43results about How to "Reduce brightness" patented technology

The invention relates to a lighting device (1) for a motor vehicle for producing a light function comprising a tail lamp and / or a brake lamp. The lighting device (1) according to the invention comprises a lighting unit (10) for generating a light function, the lighting unit (10) being divided into a plurality of segments (11, 12, 13) extending in a main direction (Y), the lighting unit (10) being designed to set the brightness in each of the plurality of segments (11, 12, 13) independently of one another to a predetermined value in order to generate a specific light function. Furthermore, a control unit is used to independently adjust the brightness of the plurality of segments (11, 12, 13), the control unit is designed to set a first high brightness (LUM1), which meets a brake light requirement, in a first segment (11) of the plurality of segments (11, 12, 13) when the light function to be generated comprises activation of the brake light, and to set a second low brightness (LUM2), which meets a tail light requirement or corresponds to a deactivated tail light, in a second segment (12) of the plurality of segments (11, 12, 13), and adjusting the brightness in a third segment (13), which is arranged between the first segment (11) and the second segment (12) in the main direction (Y) and adjoins them, in particular without interruption, from the first brightness (LUM1) of the first segment (11) to the second brightness (LUM2) of the second segment (12) according to a predetermined change function.

A display device is provided. The display device includes: a plurality of first electrodes electrically connected to pixel circuitry disposed on a substrate; a pixel defining film defining a plurality of opening regions exposing a portion of each of the plurality of first electrodes; a plurality of light-emitting layers, each of the plurality of opening regions disposed on the first electrode; a second electrode covering the plurality of light-emitting layers and the pixel defining film; an encapsulation layer disposed on the second electrode; and a plurality of light-shielding patterns disposed on the encapsulation layer between the plurality of opening regions adjacent along a first direction.

A display substrate and a display device. The display substrate comprises a plurality of array distributed sub-pixels, a pixel driving circuit of a plurality of sub-pixels forms M pixel rows and N pixel columns; the display substrate further comprises a first initialization signal line and a second initialization signal line extending along a first direction; the pixel driving circuit comprises a plurality of transistors and a light emitting device, the plurality of transistors comprising a driving transistor; the light emitting device comprises a first electrode; wherein the first initialization signal line is respectively electrically connected with the mth row of sub-pixels, and is configured to transmit a first initialization signal to the control electrode of the mth row of pixel driving transistors; the second initialization signal line is respectively electrically connected with the m-1th row of sub-pixels, and is configured to transmit a second initialization signal to the first electrode of the light emitting device of the m-1th row of sub-pixels, m is a positive integer greater than or equal to 1 and less than or equal to M; the first initialization signal is different from the second initialization signal.

The invention relates to the technical field of liquid crystal display control, in particular to a thin film liquid crystal display control panel control method based on time sequence adjustment, which comprises the following steps: applying a test voltage within a frame blanking duration of a thin film liquid crystal display panel, and detecting an aging characterization voltage; determining the establishment delay duration of the output data signal relative to the gate signal; adjusting the starting pulse width of the grid signal according to the established delay duration; determining a common electrode voltage according to the starting pulse width; forming a test frame picture; detecting the response duration of the thin film liquid crystal display panel for displaying the test frame picture, and correcting the matching parameters of the establishment delay duration and the starting pulse width according to the response duration; outputting a corrected establishment delay time length and a corrected starting pulse width according to the matching parameters; and driving the thin film liquid crystal display panel to display an image. According to the invention, the image display stability is improved.

The utility model relates to the field of reinforcing steel bar cutting discloses a reinforcing steel bar cutting device for house construction, including the support platform for supporting, the top fixedly connected with the clamping seat of support platform, the inside fixedly connected with the push rod of clamping seat, the output fixedly connected with the push plate of push rod, both sides fixedly connected with the moving plate of push plate, the outside slide connection of moving plate in clamping seat's both sides, the top right side fixedly connected with the fixed seat of support platform, the inside rotationally connected with the turnover lever of fixed seat, the outside fixedly connected with cutting knife of turnover lever, the outside fixedly connected with the pull handle of cutting knife, the top installation of support platform has the limit cover to be used for realizing the splashproof of cutting scrap. In the utility model, the device can reduce the brightness of dazzling and the splash of scrap, improve the security of device use, improve the convenience of device to carry out scrap cleaning.

