer and having a plurality of contact holes one per pixel; a plurality of first electrodes, one per pixel, on the interlayer insulation film; a bank defining a plurality of apertures, at least one per pixel, and at least one contact hole is located beneath each aperture; a plurality of organic light-emitting layers each in an aperture; and a second electrode above the organic light-emitting layers. In each aperture, a thickness of the organic light-emitting layer is greater at a portion within the contact hole region than at a portion outside the contact hole region.

Uneven brightness of a surface light source is inhibited and display quality of the surface light source is improved. An LED module (2A), having one or multiple light source units with high peak brightness value and large light and dark contrast difference, and an LED module (2B), having one or multiple light source units with low peak brightness value and small light and dark contrast difference, are arranged alternately. The one or multiple light source units have white resists (6A, 6B) as a reflective material provided above a substrate area (the substrate area being directly below a light diffusion lens (5)) surrounding an LED (4), and the light source unit with high peak brightness value and large dark and light contrast difference and the light source unit with low peak brightness value and small dark and light contrast difference are configured according to the difference in reflectivity between the white resists (6A, 6B). Consequently, the luminance distribution (light and dark contrast) from the light diffusion lens (5) is deliberately adjusted and controlled according to the reflectivity difference between the white resists (6A, 6B), a light section (8) and a dark section (7) are cancelled out, and uneven brightness is significantly inhibited.

The invention discloses a preparation method for an LED chip capable of forming light spots with specific planar geometric patterns through illumination, and a structure of the LED chip. The structure of the LED chip comprises a base plate layer, wherein the LED thin film on the growth substrate is transferred to the base plate layer; a complementary electrode layer, a reflective metal contact layer and a bonding protection layer are arranged between the base plate layer and the LED thin film from upper to lower in sequence; an n electrode is positioned on the LED thin film. Due to the complementary electrode layer, the shape design of the n electrode, and the differences of the metal reflectivity, the chip region (or a region without the complementary electrode layer) is high in luminance, wherein the chip region is corresponding to the reflective metal contact layer which is high in reflectivity and capable of forming ohmic contact with the LED thin film; the chip region (or a region with the complementary electrode layer) is low in luminance, wherein the chip region is corresponding to the bonding protection layer which is low in reflectivity and cannot form ohmic contact with the LED thin film easily, so that the LED chip can form the light spots with specific planar geometric patterns through illumination; and the planar geometric patterns are specific patterns or specific characters.

The invention relates to a solar intelligent street lamp system assisting in traffic control. The solar intelligent street lamp system comprises a solar power generation device converting the solar energy into the electric energy, the output end of the solar power generation device is connected to an energy storage device, the energy storage device supplies power to a controller, an illumination lamp and a camera, the controller controls the on-off state of the illumination lamp, the camera is used for shooting the road condition of the road section where the street lamp is located, and generated video information is sent to the controller; the controller is connected to a wireless sending module, the wireless sending module sends the video information to a traffic control platform, and the traffic control platform controls traffic lights of the road section in real time according to the video information. The solar intelligent street lamp system can collect the road condition information, assist in traffic control and monitor the information of left parking places, and therefore the use range of the solar street lamp is extended, and the solar street lamp can be applied and popularized easily.

A method for brightness adjustment of an infrared light source includes obtaining distance between a captured object and the infrared light source; and adjusting the brightness of the infrared light source according to the distance. Thus, when the captured object is relatively far away from a camera lens, the infrared light source can provide infrared light with sufficient brightness, and when the captured object is relatively close to the camera lens, the light-emitting brightness of the infrared light source is properly reduced, thereby reducing the light emission amount of the infrared light source, and avoiding the problem that the infrared light source is set to be maximum brightness for a long time and thus causing the service life of the infrared light source to be shortened and affecting normal work of the camera.

A conductive layer serving as an auxiliary wiring is formed under a first electrode with a first insulating layer interposed therebetween, and the conductive layer and a second electrode are electrically connected to each other through an opening in the first insulating layer and the first electrode. A second insulating layer is formed over a sidewall of the opening so that the first electrode is not directly in contact with the second electrode in the opening. An EL layer is formed by evaporation in a state where a deposition target substrate is inclined to an evaporation source, so that the second insulating layer serves as an obstacle and a region where the EL layer is not formed by the evaporation and the conductive layer is exposed is formed in part of the opening in a self-aligned manner.

