62results about How to "Eliminate color cast" patented technology

The invention relates to the digital image processing field and particularly relates to a white balance and dark primary color adaptive histogram underwater image enhancement method. The method comprises steps that step 1, color correction for an image is carried out through utilizing a dynamic threshold white balance algorithm; step 2, a dark channel map of the image after color correction is solved through utilizing a dark channel model; step 3, a weight factor of block images is calculated; step 4, underwater image processing is carried out through utilizing a CLAHE method; step 5,the weight factor and gray mapping relationship tables are utilized to acquire a final gray mapping relationship table of a block through fusion calculation; and step 6, a bilinear interpolation algorithm is utilized to calculate a gray mapping value corresponding to each pixel in block images one by one, enhanced block images are acquired, interpolation calculation for pixels connected between the adjacent block images is carried out, and images of underwater images after enhancement are acquired. The method has advantages of simple calculation and strong timeliness.

A liquid crystal display panel including a first substrate, scan lines extending along a first direction, data lines, active devices, pixel electrodes, common electrodes, a second substrate and a liquid crystal layer is provided. The pixel electrodes are respectively disposed in sub-pixel regions and coupled to the corresponding active devices. The common electrodes are respectively disposed corresponding to the pixel electrodes. Each common electrode or each pixel electrode includes plural stripe electrodes arranged side by side. Each stripe electrode includes a first section and a second section respectively disposed on two opposite sides of a reference axis, wherein a major axis of the first section forms an included angle with a major axis of the second section. The included angles of the stripe electrodes in each sub-pixel region are gradually varied along the first direction. The liquid crystal layer is disposed between the first substrate and the second substrate.

The invention provides a transistor array substrate which comprises a substrate, a plurality of scanning lines, a plurality of data lines and a plurality of pixel units. The scanning lines, the data lines and the pixel units are all arranged on the substrate. Each pixel unit comprises a first transistor, a second transistor, a first pixel electrode, a second pixel electrode, a first storage capacitor and a second storage capacitor. The second transistors and the first transistors are electrically connected with the same scanning line and the same data line, and are connected in series. The first pixel electrodes are electrically connected with the first transistors, while the second pixel electrodes are electrically connected with the second transistors. The first storage capacitors are electrically connected with the first transistors and the second transistors while the second storage capacitors are electrically connected with the second transistors.

The invention discloses a colorful filter plate and a liquid crystal display panel. The colorful filter plate comprises a transparent substrate, a patterned shade layer, and colorful filtering units. The patterned shade layer is arranged on the transparent substrate and is provided with a plurality of filtering regions. Each colorful filtering unit is corresponding to each filtering region. Areas of the plurality of filtering regions are not all the same. The colorful filter plate can make brightness of each sub pixel unit maintain consistent through a method of compensating filtering region transmittance, so as to eliminate a problem of color cast of images.

The invention relates to the technical field of displays, and specifically relates to an OLED three-dimensional display screen. When the pixel is a RGB pixel, a grating structure is arranged between a polaroid and a touch film to eliminate color cast of the display screen; and when the pixel is a non-RGB pixel, a lenticular element is arranged between the polaroid and the touch film to eliminate color cast of the display screen, and a color filter is also arranged between the lenticular element and the touch film so that the OLED three-dimensional display screen achieves uniform energy distribution and consistent angular brightness of sub-pixels in terms of visual angle, color cast is eliminated, and the image quality of naked eyes 3D is improved.

The invention provides a field color gamut liquid crystal display, comprising a backlight. The backlight consists of three light emitting diodes sequentially emitting red light, green light and blue light, and when a red sub-screen, a green sub-screen and a blue sub-screen are displayed, the brightness of the backlight is determined by lookup table of a current liquid crystal signal and the liquid crystal signal of a former picture. By adopting the field color gamut liquid crystal display, table lookup is carried out on the current liquid crystal signal and the liquid crystal signal of the former picture, and a product of the original backlight signal and the current liquid crystal signal is divided by the result of the lookup table to obtain a corrected backlight signal. Therefore, the phenomenon of color error or color offset caused by low response speed of liquid crystal is eliminated through changing the brightness of the backlight.

