52results about How to "Improve display color gamut" patented technology

The invention provides an optical coating composition, a fluorescent optical membrane and a preparation method thereof. The optical coating composition comprises the following components in parts by weight: 0.01-3 parts of red fluorescence quantum dot material, 1-40 parts of green fluorescence quantum dot material, 0-90 parts of solvent, 0-20 parts of photodiffusion agent, 5-60 parts of film-forming material and 0-10 parts of film-forming assistant. The weight ratio of the red fluorescence quantum dot material to the green fluorescence quantum dot material is (1:100):(1:10). The optical coating composition provided by the invention can be applied on a transparent substrate or existing optical membrane surface to form a fluorescent optical membrane. The fluorescent optical membrane formed by the optical coating composition can achieve the effect of enhancing the displayable color range of the emergent light source.

The invention provides an LED pixel arrangement structure, a printing type display device with the LED pixel arrangement structure and a preparation method of the display device, and suitable for the field of display technology. The LED pixel arrangement structure comprises multiple pixel units, each pixel unit comprises four different colors of sub pixels, namely a red sub pixel R, a green sub pixel G, a sky blue sub pixel B1 and a dark blue sub pixel B2, the sub pixels of four different colors in the same pixel unit are in 2*2 rectangular arrangement, a random vertical side of the 2*2 rectangle is used to construct a reference axis of the x-y system, the pixel unit are in mirror symmetry in the axis x and axis y directions, and the sub pixels of the same color of connected pixel units form a same-color sub pixel area in 2*2 arrangement.

The invention belongs to the display technology field and discloses a full-color display component for organic and inorganic quantum dot hybridization and preparing method thereof. The display component comprises a light emitting unit fixedly mounted on a substrate wherein the light emitting unit includes three light emitting photon units in blue, green and red respectively; each light emitting photo unit comprises the following elements in sequence: a cathode, an electron transmission layer, a light emitting layer, a hole transport layer, a hole injection layer and an anode. The light emitting layer of the blue light emitting photon unit is of organic materials; the light emitting layers of the red and green emitting photon units are of quantum dot materials; and the electron transport layers of the three light emitting photon units are of inorganic materials. According to the invention, through the use of the high efficiency and stability of the blue organic polymer materials and the high color purity of the green/red quantum dot light emitting layer materials as well as the characteristics of simple processing and in combination with the organic electron transport layer materials and the use of a solution processing method, it is possible to make a full-color display screen with high performance and high display color gamut at a low cost.

The invention provides an LED package. The LED package at least comprises a support, a wafer, weld lines and a sealing component, wherein the support is used for supporting the wafer and the weld lines, the wafer is used for emitting light capable of effectively exciting fluorescent powder or quantum dots, the weld lines are used for connecting the wafer and the support, the quantum dots are distributed in the sealing component, and the sealing component is located in a path of light emitted from the wafer, is in the shape of a lens and is used for wrapping the wafer and the support. The sizes of the quantum dots can be changed to control emission spectra of the quantum dots; the LED package has very good stability; because wide excitation spectra and narrow emission spectra are provided, the color rendering index of the LED package is effectively improved; the LED package is high in light emitting efficiency.

The invention provides ink and a preparation method thereof and particularly relates to printable ink containing organic-inorganic hybrid perovskite nanocrystals and a preparation method of the ink. The ink is prepared from 0.01wt%-5wt% of the organic-inorganic hybrid perovskite nanocrystals, 70wt%-99wt% of an organic solvent, 1wt%-30wt% of an optical and transparent polymer with a film-forming property and 0.1wt%-10wt% of a stabilizer. The ink has the viscosity ranging from 10 mPaS to 150 mPaS and has the surface tension ranging from 20 mN/m to 70 mN/m.

The invention discloses a colorful color filtering film, a colorful color filtering film display unit and an array structure of the colorful color filtering film. The colorful color filtering film display unit comprises two transverse pixel units and two longitudinal pixel units, the transverse pixel units and the longitudinal pixel units are arranged in a 2*2 array mode, each row and each line are respectively provided with one transverse pixel unit and one longitudinal pixel unit, each transverse pixel unit comprises red sub-pixels and green sub-pixels, the red sub-pixels and the green sub-pixels are arranged in a left-and-right mode, each longitudinal pixel unit comprises fourth-color sub-pixels and blue sub-pixels, a fourth color is one of the colors except for the three primary colors, and the fourth-color sub-pixels and the blue sub-pixels are arranged in an up-and-down mode. The array structure of the colorful color filtering film is formed by a matrix composed of the colorful color filtering film display units, and is arranged on the colorful color filtering film. According to a four-primary-color sub-pixel display unit structure, the resolution can be effectively improved, the fourth-color sub-pixels are additionally arranged on the basis of the three primary colors, the display color gamut is improved, and displayed colors are abundant.