A liquid crystal display device is provided that can switch between a transparent state and a scattering state, suppressing the decrease in transmittance in the transparent state and suppressing the decrease in brightness of the central portion of the panel in the scattering state. The liquid crystal display device comprises, in sequence from the viewing surface to the back surface: a first liquid crystal panel, a light source, and a second liquid crystal panel. The first liquid crystal panel has a polymer-dispersed liquid crystal comprising a polymer network and liquid crystal components, and the light source illuminates the main surface of the back surface of the first liquid crystal panel from an oblique direction.

The application relates to the technical field of camera equipment, and discloses an underwater monitor which comprises a shell, a display screen and a cover plate. An opening is formed in the shell. A processor is fixedly arranged in the shell. A connecting line is connected to the shell and electrically connected to the processor. The display screen is located in the opening and fixedly connected to the shell. A light intensity sensor is arranged at the edge of the opening. The display screen and the light intensity sensor are electrically connected to the processor. The cover plate is arranged on the opening and sealingly connected to the edge of the opening. The automation degree of the backlight adjustment (brightness adjustment) of the display screen is improved, the manual operation steps are reduced, the labor intensity is reduced, the backlight adjustment of the display screen is more convenient, and the operation is simple.

Provided is a method for producing a polarizing film, which successively includes: subjecting a polyvinyl alcohol-based resin film to dyeing treatment and stretching treatment; and bringing an aqueous solvent into contact with the surface of the polyvinyl alcohol-based resin film, the proportion of the transmittance of the polyvinyl alcohol-based resin film after contact with the aqueous solvent relative to the transmittance before contact at a wavelength λ nm (ΔTs(λ)) satisfying the relationship ΔTs(415) > ΔTs(470) > ΔTs(550).

The utility model discloses an optical system which comprises a light-emitting element, an optical conductor and a lens, the light-emitting element and the optical conductor are of an integrated structure, the light-emitting element is used for emitting light towards a first direction, and the optical conductor at least covers the light-emitting side of the light-emitting element in the first direction; the lenses are arranged on the side, facing the first direction, of the optical conductor at intervals. The optical conductor comprises a first curved surface structure, and the cross section area of the first curved surface structure in the first direction is unchanged or gradually reduced. According to the optical system provided by the utility model, the light-emitting element and the light conductor are designed into an integrated structure, so that the problem of assembly errors caused by a split design is effectively avoided, the stability of light path coupling is improved, and the risk that the lighting effect is reduced is reduced; moreover, the light guide body covers the light-emitting side of the light-emitting element, so that the light emitted by the light-emitting element can be gathered, the angle of the light is narrowed, the light is directionally propagated in a more concentrated manner, the mixing effect of the light with different colors is improved, and the problems of non-uniform color distribution and brightness fluctuation are reduced.

An optical ranging module is defined with an object side and an element side opposite to the object side, and comprises: an optical emission unit; an optical receiving unit; the supporting cover comprises a top and an annular side wall connected with the top, the top is provided with an object side surface, the annular side wall is provided with an outer surface, the top comprises two openings penetrating from the object side to the element side, and the optical transmitting unit and the optical receiving unit are arranged in the two openings respectively; the base is arranged on one side, facing the element side, of the supporting cover; the conductive film is arranged on the object side surface of the top of the supporting cover and the outer surface of the annular side wall; and an anti-reflective film covering the conductive film on the top of the support cover. The anti-reflection film can be made of a low-chromaticity and low-brightness material, so that the reflectivity of the top of the supporting cover is reduced, the measurement accuracy of the optical distance measuring module can be improved, and a terminal product (electronic device) is enabled to present a relatively consistent appearance.

