51results about How to "Improve backlight effect" patented technology

The invention discloses a backlight module and a light-emitting diode (LED) display. The backlight module comprises a light source module with a luminous surface and a back panel, a reflecting piece and a light guide plate which are sequentially stacked, wherein one end of the light guide plate bends and extends to the back panel direction to form a bending part of which the outer surface is not transparent; an end face at the tail end of the bending part is a light entrance surface; and the light source module is fixed on the edge of the back panel, and the luminous surface of the light source module is opposite to the light entrance surface. According to the backlight module, because the light source module is positioned on the outer side of the back panel, the generated heat is directly dispersed outwards and is not collected inside the back panel; and therefore, the radiating efficiency is improved, and all problems caused by bad radiation of the backlight module in the traditional technology are solved; and meanwhile, the light source emitted from the light source module does not directly enter the side face of the light guide plate and enters the light entrance surface of the bending part, after the light is reflected and fully mixed inside the bending part, and the light source enters the backlight module; and therefore, the dark space inside the backlight module is eliminated, and the backlight effect is improved.

The invention discloses a refrigerator door body and a refrigerator with the refrigerator door body. The refrigerator door body includes: a door frame, a foaming space is defined in the door frame, and the door frame includes a left frame, a right frame, a front door panel, a rear door panel, a top end cover and a bottom end cover, and the front door panel is A glass plate, a recessed portion is provided on the upper surface of the top end cover; a lamp assembly, the lamp assembly is arranged in the recessed portion; and a light guide plate, the light guide plate is attached to the rear surface of the glass plate and adjacent to the light assembly so as to guide the light emitted by the light assembly. According to the refrigerator door body of the embodiment of the present invention, the background light has a large luminous range, and the overall backlight effect is good, which can improve the overall appearance of the refrigerator, and is convenient for users to use accurately at night without turning on the light. In addition, the structure of the door body is simple and the installation is convenient.

A keypad panel assembly having a laterally-illuminated keypad surface is arranged on an electronic device. The keypad panel includes a light-guiding plate and a panel. The light-guiding plate has a carrier thereon. One side surface of the carrier is provided with a plurality of protruding strips. Each protruding strip is provided with a plurality of light-guiding particles at positions corresponding to the other side surface of the carrier. The top surface of the protruding strip is provided with a reflective layer. The panel is arranged on one side surface of the carrier, and is provided thereon with a plurality of rectangular keypads. One side surface of each keypad is provided with an icon, and a plurality of hollowed portions is provided between each keypad and the panel. Each hollowed portion encloses a rectangular shape and corresponds to the protruding strip of the carrier. After the protruding strip passes through the hollowed portion, the height of the protruding strip is larger than those of the keypad and the icon. After the light generated by a backlight source of the electronic device is introduced from one side of the light-guiding plate, the light-guiding particles focus the light on the protruding strip. Then, the light illuminates the keypad surface from both sides of the protruding strip, so that a user can see the icon displayed on the keypad surface clearly.

The invention relates to a keyboard comprising a plurality of keys and a light source module, wherein any one key comprises a membrane switch structure, a scissors-type support member, a light accumulation and control elastic piece and a key cap; the light accumulation and control elastic piece is arranged in the space of the scissors-type support member, and the material of the light accumulation and control elastic piece includes a light accumulation material so as to achieve light accumulation function; after a power supply of a luminous source of the light source module is turned off, the afterglow of the light accumulation and control elastic piece can persistently give out light to illuminate the key cap.

The invention provides a backlight module. The backlight module comprises a light source, a substrate, a quantum dot film formed on the substrate and a cover plate covering the quantum dot film, as well as a sealing layer surrounding the quantum dot film; the sealing layer is connected with the substrate and the cover plate so that the quantum dot film can be sealed between the substrate and the cover plate. As the quantum dot film is sealed between the substrate and the cover plate by the sealing layer, the backlight effect of the backlight module is improved. The invention also discloses a manufacturing method of the backlight module.

The invention relates to a method for electroplating metal on the surface of an insulating base material. The method comprises the following steps that the surface of the insulating base material makes contact with a water-soluble anionic compound, so that a modified surface is produced; the modified surface makes contact with an aqueous solution containing permanganate ions, so that a manganese dioxide adsorption layer is formed on the modified surface; a conducting polymer layer is formed on the surface of the manganese dioxide adsorption layer; and electroplating is carried out on the surface of the conducting polymer layer, and thus a metal layer is formed. According to the method, the anionic compound is deposited on the surface of the insulating base material so as to form a coatinglayer tightly combined with the surface of the base material, after the modification and adsorption, an even film with a certain thickness is formed on the surface, thus, under the metal electroplating liquid and electroplating condition are the same, the deep plating capacity and dispersing capacity of the electroplating liquid can be greatly improved, the obtained metal plating layer has the characteristics of being flat, even and good in backlighting effect, and the hole breakout phenomenon and the phenomenon that certain parts of the electroplating metal layer in holes are too thin are avoided.

