39results about How to "Avoid color deviation" patented technology

The invention provides a three-dimensional printer with a cleanable injecting head. The three-dimensional printer comprises a frame, a working table, a first fixed rod, a second fixed rod, a slide rod, a first driving mechanism, a lifting rod, a cleaning box, a second driving mechanism, a third driving mechanism, a fourth driving mechanism, the injecting head, a printing material box and a control unit, wherein the working table is mounted in the frame; the first fixed rod and the second fixed rod are mounted at the top of the frame in parallel, and are positioned above the working table; a plane where the first fixed rod and the second fixed rod are positioned on is parallel to the surface of the working table; the two ends of the slide rod are respectively mounted on the first fixed rod and the second fixed rod in a sliding manner; and the first driving mechanism is used for driving the slide rod to slide along the first fixed rod and the second fixed rod. The injecting head is withdrawn into the cleaning box, and is cleaned by cleaning fluid, so that a residual printing material in the injecting head is removed without influencing the next printing quality.

The invention discloses a display panel, a display device and a driving method. The display panel includes a substrate, a sub-pixel array, and a plurality of data lines. When the plurality of data lines input first voltage data signals and second voltage data signals to a plurality of sub-pixels in the sub-pixel array, the sub-pixels to which the first voltage data signals are input and the sub-pixels to which the second voltage data signals are input are alternately arranged; and among the plurality of sub-pixels of the same color in the same row, the number of the sub-pixels to which the positive-polarity first voltage data signals are input and the number of the sub-pixels to which the negative-polarity first voltage data signals are input are the same, and the polarity driving modes adopted by the adjacent two pixel groups in the same column are opposite. The display panel can improve the large viewing angle color shift problem of a large-sized display panel, at the same time, thecolor deviation of an output picture of the display panel can also be avoided, and the output picture quality of the display panel can be improved.

The invention discloses a display panel, a display device and a driving method. The display panel comprises a substrate, a sub-pixel array and a plurality of data lines, wherein the sub-pixel array includes a plurality of pixel groups. Sub-pixels for inputting first voltage data signals and sub-pixels for inputting second voltage data signal are alternately arranged, in the multiple sub-pixels ofthe same color in the same row, the number of sub-pixels for inputting positive first voltage data signals and the number of sub-pixels for inputting negative first voltage data signals are the same,and polarity driving modes used by two adjacent pixel groups in the same column are opposite. According to the display panel, a large view angle color offset problem of a large-sized display panel canbe improved, at the same time, a color deviation caused by difference of the number of the sub-pixels for inputting the positive first voltage data signals and the number of sub-pixels for inputtingthe negative first voltage data signals can be avoided, and the quality of an outputted picture is improved.

A light emitting diode includes a base, a light emitting chip, and a wavelength converting layer. The base is formed with a recessed portion that has a bottom wall surface, and a sidewall surface extending upwardly from the bottom wall surface and cooperating with the bottom wall surface to define a receiving space. The light emitting chip is provided on the bottom wall surface of the receiving space, and has a top chip surface disposed below a top surface of the base, and a peripheral chip surface extending downwardly from the top chip surface and being substantially parallel to and forming a gap with the side wall surface of the recessed portion. The wavelength converting layer is filled in the receiving space in the recessed portion so as to cover the top chip surface and the peripheral chip surface of the light emitting chip.

The invention discloses a display panel, a display device and a driving method. The display panel comprises a substrate, a sub pixel array and a plurality of data lines. Among the plurality of sub pixels at the same rows, the sub pixels with first voltage data signals inputted and the sub pixels with second voltage data signals inputted are arranged alternately; the first voltage data signal and the second voltage data signal are inputted into the two sub pixels at one same column in one same pixel unit respectively; the first voltage data signals and the second voltage data signals are inputted respectively into the sub pixels with the same colors at the same columns in the adjacent pixel units; and among the multiple sub pixels with the same colors at the same rows, the number of the subpixels with positive first voltage data signals inputted is the same as the number of the sub pixels with the negative first voltage data signals inputted. Therefore, the large-view-angle color castproblem of the large-size display panel can be improved; and the quality of the outputted picture of the display panel is improved.

The invention discloses a display panel, a display device and a driving method. The display panel is composed of a substrate, a sub pixel array, and a plurality of data lines. When the plurality of data lines input first voltage data signals and second voltage data signals into a plurality of sub pixels in the sub pixel array, the sub pixels with the first voltage data signals inputted and the subpixels with the second voltage data signals inputted are arranged alternately; and among the multiple sub pixels with the same colors at the same rows, the number of the sub pixels with positive first voltage data signals inputted is the same as the number of the sub pixels with the negative first voltage data signals inputted and the polarities of the data signals of the multiple sub pixels at the same columns are identical with each other. According to the display panel disclosed by the invention, the large-view-angle color cast problem of the large-size display panel can be improved; and the color deviation problem of the outputted picture of the display panel can be avoided, so that the quality of the outputted picture of the display panel is improved.