The novel zoom indoor spotlight comprises a shell, a light source assembly, a focusing assembly and a lens assembly, and the focusing assembly comprises a rear lens, a front lens and a focusing mechanism; the small end of the rear lens is close to the light source assembly, and the surface of the small end is provided with a light inlet hole. A shaft hole is formed in the middle of the large-end surface of the rear lens, and a plurality of first annular concave-convex surfaces in a concentric ring array are arranged on the large-end surface; a rotating shaft rotationally matched with the shaft hole is arranged in the middle of the back surface of the front lens, and a plurality of second annular concave-convex surfaces arrayed by concentric rings are arranged at the non-middle position of the back surface; a plurality of first convex parts which are distributed circumferentially are arranged on the first annular concave-convex surface, and the surface of each first convex part is an arc-shaped convex surface; a first concave part is arranged at the position, corresponding to the first convex part, of the second annular concave-convex surface, and the bottom surface of the first concave part is an arc-shaped concave surface. The utility model has the characteristics of stable and accurate focusing, sealed and durable structure, small volume, wide application range, long service life and the like.

The application belongs to the technical field of display control, and specifically discloses an LED liquid crystal display screen partition luminance control method and system, which comprises the following steps: generating current frame and next frame data streams by separating a continuous image sequence; performing spatial pixel statistics on the next frame to generate a target backlight digital value; combining the actual backlight value of the current frame to calculate the time domain variation trend, generating a forward-looking backlight state vector and decoding a hardware control feature code; performing spatial filtering on the target backlight digital value to generate a pulse width signal to drive a light source array; using the hardware control feature code to select a target overdrive lookup table, extracting a basic overdrive compensation voltage; using the internal factor of the hardware control feature code to correct the amplitude of the compensation voltage, generating a final driving voltage and applying it to the pixel to realize the display of a fast response liquid crystal. The application realizes the accurate cooperation of pixel overdrive and backlight dynamic trend, and effectively suppresses visual artifacts.

This disclosure provides a display processing method, apparatus, and display device, belonging to the field of display technology. The display processing apparatus is applied to a display device, the display area of ​​which includes color sub-pixels and white sub-pixels. The apparatus includes: an acquisition module, configured to, when the display device is in video playback mode, acquire a first value of at least one first parameter of a preset area of ​​the display area, the first parameter corresponding to a driving transistor of a pixel driving circuit of the preset area, the value of the first parameter being proportional to the threshold voltage of the corresponding driving transistor; after a first preset time period, acquire a second value of each first parameter; a determination module, configured to determine a target area based on the difference between the second value and the first value, wherein at least a portion of the first parameters of the target area have a difference greater than a first preset threshold; and a processing module, configured to reduce the brightness of the color sub-pixels of the target area. The technical solution of this disclosure can eliminate image retention in display devices.

The utility model provides a shutter integrating LED illumination and light ray adjustment, and aims to overcome the defects in the prior art. The assembly comprises a shutter assembly and a controller, the shutter assembly comprises a window frame and a plurality of LED battens which are arranged in the window frame and can rotate through connecting structures, and lamp strips are integrated in the LED battens; the controller is arranged in the window frame and electrically connected with the light bars to control opening, closing and brightness. The bottom surface of the LED batten is a semitransparent light diffusion surface, the top surface of the LED batten is a non-transparent shading surface, the adjacent top surface and side surface are attached to form a shading layer when the LED batten is closed, and the bottom surface forms a semi-transparent layer to diffuse light into a room. The connecting structure is a fence, the LED batten is rotationally connected with the fence through a cylinder of the end cover shell, and the end cover shell is further provided with a slit for a wire to penetrate through. The controller is integrated with a capacitive touch switch, a wireless receiver and the like and can be controlled remotely. Light guide plates are arranged in the LED battens to evenly diffuse light and can be arranged horizontally or vertically. The multifunctional solar street lamp integrates sun shading, privacy protection, light adjustment and illumination, and is intelligent, convenient, efficient and energy-saving in illumination.

