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487results about How to "High color saturation" patented technology

Method and apparatus for ink jet printing

Ink jet printing is provided on large area substrates such as wide width textile webs. The printheads are driven by linear servo motors (633) across a bridge (630) that extends across the substrate. The timing of the jetting of the ink is coordinated with the motion of the printheads (640, 641), so that the heads can be rapidly moved and the ink can be jetted while the printheads are accelerating or decelerating as they move on the bridge. Preferably, ultraviolet (UV) light curable ink is jetted and first partially cured with UV light (645, 646) and then subjected to heating to more completely reduce uncured monomers of the ink on the substrate. Preferably, the heat is applied by contacting the substrate with a heated plate (661, 662). Ink jet printing is provided using ultraviolet (UV) light curable or other curable composition or stable or other printable substance. In certain embodiments the UV ink has a dye-component therein. The ink is jetted onto a substrate, the composition is cured, then heated to set the dye. Sublimation dye-based UV ink printing onto polyester is preferred. A release layer of protective material (702, 704) such as a TEFLON film or sheet, covers a substrate support (705, 706). A porous substrate to be printed, such as a textile material (711), is supported on or above the support. Ink is jetted onto the substrate, with some of the ink passing through pores in the substrate and landing on the protective material. UV curable ink is preferably used and is exposed by UV light from a UV light curing head, which solidifies the ink on the substrate. The UV curing light has a long enough focal length to focus on the surface of the substrate and also, where it passes through pores in the substrate, on ink on the protective material, thereby solidifying the ink on the protective material. When the substrate is removed from the support, the solidified ink on the protective material may be wiped from the protective material.
Owner:L & P PROPERTY MANAGEMENT CO

Backlight module of display device and white light LED

The invention discloses a backlight module of a display device and a white light LED. The backlight module comprises a lamp bar and a light guide plate, wherein the lamp bar is provided with a plurality of ultraviolet light LEDs, and the light-entering face of the light guide plate and the ultraviolet light LEDs are arranged oppositely. A path of the process from light emitted by the ultraviolet light LEDs to the light shot from the light-exiting face of the light guide plate at least comprises an RGB quantum dot fluorescent powder layer. The RGB quantum dot fluorescent powder layer comprises a red light quantum dot fluorescent screen, a green light quantum dot fluorescent screen and a blue light quantum dot fluorescent screen, wherein the red light quantum dot fluorescent screen, the green light quantum dot fluorescent screen and the blue light quantum dot fluorescent screen are sequentially arranged. The RGB quantum dot fluorescent powder layer generates high-purity white light under excitation of ultraviolet light emitted by the ultraviolet light LEDs. As the RGB quantum dot fluorescent powder layer is formed by sequentially arranging the red light quantum dot fluorescent screen, the green light quantum dot fluorescent screen and the blue light quantum dot fluorescent screen, color saturation of the backlight module is improved, and the problem of reabsorption of RGB quantum dot fluorescent powder is solved.
Owner:SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD

Dual laser light source system

The invention relates to a dual laser light source system. The dual laser light source system comprises a blue LD and a red LD, a beam splitting device, a fluorescent color wheel, a first drive device, a first beam combining device, a second beam combining device, a filter color wheel, a third drive device, a light collection device and a control device. The beam splitting device is used for partially transmitting and partially reflecting blue light and reflecting colored light newly generated by the fluorescent color wheel. The fluorescent color wheel can be used to at least convert the blue light into green light and reflect the green light. The first drive device is used to drive the fluorescent color wheel to rotate. The first beam combining device is used to combine red light and newly-generated colored light. The second beam combining device is used to combine the red light, the newly-generated colored light and the blue light. The third drive device is used to drive the rotation of the filter color wheel. The control device is used to control power switches of the first drive device, the second drive device, the third drive device, the blue LD and the red LD to make the fluorescent color wheel and the filter color wheel keep synchronization so as to generate timing colored light of a target optical power. Through the above method, the dual laser light source system provided in the invention can be used to improve the brightness and color saturation of a picture displayed through projection.
Owner:SHENZHEN ESTAR DISPLAYTECH

