Display system

Abstract

A display system comprising: a backlight unit with a light-emitting array; an LCD panel; and a color filter with one or more absorbing dyes and one or more dye-enhancing compounds, wherein the color filter consists of a plurality of pixels, each pixel consists of red, green, and blue subpixels, the subpixels are made of resin, the one or more absorbing dyes and the one or more dye-enhancing compounds are arranged within the resin of the at least one color set of the red, green, and blue subpixels within the color filter.

Description

Technical FieldThe present invention relates to backlight modules for electronic display systems comprising light management materials.BackgroundAs light emitting diodes (LEDs) have appeared and their increased use in electronic display products such as LCD displays, blue light has become a health risk. Short-wave blue light or high-energy natural blue light is associated with retinal light damage and is considered a causative factor in the development of macular degeneration after prolonged solar radiation. The daily screen time continues to increase, particularly since the beginning of the COVID-19 pandemia, and users are increasingly exposed to the high-energy blue light of their devices. While the long-term health effects are being studied at present, the burden on the eyes and other immediate effects of using displays are impacting humans daily, and the use of devices can impact the circadian rhythm and sleep behavior. In addition to the known effects, eye symptoms such as overextension of the eyes and dry eyes may increase. Therefore, reducing high-energy blue light emissions from devices is of critical importance, and targeted solutions can be implemented in the display panel components.Displays on handhelds, tablets, computers, and other devices are going towards higher resolution and more true color balance. Various methods can be used to achieve resolution and color. However, many high-performance displays have LEDs that can lead to high blue components in the output spectrum. Many of these devices are battery powered and users normally expect a long battery life. A long battery life normally requires low power consumption and various light saving measures. In these displays, eye safety is often not prioritized as a design target. A growing number of medical investigations show that the "toxic" blue part of the color spectrum is harmful to the eyes and can lead to long-term vision disorders and vision loss. Moreover, more and more findings suggest that certain parts of the light spectrum may have adverse effects on the natural daily rhythm of a human. This disclosure describes materials that can greatly reduce the stress of harmful blue and ultraviolet light and the incorporation of these materials into mobile phones, tablets, or monitors equipped with LED backlight systems. These materials can be optimized depending on wavelength and volume to maintain the white point of the color. Many of these materials reduce the overall light transmission. However, as described in this disclosure, some of these materials can reduce the harmful portion of the spectrum to a range of less harmful optical wavelengths. In this manner, balance can be achieved between reducing deleterious color frequencies, maintaining optical clarity, and maintaining true white balance with minimal loss of display brightness. With current medical insights into increasingly popular displays and consumer needs for high quality displays in mind, the system of the present disclosure uniquely solves several requirements.Here, we describe a method for reducing blue light emission based on light absorption. In some cases, removing or converting light without subsequent emission of light in the visible region of the electromagnetic spectrum may result in the brightness of a display (measured and / or perceived) being reduced. In some cases, the power consumption of the display is increased to compensate for the decrease in brightness associated with this absorption. This may be relative to the power consumption of the reference display. In general, an increased power consumption of the display may be undesirable and may have a negative effect on the battery life, in particular in portable devices.The present invention claims that selective application of color absorbing dyes within each color of a display color filter reduces the risk of blue light, minimizes the adverse effects on brightness changes, and extends the overall color gamut at this point. This is particularly evident when compared to the resulting effect achieved with the backlight unit (hereinafter "BLU") level implementation.SummaryTo ensure eye safety, display systems are provided that incorporate materials into mobile, tablet, or PC displays that can reduce the exposure to harmful or toxic blue and ultraviolet light. The present disclosure addresses deleterious color frequencies in the visible electromagnetic spectrum while providing balance between reducing deleterious color frequencies, maintaining optical clarity, and maintaining true white balance with minimal loss of display brightness. A backlight module (unit) is provided for a display system, including materials whose portions can be converted to less harmful light wavelengths or recycled.The present invention provides a modification of the resulting spectral emissions from systems with LCD displays or LED backlight systems, including the use of dyes or dye combinations at the level of the color filters of these display systems. These dyes reduce deleterious color frequencies in the visible electromagnetic spectrum while maintaining balance between reducing deleterious color frequencies, maintaining optical clarity, and maintaining true white balance with minimal loss of display brightness. They can absorb the parts.The present invention improves color transfer and can also improve color. Improvements in the color filter layers of display systems have the potential to improve transmittance, brightness, and color gamut. In one embodiment, there is a filter with high transmittance or low color gamut. In another embodiment, color filters may improve transmittance. Color filter layers may contain certain dyes, pigments, or compounds that affect certain wavelengths and reduce the toxicity of blue light. The colorant limits the color value range of the emission to reduce overlap / leaks between subpixels and thus potentially improve the color gamut of the resulting emission.In one aspect, a display system is disclosed that includes a backlight unit having a light emitting arrangement, a liquid crystal panel, and a color filter having one or more absorbing dyes, wherein the one or more absorbing dyes are at least one of subpixels included therein. The system may further include a light emitting diode integrated with the light emitting array, a reflector adjacent to the light emitting array, a diffuser opposite the reflector, a thin film transistor array layer, and a cover glass layer. A liquid crystal panel may be constructed of a liquid crystal layer adjacent to a color filter and placed between two panel plates.In some cases, the system further comprises a first brightness enhancing layer and at least one polarizer, the first polarizer positioned adjacent to the color filter. In addition, the second brightness enhancement layer may be adjacent to the first brightness enhancement layer. Moreover, the second polarizer may be placed next to the backlight unit.In some cases, the one or more absorbing dyes are soluble blue light absorbing dyes included in the blue sub-pixels of the color filter, wherein the blue light absorbing dyes absorb blue light and may have a transmittance in the wavelength range of 415-435 nm reduced. The system may also include a short wavelength absorber that absorbs light at wavelengths less than 415 nm. Alternatively or additionally, the system may further comprise a long wavelength absorber that absorbs light at wavelengths above 480 nm. In some cases blue light absorbing dyes can reduce the toxicity factor of blue light by up to 20%.In some cases, the one or more absorbing dyes are soluble green light absorbing dyes included in the green sub-pixels of the color filter, and the green light absorbing dye may absorb green light and have a transmittance in the wavelength range of 490-570 nm may be reduced. Moreover, the one or more absorbing dyes include short wavelength absorbers that absorb light at wavelengths below 500 nm, long wavelength absorbers that absorb light at wavelengths above 575 nm, or both.In some cases, the one or more absorbing dyes are soluble red light absorbing dyes included in the red sub-pixels of the color filter, wherein the red light absorbing dyes can absorb red light and reduce transmittance for wavelengths below 620 nm. Moreover, the one or more absorbing dyes comprise short wavelength absorbers that absorb light at wavelengths less than 590 nm.Optionally, the one or more absorbing dyes are at least one of a soluble blue dye that absorbs in the wavelength range of 415-435 nm, a soluble green dye that absorbs in the wavelength range of 520-550 nm, and any combination thereof. It may be. The one or more absorbing dyes may be at least one of organic dyes, metal complex dyes, porphyrin compounds, coumarins, retinal pigments, and phthalocyanine compounds.In some cases, brightness may be reduced by up to 10% compared to a display system without one or more absorbing dyes. Moreover, the color scale may change by less than 5%.Optionally, one or more absorbing dyes may be placed in at least one of a blue sub-pixel, a red sub-pixel, a green sub-pixel, and any combination thereof.In another aspect, a backlight unit is illuminated with a light emitting arrangement, emits light through a liquid crystal panel, and absorbs the light with a color filter having one or more absorbing dyes, wherein the one or more absorbing dyes are present in the color A method for using a color filter in a display system is disclosed, wherein the color filter is disposed in at least one color set of sub-pixels of a color filter.In this disclosure:The term "light absorbing material" or "light absorbing layer" refers to an optical management material that absorbs only light in a certain wavelength range.The term "light converting material" or "light converting layer" refers to an optical management material that re-emits light in a different (e.g., higher) wavelength range.The term "optical film" refers to a layer of light absorbing or light converting material disposed adjacent to or over a transparent support layer.The term "contiguous" refers to layers that are either directly contiguous or separated by at most one other layer.The terms "blue light" or "toxic blue light" refer to light having a wavelength range of about 400 nm to about 500 nm and about 415 nm to about 455 nm, respectively.The term "disposed on" refers to a layer that is in direct contact with or abuts another layer.The term "light emitting diode array" denotes one or more light emitting diodes in a typically two-dimensional matrix.The term "color filter" refers to an array of blue, red and green sub-pixels arranged in a single layer within an optical stack.The term "optical stack" refers to layers within a backlight unit that emit light, are optically transparent to that light, or alter the properties of that light. These layers may be contiguous."Blue light fraction" refers to the ratio of the light emitted from the display in the range 415-455 nm to the light emitted from the display in the range 400-500 nm, which is less than 50%. where L(λ) is the spectral irradiance in μW cm -2 nm -1.The term "blue light toxicity factor" (BLTF) refers to the weighted harmful blue ratio versus display brightness calculated according to the toxicity weighting factor B(λ).Wo:Δλ=1L(λ): Spectral beam density (μW cm -2 nm -1)B(λ): Blue light hazard functiong(λ): CIE 1931 RGB luminance function683 Maximum spectral luminous efficiency constant (683 lumens per watt at 555 nm).The term "color space" refers to the entire gamut available on a particular device.The term "luminance" refers to the intensity of light emitted from a surface per unit area in a particular direction.The features and advantages of the present invention will become more fully understood from the following detailed description, which should be read in conjunction with the accompanying drawings.BRIEF DESCRIPTION OF THE DRAWINGThe drawings are schematic and are not intended to limit the scope of the invention in any way. Drawings are not necessarily to scale. FIG. 1 is a non-limiting diagram showing an exploded view of various layers of a display panel. FIG. 2 is a non-limiting diagram showing an example of a transmission spectrum of a blue dye modified color filter. FIG. 3 is a non-limiting graph of the spectral power distribution of a simulated display of blue dye absorption on a color filter. FIG. 4 is a non-limiting graph of the spectral power distribution of a simulated blue dye absorption display at the backlight unit level. FIG. 5 is a non-limiting diagram showing an example of a transmission spectrum of a green dye modified color filter. FIG. 6 is a non-limiting graph of the spectral power distribution of a simulated display of green dye absorption on a color filter. FIG. 7 is a non-limiting graph of the spectral power distribution of a simulated green dye absorption display at the backlight unit level. FIG. 8 is a non-limiting diagram showing an example of a transmission spectrum of a red dye modified color filter. FIG. 9 is a non-limiting graph of the spectral power distribution of a display simulating the absorption of red dye on a color filter. FIG. 10 is a non-limiting graph of the spectral power distribution of a simulated red dye absorption display at the backlight unit level. Figure 11 is a non-limiting diagram of possible transmission spectra of colour filters with blue and green dye modifications. FIG. 12 is a non-limiting graph of the spectral power distribution of a display simulating the absorption of blue and green dyes on color filters. FIG. 13 is a non-limiting graph of the spectral power distribution of a simulated blue and green dye absorption display at the backlight unit level. Figure 14a is a non-limiting illustration of the simulated spectral power distribution of the absorption of red, blue and green dyes at the backlight unit plane using the original unmodified color filter. FIG. 14 bis a non-limiting representation of a spectral power distribution plot simulating the absorption of red, blue and green dyes at the level of the dye modified backlight unit.Figures 15a-c are non-limiting representations of simulated spectral power distributions of red, green and blue dye absorption at the backlight unit level for each dye type. FIG. 16 ais a non-limiting illustration of a spectral power distribution plot of simulated red, blue, and green color filter modifications using the original unmodified RGB. FIG. 16 bis a non-limiting illustration of a simulated spectral power distribution illustration of the color filter modification red, blue and green with modified RGB.FIGS. 17 a- care