437results about How to "Reduce color cast" patented technology

In a displaying method for use in an image display, an original gray scale is divided into a higher gray scale and a lower gray scale. Further, the color subpixels are divided into two groups corresponding to the higher and lower gray scales, respectively. The gray scale to be expressed by each subpixel is calibrated by weighing the original higher or lower gray scale for the pixel and the adjacent pixels and summing up the results. The color shift problem due to different visual angles can therefore be solved.

Optical films, and organic-light-emitting display apparatuses, include a high refractive index pattern layer including a first surface and a second surface facing each other. The first surface includes a pattern having grooves. The grooves each have a curved surface and a depth greater than a width. The high refractive index pattern layer is formed of a material having a refractive index greater than 1. Further included is a low refractive index pattern layer formed of a material having a refractive index smaller than that of the material constituting the high refractive index pattern layer. The low refractive index pattern layer includes a filling material for filling grooves. A tilt angle, θ, of each groove satisfies the following condition, 15°≦θ≦75°.

A liquid crystal panel according to an embodiment of the present invention includes: a liquid crystal cell; a first polarizer arranged on one side of the liquid crystal cell; a second polarizer arranged on another side of the liquid crystal cell; a negative biaxial optical element and a positive C plate arranged between the liquid crystal cell and the first polarizer; and an isotropic optical element arranged between the liquid crystal cell and the second polarizer. Here, the negative biaxial optical element is arranged between the first polarizer and the positive C plate.

An omnidirectional multilayer thin film is provided. The multilayer thin film includes a multilayer stack having a first layer of a first material and a second layer of a second material, the second layer extending across the first layer. The multilayer stack reflects a narrow band of electromagnetic radiation having a full width at half maximum (FWHM) of less than 300 nanometers (nm) and a color / hue shift of less than 30 degrees when the multilayer stack is exposed to broadband electromagnetic radiation and viewed from angles between 0 and 45 degrees. In some instances, the multilayer stack has a total thickness of less than 2 microns (μm). Preferably, the multilayer thin film has a total thickness of less than 1.5 μm and more preferably less than 1.0 μm.

The invention discloses a driving method for a liquid crystal panel, and provides the liquid crystal panel. The liquid crystal panel comprises M*N pixel units, and each pixel unit comprises a blue sub-pixel. The liquid crystal panel is divided into a plurality of display units, and each display unit comprises two pixel units. The gray scale values B of blue sub-pixels needed by the display units are respectively divided into a higher-order gray scale value BH and a lower-order gray scale value BL, which are respectively provided for two pixel units. The combination of the higher-order gray scale values BH and the lower-order gray scale values BL enables the brightness curve of the blue sub-pixels of the display units at a squint angle to approach a preset Gamma (gamma) curve, wherein gamma is from 1.8 to 2.4. The invention also discloses the liquid crystal panel driven through the above method.

A pixel circuit of a display panel is provided, which includes a light emitting element configured to emit light in accordance with a drive current, a current source including a driving transistor connected to the light emitting element, and the current source is configured to provide the drive current having a different amplitude to the light emitting element in accordance with a level of a voltage applied to a gate terminal of the driving transistor, an amplitude setting circuit configured to apply a voltage having a different level to the gate terminal of the driving transistor, and a pulse width control circuit configured to control a duration of the drive current by controlling the voltage applied to the gate terminal of the driving transistor.

A substrate for an organic light emitting display device and an organic light emitting display device are provided. The substrate to the organic light emitting display device includes a protective layer having a non-flat shape; a first electrode on the protective layer and having the non-flat shape; and a bank layer on the protective layer and the first electrode. The bank layer having an opening for exposing the first electrode. The protective layer is formed at the opening of the bank layer and a part of an area with the bank layer.

An optical film manufacturing method includes forming a master in which a shape corresponding to a plurality of micro-lens patterns is engraved, forming a low refractive index pattern layer in which the plurality of micro-lens patterns are formed, by using the master, forming a high refractive index material layer that has a higher refractive index than a refractive index of the low refractive index pattern layer, and imprinting the low refractive index pattern layer on the high refractive index material layer to form a high refractive index pattern layer, on a first surface of a substrate.

This invention relates to a LCD including multiple scanning lines, multiple data lines, pixels, a first switch circuit and a second switch circuit, in which, said multiple scanning lines include the Nth scanning line and the N+1 scanning lines and N is a positive integer, the pixels include a first sub-pixel and a second sub-pixel, in which, the first switch circuit is coupled to the Nth and the N+1 scanning lines, the first switch circuit controls the second sub-pixel, the second switch circuit is coupled to the Nth scanning line and controls the first sub-pixel displaying red, green, blue or white.

