Abstract: A micro-nano channel structure, a method for manufacturing the micro-nano channel structure, a sensor, a method for manufacturing the sensor, and a microfluidic device are provided. The micro-nano channel structure includes: a base substrate; a base layer, on the base substrate and including a plurality of protrusions; a channel wall layer, on a side of the plurality of the protrusions away from the base substrate, the channel wall layer has a micro-nano channel; a recessed portion is provided between adjacent protrusions of the plurality of the protrusions, an orthographic projection of the micro-nano channel on the base substrate is located within an orthographic projection of the recessed portion on the base substrate. The micro-nano channels have a high resolution or an ultra-high resolution, and have different sizes and shapes.

Abstract: The present invention discloses a preparation method for 2-4 ?m battery-grade cobalt tetroxide, comprises following steps: 1) adding a cobalt salt solution and an alkaline solution by parallel flows to a reactor with a base solution and an air flow, controlling pH value of a system by adjusting flow rate of the alkaline solution for coprecipitation reaction at a certain stirring rate, decreasing the pH value of the reaction system and increasing flow rate of the cobalt salt solution after the reaction solutions begin to overflow; 2) aging and drying the cobalt oxyhydroxide slurry in sequence; 3) calcining the dried cobalt oxyhydroxide. By adopting this method, tap density of the battery-grade cobalt tetroxide obtained is much higher than that of cobalt tetroxide with a same particle size specification prepared by the prior art.

Abstract: The present disclosure relates to a method and device for playback optimization. The method specifically includes: upon receiving a request from a client, querying whether an optimized playback parameter related to a multimedia resource has been stored, wherein the request is associated with the multimedia resource; and if the optimized playback parameter has been stored, transmitting the optimized playback parameter to the client, so as to have the multimedia resource played by the client according to the optimized playback parameter. The method of playback optimization of embodiments of the present disclosure allows hardware advantage to be brought into play in the process of multimedia resource playback, thus enhancing playback effects. Moreover, an assessment of the content of the entire multimedia resource can be performed, thus emphasizing an idea being expressed by a picture, and enhancing comprehension of the content of the picture.

Abstract: The present disclosure relates to a composite cable, which comprises a first wire assembly and a second wire assembly, and each wire of the second wire assembly is surrounded by an insulating layer. The composite cable further comprises: a sheath made of insulating material and configured to enclose the first wire assembly and the second wire assembly; and a shield comprising different kinds of metal wires and configured to surround the first wire assembly, wherein the first wire assembly is capable of transmitting signals, and the second wire assembly is capable of transmitting power supply. The composite cable according to the present disclosure is excellent in shielding performance for different requirements.

Abstract: The present disclosure relates to a composite cable, which comprises a first wire assembly and a second wire assembly, and each wire of the second wire assembly is surrounded by an insulating layer. The composite cable further comprises: a sheath made of insulating material and configured to enclose the first wire assembly and the second wire assembly; and a shield comprising different kinds of metal wires and configured to surround the first wire assembly, wherein the first wire assembly is capable of transmitting signals, and the second wire assembly is capable of transmitting power supply. The composite cable according to the present disclosure is excellent in shielding performance for different requirements.

Abstract: A method and a system for enhancing colors of an image are disclosed. The method comprises: converting the color components in an RGB color space of each pixel in an image into a hue component, a saturation component, and a value component in an HSV color space of the pixel; stretching the saturation component when it is greater than 0 and smaller than 1; converting the hue component, the stretched saturation component, and the value component into an enhanced red component, an enhanced green component, and an enhanced blue component in the RGB color space. Through the method, the phenomenon of color shift can be prevented, thus enabling the image to be brighter and vivider. Hence, the viewers' visual experience can be improved. The method can relieve the problems of color shift and picture washout.

Abstract: A direct-type backlight module and a manufacturing method thereof are provided. The direct-type backlight module includes: a rear plate and a backlight source installed therein. The backlight source includes a LED light bar including LEDs. The LEDs have a phosphor layer disposed thereon. The phosphor layer and the LEDs have a colloid material layer sandwiched therebetween for thermal isolation. The present invention disposes the colloid material layer so as to avoid heat generated by the LEDs to be directly transferred to the phosphor layer to cause efficiency reduction, meanwhile there is no need of a large amount of phosphor layer to fabricate a large-sized film sheet and thus the material usage of the phosphor layer is reduced. The present invention can effectively use the phosphor layer to improve color saturation of display while ensuring the efficient use of LED brightness and the life span by the colloid material layer.