This invention relates to the field of lighting technology for highway tunnel lighting environment, specifically a lighting device for improving the lighting environment of highway tunnels; it includes: a light-shielding canopy installed on the rear side of the tunnel body, the light-shielding canopy being used to adjust the brightness of light entering the passage inside the canopy, and an adjustment mechanism installed on the light-shielding canopy; this invention can achieve rapid dynamic adjustment of the brightness of light inside the light-shielding canopy by quickly adjusting the gradient change of the overall light transmittance of the shielding film, thereby not only ensuring that the overall brightness inside the light-shielding canopy always transitions smoothly and stably with the lighting brightness inside the tunnel body, but also significantly improving the efficiency of dynamic adjustment of light brightness, while ensuring the stability and safety of the driver.

This invention discloses an energy-saving control method and system for a portable lamp, relating to the field of portable lighting equipment control technology. The invention utilizes closed-loop control with a target current as the setpoint, combined with periodic sampling of the actual current and PWM duty cycle adjustment, to transform the light source output from nonlinear disturbances on the power supply side into a controlled current tracking process, reducing unpredictable fluctuations in output caused by voltage changes. Simultaneously, battery state parameters and expected task duration are incorporated into the available energy calculation, forming a time-sharing energy budget. This expands the lighting output from single-moment brightness control to cross-time period energy consumption allocation control. The planned curve allocates the target current in the time dimension, forming an energy consumption rhythm that matches the task duration.

The invention provides a light emitting diode and a preparation method thereof. The light-emitting diode comprises an epitaxial structure, a connecting electrode, a first electrode and a second electrode, the epitaxial structure comprises a step structure, the step structure comprises a step top surface and a step bottom surface, and the step top surface is a light emitting surface of the epitaxial structure; the connecting electrode is located on the top face of the step, the first electrode is located on the side, away from the top face of the step, of the connecting electrode, the projection of the first electrode on the surface of the epitaxial structure is located in the projection of the connecting electrode on the surface of the epitaxial structure, the second electrode is located on the bottom face of the step, and the connecting electrode and the first electrode can absorb light emitted by the epitaxial structure. Therefore, the brightness of the light-emitting diode is reduced.

This application provides a method, system, electronic device, and storage medium for controlling light gradient. The method includes: receiving a light gradient command; parsing the command to obtain current red-green-blue component parameters and target red-green-blue component parameters; constructing actual brightness value change curves for each of the three components based on a preset minimum component change formula, the current red-green-blue component parameters, and the target red-green-blue component parameters; and controlling the light to gradually change from the current red-green-blue component parameters to the target red-green-blue component parameters according to the actual brightness value change curves. This application, by parsing the current and target red-green-blue component parameters in the light gradient command, constructing actual brightness value change curves for each component based on the preset minimum component change formula, and controlling the gradient accordingly, can specifically suppress unwanted white light during the gradient process, ensure color saturation, and achieve a smooth transition of light effects and color optimization.

This invention discloses a PUHD panoramic head-up display optical system with a high-reflectivity windshield. It includes an image source, from which light is projected onto the windshield. The windshield has a reflective film layer that enhances the light energy from the image source. It also has a black coating layer that enhances the contrast of the displayed image and absorbs light to prevent ghosting. The light emitted from the image source is reflected by the windshield and enters the human eye. The human eye perceives a virtual image located on a virtual image surface in front of the windshield. The windshield, the black coating layer, and the reflective film layer constitute a high-reflectivity windshield structure. This invention improves the reflectivity of the windshield display area by setting a reflective film layer in the black display area of ​​the black coating layer. This windshield can reflect more than 30% of the light energy from the backlight module screen (reflectivity is adjustable), increasing the brightness to the eye and significantly reducing the brightness, backlight power, and cost of the backlight module.

