74results about How to "No color cast" patented technology

The invention provides a voltage drop compensation method and system for an AMOLED display panel. The method comprises the steps: carrying out the gamma correction of the display panel, and obtaininga gamma correction table; measuring the display panel to obtain the brightness uniformity and the gray scale number before compensation; selecting a compensation value according to the brightness uniformity and the gray scale number before compensation; dividing the display panel into x compensation blocks, wherein the value of x is reduced along with the increase of the brightness uniformity value before compensation; for each compensation block, compensating the RGB value of the compensation block in combination with the compensation value and the gamma correction table to obtain an output RGB value of the compensation block; and converting the output RGB value of each compensation block into a gate voltage value as an output gate voltage value for respectively controlling the red sub-pixel, the green sub-pixel and the blue sub-pixel. According to the invention, IR Drop compensation is carried out on the white picture after gamma adjustment, so that the gamma value of the gamma adjustment position can be kept in a specification range and the display panel is prevented from color cast.

The invention discloses a light-adjustable high-power LED driving power supply, comprising an alternating current input end filter unit, a rectification filter unit, a flyback conversion unit, an auxiliary power supply unit, a single-cycle control unit, a linear optically coupled isolation unit, a constant-current source output end, a constant-current control unit and a PWM (Pulse-Width Modulation) output light adjusting unit. The power supply disclosed by the invention has the advantages as follows: the flyback conversion unit of a main circuit is controlled by the single-cycle control unit;the single-cycle control unit outputs control signal according to output voltage, input current and reference voltage so as to control on and off of a switching tube in the constant-current source output end; therefore, the average value of the output voltage during a switching period is equal to a reference value; the constant-current control unit is provided with an Anti-windup controller whichis capable of effectively preventing integral saturation phenomenon in the control process, so as to keep linear continuity of the controller, keep the output current constant and improve control precision; and the output current is subjected to PWM adjustment so as to continuously adjust light and improve electric energy utilization ratio.

The invention provides an OLED display backboard, a manufacturing method thereof and an OLED display device. The OLED display backboard comprises a substrate base plate which is provided with a firstsurface; a plurality of pixel units are arranged on the first surface, and each pixel unit comprises a reflection anode; a first color light-emitting functional layer is arranged on the surface, far away from the substrate, of the reflecting anode; a first transparent cathode which is arranged on the surface of the first color light-emitting function layer, and the orthographic projection of the first transparent cathode on the substrate only covers the orthographic projection of the first color sub-pixel on the substrate; a semi-transparent semi-reflective cathode which is arranged on one side, far away from the substrate, of the first color light-emitting functional layer, and the orthographic projection of the semi-transparent semi-reflective cathode on the substrate is not overlapped with the orthographic projection of the first color sub-pixel on the substrate; and a second color quantum dot color film and a third color quantum dot color film. The display backboard is high in light efficiency, free of visual angle color cast, low in pixel current and low in power consumption.

The invention discloses an imaging method and imaging device of an image sensor and an electronic device. The image sensor includes a pixel array and a micro lens array arranged on the pixel array. Each four adjacent pixels in the pixel array include a red pixel, a green pixel, a blue pixel and an infrared pixel. The micro lens array includes a plurality of micro lens. Each micro lens covers one pixel correspondingly. The imaging method includes reading output of each pixel in the pixel array; performing interpolation treatment on the output of each pixel so as to obtain a red component, a green component, a blue component and an infrared component corresponding to each pixel; acquiring the type of a current shooting scene; determining three-primary color output values of each pixel according to the type of the current shooting scene so as to output images according to the three-primary color output values of each pixel. By adopting the imaging method, image luminance during dark scene shooting is improved substantially and image color shift in non-dark scene shooting is avoided, so that user experience is improved.