The invention discloses an LED light source back light module and a display device. The LED light source back light module comprises a circuit board, at least one LED light and lenses corresponding to the LED lights one by one and covering the LED lights arranged on the circuit board; the LED light source back light module further comprises a light conversion medium layer for converting monochromatic light generated by the LED lights into white light, and the light conversion medium layer is located between the lenses and the circuit board and arranged in the surrounding area of the LED lights. Through significantly improving the local back light effect of the area below the lenses and the surrounding area of the LED lights, the LED light source back light module improves the brightness of the area above the lenses and the color of the area, raises substantially the overall backlight effect, and improves the overall visual experience of television and the like.

The invention discloses a backlight module, a display device and a driving method thereof. The backlight module comprises a substrate, a plurality of light emitting modules arranged at one side of thesubstrate, a light exiting layer arranged at one side, away from the substrate, of each light emitting module, and a plurality of backlight driving modules. An overlapped area exists between the vertical projection of each first light emitting zone on the substrate and the vertical projection of each first light exit area on the substrate; an overlapped area exists between the vertical projectionof each second light emitting zone on the substrate and the vertical projection of each second light exit area on the substrate; an overlapped area exists between the vertical projection of each third light emitting zone on the substrate and the vertical projection of each third light exit area on the substrate. Light emitted from the first light exit area is red light; light emitted from the second light exit area is green light; and light emitted from the third light exit area is blue light. Each of the plurality of backlight driving modules is connected with at least one light emitting module. With the backlight module, the backlight effect of the backlight module is improved; and the power consumption of the backlight module is reduced.

The invention provides a backlight source and an assembling method thereof, a display panel and a display device. The backlight source comprises a light source, a back plate and light guide plates arranged above the back plate, wherein the light source comprises light-emitting elements; accommodating structures are arranged on the edge areas of the light guide plates; the light-emitting elements are accommodated in the accommodating structures. In the light source, the accommodating structures are arranged on the edge areas of the light guide plates for accommodating the light-emitting elements, and gaps between the light-emitting elements and the light guide plates are avoided, so that most light rays emitted by the light-emitting elements can enter the light guide plates, the utilization ratio of the light rays is increased, and the backlight effect of the backlight source is improved. Meanwhile, the light source can be assembled more conveniently through the light guide plates with the structures, so that the assembling process of the backlight source is simplified greatly, and the rejection ratio in the assembling process of the backlight source is greatly lowered.

The invention provides a backlight module and display equipment, and the backlight module is characterized by comprising a Mini LED light board and a light guide body disposed above the Mini LED lightboard, wherein the cross section of the light guide body is an inverted trapezoid, microstructure arrays are disposed on the side wall and / or the bottom surface of the light guide body, and a reflective film is pasted on the side wall surface of the light guide body. Since the backlight module provided by the invention uses the light guide body with an inverted trapezoidal cross section for lightguidance, the inverted trapezoidal light guide body can convert the point light sources emitted by the Mini LED into a surface light source. The bottom surface and / or side wall of the light guide body is arranged with microstructure arrays, which can can enhance the light scattering inside the light guide body such that the light inside the light guide body is more emitted from the top surface. The backlight assembly provided by the invention can also form a whole large-sized light emitting surface by splicing a plurality of light guide bodies, having more uniform light output and better backlight effect.

The invention relates to a method for plating a metal on the surface of an insulating base material. The method comprises the following steps: alternately touching the surface of the insulating base material with polycations and polyanions to produce a modified surface; touching the modified surface with an aqueous solution containing permanganate ions to form a manganese dioxide adsorption layeron the modified surface; forming a conductive polymer layer on the surface of the manganese dioxide adsorption layer; and performing plating on the surface of the conductive polymer layer to form a metal layer. According to the method, by means of the alternate deposition of the polycations and polyanions on the surface of the insulating base material to form a firmly combined coating layer withthe surface of the base material, after a thin film with a certain thickness is uniformly formed on the surface by means of the modification and adsorption, under the same metal plating solution and plating conditions, the deep plating ability and the dispersing ability of the plating solution are greatly improved, the obtained metal plating layer has the characteristics of flatness, uniformity and good backlight effect, and the phenomena of hole breakage and that the Plating metal layer at a certain site in the hole is too thin are avoided.

