70results about How to "Reduce color shift" patented technology

The embodiment of the invention discloses an image collection method and device and a storage medium. According to the embodiment of the invention, when a terminal starts a preposed camera, the environment light brightness and environment light color temperature are detected so as to adjust the screen brightness of the terminal, and the light with the supplementary light color is projected to a photographed object through a screen, thereby enabling the environment light brightness to reach the brightness required by preset photographing. The color temperature can be balanced, so as to reduce the noise points and color deviation, to achieve the better collection of the images of the photographed object, and to improve the image quality.

The invention relates to a band-pass color wheel device for three-dimensional stereoprojection display, which comprises two color wheels capable of rotating around the centre, each color wheel is inlayed with at least an R color band-pass optical filter, a G color band-pass optical filter and a B color band-pass optical filter. Compared with prior art, the invention has the advantages of simple manufacture, low cost and good projection effect.

The invention discloses a compensation device and method for a display screen image in a backlight local dimming system. The display screen image is divided into a corresponding quantity of image blocks according to a plurality of backlights. A block brightness variation value deciding device receives the display screen image and calculates the average value, the maximum value and the initial value of the image blocks. A quality/power saving priority deciding device respectively generates backlight dimming signals to the image blocks according to the average value, the initial value, the first threshold value and the second threshold value of the image blocks. An on-time filter generates the backlight pulse width modulation signals of the image blocks according to the backlight dimming signal adaptabilities of the image blocks. A backlight-diffused approximating device generates a backlight-diffused image according to the backlight pulse width modulation signals of the image blocks. An image compensation device compensates the display screen image according to the backlight-diffused image to generate a compensated screen image. By adopting the device and the method disclosed by the invention, the calculation amount and the hardware circuit area can be reduced and the image quality can be improved.

Optical films, and organic light-emitting display apparatuses employing the same, include a high refractive index pattern layer including a first surface and a second surface facing each other, wherein the first surface includes a pattern having a plurality of grooves. The plurality of grooves each have a curved surface and a depth greater than a width thereof. The high refractive index pattern layer is formed of a material having a refractive index greater than 1. The optical films, and the organic light-emitting display apparatuses, further include a low refractive index pattern layer formed of a material having a refractive index smaller than the refractive index of the material constituting the high refractive index pattern layer. The low refractive index pattern layer includes a filling material for filling the plurality of grooves.

The invention provides a liquid crystal display and a driving method, in particular to application image segmentation technology which comprises the following steps: segmenting image data into a plurality of image blocks, carrying out image analysis on the image blocks, regulating low gray-scale image data of the image blocks into high gray-scale image data, outputting a backlight control signal to a backlight control module, controlling a corresponding backlight module block of the image block by the backlight control module, and darkening the backlight of the image block to reduce the problem of color migration of the image block.

The invention provides a yellow light absorption structure and a backlight module having the same. The yellow light absorbing structure comprises a yellow light absorbing material, a blue light preventing film layer and a substrate, the blue light preventing film layer is arranged on either side of the base, and the yellow light absorbing material is arranged in the blue light preventing film layer or arranged in the substrate. Since the yellow light absorbing structure is provided with the blue light preventing film and the yellow light absorbing material, so when integrated in a monitor module, the yellow light absorbing structure can be used to filter the blue light wave band that causes damage to human eyes, can further reduce damage to human eyes caused by a display screen, can absorb a part of the yellow light wave band to reduce color shift of the display screen, and keeps the white balance of color of the display screen.

The invention relates to a color segmentation three-dimensional projection device based on band-pass color wheel light-filtering, comprising a left projector and a right projector respectively corresponding to a left eye and a right eye. Both of the left projector and the right projector comprise light sources, band-pass color wheels which can carry out RGB (Red, Green, Blue) three-channel light-filtering, digital micromirror devices DMD and projection lenses. The light sources, the band-pass color wheels and the digital micromirror devices DMD are sequentially arranged, and the projection lenses are positioned on a reflection path of the digital micromirror devices DMD. Compared with the prior art, the invention has the advantages of low cost and good projection effect and is simple to manufacture.