Abstract: A light source module comprises a substrate, light emitting components arranged in an array on the substrate, an internal wiring portion formed on the substrate and connected to the light emitting components, an external wiring portion formed on the substrate and isolated from the internal wiring portion, a first connecting unit formed on a first side of the substrate and connected to the external wiring portion and a second connection unit formed on a second side of the substrate and connected to the internal and the external wiring portion. The disclosure reduces the number of the leads required for the light source module when installing the light source module into the backlight module. The disclosure simplifies the assembly process, and reduces production costs. Further, the occupied areas of the leads in the backlight module are reduced to improve space utilization in the backlight module.

Abstract: The present invention discloses an optical testing device includes a base, a holder, and a number of illuminating modules. The base defines a sliding groove extending along a first direction in a top surface thereof. The holder slides along a second direction on the top surface of the base. The interval regulator is connected to the holder. The illuminating modules are slidably received in the sliding groove. Each of the illuminating modules comprises a circuit board and a single lighting element set on the circuit board. The interval regulator drives the holder to slide along a second direction so that a distance between the holder and the illuminating modules is regulated. The first direction is not parallel to the second direction.

Abstract: A double-sided LCD includes a first liquid crystal panel, a second liquid crystal panel arranged opposite to the first liquid crystal panel, and a backlight module arranged therebetween. The backlight module includes: a middle frame being arranged and assembled between the first liquid crystal panel and the second liquid crystal panel; and a light emitting assembly comprises a first lamp board facing toward the first liquid crystal panel, a second lamp board facing toward the second liquid crystal panel, and at least two middle plate being arranged between the first lamp board1 and the second lamp board, a gap is formed between two adjacent middle plates, and the first lamp board and the second lamp board respectively comprises a plurality of light sources. In addition, a backlight module for double-sided LCDs is also disclosed.

Abstract: A light guiding system includes an ambient light gathering system, multiple light guiding devices and a wedge light guiding bar. The ambient light gathering system facing ambient light is used for absorbing the ambient light. Each light guiding device absorbs the absorbed light. The wedge light guiding bar has a light-out surface and a light-in surface coupled to the light-out surface. The light-in surface is a wide surface coupled to an inclined surface. The light-out surface is opposite to the inclined surface and next to a light-in side of a light guide plate. The wedge light guiding bar for use in the light guiding system, an edge-lighting backlight module and an LCD device can reduce cost of material and weight. Also, the light uniformity of the light output end is improved and the optical quality of the edge-lighting backlight module is raised.

Abstract: A white balance adjustment method for a display, the method including acquiring spectrum stimulus values of q gray scales of red, green, blue and white of a display panel of a tested display; determining spectrum stimulus value brightness of white and green, and performing interpolation segmenting on brightness of white and green; normalizing brightness of white and green; acquiring an ideal brightness normalized value of white and an ideal brightness normalized value of green; comparing the normalized value for brightness white and the ideal brightness normalized value corresponding to the white and the normalized value for brightness of green and the ideal brightness normalized value corresponding to the green respectively, based on the closest principle, and determining optimal gray scales of white and green; determining a target chromaticity, and changing the gray scales of red and blue, acquiring a RGBW combination which is closest to the target chromaticity.

Abstract: The present invention discloses an optical testing device includes a base, a holder, and a number of illuminating modules. The base defines a sliding groove extending along a first direction in a top surface thereof. The holder slides along a second direction on the top surface of the base. The interval regulator is connected to the holder. The illuminating modules are slidably received in the sliding groove. Each of the illuminating modules comprises a circuit board and a single lighting element set on the circuit board. The interval regulator drives the holder to slide along a second direction so that a distance between the holder and the illuminating modules is regulated. The first direction is not parallel to the second direction.