The present invention discloses a color sequence offset modulation method and device, which modulates the colored backlights of a multi-color backlight source to have a dark interval in the time points of shifting the colored backlights and makes the dark interval coincide with the close delay interval caused by the delayed response of liquid crystal, whereby the latter colored backlight will not mix with the former colored backlight during the close delay interval, wherefore the present invention can avoid the color deviation caused by color mixing and can present the designed colors correctly.

The invention discloses a display panel, a display device and a driving method. The display panel comprises a substrate, a subpixel array and multiple data lines. When the data lines input first voltage data signals and second voltage data signals into the subpixel array, subpixels inputting the first voltage data signals and subpixels inputting the second voltage data signals are alternately arranged, and in the subpixels with same color and in a same row, number of the subpixels inputting the first voltage data signals with positive polarity and number the subpixels inputting the first voltage data signals with negative polarity are equal. The problem of large-view-angle color offset of large-size display panels can be improved, and color offset of pictures output by the display panel can be avoided, so that quality of the pictures output by the display panel is improved.

The invention discloses a light-emitting assembly, a manufacturing method thereof and a light-emitting device. The light-emitting assembly comprises an epitaxial substrate, an N-type material layer, a light-emitting layer, a P-type material layer, a passivation layer, an anode bonding pad and a cathode bonding pad, wherein the anode bonding pad extends from the upper surface of the P-type material layer to the upper surface of the epitaxial substrate along the passivation layer; and the cathode bonding pad extends from the upper surface of the P-type material layer to the surface of the N-type material along the passivation layer and then extends to the upper surface of the epitaxial substrate. On the one hand, the bonding pads are arranged on the side wall and the bottom of the light-emitting layer to form the light-emitting assemblies, color deviation caused by light mixing of different-color light rays emitted by the two adjacent light-emitting assemblies is avoided, and therefore the display quality is improved; on the other hand, the solder paste is coated on the side wall and the bottom of the bonding pad to form the solder paste layer, so that the contact area of the solder paste layer and the bonding pad of the driving substrate is increased, the push-pull resistance of the light-emitting assembly is improved, the light-emitting assembly is prevented from falling off due to stress, and the display quality is improved.

The invention discloses a method and a system for quickly displaying a paint solid color. The method comprises the following steps of providing water-based paint,placing the water-based paint on a substrate, wherein the substrate is used for removing moisture in the water-based paint and providing a support carrier for forming a film after the water-based paint loses the moisture,and after the water paint loses water, forming a film on the support carrier for color development. The water-based paint is placed on the water absorption substrate, the water is rapidly removed, such that the paintfilm forming rate is improved, the paint can complete the film forming operation within the relatively short time, and the development color is the real color of the painted paint, such that the colordeviation relative to the color card or the wet paint during the paint selection process can be avoided so as to achieve the paint selection purpose of what you see is what you get.

The invention relates to a laser light source illumination and display system. The system comprises a laser module, a wavelength conversion device, a reflection cup and a light pipe; and a beam of laser emitted by the laser module is focused on a transmission type fluorescent color wheel to generate light rays with converted wavelength, and the light rays with converted wavelength and part of light rays with original wavelength are collected into the light pipe through the reflection cup. The system has the advantages that the light collecting efficiency is high, and the light rays radiated bythe two sides of the transmission type fluorescent color wheel is collected; the light rays with converted wavelength are directly filtered and purified through coatings on the two sides of the fluorescent color wheel, the other filtering color wheel can be removed, so that the space and the cost are reduced, and meanwhile, the color deviation caused by the matching error of the filtering color wheel is avoided; the angle of the light rays which are finally collected in the light pipe is small, namely, the light spreading amount is small, and the follow-up optical path design of a projector can become simple; and the trouble of multi-optical-path light combining is avoided.

A printer includes printing unit provided on a conveying path of a recording sheet and sheet feed unit provided on the downstream and upstream sides of the printing unit in a conveying direction of a recording sheet. The printer includes a platen roller, a first sheet feed roller, a second sheet feed roller, a first branch transmission gear group, a second branch transmission gear group, and thrust amount adjusting unit. A tooth trace of one of the gears of each of the first and second branch transmission gear groups has an inclination angle with respect to an axial direction, and the first and second branch transmission gear groups are formed of first and second idler gears including inclined gear portions of which inclined directions of tooth traces are the same as each other.

Disclosed is a direct type reflective sheet structure, comprising a reflective sheet, on which a plurality of light emitting diode light sources are arranged in an array. A plurality of triangular prism-shaped microstructures is arranged at intervals on the reflective sheet around each of the light emitting diode light sources. Each of the microstructures has a reflective surface facing the light emitting diode light source to reflect light emitted by the light emitting diode light source. Further disclosed is a direct type backlight module. By implementing the embodiment of the present invention, it can avoid the appearance of color deviation on the display panel and reduce the loss of light.