The invention provides a backlight source and a display device. The backlight source comprises a light source, a back plate and a light guide plate, wherein the back plate comprises a bottom plate and a side frame arranged on the edge of the bottom plate in a surrounding way, the light guide plate is arranged above the bottom plate, the light source is arranged on the side frame, in addition, the light source is opposite to the edge end surface of the light guide plate, the light source comprises an illumination unit and a lamp shade arranged outside the illumination unit in a covering way, and light rays given out from the illumination unit can be uniform through the lamp shade. The backlight source has the advantages that the lamp shade is arranged outside the illumination unit in the covering way, and the lamp shade can realize the uniformization treatment on the light rays given out by the illumination unit, so that the light rays given out by the illumination unit can become more uniform, the nonuniform brightness phenomenon (i.e., the Hotspot firefly phenomenon) of the light rays given out by the illumination unit can be avoided, and further, the backlight effect of the backlight source is improved.

The invention relates to the field of chemical plating on a non-conductive substrate plate, in particular to copper deposition pretreatment liquid and a pretreatment method thereof. The copper deposition pretreatment liquid comprises 0.01-100 g / L of a cationic polymer; and the polymer comprises the polymer which is formed by polymerizing at least one of epoxy group, alkenyl, reactive hydrogen and benzene ring with a heterocyclic nitrogen-containing compound, quaternizing and cation treatment. After the copper deposition pretreatment liquid is used, the growth state of copper in a hole is good, no copper nodule is generated, the quality of a plating layer is high, the adhesion performance between the plating layer and a resin substrate is excellent, and meanwhile, the backlight grade reaches the grade 9 or above and even the grade 10.

The invention discloses a direct type backlight module group and a liquid crystal display device. The direct type backlight module group comprises a bottom frame, a light source, a diffusion plate and a plurality of support columns, wherein the light source is arranged on the bottom frame; the diffusion plate is arranged above the light source; the support columns are arranged on the bottom frame and used for supporting the diffusion plate; and at least one support column is made of a first light transmission material or formed by combining a second light transmission material and a light shading material which are connected up and down. Through the adoption of the manner, light emitted by the light source can pass through the support columns when being irritated on the support columns, thereby preventing support column shade from occurring and improving the backlight effect and the display effect.

The invention provides a backlight module which is provided with a middle area and a frame area. The backlight module comprises a back plate, a light bar in the frame area and comprising a circuit substrate and a lamp bead electrically connected, a reflective sheet arranged on the back plate, and a light guide plate arranged on one side of the reflective sheet away from the back plate. The reflective sheet and the light guide plate extend from the middle area to the frame area; the circuit substrate is positioned on one side of the light guide plate deviating from the reflective sheet; the light guide plate is uniform in thickness; the light-emitting surface of the lamp bead is opposite to the edge end surface of the light guide plate; the part, corresponding to the frame area, of the back plate is recessed in the direction away from the reflective sheet to form a first groove. And the orthographic projection of the reflective sheet on the back plate is not overlapped with the orthographic projection of the lamp bead on the back plate. According to the backlight module, the ultra-narrow frame can be achieved, the ultra-thin and low-cost effects can be achieved, meanwhile, the problems of hotspot and bright bands on the light-emitting face sides of the lamp beads can be solved, and the backlight effect of the backlight module is improved.

The invention provides a backlight processing system, a device and a method, a backlight driver and a storage medium. The backlight processing system comprises a controller, the backlight driver and abacklight module, the controller is connected with the backlight driver for acquiring a display image, and sending a backlight image to the backlight driver according to the display image, wherein the backlight driver is connected with the backlight module, the backlight module comprises a plurality of LEDs, and the backlight driver is used for inserting an enhanced image used for enhancing the backlight effect between two adjacent frames of backlight images and controlling the brightness of the plurality of LEDs according to the backlight images and the enhanced image. According to the backlight processing system, the device and the method, the backlight driver and the storage medium provided by the embodiment of the invention, the data volume transmitted between the controller and the backlight driver can be effectively reduced, the burden of the controller is reduced, and the backlight effect is improved.

The invention provides a nickel-free chemical copper plating solution and a preparation method thereof. The nickel-free chemical copper plating solution is prepared from the following materials according to mass concentration: 1-5g / L of copper sulfate, 0.5-2g / L of reducing agents, 3-8g / L of complexing agents and 0.001-0.01g / L of stabilizers. The nickel-free chemical copper plating solution has a stable deposition rate of 0.3-0.6 microns / cycle; the plating layer has excellent physical property; the nickel-free chemical copper plating solution is high in stability and free of sediment after the plating solution is stored for one week, is applicable to different substrate materials and comprises ordinary FR4 and High Tg materials and ceramic materials; the backlight effect of the substrates plated with copper is excellent; the backlight level reaches the ninth grade or higher.

