232results about How to "Good consistency" patented technology

The invention discloses an arbitrary-curved-surface plane seamless spliced high-quality large-screen display device. The arbitrary-curved-surface plane seamless spliced high-quality large-screen display device is formed by stacking brick-shaped optical-fiber rear-projection display modules, wherein elements of each brick-shaped optical-fiber rear-projection display module include a variable-cross-section optical fiber panel, a signal processing module, a liquid crystal display panel, an LED (light-emitting diode) light source module, a fixing device, a shell, an anti-dazzling frosting coating and a touch sensing plate. The arbitrary-curved-surface plane seamless spliced high-quality large-screen display device has beneficial effects that a seamless spliced high-quality screen with small dot pitch can be produced, a display video picture of an arbitrary curved surface, a special arbitrary shape, and an arbitrary area can be realized; the seamless splicing principle is the primary-pixel splicing principle, pixel points are uniformly and compactly arranged, and the display consistency of the brightness and color is optimal; by adopting the modularized production, the constitutional part is easy to repair and replace; the touch sensing plate can be embedded into the display device, so that precision in positioning can be realized, and the picture quality and the shape of the display device are not affected; the water resistance and collision resistance are relatively good.

The invention relates to a super small colored LED display unit of embed serial driven control chip in the field of the production and technology of LED display apply. It is characterized in that the super small print circuit plate is formed by a serial transmitting driven control chip, a red LED light, a blue LED light, a green LED light and a plurality of resistances; the super small print circuit can finish any amount of serial connecting. The embed serial transmitting driven control chip provides the RGB brightness independent adjustment to each image element and connects the LED light and the driving part on the super small print circuit plate.

The invention provides a cell tissue staining method which can keep a slide still and control the flow mode of a staining solution, and a staining machine thereof. The staining machine mainly comprises a liquid storage tank, a solenoid valve, a dye vat, a machine frame, a control system, a transition block and a liquid collection device; the liquid storage tank is positioned at the upper part of the machine frame; the dye vat is positioned at the lower part of the machine frame; the liquid collection device and the solenoid valve are positioned between the liquid storage tank and the dye vat; the liquid storage tank is connected with the liquid collection device through the solenoid valve; and the liquid collection device is connected with the dye vat through the transition block. The method is characterized in that the natural liquid level pressure difference of the staining solution serves as a liquid working power source during the entire process of staining; the staining solution in the liquid storage tank flows into the liquid collection device through the solenoid valve; the staining solution in the liquid collection device is heated to the temperature set for staining, and then flows into the dye vat provided by a slide through the transition valve; and the staining process is completed by the slide in the dye vat. Compared with the traditional staining machine which keeps staining solution still and controls the model of slide movement, the invention is advanced and can achieve the effects of enhancing staining effect, improving staining efficiency, saving energy, reducing pollution and saving staining cost.

Disclosed is a direct current electric energy conversion method and system with a DCDC module automatic conversion function. The system comprises N DCDC modules arranged in parallel, an output voltagedetection and feedback module and a clock signal module for providing working clock signals; a control module detects a current which is output to an external load, and works out that the number of the DCDC modules which need to be started is Q according to the value of the load current, and outputs enabling and starting control signals to Q DCDC modules; the working clock signals CLKN of the Q DCDC modules are the same in period, and the phase difference of each working clock signal CLKN is equal to 360 degrees/Q; the multiple paths of DCDC modules are connected in parallel, so that a relatively high current can be output and the system power consumption is also lowered; the multiple paths of DCDC modules are arranged on the same chip, so that quite high parameter consistency characteristic and high current balance characteristic in each path are achieved; and by virtue of time-sharing soft start and phase shifting time-sharing control, overcharging can be avoided, the ripple wave ofthe power supply output voltage is lowered, and more stable output characteristic is realized.

The invention provides a pervious straw fiber concrete and a production method thereof. The method comprises the following steps: unwinding plant straws into dispersed straw fibers, carrying out alkali liquor steam curing on the straw fibers and silica micro-powder to form silica micro-powder coated modified straw fibers, and uniformly mixing the silica micro-powder coated modified straw fibers with high-calcium fly ash, fine aggregates, a water reducer and water to obtain the pervious straw fiber concrete. Steam oxygen of gaseous oxidation aggregated silica micro-powder makes the gel coated straw fibers have good dispersibility, permeability and thickening property, and the modified fibers formed by the coated straw fibers have a thickening property, so a formed straw fiber network has good water permeability, the adhesion force between a cement mortar and the fine aggregates and between the cement mortar and the straw fibers is enhanced, and the strength of the concrete is greatly improved; and the method effectively recovers agriculture and forestry straws, and realizes the high-value comprehensive utilization of solid wastes.