The invention relates to a transparent polymer dispersed liquid crystal display device and a manufacturing method and application thereof. The transparent polymer dispersed liquid crystal display device comprises first and second substrates, first and second alignment layers and a polymer dispersed liquid crystal clamped between the first and second substrates, wherein the first alignment layer is formed on the first substrate, and the second alignment layer is formed on the second substrate. The transparent polymer dispersed liquid crystal display device is characterized in that the first and second substrates are ITO ((Indium Tin Oxide))-doped organic glass with the degraded surface, and the first and second alignment layers are uniaxially stretched polyvinyl alcohol grafted methyl methacrylate films. According to the transparent polymer dispersed liquid crystal display device, the alignment layers and the substrates, and the alignment layers and the polymer dispersed liquid crystal can be prevented from generating gaps caused by stripping.

The invention provides a plane/stereo switchable liquid crystal display device which is used for carrying out plane/stereo switching on the liquid crystal display device, a liquid crystal parallax barrier comprises a first transparent electrode layer which is provided with electrode holes, and the electrode holes are arranged by corresponding to sub-pixels of the liquid crystal display device. The plane/stereo switchable liquid crystal display device can not only observe a stereo picture from two directions, but also avoid the color cast phenomenon.

The invention provides a color cast control method for a liquid crystal display. The liquid crystal display is provided with a display panel and a timing control chip. Color compensation tables are arranged in the timing control chip. The display panel of the liquid crystal display is divided into a plurality of regions. Each region corresponds to a color compensation table in the timing control chip. Regional color compensation or overall color compensation is carried out on the display panel according to whether a viewer is at the middle position of the display panel or not. According to the method provided by the invention, regional color compensation and overall color compensation are combined to realize different color compensation methods in the cases of envisaging and squinting; different color compensation parameters are used in different regions in the case of squinting; the problem of color cast of a large viewing angle is improved; an intelligent sensing module is used to realize automatic color compensation selection.

The invention discloses a display panel and a driving method thereof. The display panel comprises a plurality of first data lines, a plurality of second data lines and a plurality of pixel rows. Each pixel row is provided with a plurality of pixels. A plurality of first sub pixels of an ith odd pixel and an ith even pixel and a plurality of second sub pixels of an i+1th odd pixel and an i+1th even pixel of each pixel row are electrically connected with one of the corresponding first data line and the corresponding second data line. A plurality of second sub pixels of the ith odd pixel and the ith even pixel and a plurality of first sub pixels of the i+1th odd pixel and the i+1th even pixel of each pixel row are electrically connected with the other one of the corresponding first data line and the corresponding second data line.

The invention provides terminal equipment for solving the problems of the existing terminal equipment that the common image information or face information used for tracking eye positions cannot be obtained at the same time and the obtained common image information has color cast. The terminal equipment comprises a first camera and a second camera, wherein the first camera is used for acquiring first image information; and the second camera is provided with a first optical filter capable of transmitting visible light and invisible fill light and is used for acquiring second image information including the face information. The terminal equipment can obtain the common image information and the face information for tracking the eye positions at the same time, and the obtained common image information has no color cast.

The invention provides a gamma voltage adjusting method, driving method and device for a curved display panel, and the method comprises the steps: determining the first gamma voltage of the plane display region of the curved display panel in a white balance state when the curved display panel is placed horizontally; according to the bending degree of the curved-surface display panel, dividing thecurved-surface display panel into at least one curved-surface display region, and bending each curved-surface display region by a preset angle relative to the plane display region; determining a second gamma voltage corresponding to each curved surface display region in a white balance state; and determining a compensation voltage corresponding to each column of data lines in each curved surface display region according to the first gamma voltage and the second gamma voltage. The display effect of the curved display panel is improved.

The invention provides a pixel unit which comprises a public electrode and at least two sub-pixels. The public electrode is in a plane shape and is laid on the sub-pixels. The public electrode is divided into multiple areas according to the different sub-pixels, at least one through groove is formed in each area of the public electrode, all the areas of the public electrode are provided with different numbers of through grooves, and all the through grooves are the same in size or all the sub-pixels are the same in area.