The invention discloses a pixel array, a display panel and a display device. The pixel array comprises a plurality of pixel units, each pixel unit comprises a plurality of sub-pixels different in colors, any column of pixel units comprise at least two mixed color sub-pixel columns, and a plurality of sub-pixels in the mixed color sub-pixel columns are at least provided with two colors. According to the pixel array, the display panel and the display device, the cross-color seen from the left side and the right side can be improved, the color gamut of a displayed picture is increased, and the display quality is improved.

The invention relates to the technical field of display, and particularly relates to a manufacturing method of a high-efficiency light conversion color display film. The manufacturing method comprisesthe following steps that A) a substrate is provided and the substrate is cleaned; B) a pixel isolation wall is manufactured on the cleaned substrate; C) the quantum dot material of the correspondingcolor is printed in the designed pixel area; D) a transparent protection layer is additionally arranged on the prepared quantum dots; and E) the quantum dot plate is aligned and fit with the corresponding OLED display pixels so as to form a color display device. The beneficial effects of the manufacturing method are that the following advantages can be obtained by application of the manufacturingmethod of the high-efficiency light conversion color display pixel film: 1) the light utilization rate can be enhanced for multiple times; 2) the display color area is extended so that the display color is enabled to be better; and 3) the monochrome display device can be colorized.

The invention discloses a display panel and a display device to improve the display color gamut and color saturation of a liquid crystal display panel and omit polarizers, so that the device is simpler in structure, and cost is reduced. The display panel comprises an upper substrate, a lower substrate and a TFT (thin film transistor) array, wherein the TFT array is positioned between the upper substrate and the lower substrate. A PDLC (polymer dispersed liquid crystal) layer and a quantum dot layer are further arranged between the TFT array and the upper substrate.

The invention discloses a color film substrate and a manufacturing method thereof. The color film substrate comprises: an optical film layer which is in each pixel region on a substrate base plate and does not completely cover the pixel region, a black matrix surrounding each pixel region, and a protective layer covering the black matrix and each pixel region. The optical film layer and the protective layer are used to change phase of light. Thus, the optical film layer is covered but not completely covered on the pixel region, light rays emitting from the pixel region have different optical distances. When light in certain wavelength passes through the color film substrate, the part passing through the optical film layer and the part not passing through the optical film layer have phase difference, that is, light rays passing through the two regions have different phase changes, and thus light rays are overlaid to reinforce or overlaid to cancel, so that light rays in certain wavelengths cannot pass through the color film substrate. Through adjusting the thickness of the optical film layer, red light, green light, and blue light passing through the color film substrate can be respectively realized.

The invention embodiment provides a quantum-dot epoxy resin composite colloid and a fluorescent screen preparation method. The quantum-dot epoxy resin composite colloid comprises a matrix continuous phase prepared from epoxy resin, and the matrix continuous phase is combined with a quantum-dot material. The quantum-dot epoxy resin composite colloid is prepared from 30-60 wt% of epoxy resin, 30-60 wt% of a curing agent, 1-5 wt% of a curing promoter, 0.02-0.2 wt% of a red quantum-dot material, 0.3-4 wt% of a green quantum-dot material, 1-20 wt% of a filling particle, 0-3 wt% of a processing auxiliary agent.