non-limiting representations of simulated red, green, and blue dye spectral power distributions in color filter modification for each of the identified color target dyes. Figure 17d is a non-limiting diagram showing the color gamut without and with the modification dye added to the color filter. Figure 18a is a non-limiting representation of the simulated spectral power distribution of an unmodified pigment dispersion with red, green and blue dyes. Figure 18b is a non-limiting representation of the simulated spectral power distribution of dye modified blue and green dye ink pigment dispersions.Figures 19a-c are non-limiting representations of simulated spectral power distributions of red, green and blue pigment dye dispersions for each of the identified color target dyes. Figure 20a is a non-limiting diagram showing a representation of the simulated spectral power distribution of the red, blue and green pigment dispersions without any modifications. Figure 20b is a non-limiting illustration of the simulated spectral power distribution of dye modified red, blue and green pigment dispersions.Figures 21a-c are non-limiting representations of simulated spectral power distribution representations of red, blue and green dye pigment dispersions with dyes at the level of the backlight unit. FIG. 21 dis a non-limiting diagram showing the color gamut when no modified pigment is added to the color filter and when the modified pigment is added. Figure 22a is a non-limiting illustration of the simulated spectral power distribution of an unmodified pigment dispersion with red, green and blue dyes. Figure 22b is a non-limiting representation of simulated spectral power distributions of dye modified blue and green dye ink pigment dispersions.Figures 23a-c are non-limiting representations of simulated spectral power distributions of red, green and blue pigment dye dispersions for each of the identified color target dyes. Figure 24a is a non-limiting diagram showing a representation of the simulated spectral power distribution of the red, blue and green pigment dispersions without any modifications. Figure 24b is a non-limiting representation of the simulated spectral power distribution of dye modified red, blue and green pigment dispersions.Figures 25a-c are non-limiting representations of simulated spectral power distribution representations of red, blue and green dye-pigment dispersions with dyes at the level of the backlight unit. Figure 25d is a non-limiting diagram of the color gamut with and without modified dyes and pigments added to the color filter. FIG. 26 is a schematic cross-sectional view of a display system according to the present disclosure. FIG. 27 is a schematic cross-sectional view of a display system showing standard pigments in each subpixel set of a color display. FIG. 28 is a schematic cross-sectional view of a display system of the present disclosure showing the additional presence of colorant in one of the subpixel color sets. FIG. 29 is a schematic cross-sectional view of the display system of the present disclosure showing the additional presence of colorant in one of the subpixel color sets. FIG. 30 is a schematic cross-sectional view of a display system of the present disclosure showing the additional presence of colorant in one of the subpixel color sets. FIG. 31 is a schematic cross-sectional view of the display system of the present disclosure showing the additional presence of colorant in two subpixel color sets. FIG. 32 is a schematic cross-sectional view of the display system of the present disclosure showing the additional presence of colorant in two subpixel color sets. FIG. 33 is a schematic cross-sectional view of the display system of the present disclosure showing the additional presence of colorant in two subpixel color sets. FIG. 34 is a schematic cross-sectional view of the display system of the present disclosure showing the additional presence of colorant in all subpixel color sets. FIG. 35 is a schematic cross-sectional view of a display system of the present disclosure showing the additional presence of a primary colorant in all subpixel color sets and the presence of a secondary colorant in one of the subpixel colors. FIG. 36 is a schematic cross-sectional view of a display system of the present disclosure showing the additional presence of a primary dye in all subpixel color sets and the presence of a secondary dye in one of the subpixel colors. FIG. 37 is a schematic cross-sectional view of a display system of the present disclosure showing the additional presence of a primary dye in all subpixel color sets and the presence of a secondary dye in one of the subpixel colors sets. FIG. 38 is a schematic cross-sectional view of a display system of the present disclosure showing the additional presence of primary dyes in all subpixel color sets and the presence of secondary dyes in two of the subpixel color sets. There is one. FIG. 39 is a schematic cross-sectional view of a display system of the present disclosure showing the additional presence of primary dyes in all subpixel color sets and the presence of secondary dyes in two of the subpixel color sets. FIG. 40 is a schematic cross-sectional view of a display system of the present disclosure showing the additional presence of primary dyes in all subpixel color sets and the presence of secondary dyes in two of the subpixel color sets. There is one. FIG. 41 is a schematic cross-sectional view of a display system of the present disclosure showing the additional presence of a primary dye in all subpixel color sets and the presence of a secondary dye in all subpixel color sets. FIG. 42 is a schematic cross-sectional view of a display system of the present disclosure showing the additional presence of primary dyes in all subpixel color sets and the presence of dye enhancing compounds in all subpixels color sets. FIG. 43 ais a schematic cross-sectional partial view of the display system of the present disclosure showing the additional presence of a dye and a dye enhancing compound in one of the subpixel color sets. FIG. 43 bis a schematic cross-sectional partial view of the display system of the present disclosure showing the additional presence of a dye and a dye enhancing compound in one of the subpixel color sets. FIG. 43 cis a schematic cross-sectional partial view of the display system of the present disclosure showing the additional presence of a dye and a dye enhancing compound in one of the subpixel color sets. FIG. 44 ais a schematic partial cross-sectional view of a display system of the present disclosure showing the further presence of a primary dye, a secondary dye, and a dye enhancing compound in one of the subpixel color sets. FIG. 44 bis a schematic partial cross-sectional view of the display system of the present disclosure showing the further presence of a primary dye, a secondary dye, and a dye enhancing compound in one of the subpixel color sets. FIG. 44 cis a schematic partial cross-sectional view of the display system of the present disclosure showing the further presence of a primary dye, a secondary dye, and a dye enhancing compound in one of the subpixel color sets. Figure 45 is a non-limiting graph showing dye absorption after heat exposure in the absence of a dye enhancing compound. Figure 46 is a non-limiting graph of dye absorption after heat exposure in the presence of a dye enhancing compound. Figure 47 is a non-limiting graph showing dye absorption over time in the presence of varying amounts of dye enhancing compounds. Figure 48 is a non-limiting graph showing dye absorption after heat exposure in the absence of a dye enhancing compound. Figure 49 is a non-limiting graph of dye absorption after heat exposure in the presence of a dye enhancing compound. Figure 50 is a non-limiting graph showing dye absorption over time in the presence of varying amounts of dye enhancing compounds. Figure 51 is a non-limiting graph showing transmission values over the wavelength spectrum of an apparatus containing a blue filter ink before and after it has been subjected to thermal stress. Figure 52 is a non-limiting diagram showing transmission values over a wavelength spectrum before and after thermal exposure of an apparatus containing a blue filter ink, a dye and a dye enhancing compound. Figure 53 is a non-limiting graph showing transmission values over the wavelength spectrum of a device containing a red filter ink before and after it has been subjected to thermal stress. Figure 54 is a non-limiting diagram showing transmission values over a wavelength spectrum before and after thermal exposure of an apparatus containing a red filter ink, a dye and a dye enhancing compound. Figure 55 is a non-limiting graph showing transmittance values over the wavelength spectrum due to the presence of dye in a blue filter ink before and after thermal loading. Figure 56 is a non-limiting graph showing transmittance values over the wavelength spectrum due to the presence of dye in a red filter ink before and after thermal loading.DETAILED DESCRIPTIONReferring now to the drawings, various embodiments will be described in detail. Reference to various embodiments does not limit the scope of the claims appended hereto. Moreover, the examples described herein are not intended to be limiting, but merely to illustrate some of the many possible embodiments of the appended claims. It is to be understood that various omissions and substitutions of equivalents may be contemplated where circumstances suggest or are appropriate, but do not depart from the spirit or scope of the claims appended hereto. It is intended to cover any application or embodiment. It should also be understood that the terms and terminology used herein are for descriptive purposes only and should not be considered limiting.The present invention relates to the application of light filtering materials to colour filters of panel displays. Color filters are important components in the color reproduction of LCD televisions, computer monitors and mobile devices such as smartphones and tablets. In a typical display panel, the light emitted by an LED is distributed by a backlight unit (BLU) to a series of functional layers and color filter layers. The color filter layer consists of a series of light in three primary colors: red, blue and green. In the present disclosure, dyes may be added to color filters or color filter layers to adjust the filtering of light, particularly high energy blue light, to produce less harmful and more color efficient blue light. Moreover, dyes may be added to color filters or color filter layers to improve color space while minimizing brightness loss. Additional modifications to the color filters are described herein which may provide additional advantages in color gamut and selectivity.The disclosed color filter improvements include dyes that can absorb certain wavelengths of light and are used to modify the elements of an LCD display panel, particularly the color filter or backlight unit (BLU), or they contain more than one light absorbing material. The wavelength ranges of interest are in the blue light range at 415 nm to about 435 nm, in the green light range at 490 to 570 nm, and in the red light range at 620 nm and above. Thus, this application discloses various dyes having selected wavelength absorption properties. These selected dyes can modify the emission of LED display panels to reduce the amount of blue light and even toxic blue light, with minimal effects on color properties such as brightness and limited color gamut. Examples of dyes having such properties include porphyrin-based compounds, coumarins, retinal pigments, phthalocyanine compounds and other additives.The present invention describes selective reduction of toxic blue light and color enhancement with organic dyes or metal complex dyes, mainly using dyes and / or pigments, at the level of color filters. The unique properties of selected organic dyes and metal complex dyes exhibit excellent absorption at desired wavelengths. However, there are secondary and undesirable absorptions in other parts of the spectrum by the same dyes. The ability to filter at desired locations and avoid undesired absorption and / or filtering is particularly suitable for color filters and is unique in this disclosure. More specifically, the present disclosure may reduce the toxicity of blue light and reduce the overlap of color emissions. Color filters can also improve the color gamut of the resulting light emission.The backlight unit with the disclosed light management material may absorb light in a first wavelength range and re-emit light in a second wavelength range having a different (e.g., higher) wavelength. This disclosure contemplates light management materials that absorb blue light, particularly toxic blue light. Useful light converting and light absorbing materials are described, for example, in U.S. Patent No.The embodiment of FIG. 1 is an exploded view of the various layers of a display system made up of panels including a color filter 112 and a backlight unit ("BLU") 102, as well as a possible view of the relative position of each panel. FIG. 1 is an embodiment of a schematic diagram of an embodiment of a display system according to the present disclosure, showing the positions at which a light conversion layer or a light absorption layer (blue filtering) may be inserted in addition to a possible color are filter layers. As shown, the color filter system 100 includes a backlight unit 102 that, in some embodiments, includes at least one other light guide plate, a reflector plate, a diffuser plate, a brightness enhancement film, a polarization control layer, etc. A BLU component 104 may be included. Typically, the light guide plate may include at least one other BLU component 104, such as a reflector, a diffuser, a brightness enhancement film, a polarization control layer, etc. A transparent or translucent colorless block of material (glass or polymer) that can guide light. Light guide plates can be made from a variety of materials, including glass, polyacrylate, polycarbonate, and other transparent polymers. Other display components are those that scatter and distribute the light across backlight units 102- 104 (and other components that make up the backlight unit).More specifically, FIG. 26 shows an example of a backlight unit integrated display system. The display system 300 may include a liquid crystal panel (LC panel) 350 and a lighting assembly 301 arranged to provide illumination light to the LC panel 350. The LC panel 350 includes an LC layer 352 disposed between the panel plates 354. The plate 354 may include electrode structures and alignment layers on its inner surface to control the alignment of the liquid crystals within the LC layer 352. These electrode structures may be arranged to define pixels of the LC panel. One or more panels 352 may also include color filters that color the image displayed by the LC panel 350.The LC panel 350 may be positioned between the upper absorbing polarizer 356 and the lower absorbing polarizer 358. The combination of absorbing polarizers 356, 358 and LC panel 350 allows control of light transmission from lighting