A light emitting display device according to an exemplary embodiment of the present disclosure includes: a first substrate; an insulating layer disposed on the first substrate and having an inclined portion; a first electrode disposed on the insulating layer; a light-emitting layer disposed on the first electrode; a second electrode disposed on the light-emitting layer; and a plurality of color conversion layers disposed on the second electrode. The first electrode includes an inclined portion that is inclined along the inclined portion of the insulating layer based on a surface parallel to the first substrate, and the light-emitting layer includes semiconductor nano-particles.

The invention discloses a display panel and a display apparatus, and aims to improve zigzag lines on the edge region of the display panel and improve the display effect of the display panel. The display panel comprises a display panel body; the display panel body comprises a display region with a special-shaped edge and a non-display region which surrounds the display region; the display region comprises a plurality of first pixel units arranged close to the special-shaped edge, and a plurality of second pixel units in array arrangement and far from the special-shaped edge; each first pixel unit is divided into two parts by the outline of the special-shaped edge; the non-display region is provided with a shielding layer which extends to the display region; and the shielding layer cuts eachsub pixel of one color of each first pixel unit into a light shielding region and a light transmitting region.

The invention discloses thin film transistor array substrate as well as application and manufacturing method thereof. The manufacturing method comprises at least the following steps of: providing a substrate; forming a plurality of thin film transistors on the substrate; forming a plurality of first pixel electrodes on the substrate; forming an electrode insulating layer on the first pixel electrodes; and forming a plurality of second pixel electrodes on the electrode insulating layer. The thin film transistor array substrate can be used in a liquid crystal display panel or a liquid crystal display device.

A stereoscopic image display apparatus includes a synthetic image (10) formed by synthesizing a plurality of original images from different viewing points, a lens array (12), and a diffraction element array (11) having the same pitch as the lens array. The diffraction element array has a layer (11a) made of a first material and a layer (11b) made of a second material and includes a blazed diffraction grating pattern with a depth d that is formed at an interface between the layer made of the first material and the layer made of the second material. When the refractive index of the first material and the refractive index of the second material are expressed as functions of an arbitrary wavelength λ in the visible light range as n1(λ) and n2(λ), respectively, the depth d is substantially equal to λ / |n1(λ)−n2(λ)|. Thus, the stereoscopic image display apparatus reduces color misregistration of images associated with chromatic aberration and is therefore capable of displaying high-resolution, wide-viewing-angle, and bright images.

The invention discloses a color-film substrate, a display panel and a display device. The color-film substrate comprises a display area, a transition area and a non-display area, wherein in a first color resistance group, adjacent to a shading layer, in the transition area, the area of at least two first color resistance is unequal, the area of at least two second color resistance is unequal or the area of at least two third color resistance is unequal; in the first color resistance group, the area sum of the first color resistance is S1, the area sum of the second color resistance is S2, and the area sum of the third color resistance is S3. By allowing the S1, the S2 and the S3 in the first color resistance group to be equal in a preset error range, the deviation between the brightness ratios of first color subpixels corresponding to the first color resistance, the second color subpixels corresponding to the second color resistance and the third color subpixels corresponding to the third color resistance and set values is small, and accordingly the color cast phenomenon of the edge areas of a special-shaped display screen can be reduced, and a display effect is increased.

The invention provides a remote sensing image de-fogging method based on a dark channel prior model and belongs to the technical field of image processing. Based on the idea of the traditional dark channel prior model de-fogging method, the invention provides the unmanned aerial vehicle image de-fogging method based on the dark channel prior model. By use of a downsampling method and an interpolation algorithm, calculation of transmissivity of the dark channel prior model is improved, and calculation complexity is greatly reduced. De-fogging processing is performed on quite white regions in the image, and a fog-free image recovering method combining the allowance mechanism based on an atmospheric scattering model is adopted, so the color rendition phenomenon is reduced. Finally, image enhancement processing is performed on a de-fogged image by use of the automatic color gradation algorithm, so brightness of the de-fogged image is increased, and high-quality de-fogging effects of the image are achieved. The unmanned aerial vehicle image de-fogging method is compatible with image de-fogging precision and efficiency, and is highly practical in unmanned aerial vehicle image de-fogging processing.

