44results about How to "Reduce reflectivity" patented technology

The purpose of the present invention is to provide an EUV photomask blank and an EUV photomask which have high resistance to hydrogen radicals, low EUV reflectance, and a high OD value. A reflective mask blank (10) according to an embodiment of the present invention is provided with at least a substrate (1), a multilayer reflective film (2), a cover layer (3), and a low-reflection part (5) in which a first absorption film (51) having high hydrogen radical resistance and a second absorption film (52) having high hydrogen radical resistance are alternately laminated. The extinction coefficient of the first absorption film (51) is different from the extinction coefficient of the second absorption film (52), or the refractive index of the first absorption film (51) is different from the refractive index of the second absorption film (52), and the extinction coefficient of the second absorption film (52) with respect to EUV light is 0.04 or more.

This invention belongs to the field of reaction chamber technology, specifically relating to an ultraviolet optical cavity reaction chamber module for an air treatment device. The cavity body defines an internal chamber and has an inlet opening and an outlet opening, which are arranged in series with an external airflow passage. One or more internal surfaces of the cavity body are reflective surfaces, the shape of which causes the internal geometry of the cavity body to form an optical cavity. This invention allows light emitted from a region inside the cavity to be repeatedly reflected on an elliptical surface, and to be reflected multiple times within the cavity before reaching the inlet or outlet opening. Simultaneously, the geometric discontinuities at the internal seams minimize the impact on overall optical performance. This invention reduces direct exposure to ultraviolet radiation from the outside of the module and converts intercepted photons into an additional air purification mechanism. Furthermore, the photocatalytic layer does not significantly reduce the reflectivity of the main optical cavity walls.

The utility model discloses a display substrate and a display device. The display substrate comprises a substrate; the driving layer is positioned on one side of the substrate and is provided with a plurality of conductive bonding pads; the light absorption layer is located on the side, away from the substrate, of the driving layer, the orthographic projection of the light absorption layer on the substrate and the orthographic projection of the driving layer on the substrate are overlapped, the light absorption layer is provided with a plurality of first via holes corresponding to the plurality of conductive bonding pads, and the orthographic projection of the first via holes on the substrate and the orthographic projection of the corresponding conductive bonding pads on the substrate are overlapped; the light-emitting units are located on the side, away from the substrate, of the light absorption layer and electrically connected with at least part of the conductive bonding pads through the first via holes; the display substrate further comprises a light transmitting layer and a base material layer which are located on the side, away from the substrate, of the light absorbing layer and sequentially arranged in a stacked mode, the light transmitting layer and the base material layer are continuously distributed film layers, and the light transmitting layer is located between the adjacent light emitting units and located on the side, away from the substrate, of the light emitting units. The display substrate has low reflectivity and high transmittance at the same time, and the application scene is wider.

The present invention addresses the problem of providing an environmentally friendly photosensitive resin composition, a light-shielding film, and a display device, which have both high light-shielding properties and reduced reflectance on both the glass substrate surface side and the film surface side, and which can satisfy the requirements of PFAS specifications and the like by using an extremely small amount of fluorine. The photosensitive resin composition of the present invention contains components (A) to (F), and satisfies the following (i) and (ii) at the same time. (i) When a hardened film of the composition is formed on a glass substrate with an average film thickness in the range of 0.5 to 4.0 [mu] m and the surface of the film is measured by XPS, the ratio of the peak area ASiO2 of SiO2 to the peak area ASiO (ASiO2 / ASiO) in a peak fitting analysis of the Si2p3 / 2 peak value (ASiO2 / ASiO) is 0.10 to 10.0. (ii) The ratio [F / (Si + C + O + F)] of the amount of elemental F present in the film surface to the total amount of Si, C, O, and elemental F is 5.0% or less.

