227results about How to "Low flatness" patented technology

A pellicle is provided to one end surface of end surfaces of a frame. Another end surface of the end surfaces of the frame has an area that opposes a substrate. A configuration is adopted that prevents the deformation of the one end surface of the frame and the shape of the opposing area on the other end surface from affecting one another.

An active matrix display comprises a circuitry layer and a device layer having a planarizing layer therebetween on the glass substrate. The circuitry layer has pixel circuits defining pixel units and the device layer has organic EL devices defining the pixel units. The organic EL devices are electrically connected with respective pixel circuits by contacts. The contacts are each positioned at the exterior of the emitting area, or the luminescent layer including an organic layer, of each pixel unit in the device layer.

The invention provides a polyethylene composition and a preparation method thereof. The polyethylene composition comprises a polyethylene blend, inorganic filler, a coupling agent, a dispersant and fully-vulcanized powder rubber and is used for preparing film materials such as waterproof gas-permeable film. The polyethylene blend comprises three linear low-density polyethylene with different melt indexes so as to ensure the performance of the waterproof gas-permeable film and the nano-scale fully-vulcanized powder rubber can have the effect of promoting the dispersion of the inorganic filler. The waterproof gas-permeable film is prepared from the polyethylene composition by casting and stretching, under the condition that the mechanical strength is ensured to be not reduced, the processing performance of the gas-permeable film can be significantly improved, the adjustable ranges of physical performance and permeability are large and the gas-permeable film has the advantages of wider adaptability, uniform micropores, low cost and high cost-performance ratio.

An in-vehicle display apparatus in a vehicle includes a region recognition circuit and an image output circuit. The region recognition circuit recognizes a target plane region in scenery ahead of the vehicle; the target plane region corresponds to a continuous region having (i) a flatness equal to or greater than a predetermined threshold value and (ii) an area size equal to or greater than a predetermined threshold value. The image output circuit displays a driving information picture as a virtual image using a liquid crystal panel such that a driver of the vehicle views the virtual image in the target plane region within a displayable region through a windshield of the vehicle.

The invention belongs to the technical field of building construction and in particular relates to a fully-prefabricated structure and a construction method thereof. The fully-prefabricated structure comprises a top plate, peripheral wall boards and base plate concrete precast members, wherein an assembly clearance joint is preserved between every two adjacent concrete prefabricated members; joints connected with the concrete prefabricated members in parallel adopt L-shaped stagger-jointed lapping; in addition, the prefabricated wall panels are connected by embedded split bolts or connected by grouting and casting of reserved steel bars and matched holes; vertical joints between the prefabricated wall panels and the top plate and the base plate adopt grouting and casting connection through the reserved steel bars and the matched holes; water-expandable rubber water-stop strips are arranged in the reserved assembly clearance joints and are grouted with cement-based grouting materials; sealants are arranged on openings in two sides of the reserved assembly clearance joints. The fully-prefabricated structure and the construction method thereof disclosed by the invention have the advantages that the construction speed is high, the quality is easy to control, and materials such as a template scaffold are saved; the members are good in appearance quality and durability; field wet operation is reduced, so that environment friendliness is facilitated; the fully-prefabricated structure and the construction method thereof are suitable for construction of single-storey assembled buildings and multi-storey assembled buildings having no seismic requirements.

The invention discloses a focusing module and an assembly process thereof. The focusing module comprises a lens base component, a lens cone component, an image sensor component and a fine-tuning component, wherein an image sensor in the image sensor component is clung to the upper surface of a circuit board, the lens cone component is fixed on the lens base component, the fine-tuning component is located between the lens base component and the lens cone component, the lens base component is mounted on the image sensor component, and the lens cone component comprises a lens cone internally provided with a first lens. According to the invention, the lens base is directly mounted on the image sensor, requirements on the flatness and centrality of the circuit board are lowered, and meanwhile, owing to the added fine-tuning component, the focusing is convenient, the assembly time is saved, the production capacity is effectively improved, and mass production is facilitated.

The present invention relates generally to new planar substrates that are metallized and embedded with material to minimize the camber and method thereof. The invention also relates to the fabrication of multilayer ceramic (MLC) substrates for packaging electronic devices. More particularly, this invention relates to the fabrication of thin and small ceramic substrates which do not need post-sintering processing to control the flatness of the sintered product.

