16results about How to "Avoid light" patented technology

The invention discloses a portable planting machine for corn cultivation, and relates to the technical field of corn planting.The portable planting machine comprises a main body, sliding grooves are symmetrically formed in the upper portion of the main body, the sliding grooves are slidably connected with a supporting plate, and the upper portion of the supporting plate is fixedly connected with a stirring box used for stirring corn seeds and chemical fertilizer; an oscillating mechanism is arranged on the lower portion of the supporting plate and used for preventing materials in the stirring box from being blocked, a flow guide box is fixedly connected to the lower portion of the stirring box, an intermittent discharging mechanism is arranged on the lower portion of the flow guide box and used for intermittently falling corn seeds, and a planting mechanism is arranged on the lower portion of the main body. The sowing spacing of the seeds can be accurately controlled through the intermittent discharging mechanism, and the situation that the seeds compete for nutrients, moisture and illumination due to the fact that the distance between the seeds is too short is avoided, so that it is guaranteed that each corn seedling can obtain sufficient growth resources.

The invention discloses a hydrophilic graphene dispersion liquid for PCB hole metallization, and belongs to the technical field of circuit board processing, the hydrophilic graphene dispersion liquid comprises the following components by mass: 1-5% of boron-doped graphene, 1-5% of boron-doped graphene quantum dots, 10-40% of polypyrrole, 0.5-1% of a dispersant, and 0.5-2% of a surfactant. The second purpose of the invention is to provide a preparation method of the hydrophilic graphene dispersion liquid for PCB hole metallization, the dispersion liquid is subjected to boron doping treatment on graphene and graphene quantum dots, so that the overall conductivity is enhanced, the hydrophilicity is enhanced, the dispersion liquid has excellent dispersity, and the hydrophilicity of the dispersion liquid is improved. Through the synergistic effect of polypyrrole, boron-doped graphene and boron-doped graphene quantum dots, the stability and adhesion of the composite material are further enhanced.

The utility model provides a prostate small body leaked protein detection kit, and relates to the technical field of prostate detection. The prostate small body leaked protein detection kit comprises a storage box and a kit body, a storage mechanism is arranged in the storage box, a temperature control mechanism used for controlling the internal temperature of the device is arranged in the storage box, and the temperature control mechanism comprises an electric heating tube and a semiconductor chilling plate. The electric heating tubes are fixedly mounted at two ends of the inner wall of the storage box, and the kit body is mounted in the storage box. By arranging the temperature control mechanism, the prostate small body leaked protein detection kit solves the problem that the conventional prostate small body leaked protein detection kit is easily influenced by environmental factors such as temperature fluctuation and illumination in transportation and storage processes, so that the quality of a reagent is reduced, and the accuracy of an experimental result is influenced; the beneficial effects that the internal temperature of the device can be controlled, the kit body is prevented from being illuminated, and the kit is convenient to use are achieved.

The utility model discloses a fire-fighting emergency lighting lamp which comprises a lamp shell and a rear cover matched with the lamp shell, a rotating cavity is formed in the front end of the lamp shell, a fixed rotating seat is arranged at the lower end of the rotating cavity, a light-emitting cover is rotationally arranged on the fixed rotating seat, and the light-emitting cover is arranged in the rotating cavity. The light-emitting cover comprises a rotating bottom cover, a light-transmitting cover arranged on the rotating bottom cover, a light source plate arranged between the rotating bottom cover and the light-transmitting cover and a first sealing ring arranged at the matching position of the rotating bottom cover and the light-transmitting cover. The illumination angle of lamplight can be adjusted by rotating the light-emitting cover, and the problem that part of areas cannot be illuminated due to limitation of the installation environment is solved. According to the explosion-proof emergency lighting lamp, the explosion-proof emergency lighting lamp is designed by adopting a full die-casting aluminum structure, the explosion-proof emergency lighting lamp can be used in gas and dust explosive environments, the lamp shell, the rear cover, the second sealing ring and the power supply sealing mechanism jointly form an independent and sealed explosion-proof cavity, and the waterproof effect and the protection grade of the whole machine are improved.

Disclosed are a display substrate and a packaging method of the display substrate. The display substrate comprises a substrate, a plurality of light emitting devices, a light absorbing layer, a light transmitting layer, and a transparent protective layer. The plurality of light emitting devices are arranged on the substrate with a spacing region between adjacent light emitting devices; the light absorbing layer is located at least in the spacing region; the light transmitting layer is continuously arranged on the side of the light absorbing layer away from the substrate and the side of the light emitting device away from the substrate; the transparent protective layer is arranged on the side of the light transmitting layer away from the light absorbing layer; wherein the plurality of light emitting devices comprise a first light emitting device, a second light emitting device, and a third light emitting device, the spacing between the first light emitting device and the second light emitting device is smaller than the spacing between the second light emitting device and the third light emitting device, and the difference between the minimum thickness of the light absorbing layer in the spacing region between the first light emitting device and the second light emitting device and the minimum thickness of the light absorbing layer in the spacing region between the second light emitting device and the third light emitting device is less than or equal to 2.0 μm.