This invention belongs to the field of back-contact battery technology, specifically relating to a back-contact battery and its battery assembly with a specific front-side structure. This specific front-side structure includes a tunneling oxide layer and a specifically doped amorphous silicon layer sequentially disposed on the front side of a silicon substrate. Within the specifically doped amorphous silicon layer, a low-doped amorphous silicon layer, a high-doped amorphous silicon layer, and an oxygen-doped amorphous silicon layer are sequentially disposed along the direction away from the tunneling oxide layer. The specifically doped amorphous silicon layer is doped with phosphorus (P) and contains hydrogen (H). The P doping concentration C1 in the low-doped amorphous silicon layer and the P doping concentration C3 in the oxygen-doped amorphous silicon layer are both lower than the P doping concentration C2 in the high-doped amorphous silicon layer. This specific front-side structure enables the back-contact battery to achieve an absorption rate exceeding 85% for incident light within 400 nm. The back-contact battery of this invention maintains good performance even after long-term exposure to ultraviolet light, improving the battery's UV reliability while achieving high transmittance and high battery efficiency.

This invention discloses a TopCon battery and its fabrication method. The method includes: providing an N-type silicon substrate; the N-type silicon substrate includes a front side and a back side; fabricating a first tunneling oxide layer and a first doped layer on the back side; fabricating a second tunneling oxide layer and a second doped layer on the front side; removing the second tunneling oxide layer and the second doped layer from a predetermined texturing area on the front side to expose a portion of the N-type silicon substrate, and texturing the exposed portion of the N-type silicon substrate surface to form a textured structure; screen printing and high-temperature sintering the first doped layer on the back side and the second doped layer on the front side to form a first electrode in contact with the first doped layer on the back side, and a second electrode in contact with the second doped layer on the front side. Using the above method, the contact resistivity between the electrode and the front surface field layer is reduced, the fill factor of the battery is reduced, and thus the conversion efficiency of the battery is improved.

The invention relates to the photovoltaic field, and provides a back contact battery and a manufacturing method thereof, a laminated battery and a photovoltaic module, and the back contact battery comprises a battery substrate which is provided with a first surface and a second surface which are opposite to each other; the isolating membrane is positioned on the first surface; the isolating membrane comprises at least two isolating units, the surface, far away from the first surface, of each isolating unit comprises a first area and a second area surrounding the first area, each isolating unit comprises a first part located in the first area and a second part located in the second area, the first part is provided with a groove sunken towards the battery substrate, and the edge, far away from the first part, of the second part is fluctuant; and an electrode on the second surface. The invention is at least beneficial to improving the light absorption and utilization rate of the back contact cell by means of the isolating membrane.

The invention belongs to the technical field of photovoltaic cells, and particularly relates to a secondary texturing efficiency-improving process suitable for a TOPCon cell, the secondary texturing efficiency-improving process comprises the steps of pre-cleaning, first texturing, intermediate washing, second texturing, post-cleaning and pickling which are carried out in sequence, the first texturing is carried out at a relatively high temperature, and a basic pyramid textured structure is formed; and the second texturing is carried out at a relatively low temperature, and the textured surface is finely optimized to form a pagoda-shaped pyramid structure. Through specific formula combination, temperature step control and a step-by-step corrosion strategy, the textured structure with excellent light trapping performance can be stably prepared, a pagoda-shaped pyramid structure with a better height-width ratio is achieved, the light trapping effect is effectively improved, the reflectivity is reduced, and the light trapping effect is improved. Therefore, the photoelectric conversion efficiency, the short-circuit current and the fill factor of the photovoltaic cell are improved, and the purposes of efficiency improvement and cost reduction are achieved.

The application discloses an IBC battery and a preparation method thereof. The method comprises the following steps: providing an N-type silicon substrate, wherein the N-type silicon substrate comprises a front surface and a back surface which are opposite to each other; the back surface comprises a first region and a second region which are arranged in an interdigital manner; a first tunneling oxide layer and a first doped layer are prepared on the first region; a second tunneling oxide layer and a second doped layer are prepared on the second region; a texturing process is performed on the front surface and the interval region by using a preset texturing process to form a textured structure; a first passivation layer is prepared on the surface of the back surface which is away from the N-type silicon substrate, and a second passivation layer is prepared on the surface of the front surface which is away from the N-type silicon substrate; screen printing and high-temperature sintering are performed on the first region and the second region to form a first electrode which is in contact with the first doped layer on the first region and a second electrode which is in contact with the second doped layer on the second region, thereby obtaining the IBC battery. By using the method, the reflectivity of the textured structure is reduced, and the conversion efficiency of the battery is improved.

