213 results about "Laser video display" patented technology

The invention discloses a projection imaging correction method and apparatus, and a laser TV. The embodiment of the invention provides a projection imaging correction method, comprising the followingsteps: obtaining a specified area image, wherein the specified area image comprises a projection mage of an original image and a screen image, the specified area image has a first coordinate system, and the original image has a second coordinate system; obtaining a first conversion relation of the first coordinate system and the second coordinate system; calculating vertex angle coordinates of theprojection mage of the original image, and the vertex angle coordinates of the screen image; calculating a target image coordinate by using the first conversion relation, the vertex angle coordinatesof the projection mage of the original image and the vertex angle coordinates of the screen image; and using the target image coordinate to correct the original image. According to the embodiment ofthe invention, no user operation is needed, so that the projection system can be debugged without a professional debugger.

The invention discloses a laser display system and a laser display method based on electro-optical deflection speckle suppression. The system comprises a laser device for generating laser, a polarizer for generating linear polarization light in a specific polarization direction, an electro-optical deflector for deflecting light beams through electro-optical modulation, a long-focal-length focusing lens for focusing the light beams, a scatter plate for scattering the focused light beam and further reducing the coherence of light fields, a dodging module which consists of a micro lens array, a light flux pipe and a focusing lens and is used for collecting the scattered light fields and shaping the light, a linear space light modulator for generating an image and a projection lens component for projecting the image on a screen. The laser display system is simple, controllable, high in stability, low in loss and free of mechanical motion and has a stable structure, and high-quality laser display is realized.

The invention relates to a color gamut expansion mapping system of laser television and a method thereof. The method thereof, which is simple and convenient, can sufficiently represent wide color gamut of laser display equipment and comprises the steps: 1) evenly sampling on RGB color cube surface and storing according to a set order; 2) computing the CIELUV values of sampling points under PLA-system color television standard color gamut and laser display color gamut, so as to form two color gamut boundaries; 3) evenly dividing RGB space into 16x16x16 small cubes and computing the CIELUV values of the peaks of the small cubes; in CIELUV space, solving the intersection points between a straight line, determined by inputting color points and a central point of lightness axis, and two color gamut boundaries; 4) determining the proportion for extension according to the ratio of two intersection points; 5) converting LUV values after extension into RGB drive values for the laser display equipment; and 6) storing the mapping values of the peaks of the small cubes, namely the obtained RGB drive values for the laser display equipment, in a three-dimensional lookup table to construct the color gamut mapping system, and implementing color gamut expansion mapping on any input RGB value in a manner of table lookup and interpolation.

The invention relates to a virtual expansion method of laser television color gamut based on a 1931CIE (Coherent Infrared Energy)-XYZ system. The invention has the advantages that the features of laser large color gamut and high saturation are fully utilized so that the expression color of television images is enriched, the images presented are more graduated and more close to the true color of the nature, and the like. The method comprises the following steps: step 1. performing coordinate transformation under the 1931CIE-RGB system to obtain a coordinate under the CIE1931 color space; step 2. performing laser display matrix transformation; step 3, solving a virtual expansion factor; step 4, expanding equal tone; and step 5, establishing a three-dimensional lookup table to obtain virtual expansion numerical value to be output according to RGB value for inputting television signals by a cube interpolation algorithm method so as to realize virtual expansion finally.

The invention relates to optical thin film technology, and more particularly, to an optical projection screen for display and a manufacturing method thereof. In order to solve the problem that high brightness gains and wide viewing angles can not be achieved in existing projection screens, the invention provides the optical projection screen for display and the manufacturing method thereof. The screen comprises a prism layer and a base layer; the prism layer is adhered to the surface of the base layer; and the prism layer is composed of a plurality of condensing microstructures formed by an adhesive and reflective particles. The reflective particles are dispersed in the adhesive. The content of the adhesive is 100 parts, and the content of the reflective particles is 1-200 parts. The parts are parts by weight. The projection screen is with a high brightness gain, a wide viewing angle, and is widely used in laser TV and projector technology.