The invention provides a video monitoring image enhancement method based on color migration matching features. The problem of color enhancement under a monitoring video image is solved by using a color migration method according to the characteristics of the monitoring video image and the continuity and stability of the monitoring video image; under the same scene, the color features of the video image with good monitoring image quality are migrated to the video image needing to be enhanced, or the video image color information with more image color information and a block effect is subjected to color migration, so that the video image to be processed is subjected to color enhancement; a Gaussian pyramid is used for extracting feature points of the video image, so that it is guaranteed that the feature points of the videoimage under different scales can be extracted, the videoimage brightness texture is used for restraining the color, the block effect caused by color enhancement of the videoimage is reduced, videoimage information is enhanced while videoimage color enhancement is guaranteed, the image quality of a target person or a vehicle is good, and powerful support is provided for urban comprehensive management.

The invention relates to a touch display panel and a display device. The display panel comprises a touch electrode layer, wherein the touch electrode layer comprises multiple equal-area touch regions; each touch region comprises a touch electrode and a clearance region; a display substrate comprises sub-pixels of multiple colors; the area of sub-pixels of one color among the sub-pixels corresponding to the clearance region of each touch region is same. By virtue of setting same area of color resistance layers of each color corresponding to a slit region in the equal-area touch region, light rays emergent from the slit regions in each touch region do not generate color cast, so as to ensure that the light rays penetrating through the touch electrode layer have no color cast on the whole and further avoid the occurrence of a Newton ring phenomenon.

The embodiment of the invention relates to the technical field of image processing and provides an image enhancement method and device, an electronic device and a storage medium. The method comprisessteps of acquiring an RGB image acquired by an RGB camera, and an MONO image acquired by an MONO camera; segmenting the RGB image so as to acquire multiple first images and carrying out image segmentation on the MONO image so as to obtain multiple second images corresponding to the first images; and traversing each first image and according to the definition of the to-be-processed first images andthe definition of the second images corresponding to the to-be-processed first images, carrying out image enhancement on the to-be-processed first images so as to obtain result images. Compared withthe prior art, according to the embodiment, color channels in the RGB image are processed as a whole, so the result images will not suffer from color cast and the images are attractive and are provided with high definition.

The invention relates to a color film substrate, a display panel and a display device with the display panel. The color film substrate includes a substrate body, a plurality of color resistors and shading portions. The color resistors are arranged on the substrate body, are cured by color resisting liquid applied to the substrate body and are used for filtering light; each shading portion is arranged between the adjacent color resistors and is used for preventing interference of light between the two adjacent color resistors; each shading portion is provided with a groove for receiving the color resisting liquid applied to the shading portions. The display panel includes the color film substrate and an array substrate. The display panel helps improve the color offset problem.

The invention discloses a medium-long wave dual-band infrared image fusion method. The method comprises the following steps: 1, ; reading an image to be fused, processing a Y channel, extracting detail features of a medium-wave image, extracting difference features of the medium-wave image and a long-wave image, calculating reference mean values of a Cb channel and a Cr channel, calculating reference variances of the Cb channel and the Cr channel, calculating a mean value and a variance of a source image, transferring colors, superposing the features, and outputting a final fused image. The medium-long wave infrared image fusion algorithm provided by the invention is based on a color transfer theory, does not need to refer to that the image has a good visual effect in each scene, has extremely high environmental adaptability, has more radiation characteristics and detail characteristics, and is easy to popularize and apply.

The invention discloses a lens-lens barrel integrated black coating film. The lens-lens barrel integrated black coating film covers the surface of a lens barrel and comprises a three-layer film systemstructure, wherein the three-layer film system structure comprises a BlackA film layer, an Al2O3 film layer and a SiO2 film layer in sequence, the BlackA film layer is in contact with the lens barrel, the thickness of the BlackA film layer is 70-100 nm, the thickness of the Al2O3 film layer is 30-60 nm, and the thickness of the SiO2 film layer is 50-90 nm. The lens-lens barrel integrated black coating film can enable the color of a lens and the lens barrel to be basically consistent after being assembled, colour cast cannot generate, so that the aesthetic feeling and the using feel are greatly improved; and meanwhile, a manufacturing process of the lens-lens barrel integrated black coating film is simple and easy to popularize and use.