The application discloses a high-transmittance flexible transparent conductive film based on a double-sided antireflection technology and a preparation method thereof. A SiO2 2D photonic crystal antireflection layer is prepared on a polymer substrate surface of the flexible transparent conductive film by using a gas-liquid interface self-assembly method, and a high-molecular doped metal oxide antireflection layer is prepared on a transparent conductive layer surface by using a solution spin coating method, so that the reflectivity of incident light on the polymer substrate surface and the reflectivity of outgoing light on the transparent conductive layer surface are simultaneously reduced. The average transmittance of the flexible transparent conductive film is increased by 10%, the obtained high-transmittance flexible transparent conductive film has good mechanical bending performance, the vacuum and high-temperature annealing process is avoided in the preparation process, and the preparation of a large-area high-transmittance flexible transparent conductive film is facilitated.

A light-absorbing filter, a light filter using the light-absorbing filter, a manufacturing method thereof, a display element intermediate product, a display element, an OLED display device, an inorganic EL display device, and a liquid crystal display device, the light-absorbing filter including: a light-absorbing vanishing layer containing a resin, a dye having a main absorption wavelength band within a wavelength of 400 to 700 nm, and a compound generating a radical by ultraviolet irradiation; and a wavelength-selective absorption layer containing a resin, a dye having a main absorption wavelength band within a wavelength of 400 to 700 nm, and not containing a compound generating a radical by ultraviolet irradiation.

This disclosure relates to the field of solar cell manufacturing technology, and discloses a method for fabricating a solar cell and the solar cell itself. The fabrication method includes: providing a substrate layer with a first textured surface; forming an anti-reflection passivation layer on the surface of the substrate layer, the anti-reflection passivation layer conformally covering the first textured surface; laser-treating the anti-reflection passivation layer to form a second textured surface, the second textured surface including multiple micro-recesses; and forming a repair passivation layer on the laser-treated surface of the anti-reflection passivation layer to repair laser damage introduced by the laser treatment, the repair passivation layer conformally covering the second textured surface. This disclosure can ensure the passivation effect of the cell while improving the light-trapping effect of the cell surface.

The invention provides a display panel and a display device, and relates to the technical field of display, the display panel comprises a pixel opening area and a photosensitive area, the pixel opening area is provided with a light emitting element, and the photosensitive area is provided with a light hole; the display panel comprises a light filtering layer, the light filtering layer is located on one side of the light-emitting face of the light-emitting element, the light filtering layer comprises a first color resistor, and the first color resistor is overlapped with the light-emitting element; the filter layer comprises a second color resistor, and the second color resistor is at least partially overlapped with the at least one light hole. By arranging the second color resistor to be at least partially overlapped with the at least one light hole, the transmittance of the light hole can be reduced, so that the reflectivity difference between the photosensitive area and the pixel opening area is reduced when the display panel is in a screen-off state or is irradiated by strong light, in addition, the hue of the light hole can be changed through the arrangement of the second color resistor, and the display uniformity is improved.

The utility model belongs to the technical field of conference tablet personal computers, and particularly discloses a conference tablet personal computer with an etched AG glass display structure, which comprises a main shell and an AG glass plate, the AG glass plate is clamped and fixed in the main shell, an adhesive layer is adhered between the periphery of the AG glass plate and the main shell, a circuit board is mounted between the rear of the AG glass plate and the main shell, and the circuit board is connected with the AG glass plate. And grooves II are formed in the upper part and the lower part of the inner wall of the main shell respectively. According to the conference panel with the etched AG glass display structure, an AG glass plate is clamped and fixed in a main shell, the AG glass plate is placed in the main shell and is assembled and connected with a circuit board behind the main shell, the periphery of the AG glass plate is coated with an adhesive layer, then a first pressing piece and a second pressing piece are turned over, and the AG glass plate is assembled and connected with the circuit board through connecting blocks assembled in a first groove and a second groove. The first pressing piece and the second pressing piece make contact and abut against each other in a clamped mode through the rubber head at the end opening, the AG glass plate is prevented from being separated from the main shell, and the problem that glass is prone to refraction is solved.