The invention provides a light source device for laser display, which is characterized in that the light source device for laser display comprises a plurality of lasers for outputting polarization laser light and a beam combining device combining laser light transmitted by the plurality of lasers, wherein, the laser light transmitted by the lasers is respectively irradiated into the beam combining device so as to be combined into a laser beam via the beam combining device to be output; a plurality of bunches of laser light output by the plurality of lasers have various polarization directions. The invention lowers the production cost of laser source devices, reduces volume and lowers power consumption, and thus the invention has wider applicable range and situation.

The embodiment of the application provides an automatic projection imaging correction method. The method comprises the following steps: obtaining a specified area image via a preset image collection device, wherein the specified area image comprises a projection mage of an original image and a screen image; determining vertex angle coordinates of the projection mage of the original image, and thevertex angle coordinates of the screen image; calculating a mapping proportion coefficient by using preset length values of side lines of the original image and the vertex angle coordinates of the projection mage of the original image; calculating the vertex angle coordinates of a target image by using the mapping proportion coefficient and the vertex angle coordinates of the screen image; and correcting the original image by using the vertex angle coordinates of the target image. According to the embodiment of the invention, no user operation is needed, so that the laser TV can be debugged without a professional debugger.

The invention relates to a laser scanner used curve rotating mirror which uses gear sharp to displace the regular polyhedron sharp and uses special curve reflector to displace the flat mirror of rotating mirror-oscillating mirror system to achieve the sense scan of the laser beam with even scan speed.

The invention belongs to the manufacture field of a laser television, in particular to the manufacture technical field of an infrared luminescence display screen and an infrared laser television. Aiming at the defects that the existing plasma and liquid crystal display have lower chroma and can not realize the application of large screen, and the existing laser television has high cost, the invention provides an up-conversion luminescence infrared laser display screen, manufacture method thereof and a display running system with the display screen. The display screen comprises an infrared laser faceplate; an optical film with visible light high transmission, infrared light high reflection or high absorption, which is manufactured on the infrared laser faceplate, black matrix manufactured on the optical film, a red, green and blue color light-filtering film manufactured on the hole of the black matrix, and a rare earth doping up-conversion red, green and blue trichromatic luminous source coated on the red, green and blue color light-filtering film. An infrared laser television system which consists of the display screen and the infrared laser display running system not only has high chroma, but also has lower cost than that of the laser television, thereby being a transition product between the liquid crystal display television and the laser television.

A laser television including a plurality of lasers for generating different wavelengths of interferential light; a scanner for displaying color images on a screen composed from the light; and a phase diffuser positioned between the lasers and the scanner for diffusing the light from the lasers according to the light's wavelength. The phase diffuser having a boundary surface, through which the light is outputted to the scanner. The boundary surface is slanted with a predetermined angle to regulate the range of diffraction of the light according to the wavelength.

The invention belongs to the field of projector and camera manufacturing, and particularly discloses an optical switch array and an optical path device with the functions of projection and camera shooting formed by the optical switch array. The optical switch array comprises an optical switch chain which is arranged along the y axis in the three-dimensional rectangular coordinate system and a plurality of T-shaped optical switch chains which are arranged parallel to the z axis. The optical path device with the functions of projection and camera shooting comprises a processor (1), a driving module (2), a display light source (3), a photoconductor unit (4), a light path separation unit (5), a divergent unit (6) and a lens module (7). The optical path device with the functions of projection and camera shooting is characterized in that the optical device is further provided with the optical switch array (8), and through controlling of the status of each 'T'-shaped optical switch in the optical switch array (8), direct projection display and scenery shooting are achieved. According to the optical switch array and the optical path device with the functions of projection and camera shooting, the structure is simple, the running power consumption is low, service life is long, the display color gamut is about the same as a laser television, the image quality is high, and the function of the projection and the function of the camera shooting are integrated.