Printing heads of combinations of four ink colors and seven printing characteristic ranks are previously used to print an image for measurement, and table parameters corresponding to all of the combinations of nozzle ink colors and printing characteristic ranks are obtained on the basis of a measurement result of this image for measurement and stored in a memory. Then, when printing is actually performed in a printer, a primary color image for measurement is printed for each nozzle of a printing head for each of four ink colors. A printing characteristic rank for each nozzle is obtained for each of four ink colors based on a measurement result of this image for measurement, and a table parameter is selected that corresponds to the same combination as the combination of the obtained printing characteristic rank of each nozzle of four ink colors, by referring to the memory.

The invention provides a method for configuring a fluorescent powder coating liquid of a white light emitting diode. The fluorescent powder coating liquid of the white light emitting diode includes the fluorescent powder and a binder, wherein the binder is an inorganic compound nanometer silica sol, and the inorganic compound nanometer silica sol and the fluorescent powder have weight percentage ratios of 60-85% and 40-15%. The method includes: slowly pouring the silica sol into a ball mill with 15%-40% of fluorescent powder, then adding ball mill balls with diameters of phi6, phi10, phi15 and a weight ratio of 2:1:1 for mixing and milling. The fluorescent powder coating liquid has the advantages that the membrane enveloping effect on the fluorescent powder is realized by utilizing the nano silica sol; the damage of the harmful ultraviolet radiation on the fluorescent powder is reduced; and the hot quenching property of the fluorescent powder is lowered so that the attenuation of the fluorescent powder and the color bleaching of the light emitting diode are reduced, and the aging resistance property of the light emitting diode is improved.

The invention relates to a multi-channel combined filter-based color segmentation three-dimensional projection device, which comprises a left projector and a right projector corresponding to a left eye and a right eye respectively, wherein both the left projector and the right projector comprise a light source, a projection lens, a prism and an R filter channel, a G filter channel and a B filter channel arranged side by side; and two groups of complementary wave bands of R1, G1 and B1, R2, G2 and B2 are generated by a method for segmenting the wave bands of the R, G and B channels respectively. The device greatly reduces the manufacturing difficulty of a light filter, reduces the cost, increases the brightness of a three-dimensional projection picture, reduces the color deviation of the three-dimensional projection picture, and effectively avoids double images, ghost images and the like in the prior art.

The invention discloses an LED and a display device, and relates to the display techniques. Due to the fact that quantum dot materials which can emit light under illumination of an LED chip are doped in an LED lamp cover which is far away from the LED chip, the influence of the temperature of the LED chip on the quantum dot materials is small, the color deviation of light emitting of the LED is reduced, and the quality of displaying is improved.

A transfer device, which transfers an image onto a recording medium directly or indirectly and is included in an image forming apparatus, includes an endless belt member extended between a drive roller rotated and a driven roller and configured to receive the image from the image carrier part onto either a surface thereof or the recording medium carried on the surface thereof while moving according to rotations of the drive roller, and a rotation speed detector configured to detect a rotation speed of the driven roller. An image detector is provided either to the transfer device or to the image forming apparatus to detect the image formed on the endless belt member directly or the recording medium carried on the endless belt member, and disposed facing the driven roller in a circumferential direction of the endless belt member.

The invention discloses an LED Bin dividing method and an application product thereof. The LED Bin dividing method and an application product thereof are characterized in that LED Bin dividing parameters included in the method at least comprise brightness or luminous fluxes, voltage and chromaticity coordinates of wafers in LEDs, according to actual distribution conditions of the LED parameters under preset conditions, the parameters are divided into different section ranges, and the parameters in the sections are arranged and combined together to form a final Bin dividing standard. The Bin dividing condition or range of the Bin dividing parameters is reasonably and scientifically defined, scientific definition of optics, electricity and chromaticity is included, products with similar parameters are concentrated in a same Bin, LED products with Bin divided through the method are assembled together, color consistency of end application products can be greatly improved, and color difference or color deviation problems of a same batch of products can be solved.