The utility model discloses a kind of push-pull windows with heat insulation function, it is related to push-pull window technical field, including fixed window frame and heat insulation component, the fixed window frame is integrated structure, and the inside surface slidingly connected with sash window frame in fixed window frame, the heat insulation component is set to sash window frame surface, and heat insulation component includes first fixed groove, second fixed groove, nylon sealing gasket, polyurethane filler, hollow glass, nano ceramic heat insulation film, Low-E coated glass and scratch-proof film, the first fixed groove is opened in the inside surface inner end of sash window frame, and the second fixed groove is opened in the inside surface outer end of sash window frame. The push-pull window with heat insulation function, by heat insulation component, so that the device can greatly enhance the heat insulation performance of push-pull window whole, can significantly reduce indoor and outdoor heat exchange, reduce air conditioning or heating energy consumption, save electricity expense, by movable assembly, so that the device can reduce the friction of slide rail, reduce slide rail abrasion, to prolong its service time.

This invention belongs to the field of display materials technology, and relates to a low-reflectivity black dispersion and its preparation method. The low-reflectivity black dispersion comprises the following components in parts by weight: 15-20 parts organic black pigment, 1-5 parts blue pigment, 1-5 parts red pigment, 0.1-2 parts red derivative, 0.1-2 parts black derivative, 3-6 parts dispersant, 3-6 parts acrylic resin, and 54-78 parts solvent. This invention uses organic black pigment to replace carbon black as the black matrix, adds blue and red pigments to reduce the reflectivity of the organic black photoresist composition film, and adds red and black derivatives to improve dispersion stability and reduce the viscosity and particle size of the dispersion. The low-reflectivity black dispersion of this invention has small particle size and stable dispersion, reducing the reflectivity after film formation while maintaining blackness.

The utility model belongs to the technical field of communication safety, and particularly relates to an anti-interference infrared laser one-way leading-in device suitable for high-safety secret communication and other data isolation transmission scenes, the anti-interference infrared laser one-way leading-in device comprises a receiver closed shell, a blocking film is arranged on the inner side wall of the receiver closed shell, and a narrow optical window is formed in one side of the receiver closed shell. A laser receiving device is arranged on the inner wall in the direction of the other side, opposite to the narrow optical window, of the receiver closed shell, and a multi-layer structure filtering membrane and a secondary filtering grid are sequentially arranged between the narrow optical window and the laser receiving device. According to the utility model, through dual mechanisms of optical angle limitation and spectral absorption, an interference path is cut off structurally, the anti-interference capability is improved remarkably, and the risks of scattered light interference and transmission information eavesdropping are reduced greatly.

The invention relates to an optical conduction assembly, a camera module and electronic equipment. The optical conduction assembly comprises: a first prism having a first light incident surface and a first light emergent surface; the second prism is provided with a second light-in surface and a second light-out surface, and the first light-out surface and the second light-in surface are opposite to each other and are arranged at an interval to form a first gap; at least part of light entering the first prism from the first light entering surface can sequentially pass through the first light exiting surface, the light passing part of the first gap and the second light entering surface to enter the second prism, and is emitted from the second light exiting surface; wherein the refractive index of a medium of a light passing part of the first gap is smaller than that of the first prism, and the first light emitting surface and the second light incident surface are inclined to the first light incident surface. According to the optical conduction assembly, the interface of the first prism and the first gap can reflect stray light, and the effect of reducing the stray light is achieved.

The invention relates to the technical field of texturing additives for monocrystalline silicon wafers, and discloses a texturing additive for a pyramid textured monocrystalline silicon wafer and a preparation method of the texturing additive. Comprising the following raw materials in parts by mass: 1-1.5 parts of organic sulfonate, 1-2 parts of a polyamine high-molecular compound, 1-2 parts of a high-molecular polymer, 0.5-1 part of a surfactant, 0.2-0.5 part of a composite additive and 90-110 parts of deionized water. The composite additive contains a large number of carboxyl groups, hydroxyl groups and amino groups, the adsorption performance of the texturing additive on the surface of the monocrystalline silicon wafer can be enhanced, then a uniform pyramid structure is formed, the reflectivity is reduced, and the contained modified nano titanium dioxide can form a nano composite film on the surface of the monocrystalline silicon wafer, so that the texturing effect is improved. And the surface roughness and the scattering effect are further improved.