The present invention provides a method and system for color shading correction for a panoramic camera. The method comprises: acquiring a raw image of a YUV422 format of each lens in a panoramic camera, and converting each raw image into raw images with a Bayer format; performing statistics of R and B channel gain values of each camera in different rings according to the raw images with a Bayer format; calculating a polynomial fitting function of R and B channel gain values of each camera and integrated R and B gain values of each camera according to the R and B channel gain values, and calculating integrated average R and B gain values of all the cameras; and respectively calculating a color shading correction coefficient of each camera according to the integrated average R and B gain values and intensive R and B gain values. The method and system for color shading correction for a panoramic camera can allow the colors of a single camera in a panoramic image to be uniform and make colors of all the lenses consistent.

The invention discloses a gamma correction method and apparatus for a display module group. The method comprises: a time parameter value registered by a time register is obtained; the obtained time parameter value is assigned to a counter and the counter is started to start counting; if the counter completes timing, a compensation frequency parameter value registered by a compensation frequency register is corrected; gamma register value adjustment is carried out on one group of pre-stored compensation values corresponding to all gray scales and gamma correction is carried out on a display module group. According to the gamma correction method and apparatus disclosed by the invention, gamma register value adjustment can be carried out on one group of pre-stored compensation values corresponding to all gray scales and thus gamma correction is carried out on the display module group. Therefore, the device luminance can be compensated automatically; the color cast can be eliminated; and the influence on the display effect by device aging can be reduced.

The invention discloses a chip-on-film module. The COF module comprises a flexible substrate, a chip and a first set of terminals, wherein the chip is arranged on the flexible substrate, and the first set of terminals are arranged on the flexible substrate and electrically connected with the output end of the chip. All the terminals of the first set of terminals comprise metal bonding areas which are used for making contact with fan-out terminals of a display panel and have different areas, so that equivalent resistances on all fan-out circuits are the same or similar. The invention further provides the display panel. The display panel comprises a display unit and a set of fan-out terminals, wherein a plurality of pixel arrays are arranged on the display unit, the set of fan-out terminals are connected with the display unit, and all the terminals in the fan-out terminals comprise metal bonding areas which are used for making contact with the first set of terminals of the COF display module and have different areas, so that the equivalent resistances on all the fan-out circuits are the same or similar. According to the COF module and the display panel, the display color cast problem caused by resistance nonuniformity on the fan-out circuits on the Cell display panle can be eliminated.

In accordance with an embodiment, a display device may include a display panel including a plurality of pixels, a dimming controller for setting a first gamma correcting offset of a reference pixel among the plurality of pixels, setting a second gamma correcting offset of at least one pixel other than the reference pixel among the plurality of pixels, and generating a corrected gamma reference voltage per pixel using the first gamma correcting offset and the second gamma correcting offset and a data driver applying the corrected gamma reference voltage to each pixel of the display panel. According to an embodiment, there may be provided a display device capable of eliminating color shift by setting an offset for a gamma reference voltage per pixel and a driving method of the same.

The invention discloses a display substrate, a preparation method thereof and a display device. The display substrate comprises a plurality of pixel units, and each pixel unit comprises a plurality ofsub-pixels, wherein each sub-pixel comprises a first color sub-pixel, each sub-pixel comprises a color film structure layer, and each color film structure layer comprises a black matrix for limitinga pixel opening and a color film unit for covering the pixel opening. The display substrate comprises a first display area and a second display area located on the periphery of the first display area,small holes are formed in a black matrix of the first display area, the small holes are filled with light filtering units, and the light filtering units are made of the same material as color film units of the first color sub-pixels. The area of the first color sub-pixel of the first display area is less than the area of the first color sub-pixel of the second display area. The color cast of thefirst display area is eliminated by setting the area of the first color sub-pixel of the first display area to be less than the area of the first color sub-pixel of the second display area.

This invention discloses a method for eliminating color shift generated by high-low brightness in images including: converting image data into a frequency domain with luminance and chrominance signals then to just based on the brightness of pixels of different points to adjust the chrominance of each point pixel to further eliminate color shift of high and low brightness, further more, a linear format is used to eliminate chrominance, and the change is asymptotic therefore no fault phenomenon appears.

Provided are a pixel unit and an array substrate comprising the pixel unit, and a liquid crystal display device. The pixel unit comprises a scanning line (6), a signal line (1), a slit electrode (4), a coupling electrode (3) capable of cooperatively forming an electric field with the slit electrode (4), and a thin-film transistor, wherein a plurality of slits are formed on the slit electrode (4), the scanning line (6) and the signal line (1) are arranged crosswise and limit at least two sub-regions (I, II, III, IV). The coupling electrode (3) comprises at least two sub-electrodes respectively located in one of the sub-regions (I, II, III, IV). The slit electrode (4) corresponds to all the sub-regions (I, II, III, IV) and the extension directions of the slits located in different sub-regions (I, II, III, IV) are different. Therefore, enlarging the visual angles of different directions can effectively eliminate colour cast, and the aperture ratio can be effectively improved, thereby significantly improving the display quality.

