61results about How to "Improve optical utilization" patented technology

The invention relates to a liquid crystal display module and its polarized optical brightening film, in which the polarized optical brightening film includes a first prism, a thin-film and a second prism. Said thin-film is placed on first prism, and has at least a first refraction layer and at least a second refraction layer, the first refraction layer is different from second refraction layer in index of refraction, and the thickness of every first refraction layer and every second refraction layer is lambda o/4n, and the light source which is incident from first pirsm can be divided into S polarized light and P polarized light, the S polarized light can be reflected to first pirsm by means of thin-film so as to prevent said S polarized light from being absorbed by polaroid, the second prism is placed on the thin-film, and the P polarized light can be transmitted through the thin- film and income to second prism,

The invention discloses a method for manufacturing a photovoltaic solder strip. The method for manufacturing the photovoltaic solder strip includes the flowing steps: a, embossing a raw material, namely a copper strip, with a metal embossing process, forming a reflective groove structure on the surface of the copper strip, obtaining a first semi-finished product, b, conducting an annealing treatment on the first semi-finished product with an annealing process, forming a second semi-finished product, c, selecting proper coated metal, conducting electroplating on the second semi-finished product with an electroplating process, controlling the plating thickness and making the plating thickness to be ranged from 1 micrometer to 30 micrometers, and obtaining the needed photovoltaic solder strip. By means of the photovoltaic solder strip manufactured through the above method, the optical use ratio of a solar cell module can be improved, the manufacturing cost of the photovoltaic solder strip is reduced, the work efficiency of the photovoltaic solder strip is improved, and industrialized production is achieved.

The invention relates to a touch control display device comprising a display module, a backlight module and a prismatic lens. The display module comprises a touch control sensing layer. The backlight module comprises a first light source, a second light source and a light guide plate. The first light source has a first wavelength and the second light source has a second wavelength which is less than the first wavelength. The light guide plate comprises a first incident light surface, a second incident light surface and an emergent light surface. The second incident light surface faces the emergent light surface and the first incident light surface is connected with the second incident light surface and the emergent light surface. The first light source is disposed on the first incident light surface and the second light source is disposed on the second incident light surface. The prismatic lens is disposed between the display module and the backlight module. According to the invention, the sensitivity of touch control is improved.

The invention relates to a portable solar photo-thermal evaporation seawater desalination distiller, which comprises a condensation structure, a photo-thermal conversion material, a water guide channel, a heat insulation layer, a seawater communication layer and a fresh water collection tank, wherein the condensation structure is arranged to be a structure facilitating downward sliding of condensed water, the photo-thermal conversion material is arranged on the lower portion of the condensation structure, the heat insulation layer is arranged on the lower portion of the photo-thermal conversion material, the through water guide channel is formed in the heat insulation layer, the lower edge of the condensation structure is communicated with the upper portion of the fresh water collection tank at the periphery of the heat insulation layer, the fresh water collection tank and the bottom surface of the heat insulation layer define the seawater communication layer, the bottom of the fresh water collection tank is provided with the fresh water discharge hole, and the bottom surface of the fresh water collection tank is provided with a through seawater communication hole. According to the invention, the condensation structure facilitating downward sliding of condensed water is arranged, the condensation structure is communicated with the conical fresh water collection tank, the seawater communication layer between the fresh water collection tank and the heat insulation layer can meet the requirement for continuous drawing of seawater, the floatable property is achieved, and high-efficiency seawater desalination is achieved.

The invention provides a projection screen and a projection system, which belong to the technical field of optical projection. The projection screen comprises a circular Fresnel lens layer, an imagingelement layer, an optical structure layer and a reflection layer, which are sequentially arranged in the thickness direction. The circular Fresnel lens layer is composed of a plurality of circular Fresnel lens structures with the circle centers at the same point. The optical structure layer is composed of a plurality of linear triangular optical structures which are arranged in rows. The cross section of the optical structure layer in the thickness direction is sawtooth-shaped. The vertex angle of each linear triangular optical structure far away from the imaging element layer ranges from 70degrees to 110 degrees. The projection system is composed of the projection screen and a projection device. The projection screen and the projection system, which are provided by the invention, have the advantages of high brightness, high light energy utilization rate, high image definition, good ambient light resistance, high contrast ratio and excellent projection display effect.

The invention discloses a processing method for photovoltaic solder strips and a wire-drawing die and a photovoltaic solder strip processing device used in the method. The method comprises the following steps: a) providing a raw material copper bar; b) carrying out wire-drawing forming on the raw material copper bar through a wire-drawing device, so that a copper strip with a required size is formed, and the surface of the copper strip is formed into a structure with a reflective groove, thereby obtaining a first semi-finished product; c) carrying out annealing treatment on the first semi-finished product by using an annealing process so as to form a second semi-finished product; and d) reasonably selecting a coating metal, and carrying out electroplating treatment on the second semi-finished product by using an electroplating process, and controlling the thickness of the coating to be 1-30 mu m, thereby obtaining a required photovoltaic solder strip. By using the method, a reflective groove can be formed on the surface of a photovoltaic solder strip, so that the optical utilization rate of the photovoltaic solder strip and the power of a solar energy assembly are increased; the method improves the dimensional stability and production efficiency of photovoltaic solder strips, increases the reflective effect of photovoltaic solder strips, reduces the production cost of photovoltaic solder strips, and optimizes the process steps.