The invention discloses a backlight device of a touch-type remote controller. The backlight device comprises a PCB (2), and light emitting diodes (3), wherein the front face of the PCB (2) is provided with at least one group of touch-type keys (4). The backlight device of the touch-type remote controller is characterized in that: the PCB (2) below each touch-type key (4) of each group is provided with transmittance holes (5); on the back face of the PCB (2), each group of transmittance holes (5) is provided with a light guide groove (1); and the two ends of the light guide groove (1) are respectively provided with the light emitting diodes (3). By making use of the characteristic that the light guide groove can make light distribute uniformly, the backlight device of the touch-type remote controller makes use of fewer light emitting diodes to achieve a better backlight effect, and can achieve the beneficial effects of cost conversation, low power consumption and stable circuit when achieving the technical effect of effective backlight.

The invention relates to a light module comprising a backlit surface element, a light source flatly applied to said surface element or connected thereto and to a light system comprising a plurality of said light modules.

The invention belongs to the technical field of machinery manufacturing equipment and in particular relates to a backlight adjusting mechanism. The backlight adjusting mechanism comprises a frame andan LED backlight arranged in the frame, wherein backlight glass is arranged above the LED backlight, a landing leg and a lifting cylinder are arranged at the bottom of the frame, a waist type hole isformed in the frame, the backlight glass is mounted inside the waist type hole in the frame by virtue of a height adjusting bolt, and a position of the backlight glass in the frame can be adjusted upand down in a range of the waist type hole; and a heat sink is also arranged at the bottom of the frame. The backlight adjusting mechanism provided by the invention is simple and stable in structure,the best backlight effect is achieved by virtue of height adjustment of the backlight glass, operation is convenient, a cooling fan is arranged at the bottom of the frame, and heat dissipation effectis good.

The invention relates to a keyboard with hollowed keys and elastic silicone gel bodies. The keyboard is composed of an integrated key assembly, a key square bracket, a printed circuit film under the integrated key assembly, the elastic silicone gel bodies which are fixed on printed circuit film switches, and a keyboard chassis which supports the printed circuit film from below; according to the integrated key assembly, a plurality of hard plastic key surfaces and a plurality of soft plastic connecting bodies are molded into a plurality of cap type structures through two-step hard plastic and soft plastic injection molding; a soft plastic flat surface layer and a soft plastic side surface layer are molded into the soft plastic connecting bodies through one-step soft plastic injection molding; and the soft plastic side surface layer is of a hollowed structure and is composed of at least three soft plastic support connecting portions which are arranged at intervals to form a planar structure and hollowed portions which are arranged between the soft plastic support connecting portions. With the above structure adopted, the keyboard of the invention has the advantages of high elasticity, high light transmittance, excellent heat dissipation performance, low cost, simple assembly and good pressing hand feel.

The invention discloses a collimating backlight structure, a display device thereof, a double-screen display device, and a multi-screen display device. The collimating backlight structure comprises amicrolens array and a light source, wherein the light source is arranged on one side of the microlens array, and is used for emitting an emitted light from one side of the microlens array and enablingthe light to penetrate through the microlens array; and multiple light through holes are formed between the light source and the microlens array, are arranged corresponding to microlenses of the microlens array one to one, and are located on focuses of the microlenses of the microlens array. According to the collimating backlight structure, the emitted backlight is a collimating light, so that abacklight effect of the collimating backlight structure is improved.

The invention discloses a button panel, which is used for installing buttons. The button panel is provided with elastic parts used for supporting buttons, wherein the elastic parts are arranged on positions corresponding to the buttons on the button panel and form an integral structure with the button panel; one end of each elastic part is connected with the button panel, and the other end is suspended; and the surface, which faces the button, of each elastic part is extruded out of the surface of the button panel. The invention also discloses a switch panel, which comprises a control module,a panel shell, a PCB (Printed Circuit Board), the button panel and a button capable of being connected to the button panel in a pressing way, wherein the PCB is arranged in the panel shell and is electrically connected with the control module out of the panel shell; the PCB is provided with a signal trigger point; the inner side end surface of the button is provided with a signal trigger part on aposition corresponding to the signal trigger point; and the button panel is the above button panel. The button panel is provided with a trough to form the elastic part, and therefore, a button resetting function can be realized without additional elastic sheets.