A display panel (20) and a display device. The display panel (20) comprises a first substrate (21), a second substrate (22) and a liquid crystal layer (23) located between the first substrate (21) andthe second substrate (22). A plurality of pixel regions (SP) are formed on the first substrate (21). The liquid crystal layer (23) contains liquid crystal molecules (231). A first alignment layer (219) is arranged on the first substrate (21) and is close to the liquid crystal layer (23); a second alignment layer (224) is arranged on the second substrate (22) and is close to the liquid crystal layer (23); a polarizing plate (223) is arranged on the outer side of the second substrate (22); the polarizing plate (223) has a light-transmitting axis (P1). The first alignment direction (X1) of the first alignment layer (219) and the second alignment direction (X2) of the second alignment layer (224) are reversely parallel; the light guide plates are perpendicular to the direction of a light transmission axis (P1) of the polarizing plate (223); quantum rods (232) are doped in the liquid crystal layer (23); in each pixel region (SP), the quantum rods (232) with different sizes are mixed with the liquid crystal molecules (231); the liquid crystal molecules (231) are arranged in the first alignment direction (X1) and the second alignment direction (X2), the arrangement direction of the quantum rods (232) is consistent with that of the liquid crystal molecules (231), and the quantum rods (232) can convert incident non-polarized light into linearly polarized light with the same long axis direction.

The invention belongs to the technical field of display screen manufacturing and provides a method for increasing the display color gamut of an LED display screen. On the basis of determining the range of tricolor wavelength, an orange-yellow LED of which the wavelength is about 580nm is added at each pixel; then recalculation is carried out through a DVI to generate data of red, green, yellow and blue; and finally, a group of data signals is given to each of the four colors: red, green, yellow and blue, and the data signals of the four colors are scattered to red, green, yellow and blue lamps for display. According to the method, the orange-yellow LED of which the wavelength is about 580nm is added so that the color gamut which can be displayed by the LED display screen is a quadrangle. Compared with an LED display screen adopting the trichromatic theory, the display color gamut is increased by 10%, the display effect of the LED display screen is greatly improved, the production and use costs are low, and the method has strong popularization and application values.

The invention relates to a color enhancement film used for a color display device, and a preparation method thereof. The color enhancement film comprises a transparent basal membrane and a color enhancement coating coating the transparent basal membrane, wherein an optical wavelength conversion material is dispersively distributed in the color enhancement coating. The optical wavelength conversion material can at least partially convert light in a first predetermined wavelength scope into light in a second predetermined wavelength scope so as to improve color purity of three primary colors, i.e., red, green and blue, in a display backlight source, broaden the display color range and enhance color trueness of a display. The color enhancement film does not severely reduce the brightness of the display while substantially improving the color range of the display to 110% before use. At the same time, the color enhancement film can be functionally compounded with existing functional optical films in a display luminescence module, the functions include a light scattering function, a brightness enhancement function and an eye protection function, and therefore, increases of the total quantity and the total thickness of the optical films in the luminescence module are prevented.

The invention discloses a display panel and a manufacturing method thereof. The display panel comprises a transparent substrate, a color filter and a quantum dot color conversion structure, wherein the color filter and the quantum dot color conversion structure are sequentially arranged on the transparent substrate; the quantum dot color conversion structure comprises a resonant cavity definitionlayer and a quantum dot color conversion layer which are sequentially arranged on the side, which is away from the transparent substrate, of the color filter; a plurality of reflective resonant cavities which are periodically distributed are formed on the resonant cavity definition layer, and the quantum dot color conversion layer is at least arranged in part of the reflective resonant cavities and is in contact with the color filter. The reflective resonant cavity can narrow the emission spectrum of the quantum dots in the quantum dot color conversion layer, so that the display color gamut ofthe display panel is further improved, and the display quality is further improved.

The invention discloses a display device, comprising a plurality of pixel units, wherein the pixel units comprise a red light-emitting area, a green light-emitting area, a yellow light-emitting area,and a blue light-emitting area; the display device further comprises a blue light source and color film transparent substrates located on the light emitting side of the blue light source; the surfacesof the color film transparent substrates in the red light-emitting area, the green light-emitting area and the yellow light-emitting area close to the blue light source are respectively provided witha red filter layer, a green filter layer and a yellow filter layer; the red filter layer, the green filter layer and the yellow filter layer respectively emit red light, blue light and yellow light under blue light illumination; a transparent material layer is disposed on the color film transparent substrate in the blue light-emitting area; and the surfaces of the color film transparent substrates among the red light-emitting area, the green light-emitting area, the yellow light-emitting area, and the blue light-emitting area close to the blue light source are provided with black matrixes. The technical solution provided by the embodiment of the invention expands the display color gamut of the display device and improves the utilization rate of light emitted by the light sources.

