30results about How to "Increase light incidence" patented technology

An embodiment of the invention provides a light source assembly, a backlight module and a curved surface display device which belong to the technical field of display and are capable of enhancing light entering rate of a light guide plate in the curved surface display device and improving the uniformity of screen brightness. The light source assembly comprises a light guide plate and an LED (light-emitting diode) light bar; the light guide plate is a light guide plate with a curved surface; the LED light bar is an arc light bar; curvature of the arc light bar matches with that of the light guide plate with the curved surface; the light guide plate with the curved surface is provided with a group of mutually parallel straight edges and a group of curved edges with the same curvature; the arc light bar is arranged on one side of the curved edges of the light guide plate with the curved surface. The light source assembly, the backlight module and the curved surface display device are suitable for the manufacturing of display devices.

A method and device are provided for measurement of various transmission and reflection values of transparent measurement objects having transparent layers in an inline coating system, and particularly the turbidity of the measurement object during a relative movement between the measurement object and measuring device. Transmission fractions are measured in two different radiation directions of a lighting source emitting diffuse light by two photodetectors, by which a fraction of diffuse light of the lighting source is suppressed in one direction.

A light-emitting panel includes semiconductor light-emitting devices each having a first surface and a second surface, the first surface being placed on a surface of a substrate; lenses each provided in close contact with at least a center portion of the second surface of a corresponding semiconductor light-emitting device. The light-emitting panel further includes a connection wiring being in contact with a region around the center portions while having openings corresponding to the respective center portions.

A light detecting device is fabricated to have the following structure: a light receiving element having a protective layer, in which a transparent conductive electrode, a semiconductor layer, an electrode and the protective layer are successively formed on a transparent substrate, is arranged on a first face of an insulating substrate having a terminal electrode formed to be exposed to first and second faces of the insulating substrate in such a manner that the protective layer is opposed to the first face of the insulating substrate; and further the transparent conductive electrode and the electrode are connected electrically to the terminal electrode exposed to the first face of the insulating substrate. The light detecting device having this structure is surface-mounted on a circuit board to connect the terminal electrode exposed to the second face of the insulating substrate to an external terminal of the circuit board.

The invention discloses a backlight module and a liquid crystal display device. The backlight module comprises a backboard, a light guide plate, a light source and a rubber frame, wherein the backboard is used for accommodating the light guide plate, the light source and the rubber frame and comprises a base plate, a first sidewall and a second sidewall, wherein the first sidewall and the second sidewall extend towards the same direction along the two sides of the base plate; the light guide plate is arranged close to the base plate and comprises a first side surface and a second side surface which are arranged oppositely; the first side surface is arranged close to the light source and used as a light incident surface of the light guide plat; the rubber frame is arranged on the base plate and comprises a third sidewall and a fourth sidewall; the third sidewall is arranged between the first sidewall and the light source; the fourth sidewall is arranged between the second sidewall and the second side surface; the rubber frame also comprises at least one pressing mechanism; the pressing mechanism extends towards the second side surface of the light guide plate from the fourth sidewall and leans against the second side surface of the light guide plate so that the first side surface of the light guide plate is close to a light exit surface of the light source; the pressing mechanism and the rubber frame are integrally formed. The light guide plates of the backlight module and the liquid crystal display device are relatively high in light transmittance.

A backlight assembly includes a receiving container, a first light source module and a first light source cover. The receiving container includes a bottom portion, a first sidewall and a second sidewall connected to the bottom portion. The first light source module is supported by the bottom portion and adjacent to the first side wall. The first light source cover makes contact with an exterior surface of the first sidewall. The first light source cover surrounds the second sidewall so that a first end portion of the first light source cover covers the first light source module.

The present disclosure provides a light source module that includes a substrate, a plurality of light barriers on a surface of the substrate and spaced apart from each other, a plurality of light source packages on the surface of the substrate and positioned between the plurality of light barriers, and a total-reflection induction layer on the plurality of light source packages. The total-reflection induction layer has a flat surface opposite the plurality of light source packages. According to the various embodiments provided herein, the amount of light incident on a light guide plate increases, and a heat radiation effect is improved.