The invention relates to a laser television cabinet and projection equipment, and belongs to the technical field of furniture. The laser television cabinet comprises a cabinet body which is provided with a placing position used for placing a projector; a curtain; a winding and unwinding mechanism arranged in the cabinet body and used for winding and unwinding the curtain; a curtain lifting mechanism used for driving the curtain to ascend or descend; and a projector arranged on the cabinet body and used for projecting the laser onto the lifted curtain. According to the laser television cabinetand the projection equipment provided by the embodiment of the invention, the projector is arranged in the cabinet body and is applied to ultra-short-focus projection, the curtain can be unfolded or folded, and the laser television cabinet is flexible to use and diversified in function.

The invention relates to the fields of projected display technology and laser television display technology, in particular to a projection curtain with high luminance gains and wide view angles. The projection curtain with the high luminance gains and the wide view angles solves the problems that existing projection curtains can not achieve high luminance gains and wide view angles. The projection curtain comprises a reflection layer, an adhesive layer and a refraction layer. The reflection layer is provided with a reflection surface. The refraction layer comprises a transparent base material and a microprism structure. The adhesive layer is located between the reflection surface of the reflection layer and the transparent base material of the refraction layer. The projection curtain has the effects of high luminance gains and wide view angles and can be applied to laser televisions and projector products.

The invention belongs to the laser video display field and relates to a kind of composing and homogenizing method of the multiple-beam laser. The ends of multiple optical fibers are at the same level and they are packed together to form a tight and parallel multiple-beam optical fiber. The multiple-beam laser can transmit respectively through the fiber cores of the optical fibers to form a beam of light to output. It is produced simply; the optical energy loss of laser is low; the coupling efficiency is high. The light transmitted through the multiple-beam optical fiber is homogenized by the light homogenizing system. It decreases the polarization and cohering of laser and makes sure that the lightness and the color of the laser display image are uniform and there is no intervening stripe.

The invention relates to a structural damage identification method based on a laser television holographic technique. The invention discloses a structural damage detecting method comprising the following steps: acquiring speckle interference fringe images of a nondestructive structure, constructing a group of interference fringe images of the nondestructive structure reflecting measurement noise, constructing a damage detection network model by a support vector machine sorting algorithm, and sorting and comparing unknown images to judge whether damage occurs and the position of damage. The method provided by the invention is suitable for structural damage detection, can improve damage identification accuracy, simplify the damage identification process and realize intellectualization in judging structural defects.

The invention discloses a light source module of a laser television and a laser projection television, and relates to the technical field of the laser television. By the light source module, the problem of excessively high sealing cost caused by the adoption of airtight-level sealing of the whole light source module is solved. The light source module of the laser television comprises a shell, wherein a cavity is formed in the shell, a partition structure is arranged in the cavity and is used for dividing the cavity to a first chamber and a second chamber which do not communicate with each other, the light source module also comprises a laser module and an optical lens module, the optical lens module comprises a first transmitting optical lens and a second optical lens module, the second optical lens module is arranged in an output light path of the first transmitting optical lens, the partition structure comprises the first transmitting optical lens and a support part, the support partis used for supporting the first transmitting optical lens, the laser module is arranged in the first chamber, and the second optical lens module is arranged in the second chamber. The light source module is used for the laser television.

The invention discloses a laser television screen and a laser television system. The laser television screen comprises a backboard on which an optical film sheet is arranged, wherein, the optical film sheet has several optical modules for reflecting light projected by a laser television host to audience and absorbing ambient light, and the optical modules are transversely arranged on the optical film sheet. According to the laser television screen and the laser television system, by arranging, on the optical film sheet, the optical modules for reflecting light projected by a laser television host to audience and absorbing ambient light, an image sent by the laser television host is projected onto the laser television screen and reflected to the audience by the laser television screen, however the ambient light is absorbed by the optical modules, thus realizing that the image is improved in contrast degree while the image is improved in brightness.