The invention discloses an optical film body and a manufacturing method of the optical film body and the optical film primary body. The manufacturing method of the optical film body comprises a first steps of manufacturing a pressed film primary body; a second step of placing a plane optical film manufactured in advance on the surface of the pressed film primary body, vacuumizing, and heating to soften the plane optical film; a third step of cooling the softened plane optical film, shaping the softened plane optical film, and manufacturing the optical film primary body; a fourth step of enabling a conducting layer to cover the surface of the optical film primary body and manufacturing an optical die; and a fifth step of manufacturing the optical film body through the optical die. Through the manufacturing method of the optical film body and the optical film primary body, the optical film body in a stereoscopic structure can be manufactured according to needs, and therefore the optical film can be widely applied to stereoscopic products, the optical film does not need to be adhered to a base body through adhesive sticker, the optical performance of the products is improved, and the service life of the products is prolonged.

The present disclosure relates to a backlight module and a liquid crystal device. The backlight module includes a LED light source and a lens bar. The LED light source is arranged on the LED substrate and includes a plurality of LED lamps encapsulated by CSP. The lens bar is arranged in the front of the LED light source and includes a plurality of chambers. Internal walls of the chambers are parabola-shaped curved surfaces. Each of the LED lamps is arranged in a rim of a focal point formed by the parabola-shaped curved surface such that the curved surface above the LED lamps is symmetrical to that below the LED lamps. With such configuration, the LED light source encapsulated by the CSP may be incorporated in edge-type BLU so as to avoid the optical leakage issue.

Disclosed are a lens and an LED (light emitting diode) lamp with the lens. The lens comprises a light inlet end and a light outlet end, wherein the light input end is a revolving parabolic surface revolution solid which uses the optic axis as the rotation axis, the periphery of the light inlet end is a revolving parabolic surface, a light source containing cavity is formed in the small end of the light input end, a convex spherical surface is formed at a spherical cap of the light source containing cavity, an intersection angle between the end face of the light outlet end and the optic axis is an acute angle, a plurality of strip-shaped convex surfaces which are connected are arranged on the end face of the light outlet end, and light rays shot into the side wall of the light source containing cavity through the periphery of the light inlet end are reflected to the end face of the light outlet end through the periphery of the light inlet end. According to the lens and the LED lamp with the lens, the lens reflects the light rays through the periphery of the revolving parabolic surface, and converges the light rays through the convex spherical surface. Furthermore, the end face of the light outlet end is an oblique plane which forms the acute angle with the optic axis, the plurality of the strip-shaped convex surfaces which are connected are arranged, rectangular spots of 80 degrees*20 degrees are formed after the light rays are reflected through the end face of the light outlet end, an then are emitted out, and therefore a light outlet range is wide, the lens and the LED lamp with the lens are simple in structure and low in cost, and optical utilization rate of the LED lamp with the lens is improved.

The invention provides a microdisplay dynamic target simulation module which comprises a microdisplay, a microdisplay circuit driving board, heaters and a temperature controller. The microdisplay is connected with the microdisplay circuit driving board, the heaters are arranged on the back face of the microdisplay and the front face and the back face of the microdisplay circuit driving board respectively, and the temperature controller is connected between the heaters arranged on the front face and the back face of the microdisplay; the temperature controller detects the real-time temperature of the microdisplay, when the temperature is lower than first preset temperature, the temperature controller is switched on, and the heaters start to heat; when the temperature is higher than second preset temperature, the temperature controller is switched off, and the heaters stop heating. By means of the microdisplay dynamic target simulation module, the usage temperature of the microdisplay can be effectively widened, and the microdisplay can normally work in a low-temperature environment to dynamically simulate a target.

The invention discloses a light guide structure for realizing high brightness by a low-power LED. The light guide structure comprises a support and a light condenser, a PCBA is arranged on the top of the support, an LED lamp wick is installed on the top of the PCBA through an installation base, the light condenser is arranged on the outer side of the top of the PCBA, an optical reflection mirror face is glued in the light condenser, and a light guide column is arranged on the top of the light condenser in a sleeved mode. Compared with a conventional LED lighting light guide mode, the condenser is additionally arranged, the condenser can play a role in collecting light which cannot be directly emitted into the light guide and reflecting the light into the light guide again, meanwhile, the condenser can also reduce the effect that deviation exists between the position relation of a traditional light guide and an LED and actual assembly matching, and therefore the LED optical utilization rate is increased. The objective of low-power high brightness is achieved and the light guide structure is suitable for being widely popularized and used.