The invention provides a triazine compound and an organic electroluminescent device thereof, and relates to the technical field of organic electroluminescent materials. The invention aims to solve the technical problems that the existing electron transport material is low in mobility and the HOMO energy level of the hole blocking material is low, so that the luminous efficiency of the organic electroluminescent device is poor. According to the triazine compound provided by the invention, the triazine compound has relatively high electron mobility, good thermal stability and film-forming property, and a proper triplet state energy level. When the compound is used for functional layer materials such as an electron transport layer and a hole blocking layer of an organic electroluminescent device, driving voltage can be effectively reduced, the luminous efficiency of the device is improved, and the service life of the device is prolonged.

The application provides a vehicle atmosphere lamp control method and system, and relates to the technical field of intelligent cabin control.The method comprises the following steps: vehicle power-on initialization, reading vehicle interior atmosphere lamp initialization parameters, and outputting initialization brightness of the vehicle interior atmosphere lamp according to the initialization parameters; collecting vehicle gear signals and light state signals, obtaining current gear information and environment information of the vehicle; judging whether a driver input custom atmosphere lamp brightness reduction ratio instruction is received, generating vehicle interior atmosphere lamp brightness control decisions according to preset rules according to the current gear information and the environment information of the vehicle; and outputting target brightness of the vehicle interior atmosphere according to the vehicle interior atmosphere lamp brightness control decisions.The application realizes the synergistic linkage of individual preference, vehicle gear and ambient light, effectively reduces glare interference in the driving gear, keeps the cabin atmosphere in the parking gear, and takes into account driving safety and driving experience, and is suitable for intelligent control of atmosphere lamps of various intelligent vehicles.

The invention discloses a three-dimensional reconstruction method and system based on multi-view image fusion. The method comprises the following steps: carrying out adaptive segmentation on an obtained long image line by line to generate a segmentation mask; executing cylindrical surface expansion mapping on the target surface according to the mask segmentation result to obtain corrected plane textures; seamless fusion processing is carried out on the plane textures under the multiple visual angles to generate 360-degree panoramic textures; based on the pixel width W of the panoramic texture, performing scale transformation and displacement processing on the coordinates of the texture U; and mapping the panoramic texture subjected to scale transformation and displacement processing on the texture U coordinates to a three-dimensional cylindrical model to generate a high-fidelity three-dimensional reconstruction model of the target object. According to the method, the problems of insufficient image segmentation precision, incomplete cylinder perspective distortion correction, visual flaws of multi-view texture splicing and joints in three-dimensional model rendering in the three-dimensional reconstruction process of a slender cylindrical object (such as a steel wire rope) can be effectively solved.

This invention provides an optical cavity assembly suitable for zoned color adjustment, including a diffuser sheet with a regularly arranged array of black matrix units of equal size and spacing. A three-primary-color tunable light source within a backlight zone and the diffuser sheet with black matrix units constitute an optical cavity structure without a physical grid, allowing for constraint on the shape of the light spot. The optical cavity corresponds one-to-one with the backlight zone, and the size of the black matrix units on the diffuser sheet matches the size of the backlight zone. By evaluating the light emission effect of the diffuser sheet, the distance h between the diffuser sheet and the light source, the shape and structure of the black matrix units, and specific parameters within the optical cavity structure are adjusted and determined. Applying this technical solution can improve the uniformity of color and brightness within the backlight zone and reduce crosstalk in light color and brightness between backlight zones.

The utility model relates to the technical field of micro-displays, in particular to an OLED (Organic Light Emitting Diode) display structure, which comprises a light combination prism, the light combination prism comprises a light-in surface and a light-out surface; the light incident surface is connected with a single-color silicon-based OLED (Organic Light Emitting Diode) display; the light emitting surface is connected with a micro lens assembly; the micro-lens assembly is arranged on the light emitting surface of the light combining prism, the micro-lens assembly rotates the light path through the micro-lens array and increases the light extraction efficiency, so that the brightness of the OLED display is improved, the power consumption is reduced, and the structure can increase the direction of light reflected in the panel by adjusting the light path, so that the front brightness is improved, and the side brightness is reduced.

