78results about How to "Reduce halo" patented technology

Described are multilayer optical composites including a first layer having an index of refraction n₁, an i^th layer having an index of refraction n_i greater than n₁, and one or two or more intermediate layers between the first layer and the i^th layer, wherein the indices of refraction of the intermediate layers are between n₁ and n_i, and the index of refraction of each intermediate layer increases in the order of position of each layer from the first layer.

The ink set of this invention comprises at least two inks, one of which contains a pH sensitive polymer and preferably a self-dispersing pigment colorant. A second ink is provided which comprises incompatible inorganic or organic salts or has an appropriate pH. The polymer precipitates onto a medium upon contact with the second ink, thereby providing improved bleed and halo control.

An object of the present invention is to provide a retroreflective sheeting that exhibits proper retroreflection even at a small incident angle with no or less halation, and has superior incident angularities and superior direction characteristics, as well as a film for use in the retroreflective sheeting. The retroreflective sheeting with the above characteristics is obtained by forming reflective elements of a specific triangular pyramidal frustum configuration in a close-packed state on one surface thereof. The shape of the triangular pyramid frustum element satisfies following requirements: one side length of the bottom surface is in the range of 50 to 400 μm, and a difference between a longest side and a shortest side is 200 μm or less; the length of a longest edge is in the range of 50 to 400 μm, and a difference between the longest edge and a shortest edge among the three edges is 100 μm or less; when a vertical line which intersects perpendicularly with the bottom surface is drawn from a top surface to the bottom surface, the length of a longest vertical line is in the range of 20 to 250 μm; and an angle between adjacent side surfaces is in the range of 85 to 95 degrees.

The invention is a display unit, comprising a liquid crystal panel, a circuit board, a light guide plate, at least a light source and a double-faced adhesive tape, where the light source is connected with the circuit board and located outside the light guide plate, and the double-faced adhesive tape is used to bond the liquid crystal panel with the light guide plate and has at least a gap which corresponds to the light source to reduce the irradiation of the light source on the double-faced adhesive tape and there is a halo formed at the gap.

The invention discloses a real-time video defogging method based on dark channel prior and mainly solves the problems of relatively high calculation complexity, and flash and dithering, color distortion and halo effect of a restored video in an existing method. The method comprises the steps of estimating an atmospheric light intensity of a current frame by use of correlation of front and rear frames of a video sequence; then, calculating a rough transmissivity based on the dark channel prior; modifying the rough transmissivity by use of a non-linear function for the problem that the rough transmissivity is small in a bright region, and performing rapid steerable filtering on the modified transmissivity by use of a gray-scale image as a guided image to obtain a fine transmissivity estimation; and finally, restoring the image preliminarily by use of an atmospheric scattering model, and performing gamma correction of the image to obtain a final restored video image.

The invention provides a backlight adjusting method of a display device, a backlight adjusting device and the display device. The display device comprises a display panel and a backlight module, the display panel is divided into a plurality of display subareas, the backlight module comprises a plurality of backlight subareas, the display subareas correspond to the backlight subareas in a one-to-one mode, and the method comprises the following steps: according to pixel information in each display subarea, calculating an initial backlight value of the backlight subarea corresponding to each display subarea; and correcting the initial backlight value of the target backlight subarea according to a preset backlight threshold and the initial backlight value of the backlight subarea adjacent to the target backlight subarea to obtain a first backlight value of the target backlight subarea, the target backlight subarea being each backlight subarea. According to the backlight adjusting method provided by the embodiment of the invention, the halo problem existing in local dimming equipment and the local detail loss problem caused by compensation overflow can be well weakened under the condition that the overall display brightness and contrast ratio are not influenced, and the picture effect is improved.

The invention provides a strong micro-cavity silicon-based organic light-emitting display device, which comprises a monocrystalline silicon substrate. The monocrystalline silicon substrate comprises pixel regions and interval regions between the pixel regions. Reflecting electrodes are arranged in the pixel regions, and transparent electrodes are arranged on the reflecting electrodes. An insulation filling layer is arranged in the interval regions. A pixel definition layer is arranged on the insulation filling layer. The pixel definition layer further covers the edges of the transparent electrodes. An organic light-emitting layer is arranged on the pixel definition layer. A cathode layer is arranged on the organic light-emitting layer. The invention further provides a forming method of thestrong micro-cavity silicon-based organic light-emitting display device. According to the strong micro-cavity silicon-based organic light-emitting display device and the forming method thereof, the difference in the film forming time period of the pixel definition layer is reduced or eliminated, and the breakage is avoided. The thickness is uniform. The halo phenomenon caused by optical scattering unevenness caused by partial unevenness of the pixel definition layer on the edge of the transparent electrode is further reduced. The contrast ratio of the display device is improved.