The invention discloses a display screen. The display screen comprises a display portion, a transmission portion and a reflection portion, wherein the display portion and the transmission portion are laminated, the display portion comprises a first display zone and a second display zone, brightness of the first display zone is lower than brightness of the second display zone, the first display zone is used for displaying a status column or a virtual button column, the reflection portion is obliquely arranged at an edge of the display screen close to the first display zone, the reflection portion is used for partially reflecting light emitted by the display portion to the transmission portion to form a brightening zone, and the brightening zone is just opposite to the first display zone. The invention further discloses a terminal. According to the display screen, consumption of luminescent materials of the area of the status column or of the virtual button column can be reduced, and the display screen can be prevented from generating display errors.

In an organic EL device, when a voltage is applied across an anode and a cathode, holes are moved in a hole transport layer and electrons are moved in an electron transport layer, and the holes and the electrons are recombined in a light emitting layer. In the light emitting layer, excitons are produced by energy released upon the recombination, and the excitons release energy in the form of fluorescence or phosphorescence or emit light when returning to the ground state. The hole transport layer is formed from a hole transport material, in which the amount of nonionic impurities having a molecular weight of 5,000 or less, or the amounts of anionic impurities, cationic impurities and nonionic impurities having a molecular weight of 5,000 or less is or are adjusted to be small, so that the decrease of light-emission luminance of the organic EL device is suppressed.

The invention relates to blue light emitting fluophor. The invention a CMS:Eu2+ blue light emitting fluophor which is not difficult to cause reduce of light emitting brightness by attachment of elements such as mercury in a condition that the invention is used for a cold cathode fluorescence lamp using mercury gas in discharge gas. The blue light emitting fluophor is formed by the blue light emitting fluophor particle with basic formation represented by CaMgSi2O6:E2+ covered by a capsule comprising alumina oxide in a mass part scale of 4 to 18 related to 100 mass parts of the blue light emitting fluophor particles.

The embodiment of the invention provides a display screen, a mobile terminal and a control method thereof, relates to the technical field of display, and solves the problem that the mobile terminal cannot realize regional brightness control according to user requirements or product design requirements. The display screen comprises a display driver, a first pixel array and a second pixel array. Thefirst voltage input end of the pixel circuit of the first sub-pixel is electrically connected with the first signal end of the display driver, and receives a first power supply voltage output by thefirst signal end. The second voltage input end is electrically connected with the second signal end of the display driver and receives a second power supply voltage output by the second signal end. And a third voltage input end of the pixel circuit of the second sub-pixel is electrically connected with a third signal end of the display driver, and receives a third power supply voltage output by the third signal end. The fourth voltage input end is electrically connected with the second signal end of the display driver and receives the second power supply voltage output by the second signal end. The third power supply voltage is different from the first power supply voltage in voltage value.

The invention belongs to the field of printing ink preparation and discloses a method for preparing plateau-climate-resisting UV luminous ink. A doping modified micron-scale SrAl2O4: EU<2+>, Dy<3+> long-lasting phosphor material is prepared through sintering; a nano-scale SrAl2O4:EU<2+>, Dy<3+> long-lasting phosphor material is prepared through burning and is applied to the luminous ink through grading, and nano ZnO modified polyacrylic resin, nano SiO2 modified polyacrylic resin and nano TiO2 modified polyacrylic resin are mixed and evenly stirred to obtain ZnO, SiO2 and TiO2 co-doped modified polyacrylic resin which serves as the prepolymer of the ink. The process is simple and easy to realize, and the prepared UV luminous ink is high in aging resistance and wear resistance and suitable for being used on outdoor printed products in plateau areas with strong ultraviolet light and dust storm.

The invention provides a pixel circuit, a driving method thereof and a display device. The pixel circuit comprises a light-emitting element, a data writing sub-circuit, a driving sub-circuit, a storage sub-circuit, a light-emitting control sub-circuit and a voltage reduction sub-circuit. The voltage reduction sub-circuit performs voltage reduction on the data voltage in the charging compensation stage to obtain a first voltage reduction voltage, and outputs the first voltage reduction voltage through the control node; the storage sub-circuit charges and discharges the potential of the controlnode to a first step-down voltage in a charging compensation stage, and controls and maintains the potential of the control node to be the first step-down voltage in a light emitting stage; and the driving sub-circuit is used for conducting connection between the first end of the driving sub-circuit and the first pole of the light-emitting element under the control of the control node in a light-emitting stage so as to drive the light-emitting element to emit light. High contrast is achieved.