The invention discloses a high dynamic range image tone mapping method based on a retina adaptive model, which belongs to the field of digital image processing. The method comprises the following steps: (1) inputting a high dynamic range image; (2) acquiring the logarithm domain luminance L(p) of each pixel p in the image; (3) carrying out two-sided filtering on the logarithm domain luminance L(p) of each pixel p by using a two-sided filter, thereby obtaining the adaptive factor Aopl(p); (4) obtaining the luminance Lram(p) after carrying out nonlinear mapping on the logarithm domain luminance L(p) of each pixel p; (5) obtaining a red channel value I'(pR), a green channel value I'(pG) and a blue channel value I'(pB) after respectively carrying out nonlinear mapping on each pixel p in a red channel R, a green channel G and a blue channel B; and (6) constructing a new image file by using I'(pR), I'(pG) and I'(pB), thereby realizing the tone mapping of the high dynamic range image. The method simultaneously has the advantage of high speed in the global approach and the advantage of high capability of reserving image details in the partial approach.

The invention discloses an OLED display panel and a manufacturing method therefor. The OLED display panel comprises a substrate and a plurality of pixel units arranged on the substrate; each pixel unit comprises a plurality of sub pixel units, wherein the sub pixel units comprises light emitting layers and light extraction layers which are arranged in a stacked manner; and in the pixel units, the thicknesses of the light extraction layers corresponding to different sub pixel units are different, so that the difference value of brightness decay proportions, changed along with observation angles, of the light from different sub pixel units can be smaller than a set threshold value. By virtue of the way, the brightness decay proportions of the sub pixels of different colors can be kept consistent, so as to reduce color deviation of displayed images.

The invention provides a curved-surface liquid crystal display panel. The curved-surface liquid crystal display panel comprises colorful film substrates, array substrates and a liquid crystal layer. Each colorful film substrate is provided with colorful film color resistors and a black matrix, and each array substrate is arranged to be opposite to the corresponding color film substrate and provided with a pixel electrode and a data line, wherein the pixel electrode has a first edge and a second edge, the edge length of the first edge is larger than the edge length of the second edge, and the curving direction of the curved-surface liquid crystal display panel is the same as the extending direction of the first edge. The liquid crystal layer is arranged between the color film substrates and the array substrates. The invention further provides a curved-surface liquid crystal display device. According to the curved-surface liquid crystal display panel and the curved-surface liquid crystal display device, as the bending direction of the curved-surface liquid crystal display panel and the extending direction of the long edges of the pixel electrodes keep coincident, the color cast is reduced.

The present invention relates to a pixel structure suitable for liquid crystal display devices in a multidomain vertical tropism mode. The pixel structure comprises a scan line, a data line, a thin film transistor and a pixel electrode. The scan line and the data line define a pixel region which comprises a first sub-pixel region and a second sub-pixel region. The thin film transistor is arranged on a substrate and electrically connected to the scan line and the data line; the pixel electrode is arranged within the pixel region and electrically connected to the source electrode of the thin film transistor, wherein the height of part pixel electrodes in the first sub-pixel region is lower than the height of part pixel electrodes in the second sub-pixel region, and a layer of transparent first coupling capacitance medium layer is covered at least on the pixel electrode of the first sub-pixel region. The present invention further discloses a method for manufacturing the pixel structure and a liquid crystal display panel.

The embodiment of the invention provides a display panel and a display device. The display panel comprises a display area including a plurality of sub-pixels defined by a pixel defining structure. Along the direction from the central position to the boundary of the display area, the angle of slope of the pixel defining structure is gradually decreased among the sub-pixels of at least one color, such that an organic light-emitting material in an open region near the boundary of the display area has relatively high light-emitting efficiency, thereby solving the serious brightness attenuation ata large viewing angle at the boundary of the display area, reducing the brightness attenuation at the large viewing angle, weakening a color cast phenomenon, and further improving the display qualityof the display panel.

The invention relates to an underwater image enhancement method based on multi-residual joint learning, and belongs to the technical field of deep learning. The method comprises the following steps: 1) randomly cutting pictures with different resolutions in an underwater image data set containing a degraded image and a corresponding reference image into images with the same resolution, and establishing a training set of an underwater image enhancement model; 2) respectively processing the clipped degraded images in the training set by adopting a plurality of preprocessing methods, wherein eachpreprocessing method correspondingly obtains a preprocessed image; 3) taking the reference image as a label of a degraded image, and inputting the original image of the degraded image and the preprocessed degraded image into a multi-residual joint learning multi-branch convolutional neural network for training to obtain an image enhancement model; and 4) inputting a to-be-enhanced image into theimage enhancement model to obtain a processed enhanced image.