The invention belongs to the technical field of display, and specifically relates to an organic light emitting display device and a manufacturing method thereof. The organic light emitting display device comprises a first electrode layer manufactured by at least a reflecting material, a second electrode layer manufactured by at least a semi-reflecting and semi-transparent material, and a luminouslayer between the first electrode layer and the second electrode layer. The luminous layer comprises a red light unit, a green light unit, and a blue light unit. A first green light compensating layeris arranged between the green light unit and the first electrode layer. In the organic light emitting display device in the structure, the first electrode layer forms a full-reflecting layer, and thesecond electrode layer forms a semi-reflecting and semi-transparent layer, the two layers form a microcavity structure. Through arranging the first green light compensating layer between the green light unit and the first electrode layer, green light optical length is increased, so as to increase the number of interference of the green light in the microcavity, and green light spectrum is narrowed, and purity is improved. The method for the organic light emitting display device is simple, and cost is reduced.

The invention discloses a quantum dot film packaging method and a packaged quantum dot film. The packaging method comprises the following steps: packaging barrier films on two sides of a quantum dot film in a hot pressing manner to obtain a packaged quantum dot film; wherein the quantum dot film is a composite film containing quantum dots and a polymer. According to the method, adhesive-free packaging is realized, and the production cost is reduced while the light-emitting stability of the quantum dot/polymer composite film is improved.

The invention discloses a method for repairing dead pixels of a four-primary-color display screen, and relates to repairing of the dead pixels of the display screen. The method comprises the following steps: 1) designing a four-primary-color pixel arrangement scheme, so that a sub-pixel with the same color is arranged around each sub-pixel to ensure that display can be completed by using the sub-pixels with the same color when the sub-pixels have dead pixels; 2) calculating the resolution limit of the human eyes to the pixel points under a certain distance; (3) employing optical simulation software for building a display array and a detection plane, enabling the display array to simulate the display effect of a sub-pixel screen with dead pixels, arranging the detection plane on the near surface of the dead pixels in the display array with the dead pixels as the center, moving the detection plane in the horizontal direction and the vertical direction, and recording the luminous flux in the coverage area; 4) fitting data in the optical simulation software, simulating the change of luminous flux in the movement of the detection plane without dead pixels, and changing the luminous flux weight of sub-pixels around the dead pixels to realize dead pixel repair. Influences brought by dead pixels are reduced, and the repairing method is faster and more convenient.

The invention discloses a quantum dot light conversion film for improving the color gamut and the resolution ratio of a Micro-LED and eliminating lamp spots (mura) and a preparation method of the quantum dot light conversion film. The quantum dot light conversion film comprises a transparent porous substrate, quantum dots, a first barrier film and a second barrier film. The transparent porous substrate is filled with the quantum dots; the first barrier film and the second barrier film are respectively attached to the upper surface and the lower surface of the transparent porous substrate; the transparent porous substrate is filled with the quantum dots through ink-jet printing.

The invention discloses a liquid crystal display panel and a display device. The liquid crystal display panel comprises a display liquid crystal box, the display liquid crystal box comprises a first opposite substrate, a first array substrate and a first liquid crystal layer, and the first liquid crystal layer is located between the first opposite substrate and the first array substrate; the first liquid crystal layer comprises liquid crystal molecules and dye liquid crystal molecules which are mixed with each other, the display liquid crystal box is provided with a plurality of first pixel units, a first pixel electrode is arranged on the first array substrate, and a first common electrode is arranged on the first opposite substrate; the display liquid crystal box is provided with a quantum dot layer corresponding to the first pixel unit. The liquid crystal molecules and the dye liquid crystal molecules which are mixed with each other are arranged in the display liquid crystal box, and the quantum dot layer is matched to display colors, so that the number of arranged polarizers is reduced, the light transmittance is increased, the contrast ratio is improved, and meanwhile, the display color gamut of a product can be improved.

The invention discloses a display panel and a color optical filter. The display panel comprises an active element array substrate, a display medium layer and a color optical filter. The color optical filter is arranged above the active element array substrate, and comprises a substrate and a yellow optical resistor arranged on the substrate, wherein the yellow optical resistor comprises a first fluorescent material, and the penetration rate of the yellow optical resistor between 600 nm light penetration spectrum and 800 nm light penetration spectrum is greater than 1, and the display medium layer is arranged between the active element array substrate and the color optical filter. The display panel and the color optical filter of the invention enable the picture color saturation and brightness displayed by the display panel to be improved.