assembly 301 to the viewer, who is generally at the top of FIG. 26 and is generally facing downward (FIG. 26) toward which they are looking display system 300. The controller 304 may selectively activate pixels of the LC layer 352 to generate an image viewed by a viewer. On the absorbing polarizer 356, one or more optional layers 357 may be provided, for example, to provide the display with optical functionality and / or mechanical and / or environmental protection.The lighting assembly 301 may include a backlight 308 and one or more light management films 340 disposed between the backlight 308 and the LC panel 350. The backlight 308 of the display system 300 may include a light source 312 that generates light that illuminates the LC panel 350. The light source 312 may include any suitable illumination technology. In some embodiments, the light source 312 is a light emitting diode (LED), and in some cases may be a white LED. The illustrated backlight 308 may be a "direct-illumination" backlight in which a series of light sources 312 is positioned behind the LC panel 350 over most or all of the panel area. However, the backlight 308 shown is merely a schematic diagram and many other backlight configurations are possible. For example, some display systems include "side lights" in which a light source (e.g., an LED) is placed on one or more sides of the light guide and the light of the light source may be distributed over most or all of the area The LC panel 350." may include a backlight. Backlight 308 also includes a reflective substrate 302 to reflect light from light source 312 away from LC panel 350. The reflective substrate 302 also helps to recycle light within the display system 300.A light management film assembly 340, also called a film stack, backlight film stack, or light management unit, may be placed between the backlight 308 and the LC panel 350. The light management film 340 may influence the illumination light emitted from the backlight 308 to improve the operation of the display system 300. The light management film 340 does not necessarily include all of the components shown and described herein.The array of light management film 340 may include a diffuser plate 320. The diffuser plate 320 may diffuse the light received from the light source 312 and increase the uniformity of the illumination light incident on the LC panel 350. Diffuser 320 is any suitable diffuser film or diffuser.The light management unit 340 may include a reflective polarizer 342. Although the light source 312 typically generates unpolarized light, about half of the light generated by the light source 312 may not be transmitted through the LC layer 352 because the low absorption polarizer 358 may only transmit a single polarization state. However, reflective polarizer 342 may be used to reflect light absorbed by low absorption polarizer 358. As a result, this light can be recycled by reflection between reflective polarizer 342 and the underlying display components, including reflective substrate 302. At least a portion of the light reflected from the reflective polarizer 342 is unpolarized and then returned in a polarized state to the reflective polarizer 342, which is transmitted through the reflective polarizer 342 and the low absorption polarizer 358 to the LC layer 352. Thus, the reflective polarizer 342 may be used to increase the amount of light emitted from the light source 312 that reaches the LC layer 352, resulting in a brighter display output. Reflective polarizer 342 may be any suitable type of reflective polarizer.In some embodiments, a polarization control layer 344 may be provided between the diffuser plate 320 and the reflective polarizer 342. The polarization control layer 344 may be used to change the polarization of the light reflected from the reflective polarizer 342, thereby increasing the proportion of recycled light that passes through the reflective polarizer 342.The arrangement of the light management film 340 also includes one or more brightness enhancement layers. The brightness enhancement layer includes a surface structure that redirects off-axis light in a direction that is closer to the axis of the display. This increases the amount of light propagating on-axis through the LC layer 152, thereby increasing the brightness of the image viewed by the viewer. An example of a brightness enhancing layer is a prismatic brightness enhancing layer having a series of prismatic ribs which redirect illumination light by refraction and reflection. An example of a prismatic brightness enhancement layer is BEF prismatic film available from 3M. Other types of brightness enhancement layers may include non-prismatic structures.In the embodiment shown in Fig. 26, a first brightness enhancement layer 346a is disposed between the reflective polarizer 342 and the liquid crystal panel 350. The prismatic brightness enhancement layer 346a typically provides optical gain in one dimension. An optional second brightness enhancement layer 346 bmay also be included in the light management layer array 340, the prismatic structure of which is orthogonal to the prismatic structure of the first brightness enhancement layer 346 a. Such configuration increases the optical gain of the display system 300 in two dimensions. In other exemplary embodiments, brightness enhancement layers 346 a, 346 bmay be disposed between the backlight 308 and the reflective polarizer 342.As a schematic illustration, the components of the display system 300 are not drawn to scale and generally shown with greatly exaggerated thickness (vertical in FIG. 26 ) as compared to lateral (left-to-right). Many elements of the display system 300 (including, but not limited to, 302, 320, 342, 344, 346a, 346b, 352, 354, 356, and 357) have two dimensions that are generally orthogonal to their thickness (i.e., perpendicular to the plane) of FIG. 26 ) and an area that approximately corresponds to the visible area of the display ((also sometimes referred to as a "display area").Returning to FIG. 1, the BLU 102 may be located adjacent to or in close proximity to one or more polarization filters 106 that transmit light of certain polarizations and block light waves of other polarizations. In some embodiments, the polarization filter 106 helps reduce reflections and glare by filtering polarized light due to reflection from non-metallic surfaces. The purpose of the color filter backlight unit system 100 is to use colored dyes in at least one layer to absorb the light passing through the system and distribute the light evenly over a two-dimensional plane on a part of the BLU, for example, a light.In an embodiment, a thin film transistor array (hereinafter "TFT") 108 is disposed adjacent to or near the polarizer layer 106. The TFT array layer 108 may be a layered or thin array and may include a photosensitive array and / or detector elements comprised of small pixels. A pixel includes a photodiode (or a charge collector electrode, and sometimes a storage capacitor) and other elements that absorb electrons and generate a charge. The TFT array layer 108 is controllable and serves to control the redrawing output of the display for viewing by the user. In some cases, it may also be controlled to reduce light transmittance and color.A liquid crystal panel 110 is provided near or adjacent to the TFT array layers 108 of the display system 100. The display system 100 may optionally include a liquid crystal panel (LC panel) 110 and a lighting assembly arranged to provide illumination light to the LC panel (not shown). The LC panel may include an LC layer disposed between panel plates, and the panel plates may include electrode structures and alignment layers on inner surfaces thereof to control alignment of liquid crystals within the LC panel 110. These luminaires may be arranged to define the pixels of the LC panel. Color filters 112 may also be included in one or more panels that color the image displayed by the LC panel 110. In some embodiments, additional plates or present plates may contain dye. Dyes or, in some cases, pigments may be included to selectively improve the absorption and / or emission and transmission of light for viewing by a user of the display system. Depending on the dyes or pigments contained in the layer or plate, the reduction of brightness or light transmittance by X % may be reduced depending on the materials or compounds used and the amount used. This improves the resulting color, glare, brightness, and other resulting display light.The display system 100 of FIG. list is merely an example, and the systems of this disclosure are not limited to use with systems similar to the display system 100. The system of the present disclosure may also be advantageously used with other types of display systems that do not necessarily include liquid crystal display technology.The display system may include another layer that is a color filter. The color filter layer 112 includes a pixel array, each pixel consisting of color sub-pixels (e.g., a red sub-pixel, a green sub-pixel, and a blue sub-pixel). As shown in FIG. 1, a black matrix may limit the space between the individual subpixels. The red, green and blue subpixels may be colored by ink and pigments suspended in the matrix. Although the term "pigment" is used frequently in this disclosure to describe the color provided to the subpixels, this term also includes what is also known in the art as "ink.". Unless otherwise indicated herein, both pigment and ink refer to the colors used to make subpixels of a particular color.For example, FIG. 27 is a schematic cross-section of a display system showing standard pigments in each subpixel set of a color display. In particular, the display system may include a backlight unit 402 having a reflective substrate 404 and a light source 406. Adjacent backlight unit 402 is glass substrate 408, followed by electrode 410. A liquid crystal layer 412 may be placed between the electrode 410 and the electrode 414. Adjacent electrode 414 is a color filter with a black matrix 416 separating the spaces between sub-pixels 418. In some cases, the black matrix 416 may be interspersed between at least some of the subpixels 418, as shown in FIGS. 27-34. However, in other cases, the black matrix 416 may be a separate layer that abuts the sub-pixels 418. A glass substrate 420 may be placed adjacent to the black matrix 416 and / or the sub-pixels 418, through which the transmitted light 424 reaches the user's eye. In some embodiments, additional layers may be present, for example, one or more polarization layers, scattering layers, one or more brightness enhancement layers, or other optional display layers.As shown in FIG. 27, each subpixel 418 may be composed of a matrix containing a colored pigment / ink 422 suspended in the matrix and providing the color for that particular subpixel. For example, a red subpixel 418 amay include a red pigment / ink 422 ain its matrix, a green subpixel 418 bmay include a green pigment / ink 422 bin its matrix, and the blue subpixel 418 cmay include blue pigment / ink 422 csuspented in its matrix.The color filter layer 112 may also include dyes (such as soluble dyes), pigments, compounds, or any combination thereof that may affect the color transmissivity of the color filter layer 112. The effect depends on the type of dye, pigment or compound and the amount present. In one example, the toxicity of blue light could be reduced. Color can affect the resulting display, with blue dyes decreasing the transmittance of blue light, green dyes decreasing the transmittance of green light, and red dyes decreasing the transmittance of red light.The incorporation of dyes into 112 could improve the color gamut and effectively reduce the toxicity of blue light due to the unique properties of color filters 112. In some cases, color filters 112 may alter emission at the light plane. When a dye, for example a blue dye, is added, secondary absorption may occur, and the addition of a blue dye to the color filter 112 may mainly affect the blue color. In addition, the three sub-pixels within each pixel (red, green, blue, etc.) may be addressed or manipulated depending on the chosen dye and its placement.In some embodiments, blue dye may be added to layers such as color filters 112 and / or pixels or sub-pixels with layers to prevent secondary absorption between other light regions. The colorant improves display quality and light transmittance by reducing light losses (e.g., when green light enters the blue pixel and / or blue light enters the green pixel) and narrowing color space. Thus, dyes at wavelengths above 500 nm in blue pixels reduce light leakage to green and dyes around 491 nm in green pixels reduce light leakage to blue wavelengths of 575 nm. Likewise, dye may be added to the red pixels to prevent green light from entering the red light. Moreover, color control or restriction can reduce toxicity by increasing color gamut without loss of brightness.Dye(s) may be added at particular locations and in particular layers of the display stack. In one embodiment, a blue subpixel may be added with a blue light filtering dye (to filter out toxic blue light). Blue dyes filter light on the short wavelength side of the blue region, blue dyes filter light on the long wavelength side of the blue region, green dyes filter light on the short wavelength side of the green region, and green dyes filter light on the short wavelength side. All of these functions provide the possibility of expanding the color space and isolating color peaks. Thus, different dye options affect the resulting wavelength. Dyes can provide different results, e.g., short wavelength blue, long wavelength blue, short wavelength green, long wavelength green and short wavelength red.Figures 28-41 illustrate various examples of dyes that are directly incorporated into pixels and / or sub-pixels of a color filter (e.g., dyes that are molecular-based and not dissolved in and adjacent to the sub-pixel array (dye that is part of) the solution). In some embodiments, additional molecules may be added to the sub-pixels along with the dye to improve the performance of the final color filter. These performance improvements include optimal coating viscosity that allows for coating optimization and facilitates component compatibility, a more robust finish coating that is solvent and scratch resistant, and keep the dyes 426a-c, 428, 430, and / or 432 stable against heat and light exposure.FIG. 28 shows sub-pixel 418 of a color filter, each sub-pixel including a corresponding pigment to provide its color (i.e., red pigment 422 aconstitutes red sub-pixel 418 a; green pigment 422 bconstitutes green sub-pixel 418 b, blue pigment 422 cconstitutes blue sub-pixel 418 c), and, 400 nm to 430 nm, 410 nm to 430 nm, 415 nm to 435 nm, 415 nm to 455 nm, and 490 nm to 520 nm, and / or a primary dye 426 cthat can absorb light in a particular wavelength range in or near the blue wavelength range, for example, from 510 nm to 530 nm. In some cases, certain wavelengths, for example 450 nm, may be selectively used to remove pigments that have high transmittance and may negatively affect the color gamut. Thus, as shown in FIG. 