Abstract: The present invention disclosed a backlight module comprising a light collection system, a light guide plate and a plurality of optical fibers, wherein all light incident ends of the plurality of optical fibers are connected to the light collection system for receiving sunlight; the backlight module further includes an optical fiber connector; the plurality of optical fibers are arranged in parallel on the surface of the light guide plate, with all their light emitting ends flush with the light incident end of the light guide plate; the optical fiber connector abuts against the light emitting end of the plurality of optical fibers and the light incident end of the light guide plate, respectively, used for guiding the sunlight emitting from the light emitting end of the plurality of optical fibers to enter the light guide plate from the light incident end of the light guide plate.

Abstract: An LCD having a backlight module is proposed. The backlight module includes an ambient light collector for collecting ambient light; a back plate; a diffuser plate on the back plate; a plurality of optical fibers straightly fixed between the diffuser plate and the back plate and coupled to the ambient light collector. Microstructure is formed on the surface of the optical fibers straightly fixed between the diffuser plate and the back plate, and the microstructure makes light from the optical fibers evenly being emitted. The backlight module utilizes microstructure formed on a surface of optical fibers for evenly distributing light from the surface of the optical fibers. In hence, it effectively guides ambient light into the backlight module via the optical fibers and ensures at the same time that the light is evenly distributed to the backlight module.

Abstract: A direct-type backlight module and a manufacturing method thereof are provided. The direct-type backlight module includes: a rear plate and a backlight source installed therein. The backlight source includes a LED light bar including LEDs. The LEDs have a phosphor layer disposed thereon. The phosphor layer and the LEDs have a colloid material layer sandwiched therebetween for thermal isolation. The present invention disposes the colloid material layer so as to avoid heat generated by the LEDs to be directly transferred to the phosphor layer to cause efficiency reduction, meanwhile there is no need of a large amount of phosphor layer to fabricate a large-sized film sheet and thus the material usage of the phosphor layer is reduced. The present invention can effectively use the phosphor layer to improve color saturation of display while ensuring the efficient use of LED brightness and the life span by the colloid material layer.

Abstract: A sunlight collecting device provided in the present invention includes a lens substrate, a plurality of Fresnel lens, a connector substrate, a plurality of optical fiber connectors, and a light-tracking substrate. The lens substrate has a plurality of circular openings. The Fresnel lenses correspond to the circular opening and are disposed on the lens substrate. The connector substrate is disposed parallel to the lens substrate and away from the lens substrate with a focal length. The optical fiber connectors are adjustably disposed on the connector substrate. The light-tracking substrate is disposed between the lens substrate and the connector substrate for simultaneously rotating the lens substrate and the connector substrate such that the Fresnel lenses are directly opposite to the sunlight. An LCD using the sunlight as a backlight source is further provided in the present invention.

Abstract: The present invention provide a sunlight collection device, it comprises a concentrator array composed by a plurality of concentrators and a light sensor electrically connected to the controller, the concentrator comprises a collecting cup and a collecting lens fixed to the collecting cup, a optical fiber runs through and is fixed at the bottom of the collecting cup, a plurality of light detection units which are electrically connected to the controller are provided around the optical fiber at the bottom of the collecting cup.

Abstract: A double-sided LCD includes a first liquid crystal panel, a second liquid crystal panel arranged opposite to the first liquid crystal panel, and a backlight module arranged therebetween. The backlight module includes: a middle frame being arranged and assembled between the first liquid crystal panel and the second liquid crystal panel; and a light emitting assembly comprises a first lamp board facing toward the first liquid crystal panel, a second lamp board facing toward the second liquid crystal panel, and at least two middle plate being arranged between the first lamp board1 and the second lamp board, a gap is formed between two adjacent middle plates, and the first lamp board and the second lamp board respectively comprises a plurality of light sources. In addition, a backlight module for double-sided LCDs is also disclosed.

Abstract: A white balance adjustment method for a display, the method including acquiring spectrum stimulus values of q gray scales of red, green, blue and white of a display panel of a tested display; determining spectrum stimulus value brightness of white and green, and performing interpolation segmenting on brightness of white and green; normalizing brightness of white and green; acquiring an ideal brightness normalized value of white and an ideal brightness normalized value of green; comparing the normalized value for brightness white and the ideal brightness normalized value corresponding to the white and the normalized value for brightness of green and the ideal brightness normalized value corresponding to the green respectively, based on the closest principle, and determining optimal gray scales of white and green; determining a target chromaticity, and changing the gray scales of red and blue, acquiring a RGBW combination which is closest to the target chromaticity.