10results about How to "Diffraction reduction" patented technology

The embodiment of the invention provides a display panel and a display device. The display panel comprises a plurality of sub-pixels, and the sub-pixels comprise a first sub-pixel, a second sub-pixel and a third sub-pixel which are different in color. The two first sub-pixels and the two second sub-pixels form a first virtual quadrilateral, the two first sub-pixels are located at one diagonal position of the first virtual quadrilateral, the two second sub-pixels are located at the other diagonal position of the first virtual quadrilateral, and the third sub-pixel is located in the first virtual quadrilateral; the four third sub-pixels form a second virtual quadrangle, and the first sub-pixels or the second sub-pixels are located in the second virtual quadrangle; at least one of the first sub-pixel, the second sub-pixel and the third sub-pixel comprises a special-shaped sub-pixel, the shape contour of the special-shaped sub-pixel comprises an arc and an elliptic arc, and the arc and the elliptic arc are connected end to end. According to the invention, diffraction can be reduced, and the problem that sub-pixels are lighted without light can be improved.

The invention provides anti-scattering water-guided laser cutting fluid as well as a preparation method and application thereof. The anti-scattering water-guided laser cutting fluid comprises the following components in parts by weight: 0.1-1 part of an anti-scattering agent; 0.01 to 0.1 part of a foam discharging agent; 1-5 parts of a refractive index regulator; and 80-99 parts of ultrapure water. The anti-scattering agent is a polymer; the foam removing agent is one or more of hydroxymethyl cellulose, hydroxy propyl cellulose, sodium lignin sulfonate, potassium lignin sulfonate and naphthalene sulfonic acid formaldehyde condensate sodium salt; the refractive index regulator is an iodine-containing compound and / or a fluorine-containing compound. According to the anti-scattering water-guided laser cutting fluid, light beam scattering and energy loss in the water-guided laser cutting process can be remarkably reduced, and the cutting precision and efficiency are improved. The anti-scattering water-guided laser cutting fluid has very good application prospects and large-scale industrial popularization potential in the field of water-guided laser cutting.

The telescopic barge type wind and wave combined power generation platform comprises a barge type wind turbine platform, a wind generating set, a wave energy power generation system, an energy storage device, a central regulation and control device and a wave monitoring device. Each wave energy power generation system comprises a wave energy power generation device, an electric sliding rail device and a hydraulic connecting device, the wave energy power generation systems are installed on the four side faces of the barge type wind turbine platform, and the four wave energy power generation systems are distributed around the barge type wind turbine platform in a central symmetry mode. Compared with the prior art, the barge type wind power generation platform has the advantages that the barge type wind power generation platform and the wave energy power generation system are integrated, the wave energy power generation system is provided with the telescopic device capable of being automatically adjusted, and the extending length of the wave energy floater can be changed so as to adapt to the changing wave environment.

The utility model belongs to the technical field of novel wall bodies, and particularly relates to a novel cast-in-place light wall body which comprises a foundation, two sets of pouring supporting plates fixed to the surface of the foundation, inner frames fixed between the two sets of pouring supporting plates and a sound insulation assembly installed between the two sets of inner frames. The problems that a traditional wall structure is complex in construction step and low in construction efficiency, the sound insulation and sound absorption effects of a wall are poor, and poor life experience is brought to a user can be solved, sound wave propagation can be effectively blocked, noise diffraction can be effectively reduced, and therefore the sound insulation strength of the sound insulation wall is improved, and the sound insulation wall is worthy of popularization and is worthy of popularization. Through the arrangement of the heat insulation plate and the fireproof plate, the good heat insulation and heat preservation performance and the fireproof partition effect can be achieved, when an accidental fire disaster happens, fire spreading can be effectively prevented, the temperature of the fire disaster can be effectively blocked, and the good heat insulation capacity is achieved.

The embodiment of the utility model discloses a detection device and a detection system, in the detection device, an electromagnetic shielding structure covers the inner wall of a box body; a signal source of the signal generation assembly is arranged outside the box body, a first electric connector penetrates through the box body, a radio frequency antenna is obliquely arranged in the box body, a parabolic reflector is arranged in the box body, and the radio frequency antenna is located below the parabolic reflector; a test fixture of the signal detection assembly is arranged in the box body, the test fixture is located in a focusing area below the parabolic reflector, a radio frequency signal receiver is arranged on the test fixture, the test fixture is used for mounting an object to be detected so as to cover the radio frequency signal receiver, a second electric connector penetrates through the box body, and a spectrum analyzer is arranged outside the box body. Through the above mode, the radio frequency antenna of the embodiment of the utility model obliquely radiates to the parabolic reflector, so that electromagnetic waves are focused and radiated to the test fixture, the electromagnetic field intensity of the test fixture area is enhanced, errors are reduced, and the accuracy of electromagnetic shielding effectiveness detection is improved.