28, the blue subpixel 418 cmay include a blue colorant 422 cthat imparts color to the subpixel and a primary colorant 426 cthat absorbs at least a portion of the spectrum of the blue light. Blue dye 422 cmay be suspended in the matrix of blue subpixel 418 c, while primary dye 426 cmay be dissolved in the matrix and become part of the matrix solution.Similarly, FIG. 29 shows sub-pixels 418 of a color filter, each sub-pixel containing a corresponding pigment to impart its color (as described above), and a green sub-pixel 418 bmay include a primary dye 426 bthat may absorb light in a particular wavelength range in or near the green wavelength range. Examples thereof include 445 nm to 455 nm, 470 nm to 495 nm, 470 nm to 500 nm, 490 nm to 570 nm, 520 nm to 550 nm, 590 nm to 640 nm and / or 600 nm to 640 nm. In some cases, certain wavelengths, for example 530 nm, may be selectively used to remove pigments that have high transmittance and may negatively impact the color gamut. Thus, as shown in FIG. 29, green subpixel 418 bmay include green dye 422 b, which provides color to the subpixel, and primary dye 426 b, which absorbs at least a portion of the spectrum of green light. Green pigment 422b may be suspended in the matrix of green subpixel 418b, while primary dye 426b may be dissolved in the matrix and become part of the matrix solution.Similarly, FIG. 30 shows sub-pixels 418 of a color filter, each sub-pixel including a respective pigment that imparts its color (as described above) and a red sub-pixel 418 aincluding 440 nm to 460 nm, 520 nm to 540 nm, 570 nm to 600 nm, 580 nm to It may include a primary dye 426 athat may absorb light in a particular wavelength range in or near the red wavelength range, for example 600 nm and / or 580 nm to 620 nm. Thus, as shown in FIG. 30, the red subpixel 418 amay include a red pigment 422 athat imparts color to the subpixel and a primary dye 426 athat absorbs at least a portion of the spectrum of the red light. The red pigment 422a may be suspended in the matrix of red sub-pixels 418a, while the primary dye 426a may be dissolved in the matrix and become part of the matrix solution.As shown in FIGS. 31-34, some embodiments of the disclosed color filters may include dyes in two or more of the corresponding subpixels. For example, as shown in FIG. 31, blue subpixel 418 cmay include primary dye 426 cand green subpixel 418 bmay include primary dye 426 b. In another example shown in FIG. 32, the blue subpixel 418 cmay include the primary colorant 426 cand the red subpixel 418 amay include the primary colorant 426 a. As shown in FIG. 33, green subpixel 418 bmay include primary colorant 426 band red subpixel 418 amay include primary colorant 426 a. In addition, as shown in FIG. 34, green subpixel 418 bmay include primary colorant 426 band red subpixel 418 amay include primary colorant 426 a. As shown in FIG. 34, all three sub-pixels 418a-c contain primary dyes, blue sub-pixel 418c contains primary dye 426c, green sub-pixel 418b contains primary dye 426b, and red sub-pixel 418a contains primary dye 426a. The absorption ranges of these primary dyes 426 a- care similar to the ranges described above, and depending on the absorption range selected, the primary dyes 426 a- cmay absorb harmful / toxic blue light (blue light from 415 nm to 435 nm), thereby reducing light transmittance and improving the color gamut of the resulting emission, reducing overlap of light leaks and color emissions (i.e., blue sub-pixels do not leave green or red light, green sub-pixels do not leave blue or red light, red sub-pixels do not leave blue or green light), etc.), separation is possible to eliminate color peaks and to emphasize primary colors. Specific examples of these improvements are discussed in greater detail below and further illustrated in the figures.In some embodiments, one or more of subpixels 418 a- cmay include corresponding primary dyes 426 a- cand additionally one or more of subpixels 418 a- cmay include secondary dyes. For example, as shown in FIG. 35, blue subpixel 418 cmay include a primary dye 426 cand a secondary dye 430, wherein dyes 426 cand 430 are both dissolved in the subpixel matrix and dissolved in solution to generate a portion of blue subpixel 418 c. The secondary dye 430 may be a dye that absorbs in a different wavelength range than the primary dye 426 cthat absorbs near or within the blue wavelength range. More specifically, the primary dye 426c absorbs in the short-wavelength blue region, for example, 400 nm to 430 nm, and the secondary dye 430 absorbs in the long-wavelength blue region, for example, 490 nm to 520 nm, which is useful for color correction or leakage reduction. Alternatively, the secondary dye 430 absorbs at a different color wavelength, e.g., green, to help reduce the leakage of non-blue light through the blue subpixel 418c. Thus, the secondary dye 430 serves to separate color peaks between blue, green and / or red peaks. Although the secondary dye 430 is sometimes mentioned in the singular herein, it is understood that one or more dyes constitute the secondary dye.In another example, as shown in FIG. 36, green subpixel 418 bincludes a primary colorant 426 band a secondary colorant 428, with both colorants 426 band 428 dissolved in the subpixel matrix to form green subpixel 418 b. It is part of the solution they produce. The secondary dye 428 may be a dye that absorbs in a different wavelength range than the primary dye 426 bthat absorbs near or within the green wavelength range. More specifically, primary dye 426b absorbs in the green short wavelength region, e.g., 470 nm to 500 nm, and secondary dye 428 absorbs in the long wavelength green wavelength region, e.g., 565 nm to 590 nm or 600 nm to 640 nm, for color correction, helps reduce leaks. Alternatively, the secondary dye 428 absorbs different color wavelengths, such as blue and red, to help reduce the leakage of non-green light through the green subpixel 418 b. Thus, the secondary dye 428 serves to separate the color peaks between the blue, green and / or red color peaks. Although the secondary dye 428 is sometimes referred to herein in the singular, it is understood that one or more dyes form the secondary dye.Moreover, as shown in FIG. 37, the red subpixel 418 aincludes a primary colorant 426 aand a secondary colorant 432, where both colorants 426 aand 432 are resolved in the subpixel matrix to generate the red subpixel 418 a. The secondary dye 432 may be a dye that absorbs in a different wavelength range than the primary dye 426 athat absorbs near or within the red wavelength range. More specifically, the primary dye 426 amay absorb in the short-wavelength red region, e.g., 570 nm to 600 nm, and the secondary dye 432 may absorb in the long-wavelength red region, e.g., 620 nm to 600 nm, to assist in color correction. Alternatively, the secondary dye 432 may absorb at different color wavelengths, for example blue and green, to help reduce the leakage of non-red light through the red subpixel 418 a. For example, many red filter inks transmit light in the wavelength range of 440 nm to 460 nm. By incorporating the secondary dye 432 into the subpixels, this wavelength range is blocked and the color emission of the display is sharper. Thus, the secondary dye 432 is useful for separating color peaks between blue, green and / or red color peaks. Although secondary dyes 432 are sometimes referred to herein in the singular, it is believed that one or more dyes are a secondary dye.While examples with secondary dyes 430, 428, 432 are shown herein in a color filter with all three primary dyes 426 a- c, secondary dyes may be present in a color filter regardless of whether primary dyes are present in the non-corresponding subpixels 418 a- c. For example, the secondary colorant 430 may be present in the blue subpixels 418 c, even if the red 418 aand / or green subpixels 418 bhave no corresponding primary colorants 426 aor 426 b. Similarly, the secondary colorant 428 may be present in the green subpixels 418 b, even if the red 418 aand / or blue subpixels 418 cdo not have corresponding primary colorants 426 aor 426 c, and the secondary colorant 432 may be present in the red subpixels 418 a, even if the green 418 band / or blue subpixels 418 cdo not have corresponding primary colorants 426 bor 426 c..Moreover, as shown in Figures 38-41, some embodiments of the disclosed color filters may include secondary dyes in two or more of the corresponding sub-pixels. For example, as shown in FIG. 38, the blue subpixel 418 cmay include the secondary colorant 430 and the green subpixel 418 bmay include the secondary colorant 428. In another example shown in FIG. 39, the blue subpixel 418 cmay include a secondary colorant 430 and the red subpixel 418 amay include a secondary colorant 432. As shown in FIG. 40, the green subpixel 418 bmay include a secondary colorant 428 and the red subpixel 418 amay include a secondary colorant 432. In addition, as shown in FIG. 41, three sub-pixels 418 a- care included such that the blue sub-pixel 418 cincludes the secondary dye 430, the green sub-pixel 418 bincludes the secondary dye 428, and the red sub-pixel 418 aincludes the secondary dye 432. They may be.In some embodiments, the dye added to the color filter subpixels is heat resistant / stable and may be exposed to high temperatures (e.g., 200-250° C.) over a prolonged period of time (e.g., 2-3 hours) The ability to absorb the designated wavelength range may also be maintained thereafter. The X and Y coordinates / values may be shifted a maximum of 1% along the X axis and a maximum of 1% along the Y axis. In some cases, the motion along one or both axes is 0.6% or less. For example, the movement of the blue subpixel along the Y axis is 0.2-0.3%. The displacement of the red subpixel along the Y axis is between 0.5 and 0.6%.As mentioned above, additional molecules may be added to the sub-pixels along with the dye to improve the performance of the final color filter. These molecules / additives are referred to herein as dye-enhancing compounds and include photoinitiators, initiator co-agents, monomers, stabilizers, co-initiators, etc.Photoinitiators include, but are not limited to, oxime compounds, ketones, triazine compounds, phosphine oxide compounds, biimidazole compounds, benzoin compounds, quinone compounds, thioxanthone compounds, triazine-based photoinitiators, and coumarin compounds.Examples of the polymerization initiation aid include, but are not limited to, amine compounds, alkoxyanthracene compounds, thioxanthone compounds, carboxylic acid compounds, amide compounds, triethylbenzylammonium chloride, imidazole compounds, triphenylphosphine, and triazine compounds.The monomers are unsaturated monocarboxylic acids and may include, but are not limited to, acrylic acid, methacrylic acid, crotonic acid, alpha-chloroacrylic acid, cinnamic acid, dicarboxylic diesters, bicyclo compounds, and the like. Unsaturated dicarboxylic acids may include, for example, maleic acid, fumaric acid, itaconic acid, citraconic acid, mesaconic acid and the like. The unsaturated polyvalent carboxylic acid may be an acid anhydride. Moreover, the unsaturated polyvalent carboxylic acid may be a monoester thereof. Moreover, the unsaturated polyvalent carboxylic acid may be a monoacrylate having polymeric dicarboxylic acid groups at both terminals. In some embodiments, other types of polyfunctional monomers include, but are not limited to, trimethylolpropane tri(meth)acrylate, ethoxylated trimethylolpropane tri(meth)acrylate, propoxylated trimethylolpropane tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, and dipentaerythritol One or more polyfunctional monomers include Erythritolpenta(meth)acrylat ethoxylated Dipentaerythritolhexa(meth)acrylat propoxylated Dipentaerythritolhexa(meth)acrylat and Dipentaerythritolhexa(meth)acrylat.Stabilizers include, but are not limited to, antioxidants such as hindered phenols, hindered amines, phosphorus antioxidants, sulfide antioxidants, or combinations thereof. In the disclosed sub-pixels, one or more primary antioxidants and / or one or more secondary antioxidants may be present. In some cases, the antioxidant may have within a molecule a phenolic antioxidant functionality and a phosphorus antioxidant functionality, or both a phenolic antioxidant functionality and a sulfur antioxidant functionality. It is expected that phenolic antioxidants may be used independently or in two or more types together. Similarly, aminic antioxidants may be used singly or in two or more types together. The negative effects of the addition of stabilizers can be counteracted by photoinitiators or co-initiators.In some embodiments, the dye itself may not be thermally stable, such that a dye enhancing compound may be added to the subpixels of the color filter to increase the thermal stability / stability of the dye. Dye-enhancing compounds can protect the dye, so that the ability of the dye is retained even when exposed to high temperatures (e.g., 200-250° C.) for a longer period of time (e.g., 2-3 hours), absorbing the intended wavelength range.In particular, many dyes are not heat resistant and can reduce their light absorption over time. For example, Figure 1 As shown in Figures 45 and 48, application of thermal stress for only 30 minutes can produce high absorption dyes that typically peak at about 435 nm (the absorption range is, for example, 40 nm). 0 nm to 450 nm, the half width is 50 nm or less, the peak absorption is 425 nm to 440 nm, and the transmittance in the peak absorption is only 35% to 45%. 