The invention relates to a camera support. The camera support comprises a support body and a light capturing structure, the support body is used for installing a camera, the support body is provided with an inwards-concave area used for avoiding the view field of the camera, and when the support body is installed on a windshield, the inwards-concave area is provided with a reflecting face facing the windshield; the light capturing structure is arranged on the reflecting surface, and the glossiness of the light capturing structure is smaller than 0.1 gloss unit under the 20-degree incident light test condition. Through the arrangement, the light capturing structure has extremely low glossiness, belongs to a low-reflection even non-reflection structure, and can effectively absorb light rays irradiated on the surface of the light capturing structure, greatly reduce the reflectivity of the light rays and prevent the light rays from being reflected back to a windshield from a reflecting surface; therefore, the condition that the reflected light is reflected to the lens of the camera again through the windshield is avoided, and the definition and accuracy of the image collected by the camera are improved.

This application discloses a display panel and a display device. The display panel includes a substrate and a light-emitting layer located on one side of the substrate. The light-emitting layer has at least one first pixel region and at least one second pixel region, and includes a plurality of non-privacy sub-pixels located in the first pixel region and a plurality of privacy sub-pixels located in the second pixel region. In adjacent first and second pixel regions, the plurality of non-privacy sub-pixels and the plurality of privacy sub-pixels constitute multiple groups of sub-pixels. Each group of sub-pixels includes a non-privacy sub-pixel and a privacy sub-pixel with the same emission color. In two groups of sub-pixels with different emission colors, the difference in the emission area of ​​the non-privacy sub-pixels and privacy sub-pixels in the two groups of sub-pixels is the same. This application can improve the all-black effect in the screen-off state without affecting the display effect of the display panel in privacy mode and sharing mode.

The invention relates to a solar cell, a preparation method thereof and a photovoltaic module. The solar cell comprises a substrate, a first doped conductive layer and a first grid line, the first doped conductive layer and the first grid line are sequentially arranged on the backlight face of the substrate, the first doped conductive layer comprises a first area in the middle and a second area outside the first area, and the first area comprises an edge area close to the second area and a middle area away from the second area. The second area, the edge area and the middle area are arranged in the first direction, the middle area comprises a first middle sub-area and a second middle sub-area, the first middle sub-area is configured to be an area corresponding to the first grid line in position, the two sub-areas are alternately arranged in the second direction, and the first direction intersects with the second direction; the edge region is provided with a convex microstructure, and the roughness Ra1 of the edge region, the roughness Ra2 of the second middle sub-region and the roughness Ra3 of the second region meet Ra1gt; ra1, Ra2, Ra1gt; and Ra3. The solar cell can improve the power generation efficiency of the backlight surface and improve the double-sided rate.

A light-emitting display device according to one or more embodiments of the present disclosure can include a substrate including a plurality of sub-pixels having a light-emitting area and a non-light-emitting area; a pixel circuit disposed within the non-light-emitting area on the substrate; at least one insulating layer disposed on the pixel circuit; and a color filter disposed on the at least one insulating layer and corresponding to at least one of the plurality of sub-pixels, wherein one or more of the plurality of sub-pixels can include a low-reflection optical portion adjacent to or in contact with the color filter within the light-emitting area and having at least one transverse electric mode (TE mode) reflection pattern.

The utility model relates to the technical field of gas protection devices, and discloses a gas protection device for red light laser copper alloy 3D printing, which comprises a red light laser metal 3D printer body, a PLC (programmable logic controller) is fixedly mounted on the front side of the red light laser metal 3D printer body, and a box door is arranged on the front side of the red light laser metal 3D printer body. A reflecting plate and a forked gas conveying pipe are fixedly installed in the red light laser metal 3D printer body, a transfer hollow ring is fixedly installed at the bottom of the forked gas conveying pipe, and an argon spray head is fixedly installed at the bottom of the transfer hollow ring. According to the gas protection device for red light laser copper alloy 3D printing, by arranging the direction-adjustable argon nozzles which are annularly distributed in the red light laser metal 3D printer body, argon can be introduced, under the control of the PLC, the gas flow angle and speed are controlled, a laser scanning path is followed in real time, the reflectivity is reduced, and the loss of laser energy is reduced; and the gas is effectively protected.