This invention provides an image forming apparatus in which, compared to illuminating a light-emitting portion of a discharge end located in a position difficult for surrounding users to visually perceive, residual recording medium on the discharge end can be easily detected by nearby users. The image forming apparatus includes: a first discharge end for discharging recording medium; a second discharge end located in a position even more difficult for surrounding users to visually perceive than the first discharge end; a memory; and a processor, which controls the illumination of a first light-emitting portion located in a position wider than the second discharge end, where residual recording medium is found on the second discharge end.

The utility model provides a handheld laser machine which comprises a light path channel, a detection assembly and an insulation assembly, and the end portion of the light path channel is provided with a nozzle assembly. The detection assembly is arranged on the nozzle assembly and can extend into the nozzle assembly; the insulation assembly is arranged on the light path channel and can shield an electric signal outside the detection assembly. Thus, when the handheld laser machine works, the handheld laser machine can detect the distance between the focal point of laser and the workpiece to be machined, so that the distance is controlled, the distance between the focal point and the workpiece is proper, machining is facilitated, light emitting of the handheld laser machine can be stopped when the working condition is abnormal by controlling the distance, and the working efficiency is improved. And the safety of operators is ensured.

The present invention discloses a semiconductor light-emitting device and a manufacturing method thereof, wherein the semiconductor light-emitting device comprises a substrate, at least one positive electrode pad and at least one negative electrode pad arranged on the substrate, at least one semiconductor light-emitting chip arranged on the substrate, a phosphor layer arranged on the substrate and wrapping the semiconductor light-emitting chip, and an insulating layer arranged on the inner side of the phosphor layer; the positive electrode and the negative electrode of the semiconductor light-emitting chip are electrically connected to the positive electrode pad and the negative electrode pad respectively; the insulating layer is located between part or all of the inner surface of the phosphor layer and part or all of the substrate surface; and / or, between part or all of the inner surface of the phosphor layer and part or all of the side surface of the semiconductor light-emitting chip. The semiconductor light-emitting device of the present invention prevents the semiconductor light-emitting chip from emitting light from the side and enhances the front light emission of the semiconductor light-emitting chip by setting a structural layer to block the side surface of the semiconductor light-emitting chip, and is suitable for preparing lighting fixtures with high central light intensity requirements and small light emission angle requirements.

The invention provides a pixel circuit, a driving method and a display panel, and the pixel circuit comprises a driving module, a light-emitting module, a first light-emitting control module and an aging control signal line, and the driving module is used for controlling the light-emitting module to emit light according to a control signal of a control end of the driving module in a light-emitting stage. The first light-emitting control module is used for responding to a signal on the light-emitting control signal line to be switched on in the light-emitting stage and switched off in the aging stage, and the aging control signal line is used for writing aging voltage into the second end of the driving module in the aging stage. According to the pixel circuit, in the aging stage, the first light-emitting control module is driven to be turned off through the signal on the light-emitting control signal line, the light-emitting module is prevented from being lightened, the burn-in risk is reduced, meanwhile, the aging voltage is written into the second end of the driving module through the aging control signal line, and the burn-in risk is reduced. The voltage difference between the source electrode and the drain electrode of the driving module can be properly increased by adjusting the aging voltage, and the occurrence probability of bright spots is better reduced.

The utility model discloses a stock bin for containing silica gel particles, and relates to the technical field of silica gel particle production, the stock bin comprises a stock bin tank, the stock bin tank comprises a horizontally arranged outer tank and a containing tank arranged in the outer tank; a gap exists between the containing tank and the outer tank, and a supporting frame fixedly connected with the inner wall of the outer tank is annularly arranged on the outer wall of the containing tank. A feeding hopper communicated with the containing tank is arranged on the outer tank, and a sealing cover is arranged on the feeding hopper; a first through hole is formed in the containing tank; an air cavity is formed in the interlayer of the outer tank, an air hole communicated with the air cavity is formed in the inner wall of the outer tank, supporting sleeves are arranged at the two ends of the outer tank, an exhaust fan is arranged on one supporting sleeve, and the exhaust fan is communicated with the air cavity through a pipeline; a drying pipe is arranged on the side, away from the outer tank, of the other supporting sleeve. Dust and impurities are prevented from being mixed into the silica gel particles, the containing quality of the silica gel particles is improved, and the silica gel particles are prevented from being affected with damp in the stock bin tank.