20% to 40% higher (i.e., a dye which can have a transmittance from the apparatus of 35% to 40% near 435 nm when subjected to heat, and can have a transmittance of 75% to 40% when subjected to heat). Dyes which may have 80% transmission and 40% to 45% light transmission from the device under heat load have 60% to 65% transmission after heat load. 45 and 48 show less noticeable absorption of blue light after 180 minutes of heat exposure and the transmission curves are relatively flat over the visible light spectrum (i.e. the transmission varies by less than 5%). In some cases, these dyes may have secondary absorption peaks between 530 and 580 nm (half-width below 50 nm and peaks around 545 to 560 nm), which may also be negatively affected by thermal stress. With these dyes, the transmittance of the device before the heat load at these green absorption peaks is about 95%, and after 30 minutes of heat load, the transmittance is almost 97-99%, and after 180 minutes, the transmittance can reach 100% after thermal load.Therefore, as mentioned above, dye-enhancing compounds may be added to alleviate loss of dye absorption capacity. As shown in Figs. 46 and 49, the transmission and absorption properties of the dye remain relatively unchanged when comparing the transmission and absorption properties before and after the thermal test upon addition of dye-enhancing compounds. For example, as shown in Fig. 46, the transmittance of an apparatus containing complex dyes and dye-enhancing compounds in the color filter before heat load is 35-40% (half width <50 nm, peak absorption at 425-440) nm) (the absorption range is 400-450 nm) and remains at 35-40% after 30 minutes of heat load. After 180 minutes of exposure to heat, the transmission of devices containing complex dyes and color-enhancing compounds in the color filter falls to a minimum of 40-45%. Thus, the total blue transmittance of devices combining dyes and color enhancing compounds in color filters can vary within 10% between the original value and the value after heat exposure. As shown in Fig. 46, the transmittance in the green region of an apparatus combining dyes and dye-enhancing compounds in color filters is (absorbance of 530 to 580 nm, half width less than 50 nm, peak near 545 to 560 nm). It is 93-97% before exposure and remains 93-97% after 30 minutes and 180 minutes of heat exposure. As shown in the figure, the absorbance in the green region may not change at all.In another example, as shown in Fig. 49, the transmittance of an apparatus combining dyes and dye-enhancing compounds in color filters before heat load is 30-35% (the half width is less than 50 nm, the peak absorption is 425)-440 nm, absorption range 400-450 nm) and remains at 30-35% after 30 minutes of heat load. After 180 minutes of heat exposure, the transmission of devices combining dyes and color enhancing compounds in color filters increases to at least 35-40%. Therefore, the total transmission in the blue region of an apparatus combining dyes and color enhancing compounds in a color filter does not change more than 10% between the original value and the value after heat exposure. As shown in Fig. 49, green-range transmission of an apparatus combining dyes and dye-enhancing compounds in color filters (absorption of 530 to 580 nm, half width below 50 nm, peak near 545 to 560 nm) is 92-96% before heat stress and 92-96% after 30 minutes and 180 minutes of heat stress can remain. As shown in the figure, the absorbance in the green region may not change at all.To prevent loss of absorbance values, the amount of dye enhancing compound incorporated into the subpixel may be 2-5%. The inclusion of a color enhancing compound (e.g., 5%) increases the receptivity of the dye, but even small amounts of 2% may have a positive effect. For example, as shown in Figure 47, 2% of the dye of one embodiment in combination with a dye enhancing compound reduces the dye absorption capacity by about 10-15%, and 3% reduces the dye absorption capacity by less than 6%. 5% reduce the absorbency by less than 3%. As shown in Fig. 50, even 1% of another embodiment of the dye-enhancing compound reduces the dye absorption by about 4-7%. Similarly, 2% of the dye enhancing compound in combination with this embodiment of the dye may result in a loss of absorptivity of the dye of about 4-7%, and 5% may result in a loss of absorptivity of less than 3%. As shown in Figures 47 and 50, in the absence of a dye enhancing compound, the dye may lose its entire absorbance after 100 to 150 minutes (e.g., after 125 minutes).Figs. 45 to 50 show the absorption efficiency of dyes in combination with color enhancing compounds even after heat exposure, while Figs. 52 and 54 show the absorption efficiency of dyes in combination with color enhancing compounds when added to color filter inks. Specifically, as shown in FIG. 51, the light transmittance through the blue color filter ink is minimally affected even after thermal stress. However, blue filter ink has a high transmittance for blue wavelengths between 400 and 500 nm. Thus, as further described herein, a blue dye may be added to the blue subpixel of a color filter to absorb harmful blue wavelengths. As shown in Figure 52, the addition of blue dyes and dye enhancing compounds to the subpixel blue color filter ink significantly increases the absorption of blue wavelengths from 410 nm to 460 nm. In addition, the absorption properties of the dyes are only minimally impaired even after exposure to heat, so that a similar absorption remains in the range of 410-460 nm (e.g. within 5%).Also, as shown in Fig. 53, the light transmittance through the red color filter ink in the blue wavelength region after heat exposure is minimal. As further illustrated in FIG. 53, in the wavelength range of 380-460 nm, some blue light still has to pass through the red color filter ink. Therefore, as further described herein, a blue dye is added to the red subpixels of the color filter to absorb blue wavelengths and reduce the loss of blue wavelengths to the red subpixels, thereby reducing the amount of color emitted by the display. They may increase clarity. Therefore, it is desirable that the red subpixel absorb lower spectral wavelengths. As shown in FIG. 54, the absorption of the blue wavelengths increases from 400 nm to 470 nm when blue dyes and dye enhancing compounds are added to the color filter ink of the red subpixel while only little light of 420 nm to 470 nm is transmitted (e.g., less than 2) %). Moreover, the absorption properties of the dyes are only minimally impaired after exposure to heat, so that similar absorption remains in the range of 420-470 nm (e.g. within 1%).Moreover, the light transmitted from the display when including the disclosed color filter with dyes 426 a- c, secondary dyes 430, 428, 432, and / or dye enhancement compounds 434 a- cmay minimally change position on a color scale such that the X and Y coordinates / values may only move up to 0.75% along the X axis and up to 0.75% along the Y axis. In some cases, the movement along one or both axes is not more than 0.6%.For example, one embodiment of a blue subpixel 418 cwith blue ink 422 cincludes a dye enhancing compound 434 ctogether with a dye 426 cand / or a secondary dye 430 such that the subpixel is aligned along the Y-axis of the color gamut diagram after heating. Moreover, ΔE ab is between 2 and 3 (e.g., 2.2 and 2.4, more specifically, 2.3). In one embodiment, the dye and dye enhancing compound limit movement in the color gamut diagram such that Δx is 0.0002, Δy is 0.0030, ΔY.% is 0.219%, and ΔE is ab2,2986.An embodiment of a red subpixel 418 awith red ink 422 aincludes a dye enhancing compound 434 atogether with a dye 426 aand / or a secondary dye 432 such that the subpixel is free of movements along the Y axis of the color gamut diagram after the heat treatment such that the transmitted light does not move more than 0.3 to 0.8% (e.g., 0.45 to 0.55%) along the Y axis. In addition, the ΔE ab- value may be between 0.5 and 1.5 (e.g., between 0.75 and 0.95, or more specifically 0.9). In one embodiment, the dye and dye enhancing compound limit motion in the color space diagram such that Δx is -0.0020, Δy is 0.0008, ΔY.% is 0.504%, and ΔE is ab0,8637.Figures 55-56 show examples of transmission measurements in which the effect of the dye on absorption is decoupled from the presence of color filter ink and dye enhancing compounds. Therefore, Figs. 55-56 show that the dye, after being combined with the color enhancing compound and the color filter ink and subjected to heat stress, works with negligible changes as expected. In particular, the ability of the dye in the blue color filter ink to absorb light between 400 nm and 460 nm remains largely unchanged (e.g., less than 5% at the peak absorption wavelength) before and after the thermal test. Likewise, the ability of the dye in the red color filter ink to absorb light between 400 nm and 460 nm remains substantially unchanged (e.g., less than 10% at the peak absorption wavelength) before and after the thermal test.These dye-enhancing compounds may be present in any subpixel containing a light absorbing dye. For example, as shown in FIG. 42, each of the red, green, and blue subpixels 418 a- cdisplays pigments 422 a- c, absorbing dyes 426 a- c, and dye enhancing compounds 434 a- c, respectively. It should be noted that although the dye-enhancing compounds 434a-c are shown as single compounds in the figure, they may be one or more compounds.Figures 43a-c show subpixel color sets (blue subpixel 418c in Figure 43a, green subpixel 418b in Figure 43b, and red subpixel 418a in Figure 43c).) having a corresponding absorbing dye 426a-c, and thus the dye-enhancing compound 434a-c of its corresponding subpixel color set is the only dye-enhancing compound (or 2 shows an example of an embodiment in which a combination of compounds is used). In embodiments where more than one dye is included in a blue, green, or red subpixel, as shown in Figures 44a-c, dye enhancing compounds (or combinations of compounds) 434a-c may also be included. The example shown in Figures 43a-c illustrates an exemplary embodiment having only absorbent dyes 426a-c with corresponding absorbent dyes 426a-c. Although Figures 43-44 illustrate only embodiments with a subpixel having a dye and a dye enhancing compound, some embodiments of the disclosed color filters have multiple subpixel color sets with dyes, in which case the dye enhancing compound may be present as one or more subpixel color sets in which the dye is located. More specifically, the embodiments shown in Figs. 43a-c and 44a-c, and Figs. 28-30 and 35-37 may be used "in combination" with each other.For example, embodiments shown in FIGS. 44 aand 44 bmay include dyes and compounds, wherein one or more dyes 426 b- c, 430, 428 are included in the blue subpixel 418 cand the green subpixel 418 band a corresponding dye enhancing compound 434 c, bare included in one or both of the green subpixels, wherein the dye enhancing compound may consist of one or more different types of dye enhancing compounds. Similarly, in embodiments with dyes 426 c, a, 430, 432 in blue subpixel 418 cand red subpixel 418 a(or dyes 426 b, a, 428, 432 in green subpixel 418 band red subpixel 418 a), blue dye-enhancing compound 434 ais used, c in one or both subpixels and red subpixels (or one or both of the green and red subpixels may be provided with a dye-enhancing compound 434 b,a, wherein the dye-enhancing compound may consist of one or more different types of dye-enhancing compounds. This effectively becomes a combination of Figures 44a and 44c (with colorant 426c, a and compound 434c, a in blue subpixel 418c and red subpixel 418a) and 44c. Compare 44 band 44 c(green subpixel 418 band red subpixel 418 ahave colorant 426 b, aand compound 434 b, a). In another example, an embodiment of a color filter includes a single colorant 426 cand a colorant enhancing compound 434 c(FIG. 43 a) in the blue subpixel 418 cand two colorants 426 b, 428 in the green subpixel 418 b(FIG. 36 ).Other combinations of all Figs. 28-30, 35-37, 43a-c and 44a-c are conceivable for the disclosed color filter. Thus, the embodiment of FIG. 28 may be combined with each of the embodiments in FIGS. 29-30, 36-37, 43b-c, and 44b-c; the embodiment of FIG. 29 may be combined with each of the embodiments in FIGS. 28, 30, 35, 37, 43a, 43c, 44a, and 44a; the embodiment of FIG. 30 may be combined with each of the embodiments in FIGS. 28-29, 35-36, 43a-b, and 44a-b; the embodiment of FIG. 35 may be combined with each of the embodiments in FIGS. 29-30, 36-37, 43b-c, and 44b-c; The embodiment of FIG. 36 may be combined with each of the embodiments in FIGS. 28, 30, 35, 37, 43 a, 43 c, 44 aand 44 a; the embodiment of FIG. 37 may be combined with each of the embodiments in FIGS. 28-29, 35-36, 43 a-b and 44 a-b; the embodiment of FIG. 43 amay be combined with each of the embodiments in FIGS. 29-30, 36-37, 43 b-c and 44 b-c; the embodiment of FIG. 43 bmay be combined with each of the embodiments in FIGS. 28, 30, 35, 37, 43 a, 43 c, 44 aand 44 a; The embodiment of Figure 43c may be combined with each of the embodiments in Figures 28-29, 35-36, 43a-b and 44a-b; the embodiment of Figure 44a may be combined with each of the embodiments in Figures 29-30, 36-37, 43b-c and 44b-c; the embodiment of Figure 44b may be combined with each of the embodiments in Figures 28, 30, 35, 37, 43a, 43c, 44a and 44a; and the embodiment of Figure 44c may be combined with each of the embodiments in Figures 28-29, 35-36, 43a-b and 44a-b.In some embodiments, a second polarization layer (or multiple) 114 may be present. The polarization layer 114 transmits light of a certain polarization received after the color filter and blocks light waves of other polarizations. In other words, the polarizing layer reduces glare and helps form the image viewed by the user of the computing device. In some embodiments, a glass layer or cover 116 may be located adjacent or adjacent to the polarization layer. This layer not only protects the display layer, but also controls glare and light transmittance. In some embodiments, a multi-stack display configuration not only improves display color, but also reduces glare. Different layers control the transmission and emission of light when the emitted light penetrates different stacked layers. Therefore, changing the color filter 112 reduces toxic blue light and improves the color quality of the display, thereby improving the user experience and health.In other embodiments, the light emitting diode array (not shown) may be arranged in a strip as a light source and arranged such that the light may enter the backlight unit 102 through an edge of the light guide plates. Alternatively, a light emitting diode arrangement can be arranged below the light guide plate. The light guide plate may be provided on one or more sides with a reflector (not shown) for guiding the light from the light emitting diode array upward and through the backlight unit 102. The light guide plate may be disposed between the reflector and the diffuser. The effect of this type of construction deflects the light from the light source at the edge of a screen so that it propagates uniformly over the screen surface.In embodiments where a diffuser is present (not shown), the diffuser can evenly distribute the light and eliminate bright spots. Examples of the diffusion plate are holographic white diffusion glass and milk glass. The diffuser plate may be translucent and reflect light in various directions. A brightness enhancing layer (not shown) may be present and may be a prismatic brightness enhancing film. Adjacent to the backlight unit 102 (the top part of which may be a first or second brightness enhancement layer) is a first polarization filter that transmits light of a certain polarization and blocks light waves of other polarizations (possibly also a polarization filter 114) present in the display stack). In some embodiments, polarization filters may help reduce reflections and glare by filtering polarized light due to reflection from nonmetallic surfaces. The purpose of the backlight unit 102 is to uniformly spread the light over the two-dimensional plane of the light guide plate and provide light for displaying images on the display.As mentioned above, the diagram of FIG. 1 is an exploded schematic diagram of an embodiment of an example of a display system 100 with which display systems of the present disclosure may be advantageously employed. The display system 100 may be used in, for example, a liquid crystal display (LCD), an LCD television, a handheld device, a tablet, a laptop, a headset, a VR / XR / AR display device, or another computing device. However, the display system 100 of FIG. 1 is merely exemplary, and the systems of the present disclosure are