The invention provides a touch control display panel and a touch control display device. The touch control display panel comprises a pixel array and a first touch control electrode layer, wherein the pixel array comprises a plurality of sub pixel arrays; each sub pixel array comprises a plurality of sub pixels arranged in the first direction and the second direction; the first touch control electrode layer comprises a plurality of first touch control electrodes; a first carving seam extending in the first direction is formed between every two first touch control electrodes; each first touch control electrode correspondingly covers one sub pixel array; in the plurality of sub pixels adjacent to each first carving seam, for each sub pixel array, the adjacent sub pixel in the first direction correspond to different colors. The touch control display panel and the touch control display device provided by the invention can solve the display problem of visible carving seams.

The invention provides a video signal conversion circuit and a television. The video signal conversion circuit comprises a blocking capacitor, a selection switch circuit, a buffer and an analog-digital conversion circuit, the blocking capacitor is connected to an input end of the selection switch circuit and used for filtering direct-current components in analog video signals, the selection switch circuit is used for selectively inputting the analog video signals, an input end of the buffer is connected with an output end of the selection switch circuit while an output end of the same is connected to an input end of the analog-digital conversion circuit, the buffer is used for receiving the input analog video signals, buffering the analog video signals and outputting the analog video signals to the analog-digital conversion circuit, and the analog-digital conversion circuit converts the received analog video signals into digital video signals. By the video signal conversion circuit, color shift of a low-brightness portion can be eliminated, and picture display effect can be improved.

The invention relates to a multi-layered LED (light emitting diode) lamp, wherein the LED lamp comprises a base, a circuit board, a driving power supply, LED illuminating bodies and a lamp cover, wherein the circuit board and the driving power supply are arranged in the cavity of the base; the LED illuminating bodies are installed at the surface of the base and are electrically connected with the circuit board; the lamp cover is arranged on the base; the surface of the base is at least provided with three light emitting surfaces of the LED illuminating bodies; and the light emitting surfaces are arranged in a layered manner, and each light emitting surface is provided with a plurality of LED illuminating bodies which are distributed uniformly. The multi-layered LED lamp has the following obvious and substantive characteristics: the LED illuminating bodies on the base are distributed in multilayers and are matched with the lamp cover, thus the light can be illuminated on the lamp cover uniformly, the ray of light emitted from the lamp cover is gentle, three-dimensional and rich, has no color cast, and is not dazzling; and because small power LED chips are adopted, heat capacity is decreased, the metal base is minimized, the lamp cover and a burning-proof cover are made of plastics, the weight and the manufacturing cost are lowered, the installation stability is improved, falling-off and scalding are prevented, and the energy-saving effect is good.

The invention provides a display panel and electronic equipment. The display panel comprises a substrate, a light-emitting layer, a packaging layer and a color film layer, wherein the light-emitting layer is positioned on the substrate, and is provided with a plurality of light-emitting units; the packaging layer covers the light-emitting layer; and the color film layer is located on the packaginglayer, and comprises a plurality of color film units corresponding to the light-emitting units one to one, wherein the display panel further comprises a plurality of light conversion units, and the light conversion units are located below the junction of any two adjacent color film units. The display panel and the electronic equipment provided by the invention can eliminate a chromatic aberrationphenomenon of the display panel at a large viewing angle.

The invention provides a method for eliminating an edge pixel color cast problem. The method comprises the following steps: determining an edge pixel region of an effective pixel array; determining atransversal compensation value and a longitudinal compensation value of the edge pixel region; respectively determining a first compensation value at a corner part and a second compensation value at anon-corner part of the edge pixel region; performing compensation on an output value of the pixel in the edge pixel region according to the first compensation value and the second compensation value;taking the weight by the transversal compensation value and the longitudinal compensation value to obtain the first compensation value at the corner part by using a curve compensation algorithm at the corner part of the edge pixel region; performing the compensation on an output value of the pixel in the edge pixel region according to the first compensation value so as to compensate the dark current at the corner part. The edge transition phenomenon is eliminated, the cross stripes and the vertical stripes of an image are eliminated, the color cast problem around the image is solved, the display effect of the image is improved, and the sensor quality is improved.