The utility model discloses a storage device for degumming agent production, which comprises a heat preservation outer box and a glue storage inner box, the glue storage inner box is movably arranged in the heat preservation outer box, a first heat preservation plate for front side heat preservation is arranged on the front side wall in the heat preservation outer box, and a second heat preservation plate for rear side heat preservation is arranged on the rear side wall in the heat preservation outer box. A third heat preservation plate for left heat preservation is arranged on the left side wall in the heat preservation outer box, and a fourth heat preservation plate for right heat preservation is arranged on the right side wall in the heat preservation outer box; the top end of the glue storage inner box is connected with a sealing frame, a drying cavity of a hollow structure is formed in the sealing frame, and at least one ventilation net is embedded in the drying cavity. The degumming agent storage box is of a double-layer box body structure, the box body on the outer layer can isolate the influence of the external environment, the box body on the inner layer can directly store the degumming agent, and gap sealing and ventilation can be achieved, so that the degumming agent storage box has multiple long-term degumming agent storage functions such as heat preservation, dehumidification and illumination avoidance.

The invention provides a display panel, a preparation method thereof and a display device. The display panel comprises an array substrate, a liquid crystal layer and a color film substrate. The color film substrate comprises a first substrate, a black matrix and a plurality of color resistors, the black matrix comprises a plurality of openings, the color resistors are located on the side, away from the first substrate, of the black matrix, the color resistors cover the openings in the first direction, at least part of the color resistors are located in the openings, and the first direction is the direction perpendicular to the plane where the display panel is located; the display panel further comprises a near-field communication coil, the near-field communication coil is located in the display area and comprises a plurality of first wires which are electrically connected, the first wires are arranged on the black matrix, and in the first direction, the projection of the black matrix covers the projection of the first wires; the sum of the thickness of the black matrix and the first wiring is not greater than the thickness of the color resistor. While the size of the near field communication coil is flexibly adjusted, mutual interference between a near field communication coil signal and a display signal can be reduced, and the risk of color resistor stripping can be reduced.

The present invention proposes a new procedure about a photolithographic method for forming a black pattern such as a black matrix. The present invention relates to a black resist composition suitable for this new process and excellent in light-blocking effect. The present invention relates to a black resist composition including a near-infrared-permeable black pigment (A), a sensitizing dye (B) having absorption in a near-infrared region, a radical polymerization initiator or acid generator (C), and a binder resin (D) as essential components. The black pigment (A) here used is preferably a lactam-based pigment, a perylene-based pigment, and / or an azomethine-based pigment, and a cyanine dye, a squarylium dye, and / or a phthalocyanine dye are / is contained as suitable sensitizing dye(s), together with the black pigment. The present invention relates to a novel photolithographic process of a black pattern with application of near-infrared light.

This utility model discloses a light strip fixing tape with alignment function, belonging to the field of lighting equipment technology, used for fixing light strips. It includes a base film, a high-temperature resistant tape, several black and white adhesive strips, and a positioning film. The base film is a strip-shaped release film; the high-temperature resistant tape is a strip-shaped single-sided adhesive strip; the adhesive surface of the high-temperature resistant tape is attached to the base film; the black and white adhesive strips are block-shaped double-sided adhesive strips; one adhesive surface of the black and white adhesive strips is attached to the non-adhesive surface of the high-temperature resistant tape; several black and white adhesive strips are arranged in a row, corresponding one-to-one with the positions of the light strip's LED beads; the positioning film is a strip-shaped release film; the positioning film is attached to the other adhesive surface of the black adhesive strip; the side of the positioning film has positioning protrusions, which correspond to the LED bead gaps or LED bead positions in the light strip, i.e., the positioning protrusions are aligned or staggered with the black and white adhesive strips. This utility model can achieve precise alignment between the LED bead gaps and the black and white adhesive strips, avoiding the problem of overlap between the black and white adhesive strips and the LED bead areas.

The present application provides an OLED display panel and an OLED display device; the OLED display panel includes a drainage line, the drainage line is arranged in the area between adjacent light-emitting units, the drainage line is arranged on the side of the hole layer away from the light-emitting layer, and the drainage line is connected to the hole layer. The present application arranges the drainage line, the drainage line is arranged in the area between adjacent light-emitting units, so that the drainage line leads the leakage current between adjacent light-emitting units through the hole layer and the drainage line, thereby preventing the closed light-emitting unit from being lit, and the drainage line is arranged on the side of the hole layer away from the light-emitting layer, thereby preventing the drainage line from contacting the electron layer and affecting the display.

The flip COB packaging structure comprises a substrate, a copper circuit is arranged on the substrate, and the copper circuit comprises a plurality of chip bonding pads and wires electrically connected with the adjacent chip bonding pads; each chip bonding pad is welded with a flip LED chip electrically connected with the chip bonding pad through a die bonding solder; the outer contour size of the chip bonding pad is larger than the outer contour size of the flip LED chip corresponding to the chip bonding pad and the outer contour size of the solid crystal welding flux, so that the outer edge of the chip bonding pad protrudes out of the outer edge of the flip LED chip and the outer edge of the solid crystal welding flux. High-reflection white glue is filled between the adjacent chip bonding pads, the top of the high-reflection white glue protrudes upwards, and the highest point of the high-reflection white glue is higher than the top surfaces of the chip bonding pads; the substrate is further provided with fluorescent powder glue used for sealing the copper circuit, the flip LED chip and the high-reflection white glue. The invention has the advantage of improving the lighting effect and reliability of the light source.