In a method of manufacturing an optical sheet, a stacked structure may be formed by alternatively and repeatedly stacking at least one transparent layer and at least one light scattering layer. A first cut face may be formed by partially cutting the stacked structure. A second cut face may be formed by partially cutting the stacked structure. The second cut face may be parallel to the first cut face.

This invention provides a top-emission active matrix electroluminecient device including a substrate and a plurality of pixel areas formed within a display area of the substrate. Each of the pixel areas includes at least one sub-pixel area comprising at least, from top to bottom: a first conductive electrode layer, an electroluminecient layer, a second conductive electrode layer, a first reflective layer region, and a second reflective layer region. The first reflective layer region and second reflective layer region overlap each other in part. Some of the light rays emitted from the electroluminecient layer are reflected by the first reflective layer region and second reflective layer region, respectively, and are then directed upwards. The reflected light rays compensate the top-emitting light rays also emitted from the electroluminecient layer, reducing color shifts at different viewing angles due to the micro-cavity effect.

The invention discloses a full-automatic makeup removing and beautifying integrated device, which includes a shell. The shell is provided with a groove allowing the head to extend into the inner wallof the shell, a 3D scanner for scanning the face of a human body is arranged on the upper part of the groove, the groove is provided with four faces, a liquid collector is arranged on the bottom faceof the groove, a cross beam is arranged above the liquid collector, the cross beam is provided with a movement adjusting unit, and the movement adjusting unit is provided with a flexible cushion block; a 3D printer working arm is arranged at the top of the shell, the 3D printer working arm is provided with a 3D printer spraying head, a contact connecting part is arranged on the lower part of the 3D printer spraying head in a connected mode, a plurality of contacts are arranged on the lower part of the contact connecting part in a connected mode, and the contacts are located on the upper part of the groove and staggered to be not located on the same vertical surface with the 3D scanner during the action; and a plurality of liquid storage tanks are arranged on the upper part of the shell, and the liquid storage tanks are connected with the 3D printer spraying head through connecting pipes.

The embodiment of the invention discloses an image processing method and device. The method comprises the following steps: when the fact that a target image includes at least two light sources is detected, determining the distribution area corresponding to each light source in the at least two light sources; respectively processing the target image by using a white balance algorithm corresponding to each light source, generating at least two frames of processed images, wherein one light source corresponds to one frame of processed image; according to the distribution area corresponding to each light source, synthesizing the at least two frames of processed images into one image, and outputting the image. The method can reduce the color deviation of images under multiple light sources.

The present invention provides an electrochromic display device which can realize a reduction in color drift in storing images and has excellent memory properties. The electrochromic display device is an active matrix drive-type electrochromic display device containing opposed electrodes, at least one type of a porous layer containing titanium oxide with an electrochromic dye adsorbed thereon, and at least one type of a porous layer containing tin oxide. The active matrix drive-type electrochromic display device is characterized in that the tin oxide-containing porous layer is connected to a pixel circuit used in active matrix drive through one of the opposed electrodes.

The invention provides an LED light source capable of weakening blue light harm. The LED light source comprises a blue light chip and a glass light-conversion light-emitting assembly. The glass light-conversion light-emitting assembly is composed of borosilicate glass uniformly dispersed with cerium-activated yttrium aluminum garnet fluorescent powder and a glass substrate with one surface coatedwith red fluorescent powder. The red fluorescent powder is red fluorescent powder excited by blue light; one surface of the glass substrate, which is coated with the red fluorescent powder, is clung to the borosilicate glass; the glass light-conversion light-emitting assembly is arranged, the fluorescent powder is uniformly dispersed in borosilicate glass, and the consistency of LED light source and the luminous stability of phosphor are improved; and meanwhile, the blue chip further excites red fluorescent powder, overflow of blue light of the lamp is reduced, red light is increased, color temperature is reduced, and the problems of aging, color drift and blue light overflow of a resin packaged LED in the prior art can be effectively solved.