The invention discloses a special lifting machine for lifting wind power generation equipment, which has the characteristics of low production cost, smooth operation of the whole machine, low requirements for roads and high field transferring speed. The lifting machine mainly comprises a running chassis, a tower body, a lifting arm, an amplitude variation mechanism of a swinging arm and an electrical control unit, wherein the running chassis comprises a lower frame (A), a slewing mechanism (I) and an upper frame (20), wherein the upper frame (20) is connected with the lower frame (A) through the slewing mechanism (I); and an operating room (13), a balancing weight (19), a power engine (17) and a winch are arranged on the upper frame (20). The invention aims to solve the problems of the lifting equipment required for installation of the wind power equipment; and the installation of the wind power equipment requires that the lifting capacity of the lifting equipment meets the requirement, the lifting height of the lifting equipment meets the requirement, and the lifting equipment needs to be capable of quickly transferring fields. The lifting machine can also be used for lifting in other building industries.

The invention provides an interactive projection system, which includes a projection module for projecting a projection picture, a projection screen for displaying the projection picture, a light curtain projection module for projecting a light curtain between the projection module and the projection screen, a touch control sensing module coupled with projection screen for sensing whether the projection screen is touched, and a light sensing module for sensing whether a shielding spot exists on the light curtain and further obtaining corresponding coordinate positions of the shielding spot on the projection picture. When the projection screen is touched, the touch control sensing module sends a first trigger signal to the light curtain projection module to enable the light curtain projection module to project the light curtain; when the light sensing module senses that the touch position on the projection screen corresponds to the shielding spot on the light curtain, the light sensing module sends out a second trigger signal to the projection module to enable the projection module to execute touch control operation corresponding to the coordinate positions on the projection picture; and moreover, when the projection screen is not touched, the light curtain is not formed. With adoption of the interactive projection system, the influence on the touch control sensitivity of the whole system by the distance from the light curtain to the projection screen is effectively reduced.

An air bearing assembly includes: an upper portion having a plurality of air supply and vacuum holes therethrough; a lower portion; and a plurality of spacers disposed between and maintaining the upper and lower portions in spaced relation, wherein a density of the air supply and vacuum holes is high enough to provide an air bearing for a substrate, but low enough such that at least one of: (i) a sufficient number of the spacers are employed, and (ii) the spacers are located in close enough proximity, to maintain a substantially uniform flatness of the upper portion relative to the lower portion.

A method of processing a semiconductor wafer sliced from a single-crystal ingot includes lapping front and back surfaces of the wafer to reduce the thickness of the wafer and to improve the flatness of the wafer. The front surface is subjected to fine grinding to reduce the damage on the front surface while leaving damage on the back surface intact. The front and back surfaces are simultaneously polished to improve the flatness of the wafer and to reduce wafer damage on the front and back surfaces. The wafer damage remaining on the back surface is greater than the wafer damage on the front surface. The wafer damage remaining on the back surface facilitates gettering.

The invention relates to the technical field of electric-heat conversion, in particular to an electric heating board manufactured by nesting heating elements in foamed aluminum. Multifunctional foamed aluminum structural materials are adopted to replace various and multi-layer materials having different functions and composited on a heating element, the heating elements are nested in the foamed aluminum structural materials, and therefore various defects existing in an existing electric heating board are eliminated. The foamed aluminum is composed of a porous metallic aluminum framework, an aluminum oxide film arranged on the outer surface of the framework in a covering mode and air bubbles inside the framework, integrates the superior performance of metallic aluminum, the superior performance of nonmetallic aluminum oxide and the superior performance of air, has the functional and structural advantages of being light, multifunctional, environmentally friendly and designable, and is an ideal engineering material for improving the cost performance of electric heating boards.

The invention discloses a multifunctional somatological input device. The multifunctional somatological input device comprises a fingertip sleeve which can be placed on a finger of a person in a sleeved mode, a bottom touch module is arranged on the part, making contact with the finger pulp of the finger, of the fingertip sleeve, a top touch module is arranged at the top of the fingertip sleeve, both the bottom touch module and the top touch module are connected with a processing module arranged inside the fingertip sleeve, the processing module is connected with a motion sensor and a sending module, and the functions of clicking, double clicking, cursor moving, hand inputting, touch screen simulating and the like can be realized. The multifunctional somatological input device is convenient to use, few in mis-operation and complete in function.