A multimedia display comprises a display panel and a direct-lit type backlight module (3). The direct-lit type backlight module comprises a plurality of light emitting modules respectively and independently controlled, and the light emitting modules are LED light bars (30). When the display panel displays a picture with a black edge, the multimedia display can control at least one of the LED light bars corresponding to the black edge in the direct-lit type backlight module, namely all the LED light bars corresponding to a non-display area (12b) of the picture not to give out light or to reduce light emitting brightness. All the light bars, corresponding to the non-display area (12b) of the picture, of the direct-lit type backlight module do not give out light, or part of the light bars do not give out light and the other light bars still normally give out light, or part of the light bars do not give out light, part of the light bars give out weak light, and the other light bars still normally give out light. All the LED light bars corresponding to a normal display area (12a) normally gives out light for sure. When the picture with the black edge is displayed, the picture contrast can be improved, and the power consumption of the direct-lit type backlight module can be reduced.

The invention discloses an electric vehicle lamp brightness adjustment method. According to the method, an illuminance sensor is arranged on the handlebar of an electric vehicle; PWM signals are outputted according to illuminance data sensed by the illuminance sensor; and the output voltage of a power source can be adjusted, so that the light emission brightness of the lamps of the electric vehicle can be adjusted. With the method adopted, the brightness of the lamps of the electric vehicle can be automatically adjusted according to ambient brightness, and energy-saving performance and environmental friendliness can be achieved.

The invention relates to an OLED array substrate, a display panel and a display device, and the OLED array substrate comprises a transparent display area and a non-transparent display area, wherein anon-linear boundary is disposed between the transparent display area and the non-transparent display area; the transparent display area comprises a first OLED pixel and a second OLED pixel; the firstOLED pixel is adjacent to the non-linear boundary and has a first pixel driving circuit, and the second OLED pixel has a second pixel driving circuit; the first OLED pixel is connected to the power line through a first driving transistor of the first pixel driving circuit, and the second OLED pixel is connected to the power line through a second driving transistor of the second pixel driving circuit; the resistance between the first OLED pixel and the power line is greater than the resistance between the second OLED pixel and the power line. The embodiment of the invention can reduce the jaggedness at the interface between the transparent display area and the non-transparent display area.

Disclosed is a phosphor having high luminance, which is composed of M1, M2, M3, M4, a halogen element and O (M1 represents an alkaline earth metal; M2 represents a trivalent metal element; M3 represents an activator element; and M4 represents a tetravalent metal element), with the molar ratio among M1, (M2 + M3), M4, and the halogen element, namely M1:(M2 + M3):M4: halogen element being 1:4:3:a (wherein a is a number within the range of not less than 0.01 but not more than 3). The phosphor can be obtained by firing a metal compound mixture containing M1, M2, M3, M4, and a halogen element (M1, M2, M3 and M4 are as defined above), which additionally contains one or more halides selected from the group consisting of halides of M1, halides of M2 and halides of M3.

The invention discloses a method for treating epitaxial defects, which comprises the following steps: preparing at least one corrosion stop layer on the surface of the epitaxial wafer; destroying the corrosion stop layer of the convex part of the epitaxial defect by physical means to expose the corrosion stop layer the lower epitaxial layer; etch the exposed epitaxial layer by wet etching; remove the etch stop layer and prepare a passivation layer on the surface of the epitaxial wafer.

The invention discloses a solar LED lamp circuit with an abnormal state distinguishing function. The solar LED lamp circuit comprises a solar battery, a charging control circuit, a storage battery, a constant-current driving circuit, an LED light-emitting module, a microprocessor circuit, an electric quantity detection circuit, a sunlight detection circuit, a light detection circuit, an alarm circuit and a communication module circuit. The microprocessor circuit judges whether the solar LED lamp circuit works abnormally according to detection signals of the electric quantity detection circuit, the sunlight detection circuit and the light detection circuit, and sends an abnormal state corresponding to the solar LED lamp circuit to the communication module circuit when the solar LED lamp circuit works abnormally. The advantages of the present invention are that when the solar LED lamp circuit is abnormal and cannot work normally, the abnormal state of the solar LED lamp circuit can be judged, and the abnormal state information is sent to a terminal management device in a radio mode, so that management personnel can know the abnormal condition in time, and maintenance can be effectively carried out in time.