The present invention provides a backlight structure of a fingerprint module and an electronic device. The backlight structure comprises a cover plate, a light source device covered below the first surface of the cover plate, and a fingerprint module configured to pass through the cover plate and exposed to the second surface of the cover plate. The first surface and the second surface are opposite in orientation. The edge of the cover plate, which surrounds the fingerprint module, is provided with a first region. The first region is a light-transmitting region. The cover plate below the first region is provided with a light guiding device used for guiding the light emitted from the light source device. The light guiding device is arranged at the outer circumference of the fingerprint module. The projection area of the light guiding device on the cover plate covers the first region, so that the guided light is enabled to pass through the first region to be outputted to the second surface of the cover plate. Therefore, the above structure is good in backlight effect, and the product quality is improved. The user experience is also improved.

The invention discloses a light guide plate which comprises incident faces on the two sides, an emergent face on the upper surface and a scattering face provided with scattering net points and arranged on the lower surface. The scattering face is recessed towards the emergent face. The invention further provides a display module which comprises a display panel and a backlight unit. The backlight unit comprises the light guide plate and LED assemblies arranged on the two sides of the light guide plate. By the adoption of the two-side incident structure, and meanwhile, the scattering face at the bottom is recessed towards the emergent face, backlight evenness of the light guide plate is well improved, and the backlight effect can be improved.

The invention relates to an optical film processing method for a backlight source, the backlight source and a mobile terminal, and the method comprises the steps: pre-storing the punching parameters of at least one type of optical film in punching equipment, wherein the punching parameters comprise a punching position and a punching length; conveying the optical film to be processed to a specifiedposition, and fixing the optical film relative to the body of the punching equipment; and the punching equipment carries out punching treatment on the to-be-treated optical film according to the typeof the optical film and the pre-stored punching parameters. According to the method, punching treatment is performed on at least one optical film, when the punched optical film is heated to expand, the deformation is stopped at the punching-off position, finally, the punching-off position serves as a parting line, the part, close to the LED lamp strip, of the optical film deforms, the part, awayfrom the LED lamp strip, of the optical film does not deform or only slightly deforms, and thhus the wrinkling phenomenon of the optical film is improved and the backlight effect of the backlight source is improved.

The invention provides a backlight device for a portable computer keyboard, the keyboard backlight device heating component arranged in the portable computer to the side, the backlight assembly includes a light guide structure reflecting layer, and a heat radiating layer, the light guide structure has a smooth surface, the surface is smooth keyboard settings, keyboard is used to connect the components, the reflective layer is arranged on the light guide structure of the bottom layer, the heat radiating layer is arranged on the reflecting layer below the lower surface of the heat radiating layer for heating components corresponding to the surface, when the keyboard backlight device arranged in the portable computer, the the heat radiating layer component corresponding to the surface heat conduction to the heating component, the heating component through the heat dissipating layer and the heat radiating effect, to improve the portable computer keyboard backlight device.

The invention provides an ion palladium activating solution for horizontal electroless plating copper. Each liter of the ion palladium activating solution comprises the following components of 8-12 mgof palladium sulfate, 0.1-1 g of complexing agent, 10-20 mg of surfactant, 20-25 mL of pH value regulator, 7-10 mg of stabilizer, 2-3 mg of polyamid-amine resin -glycine compound and the balance deionized water. The invention also provides a preparation method of the ionic palladium activating solution. The ion palladium activating solution for horizontal electroless plating copper has good stability, horizontal electroless plating copper backlight effect and electroless plating copper layer adhesive force.

The invention belongs to the technical field of automotive interior parts and aims to solve the problem that the lighting lamps of the prior sun visor vanity mirrors easily make human eyes feel uncomfortable. For this reason, the present invention provides a sun visor for a vehicle, the sun visor includes a sun visor body and a vanity mirror assembly embedded in the sun visor body, the vanity mirror assembly includes a light source, a vanity mirror and a vanity mirror for carrying the vanity mirror The base of the mirror, the vanity mirror base is provided with a light source installation position, and the light source installation position is set so that the light emitted by the light source can be emitted after being reflected by the sun visor body. In the present invention, a light source installation position is provided on the base of the sun visor vanity mirror. The light source installation position allows the light emitted by the light source to be reflected by the sun visor body and then emitted to achieve the effect of backlight, so that the light irradiated on the vanity mirror and into the human eye It is softer, reduces the light intensity entering the human eye, reduces the direct stimulation to the human eye, improves the comfort of the human eye, and thus improves the user experience.