The invention provides a preparation method of a transfer mold, an imprinting mold, a cover plate, a preparation method and a terminal. The preparation method of the transfer printing mold comprises the steps that a metal plate is provided; performing first anodic oxidation on the metal plate to form a porous structure on the surface of the metal plate; carrying out chemical etching on the metal plate to remove the porous structure, so that a plurality of nano pits which are distributed at intervals are formed in the surface of the metal plate; carrying out second anodic oxidation on the metal plate so as to carry out pore forming; the metal plate is subjected to chambering to obtain a transfer printing mold, the transfer printing mold comprises a plurality of first sunken parts arranged on the surface of the transfer printing mold at intervals, and the range of the arrangement period d1 of the first sunken parts is d1 smaller than or equal to 200 nm. According to the preparation method of the transfer printing mold, the prepared transfer printing mold can be used for preparing a cover plate, and the prepared cover plate has relatively high light transmittance and relatively low reflective rate.

A display device and a display panel are disclosed. The display device may include: a substrate defining a plurality of sub-pixels; a thin-film transistor disposed on the substrate; a planarization layer disposed on the thin-film transistor; an organic light-emitting diode disposed on the planarization layer corresponding to each of the plurality of sub-pixels; an encapsulation layer disposed on the organic light-emitting diode; a touch sensor layer; a touch protection layer disposed on the touch sensor layer; a black matrix disposed on the touch protection layer between adjacent sub-pixels; and a plurality of color filters disposed on the touch protection layer corresponding to each of the plurality of sub-pixels.

The utility model provides a kind of four sides shrinkage magnetic control sputtering energy-saving base film, including first composite layer structure, second composite layer structure, third composite layer structure, wherein first composite layer structure and second composite layer structure between being provided with first barrier layer, the second composite layer structure and third composite layer structure between being provided with second barrier layer, wherein first composite layer structure, second composite layer structure and third composite layer structure all include niobium oxide layer, zinc-aluminium oxide layer and silver alloy layer. The utility model is optimized by three-layer composite structure design and barrier layer.

The application provides an optical transparent structure and a performance optimization method, device, electronic equipment and medium thereof, and comprises a micro-nano device, a first dielectric spacing layer, a disk array, a second dielectric spacing layer, an infrared reflection layer and an anti-reflection layer connected in sequence, wherein the micro-nano device, the first dielectric spacing layer and the disk array form an array, the micro-nano device and the disk array are silver films, the first dielectric spacing layer, the second dielectric spacing layer and the anti-reflection layer are made of silicon nitride, and the optical transparent structure is optimized by using reverse optimization based on a genetic algorithm. The application has the beneficial effects that: through the optical transparent structure and the reverse optimization based on the genetic algorithm, multi-band compatibility of visible light, infrared and laser bands is realized, and a heat management function is realized at the same time.

The present invention addresses the problem of providing a photosensitive resin composition for a black resist, which can reduce the reflectivity of the black resist on the glass substrate side, suppress the aggregation of foreign matters, and improve the adhesion to the substrate after patterning, and also providing a method for producing the photosensitive resin composition, a light-shielding film, an optical filter, a touch panel, and a display device. The photosensitive resin composition for a black resist contains (A) a photosensitive resin containing an unsaturated group; (B) a photopolymerizable compound having at least two unsaturated bonds; (C) a photopolymerization initiator; (D) a pigment dispersoid containing at least one light-blocking component selected from the group consisting of a black pigment, a mixed color pigment, and a light-blocking material; (E) a silica dispersoid containing silica particles; and (F) a solvent. The component (A) contains a component (A1) having a specific structure, a part of the component (A1) is contained in a state of being dissolved in the component (F), and a part of the component (A1) is contained in the component (D).

This invention discloses a VR optical structure, which, from the object side to the image side, sequentially includes: a first lens, a second lens, an anti-reflection component, and a display panel. The display panel is provided with a first quarter-wave plate. The anti-reflection component, from the object side to the image side, sequentially includes a first anti-reflection film, a second quarter-wave plate, a first linear polarizing film, and a third quarter-wave plate. The rotation angles of the first and second quarter-wave plates are the same, and the difference between the rotation angles of the first and third quarter-wave plates is 90°. This VR optical structure eliminates the need for a film on the display panel, effectively reducing stray light generated by reflection and improving image quality. This invention also discloses an electronic device, including a device body and the aforementioned VR optical structure, wherein the VR optical structure is disposed on the device body.