The invention relates to the technical field of display, and discloses a display panel, a preparation method thereof and a display device. The display panel comprises a substrate, a thin film transistor array and a photosensitive diode array located on the substrate in sequence, and also comprises a first passivation layer, a first planarization layer and a second passivation layer located betweenthe thin film transistor array and the photosensitive diode array and sequentially arranged in the direction from the thin film transistor array to the photosensitive diode array. Via holes are formed in the first passivation layer, the first planarization layer and the second passivation layer, and the photosensitive diode array is electrically connected with the thin film transistor array through the via holes. According to the display panel, the photosensitive diode array structure layer is integrated, the fingerprint induction and recognition functions of the display area can be achieved,the dark-state current of the photosensitive diode structure is low, the contrast ratio of fingerprint imaging is high, and imaging is clear.

The present invention discloses a calcium carbonate biological mineralizing and strengthening method for calcium carbonate stone cultural relic. The technical process of the present invention is that: the solvent is first used for cleaning the surface of the stone cultural relic; and then the present invention uses a compound solution with biological amphipathic function as a organic molding board to pretreat the surface of the stone cultural relic and to make the surface of the stone add with a functional group unit; the supersaturation solution of calcium carbonate is used for making with infiltration treatment; under the control of the functional group unit, the calcium carbonate is inducted to grow into core directional crystal; the rocked and incompact grain can be connected so as to make the strengthened protection for the surface of the stone material. The present invention has the advantages of similar property between the protective material and the base material, much better compatibility; the present invention does not change the appearance, color and hand feeling of the protected stone cultural relic; and the compression strength, water resistance, acidity resistance and soiling resistance are improved and enhanced greatly.

The invention discloses a method for preparing building and packing templates with waste building templates as raw materials, and relates to the field of production processes of building wood templates. The method comprises waste template recovery, impurity removal, drying, core veneer processing, middle leather board processing, gluing, hot pressing, ash replenishing, sanding, wrapper gluing, cold pressing, hot pressing, edge sawing, polishing, final molding, inspection and delivery. The method effectively recovers, shapes and reuses waste building wood templates, so that the limited wood resource is saved, and the enterprise production cost is reduced to the greatest extent; and the method produces the building wood templates with high strength, high toughness, good levelness, light weight, no deformation, high stability, long service life and high waterproof cost performance, saves the resource for the society, is free of environmental pollution, and facilitates environmental protection.

The invention discloses a preparation method of an integral-type vacuum heat insulation and temperature preservation plate, and belongs to the technical field of an outer temperature preservation material for building outer walls. The technical scheme to be solved is that a preparation method of a vacuum heat insulation and temperature preservation plate which has a plate-type core material, has good integrity, is low in air leakage rate, and prevents cold and hot bridge is provided. According to the technical scheme, the preparation method comprises the following steps of: step one, manufacturing a core material plate; step two, loading the core material plate, and step three, vacuumizing and packaging. According to the invention, different from the prior art that the core material is in a powder shape, the plate provided by the invention has the advantages that an inorganic material is synthesized into the plate material, and a special bonding material is adopted for bonding the core material and the packaging layer together, thus the temperature preservation plate has the integrity; the core material plate is adopted and drilled for holding an air absorption agent, the quantity and position are distributed scientifically, and the long-lasting vacuum degree is ensured; and the air leakage rate is lowered by a dual-seal mode.

A valve body main unit has a circular step surface facing a circular valve seat surface of a valve chamber formed on a terminal end part of a fuel supply path to a fuel tank and a circular groove with one groove wall extending from the circular step surface, and is normally urged in a direction of closing an inflow port surrounded by the circular valve seat surface. The valve body main unit also has an elastic seal body with a ring shape inserted into the circular groove of the valve body main unit. The elastic seal body has a circular fin-shaped part projecting from an outer perimeter part and pushed against the circular valve seat surface by the urging of the valve body main unit to close the valve.