The present invention relates to the field of optical technology, and in particular to a three-dimensional focusing lens and a fiber grating engraving method based on the lens, wherein a lens group, an image acquisition module, a beam expander, a toe plate, and a cylindrical mirror are integrated in the lens, wherein: the beam expander, the toe plate, and the cylindrical mirror are respectively embedded in the first position, the second position, and the third position of the laser receiving part of the lens group; the first position is located at the entrance end of the laser receiving part; the third position is located at the other end of the laser receiving part and close to the focusing point; the second position is located between the first position and the third position, and is provided with a card slot for assembling the toe plate; the image acquisition module and the cylindrical mirror are in the same plane, and are used for acquiring an optical image of an optical fiber in a specified direction based on the cylindrical mirror, and converting the optical image into a digital signal and transmitting it to a control end; the image acquisition module is also used for stopping the optical image acquisition in the specified direction when the focused light of the cylindrical mirror is captured and coincides with the optical fiber to be engraved in the specified direction.

The present application relates to a 2.5D micro-bump packaging structure and a method for preparing the 2.5D micro-bump packaging structure, and relates to the field of semiconductor technology. The 2.5D micro-bump packaging structure comprises a substrate, a first dielectric layer, a first reflective layer, a second dielectric layer, a second reflective layer, a first wiring assembly layer, a second wiring assembly layer and a conductive bump. The first dielectric layer, the first reflective layer, the second dielectric layer and the second reflective layer are sequentially arranged on the substrate, and a first wiring assembly layer and a second wiring assembly layer are prepared after a notch is formed by grooving. Finally, a conductive bump is formed. Since the first reflective layer and the second reflective layer are both made of shading materials, light can be blocked. During the grooving process, the reflection and diffraction of light in the dielectric layer can be slowed down, thereby improving the opening accuracy. At the same time, the problem of pits on the surface of the dielectric layer due to reflection or diffraction is avoided, thereby improving the bonding strength of subsequent wiring layers.

The invention provides an electromagnetic shielding mesh generation method, apparatus and device, and a readable storage medium. The method comprises the steps of determining a Voronoi diagram according to mesh parameters of a to-be-generated mesh; performing shrinkage filling on the Voronoi diagram to construct a mesh model; detecting whether the mesh model meets the demand data of electromagnetic shielding; and if the mesh model meets the electromagnetic shielding requirement, generating an electromagnetic shielding mesh according to the mesh model. Through the implementation of the scheme of the invention, the mesh texture with specific area, spacing and wire diameter size and the irregular mesh holes in the mesh pattern are generated according to the set parameters, diffraction at specific positions can be reduced, and the signal receiving quality is improved.

The embodiment of the present invention provides a display panel and a display device, which relates to the field of display technology and improves the problem of difference in sub-pixel life attenuation. The display panel includes: a first display area and an optical component setting area; a pixel unit, the pixel unit corresponds to a virtual quadrilateral, the pixel unit includes a first sub-pixel and four second sub-pixels, the first sub-pixel is located inside the virtual quadrilateral, and the second sub-pixel is located at the vertex of the virtual quadrilateral; the virtual quadrilateral includes a first side, a second side, a third side and a fourth side, the angle between the third side and the fourth side is a first angle, and the first angle is less than or equal to 90°; the virtual quadrilateral includes a first virtual quadrilateral located in the first display area and a second virtual quadrilateral located in the optical component setting area, and the colors of the first sub-pixels corresponding to the first virtual quadrilateral and the second virtual quadrilateral are the same; the first angle of the first virtual quadrilateral is θ1, and the first angle of the second virtual quadrilateral is θ2, and θ2>θ1.

The utility model discloses a loudspeaker unit with sound resistance regulation function. The diaphragm of the unit is a folded ring type rectangular diaphragm; wherein, the folded ring type rectangular diaphragm comprises a folded ring area, and a hollow part arranged at the center of the folded ring area; the hollow part is covered with a fine hole reticular layer; the outer side of the fine hole reticular layer is covered with an intermediate film, and the covering ratio of the intermediate film is 30% to 70%. The utility model provides a channel for heat dissipation. The intermediate film is covered on the outer side of the fine hole reticular layer, and the covering ratio is 30% to 70%. When the sound wave is transmitted from the diaphragm to the fine hole reticular layer and then spreads outward, the intermediate film will change the propagation path of the sound wave. Due to the partial covering of the intermediate film, it will make the sound wave encounter different medium interfaces (the interface between the intermediate film and air) in the propagation process, thereby generating reflection and transmission phenomena, which is equivalent to adjusting the sound resistance and making the energy distribution of the sound wave more reasonable.