The present invention addresses the problem of providing a display device with which it is possible to brighten a decorative surface and to prevent a decrease in resolution or brightness of an aerial image. A solution is provided. A display device (100) is provided with a display (110), a first polarization beam splitter (120) that reflects light output from the display (110), a lambda / 4 wavelength plate (130), a retro-reflector (140), and a decorative sheet (150) that transmits light of an aerial image. And a second polarization beam splitter (160) that is disposed between the decorative sheet (150) and the first polarization beam splitter (120) and that aligns the transmission axis in the same direction as the direction in which the light (L2) of the aerial image is transmitted.

The application discloses a manufacturing method of an LED display panel, a display panel and electronic equipment. The manufacturing method of the LED display panel comprises the following steps: providing an LED display mother board, wherein the LED display mother board comprises a substrate and a plurality of LED luminophores arranged on the substrate, and the substrate drives the plurality of LED luminophores to emit light; manufacturing an encapsulation layer on the substrate, wherein the encapsulation layer covers the substrate and encapsulates the plurality of LED luminophores; and manufacturing a compensation film on the encapsulation layer, which is used for correcting the emitted light reflected from the substrate. The application can reduce the brightness unevenness and / or color unevenness of the LED display panel.

The invention discloses a display device. A display device according to the present disclosure may include: a substrate including a display area and a non-display area; at least two light emitting regions disposed on the display region and constituting one sub-pixel; the groove part is at least arranged on the outer side of each light emitting area; at least two contact regions disposed to be spaced apart from the respective light emitting regions; a first electrode disposed in each of the light emitting regions; a contact wiring portion provided in each of the contact areas; a light emitting layer disposed on the first electrode; and a second electrode disposed on the light emitting layer and separated in the two light emitting regions by the trench portion, and separated portions of the second electrode may be electrically connected to the contact wiring portions, respectively.

The invention discloses a display panel and a display device, the display panel comprises a plurality of pixel units, each pixel unit comprises a red sub-pixel unit, a green sub-pixel unit and a blue sub-pixel unit, the red sub-pixel unit comprises a first pixel electrode, the green sub-pixel unit comprises a second pixel electrode, and the blue sub-pixel unit comprises a third pixel electrode. A first included angle is formed between a horizontal axis trunk electrode and a branch electrode of the first pixel electrode; each green sub-pixel unit comprises a second pixel electrode, and a second included angle is formed between a horizontal axis trunk electrode and a branch electrode of each second pixel electrode; each blue sub-pixel unit comprises a third pixel electrode, and a third included angle is formed between a horizontal axis trunk electrode and a branch electrode of each third pixel electrode; wherein the third included angle is smaller than the first included angle and the second included angle. Through the design, the phenomena of bluish color when a white picture is displayed and skin color whitening when a person is displayed under a side view angle can be improved.

The present application relates to the technical field of image processing and analysis, and further relates to a canyon watershed vegetation community and coverage intelligent analysis method based on multispectrum, comprising the following steps: step S1: acquiring active NIR light supplement multispectrum images and natural light multispectrum images of a low-altitude key area and recording unified time stamps and pose records; step S2: generating a shadow candidate area mask based on the natural light registration images, generating a shadow boundary band and a reference ring band, forming a shadow invariant representation graph through a cancellation gate control editor, and obtaining a vegetation community category grid and a coverage grid through a vegetation community decoder and a coverage decoder; step S3: performing route inlay on the vegetation community category grid and the coverage grid of the low-altitude key area, and outputting a canyon watershed vegetation community graph and a canyon watershed coverage graph. The present application can effectively weaken the interference of shadows on multispectrum features and significantly improve the accuracy of vegetation community recognition in complex canyon environments.