A METHOD FOR ENHANCING COLOR RICHNESS OF DISPLAYS

Abstract

The present invention relates to a method (100) for widening color space with a much reduced thickness compared to film applications, by coating lower and upper surfaces of a light waveguide that is used within displays such as tablet and mobile phone with color enriching materials.

Claims

1. A method (100) for widening color space with a much reduced thickness compared to film applications in displays such as tablet and mobile phone, characterized by steps of: coating materials, which form an oxygen and moisture barrier, on lower and upper surface of a light waveguide being used in displays by spray coating (101); coating color enriching materials on the light waveguide, which is coated with an oxygen and moisture barrier on the upper and lower surface thereof, by spray coating (102); and re-coating the light waveguide, which is coated with a color enriching material, with a material forming an oxygen and moisture barrier (103).

2. A method (100) according to claim 1; characterized in that before a light waveguide being used in edge-lit displays is integrated into the related display, its upper and lower surfaces are coated by spraying transparent metal oxide nanoparticle solutions, i.e. preferably Al.sub.2O.sub.3 nanoparticles which enable to form an oxygen and moisture barrier (101).

3. A method (100) according to claim 2; characterized in that surfaces of a light waveguide—upper and lower surfaces of which are coated with transparent metal oxide nanoparticle solutions—are coated with quantum dot and nanoplate solutions having color enriching characteristic by means of spraying method (102).

4. A method (100) according to claim 3; characterized in that the quantum dots used increase color richness in display technologies; whereas nanoplates provide sharp (pure) colors and have a high absorption coefficient.

5. A method (100) according to claim 4; characterized in that upper and lower surfaces of the light waveguide coated with color enriching materials are coated by spraying transparent metal oxide nanoparticle solutions—preferably Al.sub.2O.sub.3 nanoparticle—in order to protect them against oxygen and moisture (103).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0008] “A Method for Enhancing Color Richness of Displays” realized to fulfil the objectives of the present invention is shown in the FIGURE attached, in which:

[0009] FIG. 1 is a view of a flowchart of the inventive method.

[0010] 100. Method

[0011] The inventive method (100) for widening color space with a much reduced thickness compared to film applications in displays such as tablet and mobile phone comprises steps of: [0012] coating materials, which form an oxygen and moisture barrier, on lower and upper surface of a light waveguide being used in displays by spray coating (101); [0013] coating color enriching materials on the light waveguide, which is coated with an oxygen and moisture barrier on the upper and lower surface thereof, by spray coating (102); and [0014] re-coating the light waveguide, which is coated with a color enriching material, with a material forming an oxygen and moisture barrier (103).

[0015] In the inventive method (100); before a light waveguide being used in edge-lit displays is integrated into the related display, its upper and lower surfaces are coated with spraying transparent metal oxide nanoparticle solutions, i.e. preferably Al.sub.2O.sub.3 nanoparticles which enable to form an oxygen and moisture barrier (101). Surfaces of a light waveguide—upper and lower surfaces of which are coated with transparent metal oxide nanoparticle solutions—are coated with quantum dot and nanoplate solutions having color enriching characteristic by means of spraying method (102). The quantum dots used enable to increase color richness in display technologies; whereas nanoplates provide sharp (pure) colors and have a high absorption coefficient. Lastly, upper and lower surfaces of the light waveguide coated with color enriching materials are coated by spraying transparent metal oxide nanoparticle solutions—preferably Al.sub.2O.sub.3 nanoparticle—in order to protect them against oxygen and moisture (103).

[0016] With the inventive method (100), a sandwich-like structure is created by coating upper and lower surfaces of a light waveguide with a material forming an oxygen and moisture barrier, a color enriching material and again a material forming an oxygen and moisture barrier, respectively. A structure obtained in this way enables to form a physically fine structure without requiring an extra film thickness particularly on small-area displays.

[0017] The inventive method (100) enables to obtain fine surfaces which avoid unwanted display thickness that may occur by inserting a new physical layer into the display, in displays wherein physical fineness is important.

[0018] In an embodiment of the invention, the said method (100) can be applied by using materials that will meet the color requests required for monochrome color converter application on light-diffusing layers as well.

[0019] Within these basic concepts; it is possible to develop various embodiments of the inventive method (100) for enhancing color richness of displays; the invention cannot be limited to examples disclosed herein and it is essentially according to claims.