Transflective liquid crystal display panel and liquid crystal display

InactiveCN104199213AHigh color saturationConsistent color saturationNon-linear opticsLiquid-crystal displayButt joint
The invention discloses a transflective liquid crystal display panel and a liquid crystal display. The transflective liquid crystal display panel comprises an upper base plate, a lower base plate and a liquid crystal layer, wherein the upper base plate and the lower base plate are in butt joint, and the liquid crystal layer is arranged between the upper base plate and the lower base plate. The lower base plate comprises a plurality of sub-pixel units distributed in arrays, wherein each sub-pixel unit comprises a reflection area and a transmission area, the reflection area sequentially comprises a substrate base plate, a black matrix, a reflection layer and a first color filter layer in the direction from the lower base plate to the upper base plate, the transmission area sequentially comprises a substrate base plate and a second color filter layer in the direction from the lower base plate to the upper base plate, and the thickness of the first color filter layer is smaller than that of the second color filter layer. By means of the transflective liquid crystal display panel, it is ensured that difficulty in the preparation technology of the transflective liquid crystal display panel can be reduced under the conditions that color saturation of the reflection areas and color saturation of the transmission areas trend to consistence.
Owner:BOE TECH GRP CO LTD +1

Method nad apparatus for UV ink jet printing on fabric and combination printing and quilting thereby

InactiveCN1377313AChanging the time of exposure to energyIncrease or decrease the time of energy exposureSewing-machine elementsLayered productsUV curingRadiant heater
Provided are a method and device for inkjet printing onto fabrics (15) using ultraviolet (UV) ray-cured ink, wherein the ink is first partially cured by ultraviolet light (24) and then heated to more completely cure the ink. Printing takes place in a quilting machine (10) having a quilting table (27) and a printing table (25) upstream of the quilting table. Preferably, the printing station prints the multi-color design on only the top layer of fabric under the control of a programmed controller (35). The dot volume of the UV curable ink jetted onto the fabric was about 75 picoliters. A conveyor belt (20) moves the printed fabric from the printing station through the UV curing station (24), where a UV curing head either moves with or independently of the printing head to transfer the deposited UV The cured ink droplet is exposed to an ultraviolet beam of 300W per linear inch at a rate of about 1 joule of energy applied per square centimeter. The conveyor belt then passes the fabric through a heated drying station or an oven (26) where the fabric is heated to 300 degrees Fahrenheit for 30 seconds to 3 minutes. Preferably, the heating is done in a furnace with forced hot air, but other heating methods, such as infrared or other radiant heaters, may also be used. Before, or preferably after, heat curing, the fabric is combined with layers of other materials and, under programmed conditions, a quilted pattern is added using the printed pattern.
Owner:L & P PROPERTY MANAGEMENT CO

Optical fiber backlight module and liquid crystal display

The invention provides an optical fiber backlight module and a liquid crystal display. The optical fiber backlight module comprises a back board, a red LED (light emitting diode) light source, a green LED light source, a blue LED light source, multiple groups of optical fibers and prism lenses, wherein the red LED light source, the green LED light source and the blue LED light source are arranged on the side edge of the back board and are successively arranged; the optical fibers are arranged on the back board; the prism lenses are arranged on the optical fibers; the back board is provided with a plurality of grooves which are formed in parallel and are distributed at equal distances; the optical fibers are respectively fixedly arranged in the grooves; each group of optical fibers comprises a red light guide optical fiber, a green light guide optical fiber and a blue light guide optical fiber; the red light guide optical fibers, the green light guide optical fibers and the blue light guide optical fibers are respectively connected with the red LED light source, the green LED light source and the blue LED light source via couplers, and an area light source of three-primary colors (red, green and blue) can be provided for a liquid crystal panel, so that the liquid crystal panel can realize color display without a colorful color filter, a light penetration rate can be improved, and the color saturability of the liquid crystal display is improved.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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