The invention provides a light guide plate mold, a light guide plate and a preparation method thereof, belonging to the display field. The mold for the light guide plate includes a mold body and several shaped structures of light guide points arranged on the mold body. The light guide plate includes a plate body, and the plate body includes a light incident surface, a reflective surface intersecting the light incident surface, a light exit surface opposite to the reflective surface, and a light exit surface opposite to the light incident surface. The light-incident surface and the two opposite side faces, the light-incident surface is set facing the light source, and several light guide points are arranged on the reflective surface, and the shape of the light guide points is concave-convex-convex-concave-convex. In the present invention, the shaped structure of the light guide point is set to be concave-convex-convex-convex-convex, so that the shape of the light guide point on the light guide plate prepared based on the light guide plate mold is concave-convex-convex-concave-convex, that is, the shape of the light guide point is concave and convex. , compared with the light guide point including only the convex part, the optically effective utilization area can be enlarged.

The present invention discloses a light source carrier board structure, which includes a carrier board, a plurality of point light sources, a first side board, and a plurality of flanges. The point light sources are arranged on the carrier board. The first side board is essentially perpendicular to the carrier board, and arranged on a long side of the carrier board. The flanges are arranged on the first side board, and the extension direction of the flanges is essentially perpendicular to the carrier board. When the flanges of the side board with the light source carrier board structure is used to avoid the light source configure, the point light source contacts with the optical film piece directly. Hereon, the present invention also discloses a side entry type light source structure. The light source carrier board structure and the side entry type light source structure of the present invention can prevent the components or the optical film piece from being damaged, and can improve the optical utilization rate.

The invention provides a virtual reality display device. The device includes an OLED display panel and an optical system. The optical system is arranged between the OLED display panel and a user observation side. The optical system includes a first linear polarizer arranged between the OLED display panel and the user observation side, a first reflective and transmissive optical film arranged between the first linear polarizer and the OLED display panel and a first 1/4 wave plate arranged between the first reflective and transmissive optical film and the OLED display panel. According to the invention, through the arrangement of the first reflective and transmissive optical film and the first 1/4 wave plate, linear polarized light which cannot pass through the first liner polarizer is converted into linear polarized light which can pass through the first liner polarizer to enter the subsequent optical system, which improves the optical utilization of the virtual reality display device and improves the display brightness of the virtual reality display device.

The invention discloses a projection display system based on full-color light-emitting diode matrixes. The projection display system comprises three light-emitting diode matrix modules, heat dissipation elements, light collection elements, a light mixing element and a projection element. The light-emitting diode matrix modules comprise the three light-emitting diode display matrixes with different wave lengths. The heat dissipation elements serve as accessories of the three light-emitting diode matrixes and are used for dissipating heat. The light collection elements are placed in front of optical paths of the light-emitting diode matrixes and used for collecting light and guiding the light into the light mixing element. The light mixing element is used for mixing the three types of light emitted by the three light-emitting diode matrixes to form a full-color image. The projection element is placed in front of the light mixing element and used for adjusting the image quality and the image size. The active light-emitting display system is realized, passive control elements in the traditional display technology are eliminated, and therefore the optical utilization rate is increased, and the power consumption of the display system is lowered.

The invention discloses a microscope lighting system with adjustable color temperature. The system comprises LED light sources, a control circuit and a man-machine interface, wherein the LED light sources are distributed symmetrically or uniformly in space, the control circuit can control the color temperature and luminance of the LED light sources simultaneously, and the control circuit is connected with the man-machine interface and the LED light sources respectively; the control circuit is composed of a color temperature adjustment unit, a luminance adjustment unit, a main control system unit and a color temperature sensor; and the main control system unit controls the luminance of LED chips with different color temperature through an LED light source driving module and adjusts the color temperature and luminance of microscope lighting. Through the microscope lighting system, the color temperature and luminance of white light illuminating a specimen surface can be adjusted accurately and effectively, and therefore a microscope can meet different environment or specimen requirements and achieve a good observation effect; and the microscope lighting system is simple in structure,high in optical utilization rate and more stable in color temperature.

The invention relates to a circuit board, a light-emitting panel and a display device. The circuit board comprises a base material, a metal wiring layer, an insulating layer and a bonding pad unit. The metal wiring layer is arranged on the base material and comprises first metal wires and second metal wires, and the first metal wires and the second metal wires are distributed at intervals throughthe first openings. The insulating layer covers the metal wiring layer and the substrate exposed by the first opening. The bonding pad units are distributed in an array mode and exposed out of the insulating layer, each bonding pad unit comprises a first bonding pad and a second bonding pad which are arranged in pairs, the first bonding pads are connected with the first metal wires, the second bonding pads are connected with the second metal wires, and backflow grooves are formed in the bonding pad units. The embodiment of the invention can be used for controlling the light-emitting element, the light-emitting element is easy to position during surface mounting, the light-emitting element can be effectively prevented from inclining, the stability of connection between the light-emitting element and the circuit board is ensured, and the optical utilization rate is high.