The invention discloses a high-stability, low-dark-current fully-inorganic perovskite photoelectric detector and a preparation method thereof. The inverted-structure photoelectric detector comprises atransparent conductive positive electrode, an ultra-thin aluminum oxide layer, an fully-inorganic perovskite light absorbing layer, an electron transport layer and a metal negative electrode. The preparation method adopts ALD to deposit an ultra-thin aluminum oxide thin film and a titanium oxide thin film, the prepared device has low dark current and high stability, and the device still exhibitsgood photoelectric performance after being exposed to the air for more than 100 days. Through introducing the ultra-thin titanium oxide thin film to an interface between the perovskite and the metal electrode, the interface energy band matching is achieved, the response speed of the device is accelerated, and the sensitivity of the device is improved. The preparation method disclosed by the invention is suitable for manufacturing flexible detectors, and provides an effective, feasible and low-cost scheme for realizing the industrialization of inorganic perovskite photoelectric detectors and flexible devices thereof.

A sidelight type spread illuminating apparatus includes a light guiding plate; a plurality of circuit boards arranged so as to face a side end face of the light guiding plate; a light source mounted on the circuit boards; and a connector that electrically connects the circuit boards adjacent to each other. The connector includes a socket and a plug that are removable therebetween. The socket and the plug are configured to be removable in a direction parallel to each mounting surface of the light sources of the circuit boards in a state that either the socket or the plug is fixed to ends of the circuit boards adjacent to each other.

The invention relates to arrangements for the display of images of a scene or object, that alternatively provides either a three-dimensional or plain two-dimensional visual appearance to several viewers without any aids. In particular, the invention relates to an arrangement comprising a transflective image display device, a plane wavelength filter array arranged behind the image display device (in a viewer's viewing direction), and an illuminator arranged behind the wavelength filter array (in a viewer's viewing direction), in which, in a first mode of operation, light of the illuminator reaches the viewer passing through at least a share of the light-transparent filter elements and subsequently through a share, assigned to them, of the pixels of the image display device, so that the scene or object is visible to the viewer in three dimensions, and, in a second mode of operation, light incident on the front side of the image display device is used, thanks to the transflective properties of the latter, to illuminate it as homogeneously as possible, so that at least part of the scene or object is visible to the viewer in two dimensions.

The invention relates to a display device. The display device comprises a display panel and a light guide plate arranged on a light incident side of the display panel, wherein the display panel comprises a substrate; when the temperature is between 0 DEG C and 150 DEG C, the difference value of expansion rates of the substrate and the light guide plate is between 0% and 0.5%. Besides, the display device further comprises a light emitting unit arranged on one side edge of the light guide plate.

The present disclosure provides a light source assembly, a backlight module and a curve display apparatus. It relates to the technical field of display, may improve the light incidence ratio of a light guide plate in the curve display apparatus and enhance the uniformity of the picture brightness. The light source assembly includes a light guide plate and a LED lamp bar, wherein the light guide plate is a curve light guide plate and the LED lamp bar is an arc-shaped lamp bar which has a curvature matched with the curvature of the curve light guide plate, and wherein the curve light guide plate has a set of straight sides parallel to each other and a set of curve sides having the same curvature, the arc-shaped lamp bar being arranged on a side of the curve light guide plate with the curve sides.

A camera is provided with an object lens, an aperture and a guiding device for an image-recording medium. The camera includes a device for providing generally scattered or white light to be incident on a first portion of the image-recording medium and a light adjusting device for varying the dissipation of the white or scatted light across the aperture of the camera in relation to the exposure time across the aperture. The camera also includes a lens system with an object lens and an additional focusing device with a focal length in a first area being infinite and in a second area being a relatively short focusing light on the image close to the lens system, for example, on the plate held in front of the lens system. A light enhancement device is also provided for increasing the light on the first portion of the image-recording medium.