The invention relates to a high dynamic video processing system based on a SoC FPGA. The system comprises an image sensor, the SoC FPGA and display equipment, wherein the image sensor is used for collecting and outputting first video data; the SoC FPGA is connected to the image sensor and is used for configuring the image sensor, simultaneously receiving and processing the first video data to formsecond video data and outputting the second video data; and the display equipment is connected to the SoC FPGA and is used for receiving and displaying the second video data. In the invention, a SoCPGA platform is adopted, an integrated level is further increased, the advantages of various chips are performed, and system design difficulty brought by inter-chip data exchange is reduced through astandard bus protocol. Software program exploitation is flexible and convenient and can be transplanted to different hardware platforms. Through a software and hardware cooperation design, hardware system resources can be flexibly used. The FPGA is used for real-time image processing, and calculating performance and real-time performance are effectively increased.

A backlight module includes a frame, a reflective sheet, a light guide plate, a light source, and an optical film set. The frame defines an accommodation space, and the reflective sheet is disposed in the accommodation space. The light guide plate is disposed in the accommodation space and on one surface of the reflective sheet. The optical film set is disposed one side of the light guide plate opposite the reflective sheet. The reflective sheet is hollowed out at a position overlapping the light source to form at least one opening so as to reduce light halos.

There is provided a lens module including: a first lens having a first coupling portion; a second lens having a second coupling portion; and a space maintaining member disposed between the first and second lenses and having third and fourth coupling portions coupled to the first and second coupling portions, respectively.

To effectively remove halo in an image processing method and an image processing apparatus for compressing the dynamic range of an image to convert the image to an image suitable for image recording or image display. The means for achieving this purpose comprises, in an image processing method for compressing the dynamic range of an image, an inputting step of inputting image data; a low frequency component calculating step of calculating the low frequency component of the input image data for each pixel; an image processing step of calculating an image process value for each pixel by use of an equation indicated below; and an outputting step of outputting image data including the image process value calculated in the image processing step. Snp=a1·Snus+a2·(Snf−Snus), where Snp represents an image process value, a1 and a2 are coefficients (0<a1<1, 0<a2<1), Snus represents a low frequency component of each pixel calculated in the low frequency component calculating step, and Snf represents an image data value of each pixel inputted in the inputting step.

An image processing apparatus that is capable of generating a wide-angle composite image in which halation and black collapse are reduced without needing lots of memory quantity. An obtaining unit obtains images that are photographed with different exposure values while changing a photographing target area continuously. A detection unit detects an overlapped area where an object overlaps between adjacent images among the images obtained by the obtaining unit. A generation unit generates a composite area in which overlapped areas detected by the detection unit are overlapped so as not to exceed a predetermined count. A computation unit computes composition ratios of the images obtained by the obtaining unit based on the exposure values and signal values at the times when the images are photographed. A composition unit generates a wide-angle composite image by compositing images in the composite area with the composition ratios computed.

The invention provides a backlight module and a display device. The backlight module comprises a substrate, a number of light-emitting diodes arranged on the substrate, and a number of subregions arranged in an array. At least one light-emitting diode is arranged in each subregion. The backlight module further comprises at least one grating structure arranged on the substrate, and an optical filmlocated on one side, which is away from the substrate, of the light-emitting diodes and the grating structure. The grating structure is arranged between two adjacent subregions, and the transmittanceof the grating structure is greater than zero. In a direction perpendicular to the light-emitting surface of the backlight module, the distance between the substrate and the optical film is H. The distance between one side, which is close to the substrate, of the grating structure and one side, which is away from the substrate, of the grating structure is h. h is less than H. According to the invention, the uniformity of the light emission of the backlight module can be improved, and the display effect of the display device is improved.