not limited to use with systems such as or similar to the system 100. The systems of the present disclosure may be advantageously used in other types of display systems that do not necessarily include liquid crystal display technology.In this disclosure, several examples of dyes (see Table 1) that absorb in the blue, red, and green regions may be used to modify the color filter 112. The modification of the blue, red and green emission can be a more precise way to filter toxic blue light while ensuring minimal loss of luminance and improvement of the resulting color gamut.As further described herein, blue, green, and red dyes may be applied at the level of the color filter or backlight unit (BLU). When applied to a color filter, the dye is confined to the corresponding subpixel. More specifically, the color filter is composed of blue, green and red sub-pixels, and the dye can be applied accordingly. Thus, blue dye may be coated on blue sub-pixels, green dye may be coated on green sub-pixels, and red dye may be coated on red sub-pixels. There are many possible combinations of applications. For example, blue and green dyes are applied to respective sub-pixels, blue and red dyes are applied to respective sub-pixels, green and red dyes are applied to respective sub-pixels, or all three dyes are applied to respective sub-pixels. The application of dyes to sub-pixels and combinations of the above may help reduce the toxic blue light emitted from display devices and also help improve brightness and color space. Table 1: Dyes and their associated maximum absorption wavelengths (nm) Table 1: Dyes and their associated maximum absorption wavelengths (nm)1252HE427, 5512250ES431, 5533ABS526N422, 5264P4914915185HE5846181HE594As shown in Table 2, the application of selective dyes and / or dye formulations to the color filter or backlight unit of the disclosed display panels improves spectral emission, brightness, blue toxicity ratio, blue phototoxicity coefficient, and Adobe RGB data associated with coverage of standard color space systems such as DCI-P3, sRGB, BT.2020, and NTSC. Table 2 shows an embodiment of a measured display monitor type. Various types of monitors are available and the measurement values vary depending on the measurement of the display illumination. In a first example, the chosen dye absorbs in the toxic blue region, with the maximum absorption being 430 nm (see Table 2; the absorption peak is between 420 and 435), but a second absorption peak in the colour region of 2 (for example green or red) (see Table 2; the second peak is between 525 and 560) It may also indicate this. In some cases, a single dye may be applied to a color filter or backlight unit, while in other cases, two or more dyes may be combined and applied to increase the absorption of toxic blue light and decrease the blue light toxicity ratio together in a color filter or backlight unit. By applying these dyes to color filters, the blue phototoxicity coefficient can be reduced by up to about 20%, which is an improvement over making the same changes within the backlight unit.As shown in Table 2, a modification at the color filter ("CF") level results in a more marked reduction in blue light toxicity than a modification at the backlight unit (BLU) level. Moreover, the loss of brightness of the display is less pronounced for modified color filters than for modified BLU, and overall, the changes introduced by the dye improve the color gamut as the measurements for each standard color space system in Table 2 demonstrate. More specifically, when the disclosed dyes are applied to a color filter, the percent coverage of the color gamut generally increases (i.e., has a positive rate of change).In some embodiments, it has been found that light converting materials (filters) placed at different locations within the backlight unit enhance absorption by up to 10-12 times, which allows for example the efficiency of selective light converting or light absorbing materials filter light or toxic blue light is greatly increased.The graph in Fig. 2 shows the transmission spectrum of a color filter with blue dye modification. In Fig. 2, the blue spectrum before the dye modification is represented by the points having "X" therein, and the solid black curve represents the blue spectrum of the color filter having blue dye modification. The graph shows that the modification of the blue dye reduces the wave height (representing transmittance) and absorbs toxic blue light as seen at wavelengths of 430 nm. The effectiveness of the series of dyes will vary depending upon the type of display, amount of dye and combination of dyes (if present). In the embodiment of FIG. 2, the blue subpixel is transparent in the range of 350-530 nm and multiple peaks may be present in this range. The green subpixel is transparent in the range 460-630 nm and there may be multiple peaks in this range. The red subpixel is transparent above 570 nm and there may be multiple peaks in this region. This offers the possibility of enhancing the effect of selective light conversion or light absorption materials which block blue or toxic blue light, or other films or layers which can alter the spectrum. These selective light converting or light absorbing materials may be included as separate films or applied or added to each of the layers making up the disclosed backlight unit.FIG. 2 shows three effective transmission curves for three different subpixels of a color filter. In FIG. 2, a curve is the absorption curve of a blue dye added to the blue subpixel of the color filter in FIG. 1. The second absorption curve is a measure of the transmittance of the green subpixel of the same color filter. The third absorption curve is the transmission of the red subpixel of the same color filter. All three curves have adjacent peaks indicating the light absorption of the backlight unit for all three sub-pixels, but with different ranges with respect to the wavelength of light of a certain color.As shown in FIG. 2, in some embodiments, adding blue dye to the color filter may alter the aspect of the transmission spectrum of the display. More specifically, FIG. 2 shows that when an added blue dye is applied to a color filter (e.g., at the blue subpixel level), light is emitted in the toxic blue region of about 430 nm (+ / -30 nm). This indicates that there is a possibility of reduction. The transmission diagram may represent the overall effect of a color filter on light with and without blue dye. The blue dye curve from 428 to 500 nm shows that the effect of blue light on the beam density without blue dye may be less than the shape of the original curve. In particular, when the dye is changed at the color filter level (line labeled "Blue & Dyes"), the resulting blue peak emission (from the measured white light emission of the display after the dye change) is less than the original blue peak emission of the display (from the measured white light emission of the display before the dye change) is narrower than the measured white light emission of the display (line labeled "Blue"), and may shift toward longer blue wavelengths.Fig. 3 also shows the light spectrum and measurements (spectral power distribution (SPD)) when blue dye is added to the color filter. The light of the display can be measured with a radiometer and the intensity measurements are displayed on the Y axis. In FIG. 3, the wavelength of the light coming from the display is shown on the x-axis. In some cases, the type of display may affect the resulting X and Y axis values. When a blue dye is applied to the plane of the color filter, a blue light peak between 380 and 500 nm, a green light peak between 500 and 600 nm, a red light peak between 600 and 660 nm, and combinations thereof may occur. The graph in Figure 3 shows one embodiment of the unique spectrum when blue dye is added to the color filter of a display system.FIG. 3 shows the spectral power distribution (SPD) of a display with blue dye modification on the color filter. More specifically, FIG. 3 shows the effective transmission of a light converting or light absorbing material (a blue light filter layer) over the entire visible spectrum when the light converting or light absorbing material is inside a display (in this case, a color filter) depending on where it is. The effective transmission is calculated by dividing the radiation of a display with light converting or light absorbing material by the radiation of a display without light converting or light absorbing material. The different spectra shown in Figure 3 illustrate the effect of light converting or light absorbing material layers when placed at different locations within the display (outside and inside the colour filter). Figure 3 contains the amplitude associated with absorption on the X axis and the wavelength values on the Y axis.FIG. 4 shows the SPD of a display with blue dye modification at the BLU level. More specifically, FIG. 4 shows the effective transmission of a light converting or light absorbing material (blue light filter layer) over the entire visible spectrum compared to the light converting or light absorbing material in the display (shown as a function in this case) of the placement location. The light of the display can be measured with a radiometer. Absorption measurements can be recorded on the Y axis. In Fig. 4, the wavelength of the light of the display is plotted on the x-axis. In some cases, the display type may affect the resulting X and Y axis values. When blue dye is coated at the BLU level, there is a blue light peak between 430 and 470 nm, a green light peak between 490 and 580 nm, a red light peak between 600 and 660 nm, and combinations thereof may occur. The graph in Figure 4 shows the transmission of blue light or absorbing materials. Figure 4 shows an embodiment of a unique spectrum in which a blue dye is added to the BLU of a display system.In some embodiments, the dye applied on the plane of the color filter (or in some cases the backlight unit) has at least two absorption peaks, a main absorption peak in the blue light region and a sub-absorption peak that may exceed 500 nm. Since this secondary absorption peak exceeds 500 nm, the leakage of green light (i.e., longer wavelength light) into the blue subpixel is reduced, thereby narrowing the blue emission spectrum and increasing the Y-axis coordinate / value of blue in the color space to a lower value. Harmful blue light from the main peak is filtered, the coordinate / value of the Y axis increases, the blue emission peak becomes narrower, saturation increases, and the coordinate / value of the blue X axis favorably shifts to the left. Other pigments or other absorbers at wavelengths above 495 nm (+ / -15 nm) can be used to reduce the leakage of longer wavelength light into the blue subpixel.As mentioned above (as shown in Table 2), the addition of a second dye to the first dye in either the color filter or the BLU results in a decrease in the blue phototoxicity coefficient and a difference in brightness loss, and may result in a more dramatic difference in color space coverage. Therefore, they can see that the overall performance of the display is improved by changing the color filter.In another embodiment (see Table 3 below), the color filter and / or BLU may be modified with a dye that absorbs in the green range between 490 nm and 610 nm. A change in the green range does not have a significant influence on the blue emission, but changes may affect the brightness and color space. Table 3 is an embodiment of the values measured for a display type. The measured values vary depending on the monitor type. In some embodiments, a green dye that absorbs less than 500 nm is used. In other embodiments, a green dye is used that absorbs light above 575 nm. The use of a dye in the green filter that absorbs less than 500 nm reduces the leakage of short wavelength light to the green subpixel, while the use of a dye in the green filter that absorbs light above 575 nm reduces the leakage of short wavelength light to the green subpixel from long wavelength light is reduced.When short wavelength light enters the green subpixel, it can de-saturate the green primary color and cause the coordinates / values of the Y axis to move negatively. Also, depending on the target color space value, the coordinates / values of the X-axis may move unfavourably. Alternatively or in addition to the dye, they may use other pigments or other absorbers with wavelengths below 500 nm to reduce the leakage of short wavelength light to the green subpixel and to increase the saturation of the green subpixel.Similar to short wavelength light, long wavelength light entering the green subpixel may de-saturate the green primary color and shift the value or coordinate of the Y axis in a negative direction. In addition, depending on the target gamut value, the coordinates / values of the X-axis may shift inconveniently. Instead of or in addition to the dye, other pigments or other absorbers with wavelengths above 590 nm may be used to reduce the leakage of long wavelength light to the green subpixel.The graph in Fig. 5 shows the transmission spectrum of a color filter with green dye modification. In Fig. 5, the green spectrum before the dye modification is represented by the "reticle" points, and the curve of the white points represents the green spectrum of the color filter with green dye modification. The graph shows that the green dye modification reduces wave height. The modification range of green dyes may be in the range 470-620 nm. The effectiveness of the dye areas varies depending on the type of display, amount of dye and combination of dyes (if present). In the embodiment of FIG. 5, the blue subpixel is transparent in the range of 350-530 nm and multiple peaks may be present in this range. The green subpixel is transparent in the range 460-630 nm and multiple peaks may be present in this range. The red subpixel is transparent above 570 nm and there may be multiple peaks in this region. This offers the possibility of enhancing the effect of selective light conversion or light absorption materials. For example, subpixel loss can be reduced and brightness and color space can be improved. These selective light converting or light absorbing materials may be contained as a separate film or applied or added to each of the layers making up the disclosed backlight unit.In some embodiments, adding green dye to the color filter may alter aspects of the transmission spectrum of the display, as shown in FIG. 5. More specifically, FIG. 5 shows that when an additional green dye is applied to a color filter (e.g., on the green subpixel plane), the emitted light is in the green range of 510 nm to 580 nm (+ / -30 nm). This indicates that there is a possibility of reduction. A transmission diagram may represent the overall effect of a color filter on light with and without green dye.Figure 6 shows the SPD of a green dye display added to the colour filter. The light of the display can be measured with a radiometer and, as mentioned above, the intensity measurements are displayed on the Y axis. In FIG. 6, the wavelength of the light from the display is displayed on the x-axis