A luminescent solar concentrator (10) is disclosed. The luminescent solar concentrator (10) has a light guide (12) defined at least in part by a reflector (14). It has a plurality of light absorbing centers (24) located in the light guide. The light absorbing centers (24) are configured to absorb sunlight (25) instant on the light guide (12). There are a plurality of light emitting centers (26) located in the light guide (14). Each of the plurality of light emitting centers (26) are capable of emitting light (18) after at least some of the energy of the absorbed sunlight (25) is transferred (28) from a respective one of the light absorbing centers (24). Each of the plurality of light emitting centers (26) are orientated relative to the reflector (14) to enhance the proportion of light emitted by the respective light emitting center (26) that is reflected by the reflector (14) and so guided within the light guide (12).

A camera (1) is provided with an object lens, an aperture and guiding means for an image recording medium. The camera includes a means for providing generally scattered or white light to be incident on a first portion of the image recording medium and a light adjusting means for varying the dissipation of the white or scattered light across the aperture of the camera in relation to the exposure time across the aperture. The camera also includes a lens system with an object lens and an additional focusing means with a focal length in a first area being infinite and in a second area being relatively short focusing light on the image close to the lens system, for example on the plate (10) held in front of the lens system. Light enhancement means are also provided for increasing the light on the first portion of the image recording medium.

The invention relates to a laser radar transmitting system, which comprises an emission end optical unit, a fast axis collimation FAC array and a laser diode LD emission array, and is characterized inthat the FAC array is used for carrying out fast axis direction correction on laser beams emitted by the LD emission array; when a laser beam emitted by the LD emission array passes through the FAC array, the divergence angle of the laser beam in the fast axis direction is corrected, and then the laser beam is emitted through the emission end optical unit. By adopting the laser radar transmittingsystem, the size is greatly reduced, and the cost is also greatly reduced.

The invention discloses a display panel, a preparation method thereof and a display device, which are used for relieving display defects caused by non-luminescence of a blind hole area and improving adisplay effect. According to the invention, the display area of the display panel comprises a blind hole area and an optical compensation area surrounding the blind hole area. The optical compensation area comprises an optical compensation sub-pixel surrounding the blind hole area and a reflection structure located on the side, close to the blind hole area, of the optical compensation sub-pixel;in the direction perpendicular to the plane where the display panel is located, the orthographic projections of part of the reflection structures are overlapped with the orthographic projections of the optical compensation sub-pixels.

The invention provides a backlight module and a liquid crystal display device. The backlight module comprises a back board, a light guiding plate, a light source and a glue frame. A containing space is formed by the back board and the glue frame and used for containing the light guiding plate and the light source. The light guiding plate is close to the back board. The light guiding plate comprises a first side face and a second side face which are opposite to each other. The first side face is close to the light source to serve as the light inlet face of the light guiding plate. The back board comprises a back board body and at least one pressing mechanism which extends into the containing space from the back board body and abuts against the second side face of the light guiding plate so that the first side face of the light guiding plate can be close to the light outlet face of the light source, and the pressing mechanism and the back board body are integrally formed. According to the backlight module and the liquid crystal display device, the light guiding plate has a high light inlet rate.

The invention belongs to the technical field of solar cells, and provides a back film structure of a PERC solar cell, a preparation method thereof, a solar cell and a solar cell assembly. The back film structure of the PERC solar cell comprises a first silicon oxynitride layer, a silicon nitride layer, a second silicon oxynitride layer and a silicon oxide layer which are sequentially formed from top to bottom on the back surface of a silicon wafer substrate, wherein the silicon nitride layer is composed of at least two layers of silicon nitride films, and the refractive indexes of the silicon nitride films of all the layers are sequentially reduced from top to bottom. The back film structure of the PERC solar cell does not need to be prepared from a TMA material, so that the production cost of the PERC solar cell can be greatly reduced; and meanwhile, the refractive index of the silicon nitride layer is gradually reduced from top to bottom, so that the light incidence rate of the back surface of the PERC solar cell can be fully improved, the light absorption of the back surface of the PERC solar cell is increased, and then the conversion efficiency of the PERC solar cell is improved.