The present invention relates to a light source device for laser display system, in particular to a light source device which can satisfy the needs of large screen laser display and high power; the invention comprises RGB tricolor laser light source and a beam device; the laser light source of each fundamental color consists of at least two lasers; the light source device for laser display system breaks through the system framework formed by RGB tricolor lasers in the prior laser display; as the invention adopts an incoherent beam technology, the output power of the light source can be improved through increasing the number of the laser and single laser module can be dismantled and replaced freely, thereby achieving the modularized design of the whole light source device, improving the reliability and maintainability of light source, reducing the cost of light source system and satisfying the need of superlarge laser display in order to develop towards the directions of large screen and high brightness.

A diffraction grating including a substrate, and a grating member formed on the substrate, the grating member having a stepped structure including steps, the number of which corresponds to an odd number greater than or equal to three to provide an odd phase structure. The heights of the steps of the grating member are determined such that the light beams diffracted by their corresponding steps substantially have a phase difference of π with reference to a diffracted light beam of a reference wavelength.

The invention discloses a laser TV optical fiber control system based on an AML7366SOC chip. The system comprises an AML7366SOC chip smart TV main control unit, an adaptive DLP output brightness adjusting unit, an automatic anti-glare unit, an active energy saving unit and a ultra short focal length back projection DLP laser projection display unit. The display of a DLP laser projection system and the adjustment of parameters are controlled by the main control unit, thereby not only realizing the laser projection display function of a TV signal source, but also adjusting a laser projection display effect or setting relevant auxiliary functions, moreover, relevant laser projection state information can be read, and more importantly, due to the automatic laser TV brightness adjustment function realized by an ambient light sensor, a laser TV anti-glare function based on an infrared human body sensor and an active energy saving function, the intelligence of the product is improved, and the user experience is optimized, so that the laser TV optical fiber control system disclosed by the invention has innovation significance and practical significance.

The invention discloses a laser television, which comprises an enclosure, a television screen, an optical engine positioned in the enclosure, a reflector and a television core circuit, wherein the optical engine is a laser optical engine; a red semiconductor laser device, a green semiconductor laser device and a blue semiconductor laser device are used as light sources of the optical engine; laser emitted by the red, green and blue semiconductor laser devices is gathered into a color combining prism through a beam processing module, a polarizing beam splitter and a liquid crystal on-silicon (LCOS) chip respectively, and the laser is combined into single laser rays through the color combining prism; laser beams containing all image information are sent to a projection lens through an optical cable, and the projection lens projects the images to the television screen through the reflector; and the laser optical engine is also provided with a driving circuit and a feedback control modulefor increasing image brightness detection and signal feedback functions in circuit drive to control the power of the laser devices at any moment. Compared with the prior art, the laser television hashigh definition, good color effect, long service life and low cost, and can be provided with a large screen or a super-large screen.

The invention discloses a high-power blue optical fiber laser, which contains front end input coupling device, wherein the first optical fiber device is set behind the front end input coupling device; the first optical fiber device, multiple frequency device and second optical fiber device connect to form resonant cavity through optical fiber; the resonant cavity is changed into activating cavity excited by double-end pump of front end input coupling device and rear end pump device; the laser working material is fiber core material of optical fiber system double-layer optical fiber, which outputs high-power blue laser through output aligning lens after realizing cavity multiple frequency. The invention improves switching efficiency, which is applied in the laser reserving, image display, laser TV and seawater communication domains widely.

The invention discloses an FPGA control method and device during a video signal transmitting fault of a laser TV set, and belongs to the field of video signal processing technologies. The method comprises that when the fault refers to that a signal locking state of a receiving end is abnormal or that timing information obtained by analyzing a video signal in the receiving end has an error, the receiving end is reset; and when the fault refers to that a signal locking state of a sending end is abnormal, the sending end is reset. Thus, the laser TV set is prevented from displaying an error state continuously.