as described above. The graph shows that the model spectrum is similar to the measured light values. The central peak is in the range 510-560 nm. At about 540 nm there is a slight drop or absorption and the spectral model is somewhat less than the actual measurement (more absorption). Likewise, the spectral model is somewhat less frequent in the range 580-605 nm. When the green dye is coated on the plane of the color filter, a blue light peak between 430 and 470 nm, a green light peak between 490 and 580 nm, and a red light peak between 600 and 660 nm are formed, and a combination thereof may occur. The graph in FIG. 6 shows that the model spectrum resembles the measured light values. FIG. 6 shows an embodiment of a unique spectrum in which a green dye is added to the color filter of a display system.FIG. 7 shows the SPD of a display with green dye correction at the BLU level. Similar to FIG. 6, FIG. 7 shows a graphical representation of the predicted measured values after modeling the actual and measured light. More specifically, FIG. 7 shows the effective transmission over the visible spectrum of a light converting or light absorbing material (green light filter layer) when the light converting or light absorbing material is in a display (in this case a BLU) depending on where it is. The light of the display can be measured with a radiometer. Absorption measurements can be recorded on the Y axis. In Fig. 7, the wavelength of the light of the display is plotted on the x-axis. In some cases, the display type may affect the resulting X and Y axis values. When green dye is coated at the BLU level, the blue light peak is between 420 and 470 nm, the green light peak is between 490 and 590 nm, and the red light peak is between 600 and 660 nm. However, combinations thereof may also exist. The graph in FIG. 7 shows an embodiment of a unique spectrum in which a green dye is added to the BLU of a display system.In another embodiment (see Table 4 below), the color filter and / or BLU may be modified by dyes that absorb in the red region below 590 nm. By modifying the red region at the level of the color filter, the penetration of short-wave light into the red subpixel can be reduced. This leakage reduces the saturation of the red primary color. Therefore, the use of red dye for the red subpixel also helps manage the XY coordinates (axes) for optimal color space coverage. Table 4 shows how various measurements such as brightness and color space change when red dye is added to a display type. There are various types of monitors which display different values during measurement. The values listed indicate the result of adding red dye to the red subpixel in terms of its effect on toxicity-blue ratio, toxicity coefficient, brightness, and color space changes. Similar to the green subpixel, short wavelength light entering the red subpixel may de-saturate the red primary color and cause the coordinate / value of the Y axis to move negatively. In addition, depending on the target color space values, the coordinates / values of the X-axis may shift inconveniently. Instead of or in addition to the dye, other pigments or other absorbers with wavelengths below 600 nm may be used to reduce the leakage of short wavelength light into the red subpixel and to improve the saturation of the red subpixel.The graph in Fig. 8 shows the transmission spectrum of a color filter with red dye modification. The graph shows a non-limiting embodiment in which a red dye, a blue dye, and a green dye are added to the color filter. In FIG. 8, the red spectrum before the dye modification is represented as a curve consisting of dots having a "right diagonal", and the curve consisting of dots having a left diagonal is represented by a color filter having a red dye modification (or more specifically, represents the red spectrum of the red subpixel). Modification of the color filter with red dye suggests that red light is absorbed at wavelengths above 580 nm.In some embodiments, the added colorant may affect the graph by narrowing and decreasing the intersection of green and red. Separation between colors can be improved and color space can be improved. The modification range of the red dye may be in the range of 560-750 nm. The effectiveness of the dye areas varies depending on the type of display, amount of dye and combination of dyes (if present). In the embodiment of FIG. 8, the blue subpixel is transparent in the range 380-530 nm and there may be one or more peaks in this range. The green subpixel is transparent in the range 460-630 nm and may have one or more peaks in this range. The red subpixel is transparent above 560 nm and may have one or more peaks in this region. This may provide the possibility of enhancing the impact of selective light conversion or light absorption materials. For example, the loss of subpixels may be reduced and brightness and color space may be improved. These selective light converting or light absorbing materials may be included as separate films or applied or added to each of the layers making up the disclosed backlight unit.In some embodiments, adding red dye to the color filter may shift aspects of the transmission spectrum of the display, as shown in FIG. 8. More specifically, FIG. 8 shows that applying a red dye to a color filter (e.g., at the level of the red subpixel) may result in a shift in emitted light in the red region. More specifically, the bottom of the red region with no red dye begins between 560 nm and 570 nm, whereas the bottom of the red region begins with red dye between 570 nm and 580 nm (+ / - 30 nm). The transmission diagram may represent the overall effect of the color filter on light with and without red dye.Fig. 9 shows the SPD of the display when red dye is added to the color filter. The light of the display can be measured with a radiometer and, as mentioned above, the intensity measurements are displayed on the Y axis. In FIG. 9, the wavelength of the light of the display is shown on the x-axis, as described above. The graph shows that the model spectrum is similar to the measured light values. Modifications by the red dye begin at about 580 nm. The graph shows an embodiment of the original color filter and the values after modification of the color filter with red dye. As a result, several peaks may occur at the red dye values. For example, they could have a first peak between 600 nm and 620 nm and a second peak between 625 nm and 645 nm. In the embodiment of Fig. 9, the absorption range appears to decrease at 670 nm. When the red dye is applied to the plane of the color filter, the blue light reaches its peak between 420 and 475 nm, the green light reaches its peak between 490 and 580 nm, the red light reaches its peak between 600 and 620 nm, 625 alternative or additional red light There may be peaks between ~645 nm and combinations thereof. The graph in Figure 9 shows an embodiment of a unique spectrum in which a red dye is added to the color filter of the display system.Figure 10 shows the SPD of a red dye absorption display at the BLU level. Similar to FIG. 9, FIG. 10 shows a graphical representation of the predicted measured values after modeling the actual and measured light. More specifically, Fig. 10 shows the effective transmission over the visible spectrum of a light converting or light absorbing material (red light filter layer) when the light converting or light absorbing material is in a display (in this case a BLU) depending on where it is. The light of the display can be measured with a radiometer. Absorption measurements can be recorded on the Y axis. In Fig. 10, the wavelength of the light of the display is plotted on the x-axis. In some cases, the display type may affect the resulting X and Y axis values. When red dye is applied at the BLU level, the blue light reaches its peak at about 430-470 nm, the green light reaches its peak between 490-580 nm, the red light reaches its peak between 600-620 nm, and the red light reaches its peak may occur therebetween, and in combinations thereof. Some regions have multiple peaks within the region. Some embodiments also have reduced transmission or absorption, for example a change in the green range from 515 to 580 nm or a change in the red range from 580 to 620 nm. The graph in FIG. 10 shows an embodiment of a unique spectrum in which a red dye is added to the BLU of a display system.In another embodiment (see Table 5 below), dye combinations may be used to modify the color filter, backlight unit, or both simultaneously. Measurements of the blue light toxicity coefficient, brightness and color space coverage show that changing the blue absorbing dye at the color filter (e.g., blue sub-pixel) level is advantageous in reducing the toxicity coefficient. This also results in less loss of brightness as compared to pure BLU changes or both color filter and BLU changes. Various dye combinations may also be used to adjust the final color performance of the display. For example, it may reduce the loss of short and long wavelength light in subpixels. Table 5 shows how various measurements, including but not limited to brightness and color gamut, change when multiple dyes are added to the color filter and / or BLU for a display type. There are various kinds of monitors which measure different values. Table 6: Dye absorption peaks (nm) in connection with Table 5Table 6: Dye absorption peaks (nm) in connection with Table 5250ES + ABS526N (181HE)2, 3, 6431, 553 + 422,526 (595)250ES + ABS526N (181HE)2, 3, 6431, 553 + 422,526 (595)250ES + ABS526N (181HE)2, 3, 6431, 553 + 422,526 (595)252HE (181HE)1,6427, 551 (595)252HE (181HE)1,6427, 551 (595)252HE (181HE)1, 6427, 551 (595)250ES (181HE)2, 6431, 553 (595)250ES (181HE)2, 6431, 553 (595)250ES (181HE)2, 6431, 553 (595)In some cases, there are several dye absorption peaks (nm) depending on the dye used. Overall, dye changes at the BLU level affect all primary colors and can affect green light and less blue light, thereby reducing brightness. This potential reduction in luminescence closely correlates with the photopic sensitivity curve, resulting in a more severe reduction in luminance. However, since color changes at the level of the color filter may only affect one primary color at a time, it may be possible to better optimize the color emission of each primary color and adjust the SPD of the resulting display. Table 6 shows some values for the dye modification in both the blue and green regions in color filters and backlight units using different dye combinations.Figure 11 may show the transmission spectra of a color filter after modification of the blue and green dyes. The graph shows the effect of dye changes on the color filter on overall brightness. In FIG. 11, the data points relating to the transmittance curves of the blue, green and red subpixels before the colorant is added are indicated by an "x", a "reticle" and a "right bar", respectively. Dye-modified color filter peaks can occur at display measurements at about 440-490 nm, 500-580 nm, and 600-680 nm (+ / - 30 nm). Color filter peaks prior to dye modification can occur with display measurements at about 400-480 nm, 500-590 nm, and 600-680 nm (+ / - 30 nm). In some embodiments, added dyes may affect the graphics by narrowing and reducing the transitions from blue to green and green to red. Therefore, separation between subpixel transmittances is improved, reducing subpixel loss and potentially improving brightness and color gamut. The effectiveness of the dye area depends on the type of display and the amount of dye, as well as the combination of dyes (if present). The selective light conversion or light absorption material may be contained as a separate film or applied or added to each of the layers making up the disclosed backlight unit.Fig. 12 shows the SPD of the display when both blue and green dyes are added to the color filter. The light of the display can be measured with a radiometer and the intensity measurements are displayed on the Y axis as described above. In FIG. 12, the wavelength of the light of the display is displayed on the x-axis as described above. The graph shows an embodiment of the original color filter and the resulting values after modification of the color filter with blue and green dyes. Dye modification (i.e., addition of blue and green dyes to the color filter) results in a blue light absorption peak between 430 nm and 470 nm, a green light absorption peak between 484 nm and 588 nm, and a green light absorption peak between 600 nm. A red light absorption peak between 620 nm, an alternative or additional red light absorption peak between 625 nm and 645 nm, and combinations thereof may occur. The solid line shows the measured modified color filter absorption value.Figure 13 shows the SPD of a blue and green dye absorption display at the BLU level. Similar to FIG. 12, FIG. 13 shows a graphical representation of the predicted measured values after modeling the actual and measured light. More specifically, Figure 13 shows the effective transmission of a light converting or light absorbing material over the visible spectrum as a function of the position of the light converting or light absorbing material within the display (in this case, the BLU shows the rate). The light of the display can be measured with a radiometer. Absorption measurements can be recorded on the Y axis. In Fig. 13, the wavelength of the light of the display is plotted on the x-axis. In some cases, the display type may affect the resulting X and Y axis values. After both blue and green dyes are added to this color filter, the difference between the measured value and the actual value increases. When blue and green dyes are applied at the BLU level, the absorption peak for blue light is about 450 (+ / - 15 nm) and the peak for green light is about 500-510 nm and 540-560 nm (+ / - 15). nm), and combinations thereof may exist. As shown, some regions have multiple peaks within the region. The graph in Figure 13 shows an embodiment of a unique spectrum in which blue and green dyes are added to the BLU of a display system.The embodiments may further show that display systems may reduce the toxicity of blue light and simultaneously increase brightness and extend or shift color space. The examples described hitherto here show primarily that the inclusion of specific dyes in colour filters represents an improvement over the inclusion in layers within the backlighting unit. The comparison resulted in some improvement in color space over the original display performance and the primary comparison was made with the dye in the backlight unit. The resin here can be thermally or photolithographically cured, but most colour filter materials are photolithographically cured (due to the very small dimensions of modern displays).Figures 14-25 show brightness, toxic blue light and color scale data for various color filter modifications. A common method for manufacturers to increase the transmittance or brightness of color filters is to reduce the coating thickness to shorten the optical path and to reduce absorption with less dye coverage per square area. The plots shown here illustrate how the transmittance / brightness of a corresponding