The present application relates to a laser radar transmitting system, comprising: a transmitting end optical unit, a fast-axis collimation FAC array and a laser diode LD transmitting array, the FAC array is used to fast-axis the laser beam emitted by the LD transmitting array Direction correction: when the laser beam emitted by the LD emission array passes through the FAC array, the divergence angle of the fast axis direction of the laser beam is corrected, and then emitted through the optical unit at the emission end. Using the laser radar launch system, its volume is greatly reduced, and its cost is also greatly reduced.

A backlight module includes a light-guiding assembly and a light source assembly. The light-guiding assembly includes a back cover, a reflector, a light-guiding plate (LGP), a number of optical correcting elements, and a frame. The light source assembly includes a main body and a light source. The back cover defines a light input area. The main body includes two reflection sides. The two reflection sides curve over the light source. The main body defines a main body opening between the two reflection sides. The light source assembly further includes a lens received in the main body opening. The light emitted from the light source and reflected by the two reflection sides are transmitted to outside of the main body through the lens.

An optical system comprises a light source and a light integration module, which comprises a light integration rod, an optical assembly and an anti-reflection coating. The light integration rod has an entrance, which is covered by the optical assembly. The optical assembly has a transparent surface, and a surface area of the transparent surface is greater than a cross-sectional area of the entrance of the light integration rod. The anti-reflection coating is formed on the transparent surface. After an incident light is transmitted through the anti-reflection coating, it is transmitted through the optical assembly along a light path, and then outputted to the entrance of the light integration rod.

An optical system comprises a light source and a light integration module, which comprises a light integration rod, an optical assembly and an anti-reflection coating. The light integration rod has an entrance, which is covered by the optical assembly. The optical assembly has a transparent surface, and a surface area of the transparent surface is greater than a cross-sectional area of the entrance of the light integration rod. The anti-reflection coating is formed on the transparent surface. After an incident light is transmitted through the anti-reflection coating, it is transmitted through the optical assembly along a light path, and then outputted to the entrance of the light integration rod.

A backlight assembly includes a receiving container, a first light source module and a first light source cover. The receiving container includes a bottom portion, a first sidewall and a second sidewall connected to the bottom portion. The first light source module is supported by the bottom portion and adjacent to the first side wall. The first light source cover makes contact with an exterior surface of the first sidewall. The first light source cover surrounds the second sidewall so that a first end portion of the first light source cover covers the first light source module.

A display device wherein the rear side can be easily seen through normally, and a prescribed display pattern can be displayed by lighting it as needed. A display pattern (20) is formed with fine recessed parts (29) provided on at least one plane of a translucent board (10), and at least one light source (30) is arranged on a side edge plane of the translucent board (10). The area density of the fine recessed parts (29) forming the display pattern (20) is permitted to be 20% or less, and an aperture area of one recessed part (29) is permitted to be 0.03mm<2> or less.

The invention discloses an all-inorganic perovskite photodetector and a preparation method thereof. The photodetector with an inverted structure includes a transparent conductive positive electrode, an ultra-thin aluminum oxide layer, an all-inorganic perovskite light absorption layer, an electron transport layer, and a metal negative electrode. The preparation method adopts ALD to deposit ultra-thin aluminum oxide film and titanium oxide film, and the obtained device has low dark current and high stability, and the device still exhibits good photoelectric performance after being exposed to air for more than 100 days. An ultra-thin titanium oxide film is introduced at the interface between the perovskite and the metal electrode to achieve interface energy band matching and improve the response speed and sensitivity of the device. The preparation method of the invention is suitable for making flexible detectors, and provides an effective, feasible and low-cost solution for realizing the industrialization of inorganic perovskite photodetectors and flexible devices thereof.