The invention belongs to the field of display manufacturing, and particularly discloses an optical switch array and a display screen with functions of scanning and interaction formed by the optical switch array. The optical switch array comprises an optical switch chain which is arranged along the y axis in the three-dimensional rectangular coordinate system and a plurality of T-shaped optical switch chains which are arranged parallel to the z axis. The display screen structurally comprises a processor (1), a display light source (2), a light splitting unit (3), a photoconductor unit (4), a driving module (5) and a divergent unit (6); the display screen with the functions of scanning and interaction formed by the optical switch array is characterized in that the display screen is further provided with the optical switch array (7), and through controlling of the status of each T-shaped optical switch in the optical switch array (7), direct light display and the functions of scanning and interaction are achieved. According to the optical switch array and the display screen with the functions of scanning and interaction formed by the optical switch array, the structure is simple, the running power consumption is low, service life is long, the display color gamut is about the same as a laser television, the image quality is high, and the functions of scanning and interaction are achieved as well.

The embodiment of the invention provides a VBO signal processing method, an FPGA and a laser television. The method comprises the steps of converting each VBO signal into a parallel signal, and recovering a clock signal from each parallel signal; caching the plurality of parallel signals; and reading all the cached parallel signal based on a target clock signal, wherein the target clock signal is one clock signal in the multiple clock signals recovered from the plurality of parallel signals. According to the method and the FPGA provided by the embodiment of the invention, transmission accuracy of the VBO signal between an SOC and the FPGA can be improved, and stability of a hardware system in the laser television can be enhanced.

The invention discloses a rollable hidden laser television all-in-one machine. An electric panel opening mechanism, a curtain lifting mechanism, a curtain curling collection mechanism and a laser projection display device are arranged in the television all-in-one machine body. The curtain curling and collecting mechanism is arranged below the curtain lifting mechanism; the curtain lifting mechanism is movably arranged in the lifting groove; the top of the curtain is connected with the curtain lifting mechanism; the bottom end of the curtain is connected with the curtain curling collection mechanism; a projection through groove is formed in the middle of the upper surface of the television all-in-one machine body; the top end of the electric panel opening mechanism is movably arranged in the projection through groove; the laser projection display equipment is arranged below the electric panel opening mechanism; the curtain is arranged in the laser television all-in-one machine, the laser television all-in-one machine is convenient to use, the curtain does not need to be installed without punching, the middle part of the box body is provided with the sound transmission screen plate,the laser sound effect can be ensured, and the heat dissipation problem can be solved; the hidden electric panel opening mechanism and the curtain lifting mechanism are remotely controlled to rise during use and hidden when not used.

The invention provides a television cabinet with an opening and closing mechanism capable of concealing a laser television, belonging to that technical field of TV cabinets, and the cabinet comprisesa cabinet body and a laser television arranged in the cabinet body, Cabinet comprise a top plate, the base plate and the front panel vertically connected to the base plate and the front panel vertically connected to the front panel, rear panel and two side panels, the lower surface of the top plate is provided with an opening and closing mechanism, a switch mechanism is connected with an intermediate panel which can be opened and close on that upper surface of the top plate, the opening and closing mechanism comprises a linkage rotating shaft and two parallel screw nuts perpendicular to the linkage rotating shaft, a first bevel gear is arranged at both ends of the linkage shaft, a second bevel gear meshing with the first bevel gear is arranged at one end of the screw nut close to the linkage shaft, the linkage shaft is connected with a driving motor, a moving block is sleeved on the screw nut, the moving block is connected with a sheet metal, and the sheet metal is connected with the side of the intermediate panel. The invention is convenient to open and close, and can expose or hide the laser television lens according to the need of use, and the laser television does not need additional occupied space.