The invention discloses a method and a device for calibrating color cast of a flashlight. The method comprises the following steps of obtaining original brightness values of three-primary colors corresponding to a current flashlight; obtaining reference brightness values of three-primary colors corresponding to a reference flashlight; obtaining a brightness ratio of the three-primary colors according to the original brightness values and the reference brightness values; obtaining a newest gain value corresponding to the current flashlight according to the brightness ratio and a corresponding reference gain value of the reference flashlight in the current environment; and obtaining an original picture for opening the current flashlight to shoot in the current environment and utilizing the newest gain value to carry out picture processing on the original picture to eliminate the color cast of the current flashlight. Through the method, a problem of the color cast can be reduced when the flashlight is utilized to take pictures, and the user experience is improved.

The invention discloses a T-CON drive board applied to a display. The T-CON drive board comprises an input terminal, a main chip control module, a storage module, a power supply module, an adjusting module, a level conversion module and an output module. The input terminal is electrically connected with the main chip control module, the storage module, the power supply module and the adjusting module, the input end of the level conversion module is electrically connected with the main chip control module, the output end of the level conversion module is electrically connected with the output module, and the main chip control module is further electrically connected with the storage module and the power supply module. According to the invention, the optical compensation storage unit is arranged, DEMURA calibration is realized; therefore, the phenomena of color cast and uneven brightness of the large-size panel can be eliminated; the T-CON drive board has the advantages that the structure is simple and convenient and flexible to calibrate, CSF2211-A0N is adopted as a TCON IC, the 2K resolution ratio and the 165 Hz refresh rate can be achieved, the Source board and the TCON board canbe combined and optimized, the production efficiency is improved, and the production cost is reduced.

The invention provides a display panel and a preparation method thereof, the display panel comprises a light emitting device layer and a light filtering layer, the light filtering layer is arranged on the light emitting side of the light emitting device layer, and the light filtering layer comprises a color resistor and a light shielding layer which are arranged adjacently. The color resistor is provided with an extension part, and the extension part of the color resistor is stacked in a pixel interval region of the display panel to form a shading layer. Therefore, the problem of color cast of light emitted from the interior of the panel is effectively prevented through the stacked structure, and the display effect of the display panel is further improved.

The invention provides an image fusion method, electronic equipment and a storage device, and the method comprises the steps: obtaining a visible light image and a non-visible light image which are collected from a current scene; for at least part of first pixel points in the visible light image, obtaining second pixel points corresponding to the first pixel points from the invisible light image; wherein the first pixel points and the corresponding second pixel points represent the same target; obtaining fusion brightness based on the first brightness of the first pixel point and the second brightness of the corresponding second pixel point; determining a color adjustment proportion of the first pixel point based on the fusion brightness, the first brightness and the second brightness; adjusting the initial color of the first pixel point based on the color adjustment proportion to obtain a fused color; and obtaining an adjusted first pixel point based on the fusion brightness and the fusion color. Through the design mode, the fusion effect can be improved.

The invention belongs to the field of ocean engineering, and particularly relates to an underwater image enhancement method based on unsupervised color correction. According to the method, the limitation that the channel B is used as a protruding channel is improved, so that the color distortion problem of processing the non-blue-color-cast underwater image is effectively solved; The method comprises an RGB color model, a contrast correction method, an HIS color model and an underwater image enhancement method based on unsupervised color correction. Compared with a common underwater image enhancement method, the underwater image enhancement method has the advantages that the underwater image enhancement method is improved into a self-adaptive method and has good processing effects on different color cast; The image is effectively balanced, color cast is eliminated, the illumination is improved, and the true color is increased. The method is easy to implement, small in calculated amountand high in reliability, the feasibility of underwater optical image recognition is improved, and the method has positive significance for development of unmanned underwater vehicles in the aspects of underwater operation tasks and the like in the future.

The invention discloses a display synergistic film and a display device, and the display synergistic film comprises a substrate structure layer, a first light guide layer, and a second light guide layer. The first light guide layer is formed on the base material structure layer and is provided with a plurality of light guide structures which extend in a strip shape and are arranged at intervals, each light guide structure is provided with two side faces extending in the length direction of the light guide structure, and the side faces are arc-shaped faces. The second light guide layer is formed on the first light guide layer and fills the first light guide layer, and the refractive index of the first light guide layer is different from that of the second light guide layer. According to thedisplay synergistic film, the light intensity, the contrast ratio, the chromaticity and the like of a screen of a display device in a full-angle range can be enhanced, the visual angle is enlarged, the structure is simple, and production is easy.