The invention discloses a stable tunable multi-wavelength highly Er-doped fiber laser which can output stable multi-wavelength with flat power at the room temperature. The multi-wavelength laser structurally comprises a pumped source 1, a wavelength division multiplexer WDM2, a highly Er-doped fiber HEDF 3, a polarization isolator PD-ISO4, a polarization maintaining fiber PMF5, a polarization controller PC6, a 3dB optical coupler 7, a first single-mode fiber SMF8, a second single-mode fiber SMF9 and an optical coupler C10 in the splitting ratio of 90:10. The wavelength division multiplexer couples 980nm of pumped laser into the Er-doped fiber, the laser enters a comb filter composed of the polarization isolator, the polarization maintaining fiber and the polarization controller, the optical coupler returns 90% of multi-wavelength laser generated in a loop to the loop and outputs 10% of the same, the laser enters a nonlinear fiber annular mirror via the 3dB optical coupler, and light after interference enters the first single-mode fiber, and then returns to the wavelength division multiplexer to form an annular cavity.

The invention discloses a novel bipolar plate distribution head of a proton exchange membrane fuel cell, which comprises an active area and a flow guide area, wherein one end of the flow guide area isconnected with a gas inlet and outlet; the flow guide area comprises a plurality of flow guide islands which are discontinuously distributed in rows and lines, and the flow guide islands are of a rounded rectangular convex structure and are integrally distributed in a fan shape; the same row of flow guide islands incline at the same angle, the inclined included angles between adjacent flow guideislands in the same row of flow guide islands are the same, the included angle between the adjacent flow guide islands of the anode is 3-10 degrees, and the included angle between the adjacent flow guide islands of the cathode is 2-8 degrees. The novel bipolar plate distribution head provided by the invention of the proton exchange membrane fuel cell has a good reaction gas distributing effect, and can effectively release internal stress generated by a metal bipolar plate in the preparation and stamping process, so that the bipolar plate is ensured to have good flatness, and the service life of a stack is greatly prolonged; and the novel bipolar plate distribution head is not only suitable for metal bipolar plates, but also suitable for graphite bipolar plates and composite bipolar plates.

The invention discloses a flexible OLED substrate. The flexible OLED substrate comprises a flexible transparent substrate, a transparent conductive layer, a water and oxygen blocking layer and an electrode modification layer, wherein the flexible transparent substrate and the transparent conductive layer are arranged opposite to each other, the water and oxygen blocking layer is arranged between the flexible transparent substrate and the transparent conductive layer, the electrode modification layer is arranged at one side, deviating from the water and oxygen blocking layer, of the transparentconductive layer, the sheet resistance of the transparent conductive layer is 10 ohms per sheet, the light transmittance is larger than 85%, and the water and oxygen permeation rate is lower than 10<-6>g/m<2>/d. The water and oxygen blocking layer having relatively high water and oxygen blocking performance is arranged, the transparent conductive layer with high conductivity, high light transmittance and low surface roughness is arranged, thus, the uniformity of an electric field in the device is effectively improved, the internal resistance energy consumption is reduced, and the performanceof the device is optimized; and moreover, a conductive polymer is also introduced as the electrode modification layer, and the smoothness of a surface of the transparent conductive layer is further improved. The flexible OLED substrate can be used for a flexible OLED display and lighting device and has the advantages of low internal consumption, good light-emitting uniformity, high winding resistance and long lifetime.

The invention relates to a heavy bamboo composite flooring production technology comprising the following steps: heavy bamboo processing; normal bamboo processing; pressing to form an entire plate; cutting heads; straightening edges; heavy sanding; forming; fine sanding; painting process. The bamboo floor production technology in the prior art is poor in reasonability and scientific property, so the produced bamboo floor is poor in quality; the heavy bamboo composite flooring production technology can solve the said problems, is simple in technology, easy to realize, and can be widely applied to the bamboo floor production field.

The invention discloses a method for manufacturing a QFN (quad flat no-lead) package device. The chip load and pins of the manufactured QFN package device do not need to be based on a lead frame manufactured in advance, independent chip carriers and pins with step structures are formed by organically combining electroplating, mechanical grinding and cutting methods in a package technical process and are mechanically supported and protected by configured insulated filling materials in the package technical process, the insulated filling materials and plastic package materials are used for secondary coating and sealing, and the manufactured QFN package device has high I/O (input/output) density and fine reliability.