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64results about How to "Reduce the amount of reflection" patented technology

Optical transmission and receiving device for implementing passive alignment of components and method for passively aligning components

An optical device for implementing passive alignment of parts and a method therefore, more particularly an optical device and a method therefore that utilize an alignment reference part 115 arranged on the substrate 110 to passively align an optical element part 111 with a lens-optical fiber connection part 120.
For the passive alignment of parts, connection pillars 115b of an alignment reference part 115 are coupled to substrate holes 114, one or more light-emitting elements 111a and one or more light-receiving elements 111b are aligned in a row in a particular interval with respect to alignment holes 115a arranged opposite each other in the alignment reference part 115, a lens-optical fiber connection part 120 is aligned with respect to the alignment holes 115a, and an optical fiber 133 is aligned with the optical alignment point at a surface 122b of a prism forming a portion of the lens-optical fiber connection part 120. In addition, the optical fiber 133 is secured with an optical fiber pin 131, after which a metal case 143 is covered and coupled with a case securing pin 141.
The optical device for implementing passive alignment of parts provides the advantages of simplifying the passive optical alignment for multiple channels, so as to minimize alignment error, and of reducing and simplifying the structure of the optical modules and minimizing the number of parts used, so as to lower the costs of the optical modules.
Owner:SAMJIN C&I CO LTD

LED light-emitting panel and preparation method thereof, LED display screen

The invention discloses an LED light-emitting panel and a preparation method thereof, and an LED display screen. The LED light-emitting panel comprises a transparent circuit substrate, a plurality ofLED bare chips, a transparent isolation layer, a reflective layer, a transparent refractive adhesive layer and a transparent protective layer. The transparent isolation layer is arranged on the transparent circuit substrate, the transparent isolation layer comprises a plurality of through holes, the through holes penetrate through the transparent isolation layer to expose part of the surface of the transparent circuit substrate, and an LED bare chip is mounted on the transparent circuit substrate exposed by each through hole; The reflective layer is arranged on the side wall of the through hole; A transparent refractive adhesive layer is filled in the through hole and a side of the transparent isolation layer away from the transparent circuit substrate; The transparent protective layer islocated at a side of the transparent refractive adhesive layer away from the transparent circuit substrate; Wherein the refractive index of the transparent refractive glue layer is greater than 1.5. The technical proposal provided by the embodiment of the invention increases the permeability of the LED display screen and improves the display effect of the LED display screen.
Owner:VITROLIGHT TECH CO LTD

Display panel and display device

The invention provides a display panel and a display device. The display panel comprises a display substrate, the display substrate comprises a light-emitting area and a transparent area, and the light-emitting area is adjacent to the transparent area; the display substrate further comprises a light-emitting unit, the light-emitting unit comprises an anode, a light-emitting functional layer and a cathode which are sequentially stacked; the orthographic projection of the cathode on the display substrate covers the light-emitting area; the display substrate further comprises an anti-reflection structure, the anti-reflection structure is arranged on the display side of the display substrate, the anti-reflection structure comprises a color resistance layer and a low-refractive-index layer, and the low-refractive-index layer is arranged on the side, away from the display substrate, of the color resistance layer; the refractive index of the low-refractive-index layer is close to that of air; the orthographic projection of the color resistance layer on the display substrate covers the light-emitting area; and the orthographic projection of the low-refractive-index layer on the display substrate covers the light-emitting area and the transparent area. By arranging the anti-reflection structure, the overall reflectivity of the display panel can be reduced, and the viewing effect of the display panel is improved.
Owner:BOE TECH GRP CO LTD +1

Optical transmission and receiving device for implementing passive alignment of components and method for passively aligning components

An optical device for implementing passive alignment of parts and a method therefore, more particularly an optical device and a method therefore that utilize an alignment reference part 115 arranged on the substrate 110 to passively align an optical element part 111 with a lens-optical fiber connection part 120. For the passive alignment of parts, connection pillars 115b of an alignment reference part 115 are coupled to substrate holes 114, one or more light-emitting elements 111a and one or more light-receiving elements 111b are aligned in a row in a particular interval with respect to alignment holes 115a arranged opposite each other in the alignment reference part 115, a lens-optical fiber connection part 120 is aligned with respect to the alignment holes 115a, and an optical fiber 133 is aligned with the optical alignment point at a surface 122b of a prism forming a portion of the lens-optical fiber connection part 120. In addition, the optical fiber 133 is secured with an optical fiber pin 131, after which a metal case 143 is covered and coupled with a case securing pin 141. The optical device for implementing passive alignment of parts provides the advantages of simplifying the passive optical alignment for multiple channels, so as to minimize alignment error, and of reducing and simplifying the structure of the optical modules and minimizing the number of parts used, so as to lower the costs of the optical modules.
Owner:CELLCUBES CO LTD

Display panel, driving method thereof and display device

ActiveCN111029390AAvoid the problem of large footprintSet narrowStatic indicating devicesSolid-state devicesDisplay contrastLight reflection
The invention discloses a display panel, a driving method thereof and a display device. The display area comprises the photosensitive device setting area, and when a photosensitive device is arrangedin the photosensitive device setting area, the problem that the occupied area is large when the photosensitive device is arranged on a frame can be avoided, so that the frame can be arranged narrower,the screen-to-body ratio is increased, and the design of a narrow frame is realized. Moreover, when the photosensitive device is in a working state; therefore, a first structure has the first light transmittance; more light can be incident into the photosensitive device through the first structure, the performance of photosensitive device is improved, when the photosensitive device is in a non-working state and the display panel is in the display state, if the first structure has the second light transmittance, the amount of light penetrating through a light-transmitting area can be reduced through the first structure, and then the amount of light reflection of wires located in the light-transmitting area is reduced, so that the display contrast ratio is raised, the display effect is improved, and meanwhile, the reliability of the display device is improved.
Owner:WUHAN TIANMA MICRO ELECTRONICS CO LTD

Tunnel piston effect mitigation device

The invention relates to the field of tunnel engineering, and particularly discloses a tunnel piston effect mitigation device. The tunnel piston effect mitigation device comprises a mounting assembly,a plurality of high-pressure wave absorption assemblies and a plurality of exhaust assemblies, wherein the mounting assembly comprises an arc-shaped isolation hood arranged on the inner wall of a tunnel and an arc-shaped functional hood arranged in the isolation hood, the arc shape of the isolation hood is consistent with the inner wall of a tunnel, the outer surface of the isolation hood is attached to the inner wall of the tunnel, the arc shape of the functional hood is consistent with the inner surface of the isolation hood, the outer surface of the functional hood is attached to the innersurface of the isolation hood, the high-pressure wave absorption assemblies comprise a plurality of piston pipes and a plurality of pistons, the piston pipes are all installed on the functional hoodin communicating mode, the ends, facing the interior of the functional hood, of the piston pipes are air inlets, at least one piston is arranged in each piston pipe in a sliding mode, the exhaust assemblies comprise exhaust pipes, the exhaust pipes are installed on the functional hood, a plurality of air inlets are evenly distributed in the faces, facing the interior of the functional hood, of theexhaust piped. The problem that high-voltage waves are likely to be generated when a high-speed rail enters a tunnel is solved.
Owner:温州融宸科技有限公司
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