The invention discloses an organic light-emitting display panel and a manufacturing method of the organic light-emitting display panel. The organic light-emitting display panel comprises an upper substrate, a first electrode layer, an organic light-emitting layer, a second electrode layer and a lower substrate, which are sequentially arranged, wherein a refraction layer is arranged on one side, deviating from the organic light-emitting layer, of the first electrode layer and comprises a plurality of convex bodies; each convex body is provided with a sharp corner, and the sharp corner faces the side deviating from the organic light-emitting layer. According to the technical scheme, through the refraction layer with the convex bodies, light emitted by the organic light-emitting layer can be effectively converged, and parallel light is formed within scope of each view angle, so that color offset of view angles is reduced.

The invention discloses a liquid crystal panel driving method. The method comprises providing a liquid crystal panel, wherein the liquid crystal panel comprises a plurality of pixel units, and every pixel unit at least comprises green sub-pixels and blue sub-pixels; diving the liquid crystal panel into a plurality of display units, wherein every display unit comprises a first pixel unit and a second pixel unit which are adjacent to each other; for the gray-scale values B and G of the blue sub-pixels and the green sub-pixels which are required by the display unit, dividing the gray-scale values B and G into a combination of gray-scale values BH and BL and a combination of gray-scale values GH and GL, providing the two combinations to the corresponding first pixel unit and the corresponding second pixel unit respectively and enabling the brightness curve of the blue sub-pixels and the green sub-pixels of the display unit at a squint angle to be close to a preset Gamma curve, wherein Gamma is equal to 1.8-2.4. The invention also discloses the liquid crystal panel driven through the driving method.

The embodiment of the invention provides an array substrate and a display device, relating to the technical field of electronics. The problem of color offset generated by a display device is reduced to a certain degree. According to the scheme, a first pixel unit corresponds to a red resistor and comprises a first TFT channel formed between the source and drain of a first TFT; a second pixel unit corresponds to a green resistor and comprises a second TFT channel formed between the source and drain of a second TFT; a third pixel unit corresponds to a blue resistor and comprises a third TFT channel formed between the source and drain of a third TFT; and the ratio of the width to length of the third TFT channel is higher than that of the second TFT channel, or the ratio of the width to length of the third TFT channel is higher than that of the first TFT channel. The scheme is used for the array substrate and the display device.

An array substrate and a liquid crystal panel are disclosed. Each of the pixel cells in the array substrate includes a first pixel electrode, a second pixel electrode, and a third pixel electrode. The third pixel electrode connects to the second pixel electrode via a third transistor. In the 2D display mode, the third transistor is turn on such that the second pixel electrode and the third pixel electrode are electrically connected. At this moment, the three pixel electrodes are in the displaying state of corresponding 2D images. The voltage of the second pixel electrode is changed due to the voltage of the third pixel electrode. In the 3D display mode, the second pixel electrode and the third pixel electrode are not electrically connected such that the third pixel electrode is in the displaying state of the black images.

The invention relates to a high-dynamic-range image dual-screen display method based on color space switching. The method is characterized by comprising the following steps: S1, calculating a high-dynamic-range image and converting into an RGB (Red Green Blue) space image; S2, converting the RGB space image in the step S1 into an HSL (High Speed Logic) space image, and finishing the separation of brightness and tone; S3, performing separate self-adaptive logarithm mapping on the brightness L of the HSL space image in the step S2, finishing compression of the brightness, and enhancing the saturation S; S4, converting the HSL space image in the step S3 into an RGB space image; S5, performing front-back panel image segmentation on the RGB space image in the step S4; S6, performing dual-screen segmented display of front and back panel images generated in the step S5 on an LCD-FED (Liquid Crystal Display-Field Emission Display) dual-screen display screen. By adopting the high-dynamic-range image dual-screen display method, the problem of color shift is solved, and the detail expression capability is enhanced greatly.

A liquid crystal panel according to an embodiment of the present invention includes: a liquid crystal cell; a first polarizer arranged on one side of the liquid crystal cell; a second polarizer arranged on another side of the liquid crystal cell; a positive A plate and a positive C plate arranged between the liquid crystal cell and the first polarizer; and an isotropic optical element arranged between the liquid crystal cell and the second polarizer, wherein the positive A plate is arranged between the first polarizer and the positive C plate.