The invention relates to an image defogging method and system, electronic equipment and a storage medium. The method comprises the steps of obtaining a to-be-defogged original image; filtering the pixel value of the original image by adopting a pixel window function to obtain a mean value of the dark channel image; converting the original image into an HIS image; reconstructing the brightness of the HIS image in a table look-up mode according to the mean value to obtain a brightness reconstructed HIS image; sequentially carrying out brightness enhancement and brightness curve correction on theHIS image after brightness reconstruction to obtain a corrected HIS image; performing color saturation adjustment on the HIS image to obtain an adjusted HIS image; and according to the corrected HISimage and the adjusted HIS image, converting the corrected HIS image and the adjusted HIS image by adopting an image conversion model to generate an RGB image, and obtaining a defogged image. According to the processing defogging algorithm, the pixel window function is adopted when the mean value of the dark channel image is obtained, the obtained data can be more accurate, and therefore the accuracy of later image processing is further improved.

The invention discloses absorption type filtering protection glass. The absorption type filtering protection glass adopts quartz glass or sapphire glass as a material, the surface of the absorption type filtering protection glass is plated with an infrared cut-off film and an antireflection film, and light-absorbing substances such as phosphorus pentoxide is added into an absorption type filtering protection glass smelting process. According to the absorption type filtering protection glass disclosed by the invention, phenomena of halo, ghosting and darkened picture caused by light reflection and absorption can be effectively reduced in an image module optical system, and a phenomenon of chromatic aberration of incident light due to angle changes can be improved.

The invention belonging to the technical field of image processing discloses an image fusion method, system and device. The method comprises: performing smoothing filtering processing on N source images separately to obtain base layer images corresponding to the N source images; carrying out difference processing on the N source images and the corresponding base layer images respectively to obtaincorresponding detail layer images; according to the N base layer images, constructing weight maps corresponding to the N base layer images; carrying out pyramid decomposition and weighted averaging on the N base layer images and corresponding weight maps respectively to obtain a fusion result of each base layer image after decomposition; and reconstructing the fusion result of each base layer image after decomposition to obtain a fusion image of the N source images. Therefore, the complexity of the algorithm is reduced and a halo phenomenon of the fused image is avoided.

Embodiments provide a polishing composition for a magnetic disk substrate containing colloidal silica, a water-soluble polymer, and water. The water-soluble polymer compound is a copolymer containing a monomer having a carboxylic acid group, a monomer having an amide group, and a monomer having a sulfonic acid group as essential monomers. The water-soluble polymer compound has a weight average molecular weight of 1,000 to 1,000,000.

In an image display apparatus in which an electron-emitting device is used, an image having high brightness and high contrast is formed while color drift is decreased to form the image having good color purity by suppressing halation. Assuming that a thickness is set at T1 in a portion corresponding to a center portion 9 of a phosphor member 6 and a thickness is set at T2 in a portion corresponding to a peripheral portion 10 of a phosphor member 6, a relationship of T1<T2 is met for the thickness of an accelerating electrode 7. Therefore, in the scattered electrons incident to the phosphor member 6 again, the scattered electron incident to the peripheral portion 10 of the phosphor member 6 has the large energy loss when the scattered electron is transmitted through the accelerating electrode 7, and halation brightness is decreased in the whole of the phosphor member 6. In the accelerating electrode 7, because the thickness T1 of the portion corresponding to the center portion 9 of the phosphor member 6 is kept thin, the electron energy possessed by the electron emitted from the electron-emitting device 4 when the electron is incident to the phosphor member 6 is kept high. Accordingly, the brightness of the bright spot is not decreased.

The invention relates to a phase contrast microscope and a debugging method thereof. The phase contrast microscope comprises a light source (1), an illumination processing unit (2), an objective lensunit (3) and an imaging unit (4) which are arranged in sequence along the light transmission direction, wherein the illumination processing unit (2) includes a light collecting mirror (21), a fly eyelens (22) and a light condensing mirror (23) which are arranged in sequence along the light transmission direction; the objective lens unit (3) is provided with a phase contrast board (31), and the phase contrast board (31) is a spotted phase contrast board. The phase contrast microscope can achieve the effects of high resolution, high illumination efficiency and ability of being free of shallow and halation through adopting the spotted phase contrast board.