Abstract:
Disclosed are an organic electroluminescent device and a preparation method thereof. The organic electroluminescent device is a top-emitting organic electroluminescent device having a reversed structure, and the preparation method is: dissolving zinc oxide with acetic acid to obtain a zinc oxide solution with a concentration of 0.3 g/ml-0.6 g/ml, adding a phthalocyanine substance in a mass of 1%-10% of the mass of the zinc oxide to obtain a mixture, spin-coating the mixture on a glass substrate (1) and then drying to obtain a cathode (2), and then preparing by vapor deposition, an electron injection layer (3), an electron transport layer (4), a luminescent layer (5), a hole transport layer (6), a hole injection layer (7) and an anode (8), successively, so as to obtain the organic electroluminescent device.
Abstract:
A liquid crystal grating module (3) and a two dimension-three dimension switchable liquid crystal display device using the same. The liquid crystal grating module (3) comprises a first transparent electrode layer (20) and a second transparent electrode layer (50). The first transparent electrode layer (20) and the second transparent electrode layer (50) are provided with interval. The first transparent electrode layer (20) comprises a plurality of lateral electrode bars (202,204). The second transparent electrode layer (50) comprises a plurality of vertical electrode bars (502,504). The lateral electrode bars (202,204) and the vertical electrode bars (502,504) are alternately superposed on each other with interval to form a grating structure. The vertical electrode bars (502,504) have three different widths in the direction vertical to the liquid crystal display pixels.
Abstract:
Disclosed are a motor and a rotor thereof. Taking the distance between the two endpoints of a permanent magnet (20) of a motor rotor that are on the side away from the centre of an iron core (10) as the length L of the permanent magnet, and the distance between a line connecting the two endpoints of the permanent magnet that are on the side away from the centre of the iron core (10) and the centre point on the side of the permanent magnet that is close to the centreline of the iron core as the width H of the permanent magnet, then H/L≧1/10. By adjusting the relationship between the length L and width H of the permanent magnet, the air gap magnetic density of the permanent magnet can be effectively increased, i.e. increasing the permanent magnetic flux of the rotor in the directions of the d axis and q axis. Hence, the utilization rate of the permanent magnet and the performance of the rotor can be improved without increasing the number of permanent magnets used.
Abstract:
Disclosed are a motor rotor and a motor having same, wherein the motor rotor comprises an iron core (10) and permanent magnets (20) provided within the iron core (10), sets of mounting grooves (30) are provided in the peripheral direction of the iron core, with each set of mounting grooves comprising more than two mounting grooves (30) arranged intermittently in the radial direction of the iron core (10). The permanent magnets (20) are correspondingly embedded into the individual mounting grooves (30). The thickness of the permanent magnet (20) at the centre of the cross section thereof and perpendicular to the rotor axis is greater than the thickness at both ends thereof. The rotor optimizes the shape of the permanent magnets (20) and improves the efficiency of the motor.
Abstract:
Disclosed is a permanent magnet synchronous motor comprising a stator (1) and a rotor (2), wherein the stator (1) is provided thereon with a plurality of wire slots (3) in a circumferential direction, the rotor (2) is provided therein with a plurality of sets of magnet slots (5) in a circumferential direction, with the wire slots (3) being provided therein with coils (4) and the sets of magnet slots (5) being provided therein with permanent magnets (7); the number of poles of the permanent magnets (7) on the rotor (2) is P, the spacing between two adjacent sets of magnet slots (5) is W, the tooth width of the stator (1) is Lc, and the number of the wire slots (3) on the stator (1) is S, wherein 3PW/LcS=K, and 0.15≦K≦0.85. The permanent magnet synchronous motor can reduce dependence on rare earth and improve the output torque of the permanent magnet synchronous motor.
Abstract:
Disclosed is a permanent magnet synchronous electric machine, comprising a stator (1) and a rotor (2). A plurality of wire grooves (3) are provided peripherally on the stator (1), coils (4) are provided within the wire grooves (3), and a stator tooth (5) is provided between adjacent wire grooves (3). A plurality of magnetic groove sets (6) is provided peripherally within the rotor (2), each of the magnetic groove sets (6) comprising at least two magnetic steel grooves (7), with permanent magnets (8) placed within the magnetic steel grooves (7), and a magnetic channel (9) formed between the magnetic steel grooves (7). Of two adjacent magnetic channels (9), an end of one magnetic channel (9) is opposite a wire groove (3) and an end of the other magnetic channel (9) is opposite a stator tooth (5). The permanent magnet synchronous electric machine has a more steady output torque, and also reduces the noise and vibration provided during operation.
Abstract:
The invention relates to the semiconductor material manufacturing technical field. A multi-elements-doped zinc oxide film as well as manufacturing method and application in photo-electric devices thereof are provided. The manufacturing method comprises the following steps: (1) mixing the powder of Ga2O3, Al2O3, SiO2 and ZnO according to the following percentage by mass: 0.5%˜10% of Ga2O3, 0.5%˜5% of Al2O3, 0.5%˜1.5% of SiO2, and the residue of ZnO; (2) sintering the powder mixture as target material; (3) putting the target material into a magnetic sputtering chamber, evacuating, setting-up work pressure of 0.2 Pa-5 Pa, introducing mixed gas of inert gas and hydrogen with a flow rate of 15 sccm˜25 sccm, adopting a sputtering power of 40 W˜200 W, and sputtering on the substrate to obtain the multi-elements-doped zinc oxide film.
Abstract:
A substrate, manufacturing method thereof, and an organic electroluminescent device using the same are provided, belonging to photoelectron field. The substrate includes a paper layer (102), a first protection layer (101) formed on the lower surface of the paper layer, and a second protection layer (103) formed on the upper surface and covering the same of the paper layer. The substrate, solves problems of paper which is easy to absorb humidity and has high permeability of oxygen by a protection processing that said paper is coated with the heat seal film of polyethylene terephthalate coated with Polyvinyl Dichloride. At the meantime, the substrate has the advantages of cheap material, extensive sources, simple manufacturing process, good flexibility of the substrate, and good capability of preventing the permeability of water as well.
Abstract:
An organic electroluminescent device and a conductive substrate thereof are provided. Said conductive substrate includes a glass substrate, an indium tin oxide (ITO) layer and a metal oxide layer located between said glass substrate and said ITO layer. The refractive index of said metal oxide layer ranges between that of said glass substrate and said ITO layer. Due to the metal oxide layer, the refractive index of which ranges between that of the glass substrate and the ITO layer, is inserted into said conductive substrate, when the light extracts between the ITO/metal oxide layer and the metal oxide layer/glass, the critical angle of total reflection increases compared with that without the inserted metal oxide layer. Most part of light extracts out of the interface after refraction, and only small part of light is totally reflected, thus the light extraction enhances.
Abstract:
A media stream processing method, a communication system, and a relevant device are disclosed, so as to improve the user experience. The method includes the following steps: a first media receiving device receives media streams, where the media streams include a first media stream and a second media stream; and the first media receiving device processes the first media stream quickly and plays the second media stream normally so that media play progress of the first media receiving device is synchronous with media play progress of the second media receiving device, where the second media receiving device is configured to receive multicast media streams, and the first media receiving device and the second media receiving device are in the same multicast group. A communication system and a relevant device are also disclosed herein. In this way, the user experience is improved.