color filter ("CF") can be increased for different wavelengths associated with a particular color, where different representative lines mathematically simulate a thin coating. In some cases, color performance can be maintained and even improved by reducing the thickness of the color filter to improve brightness and simultaneously adding dyes or pigments at the level of the color filter. The spectra of blue, green and red dyes and pigments are plotted in separate (separate) plots when added to a color filter. In these individual diagrams (see, e.g., FIGS. 15 a- c, 19 a- c, and 23 a- c), the transfer peak may increase as the overall width decreases, making each subpixel clearer. This shows that the colors are clearer by reducing the loss of depths / high wavelengths into the image. The selective filtering of toxic blue light is demonstrated by the particularly reduced transmission between 415 and 435 nm in Figures 15a, 19a and 23a. The retained or improved color space is most clearly shown in the color change comparisons in Figures 17a-c, 21a-c and 25a-c, and the color space plots in Figures 17d, 21d and 25d have been prepared. Figs. 17d, 21d and 25d show the color separation and various display spectra in the color space.Figs. 14a (no dye) and 14b (color filter with dye) show the change in transmittance before and after the introduction of dye into the color filter. Comparing Figures 14a and 14b, the addition of dye significantly improves the separation between different transmission peaks. For example, in FIG. 14 a, there is an overlap between the blue and green transmission curves, which is however significantly reduced in FIG. 14 b. The same applies to the comparison of the overlap of the green and red curves, but is less dramatic. This reduction in overlap improves the color gamut. Moreover, the overall transmittance of each color is not affected by the addition of dye, as can be seen from the comparison of Figures 14a and 14b. In fact, the green and red transmission curves show a marked improvement in transmission. Therefore, as shown in the figure, there is no reduction in transmittance or brightness despite the improvement in color gamut.Figures 15a-c compare the individual color filters in diagrams 14a and 14b. Color filters are assigned to specific wavelength ranges and separate color filters show the change between unmodified and dye-modified color filters. In particular, Figure 15a compares the transmission curve of the original blue filter and the modified blue filter. Similarly, Fig. 15b compares the transmission curves of the original red filter and the modified red filter, and Fig. 15c compares the transmission curves of the original green filter and the modified green filter that I compare. Maintenance and / or improvement of transmittance after addition of dye is clearly shown in Figures 15a-c by comparing the peaks of each plot for the unmodified and modified filters.Figure 16a-b shows the effect of adding dye to the color filter on the saturation of the red, green and blue primary colors. More specifically, Figs. 16a-b are plots of the obtained (or improved) color gamut as can also be seen in the color gamut plot in Fig. 17d. These figures show that the addition of dye to a color filter focuses the primary colors. Figures 16a (no dye) and 16b (color filter with dye) show the color change after addition of dye to the color filter. Similar to the previous Figures 14-15, Figures 16a and 16b are categorized by colors in Figures 17a-c, and show that the addition of dye to the color filter maintains (enhances) the saturation and sharpness of the colors. It is clear that this is not the case. FIG. 17 d shows the color scale diagram for the original (no dye added) and the modified (dye added to the color filters) display panel. As we know all, the color gamut shows the three primary colors red, green and blue. Although the diagram shown here is black and white, it is interpreted as including the color trend of a standard color space diagram, as shown in the following diagram. https: / / upload.wikimedia.org / wikipedia / commons / 9 / 91 / SRGB_chromaticity_CIE1931.svg Table 7: provides a breakdown of the data shown in Figure 17d. Table 7 provides a breakdown of the data shown in Figure 17d.Red Redx x x x x x x0,6406Red Redx x x x x x x0,63940,00116275y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y0.3385y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y0,31520,02333859Y is Y0,0863Y is Y0,0899-0,0035861Green Greenx x x x x x x0,3192Green Greenx x x x x x x0,30020,01895069y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y0,6086y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y0.6144-0,0058603Y is Y0,176Y is Y0,3563-0,0386734Bluex x x x x x x0,545Bluex x x x x x x0,1627-0,0081111y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y0,0602y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y0,05780,002473Y is Y0.0355Y is Y0,03390,00157733White pointx x x x x x x0,3081White pointx x x x x x x0,3112-0,0031173y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y0,3216y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y0,3305-0,0080335Y is Y0,4394Y is Y,-0,0406822L*3,9692L*4,3367-0.367482a*0,1358a*-0,17530,31116297b*-0,3960b*0,0316-0,4275755Thus, FIGS. 14-17 show that overall, the addition of dye to the color filter (e.g., at the subpixel level as above), the addition of blue dye to the blue subpixel, and the addition of green dye to the green subpixel. We show that adding red dye to red sub-pixels (and combinations thereof) can result in increased overall brightness, toxic blue light reduction, and an obtained or improved color space. More specifically, it can reduce the blue light toxicity coefficient by 7.6% and increase the brightness by 9.3%. As shown in Table 8 below, the percent color space coverage is most relevant to indicate improvements for various standard color space plots (NTSC, sRGB, etc.). Some of the standards measured (see NTSC and Adobe RGB) show effective conservation of color gamut, while others show a coverage enhancement of 2-3%. Therefore, the addition of dye to the color filter can significantly increase brightness and at the same time at least maintain the color gamut. Table 8: Color space measurement of colored color filters Table 8: Color space measurement of colored color filtersNTSC69,75%67,61%72,68%67,75%sRGB98,48%93,64%102,61%96,37%Adobe RGB73,01%72,33%76,07%72,38%DCI-P372,60%72,58%75,64%75,17%BT.202052,08%52,08%54,27%54,26%Figs. 18 to 21 show the same kind of information as Figs. 14 to 17, but the color filter uses pigments instead of dyes. As shown herein, pigment dispersions may possibly exceed conventional color filters. However, pigments are not optimized for the photolithography required for modern displays. Thus, although potentially useful, the preferred embodiment of the disclosed system described herein uses dyes. For baseline performance, the toxicity factor can be reduced by almost 10% with pigments alone and color space coverage is further improved.Figs. 18a (without pigment) and 18b (color filter with pigment) show the change of transmission before and after the color filter contains pigment. Comparing Figures 18a and 18b, the addition of pigment significantly improves the separation between different transmission peaks. For example, in Fig. 18a there is an overlap between the blue and green transmission curves, but in Fig. 18b the overlap is reduced. The same is true and is even more dramatic when comparing the overlap of the green and red curves. As mentioned above, this reduction in overlap improves color space. Moreover, the overall transmittance of each color is not affected by the addition of pigment, as can be seen from the comparison of Figures 18a and 18b. In fact, the green and red transmission curves show a marked improvement in transmission. Therefore, as shown in the figure, the color space is improved without lowering the transmittance or brightness.Figures 19a-c compare the individual color filters in diagrams 18a and 18b. Color filters are assigned to specific wavelength ranges and separate color filters show the change between unmodified and pigment-modified color filters. In particular, Figure 19a compares the transmission curve of the original blue filter and the modified blue filter. Similarly, Fig. 19b compares the transmission curves of the original red filter and the modified red filter, and Fig. 19c compares the transmission curves of the original green filter and the modified green filter that I compare. The improvement in transmittance after pigment addition is clearly shown in Figures 19a-c by comparing the peaks of each plot for the unmodified and modified filters.Figure 20a-b shows the effect of adding pigments to the color filter on the saturation of the primary colors red, green and blue. More specifically, Figs. 20a-b are graphs of the obtained (or improved) color gamut as can also be seen in the color gamut graph of Fig. 21d. These plots show that the addition of pigments to a color filter sharpens the primary colors. Figures 20a (without pigment) and 20b (color filter with pigment) show the color change after pigment is added to the color filter. Similar to the previous Figs. 18-19, Figs. 20a and 20b are grouped by colors in Figs. 21a-c, showing that the addition of pigment to the color filter maintains (improves) the saturation and sharpness of the colors. It is clear that this is not the case. Figure 21d shows the color scale diagram for the original (no added pigments) and modified (color filter added pigments) display panel. As we know all, the color gamut shows the three primary colors red, green and blue. Although the diagram shown here is black and white, it is interpreted as including the color trend of a standard color space diagram, as shown in the following diagram. https: / / upload.wikimedia.org / wikipedia / commons / 9 / 91 / SRGB_chromaticity_CIE1931.svg Table 9: provides a breakdown of the data shown in Figure 21d. Table 9 provides a breakdown of the data shown in Figure 21d.Red Redx x x x x x x0,6406Red Redx x x x x x x0,7096-0,0690322y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y0,3385y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y0,29030,0482158Y is Y0,0863Y is Y0,1219-0,0356136Green Greenx x x x x x x0,3192Green Greenx x x x x x x0,13000,18915083y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y0,6086y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y0,7143-0,1057299Y is Y0,3176Y is Y0,30180,015832.19Bluex x x x x x x0,1545Bluex x x x x x x0,14440,0101312y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y0,0602y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y0,03960,0206847Y is Y0,0355Y is Y0,02050,01500686White pointx x x x x x x0,3081White pointx x x x x x x0,3144-0,0062584y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y0,3216y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y0,3264-0,0048146Y is Y0,4394Y is Y0,4442-0,0047745L*3,9692L*4,0123-0,0431291a*0,1358a*0,2291-0,0932128b*-0,3960b*-0,0767-0,3192571Therefore, FIGS. 18 to 21 show that pigments are added to the color filter altogether (e.g., the subpixels shown above). Level, add blue dye and / or pigment to blue subpixels, add green dye and / or pigment to green subpixels, add red dye and / or pigment to red subpixels, and then) may result in increased overall brightness, reduced toxic blue light, and maintained or improved color gamut. More specifically, it can reduce the blue light toxicity coefficient by 9.79% and increase the brightness by 1.0%. As shown in Table 10 below, the percent color space coverage is most relevant to indicate improvements for various standard color space plots (NTSC, sRGB, etc.). All standards measured show an increase in coverage from 6% to 21%. Therefore, the addition of pigments to color filters can greatly improve the color gamut while effectively maintaining brightness.

[0206] Table 10: Color space measurement of color filters containing pigments

[0206] Table 10: Color space measurement of color filters containing pigmentsNTSC69,75%67,61%121,67%86,33%sRGB98,48%93,64%171,79%99,27%Adobe RGB73,01 %72,33%127,35%93,53%DCI-P372,60%72,58%126,64%88,47%BT.202052,08%52,08%90,85%61,48%Figs. 22 to 25 show the same information as Figs. 14 to 17 and 18 to 21, but instead of dyes or pigments, both dyes and pigments are used in the color filter. Therefore, Fig. 22a (no dye / pigment) and Fig. 22b (color filter with dye and pigment) show the change in transmittance before and after the color filter contains dye and pigment. Comparing Figures 22a and 22b, the addition of dye / pigment significantly improves the separation between different transmission peaks. For example, in FIG. 22 a, there is an overlap between the blue and green transmission curves, but in FIG. 22 b, this decreases significantly. This is also true and is even more dramatic when comparing the overlap of the green and red curves. As mentioned above, this reduction in overlap improves brightness and color gamut. Moreover, the overall transmittance of each color is not affected by the addition of dyes or pigments, as can be seen from the comparison of Figures 22a and 22b. In fact, the green and red transmission curves show a marked increase in transmission. Therefore, as shown in the figure, there is no reduction in transmittance or brightness despite the improvement in color gamut.Figures 23a-c compare the individual color filters in the diagrams 22a and 22b. Color filters are assigned to particular wavelength ranges and separate color filters show the variation between unmodified color filters and color filters modified with dyes / pigments. Specifically, FIG. 23a compares the transmission curve of the original blue filter and the modified blue filter. Similarly, Fig. 23b compares the transmission curve of the original red filter and the modified red filter, and Fig. 23c compares the transmission curve of the original green filter and the modified green filter. The improvement in transmission after the addition of dyes and pigments is clearly shown in Figures 23a-c by comparing the peaks of each plot for the unmodified and modified filters.Figure 24a-b shows the effect of adding dyes and pigments to the color filter on saturation of the primary colors red, green and blue. More specifically, Figs. 24a-b are graphs of the obtained (or improved) color gamut as can also be seen in the color gamut graph of Fig. 25d. These plots show that the addition of dyes and pigments to color filters sharpens the primary colors. Figures 24a (no dye / pigment) and 24b (color filter with dye and pigment) show the color change after addition of dye and pigment to the color filter. Similar to the previous Figs. 22-23, Figs. 24a and 24b in Figs. 22-23 are categorized by colors. It is clear from Figures 25a-c that color saturation and sharpness is maintained or improved by the addition of dyes or pigments to the color filter. Figure 25d shows the color space diagram for the original display panel (without added dyes / pigments) and the modified display panel (dyes and pigments added to the color filters). As we know all, the color gamut shows the three primary colors red, green and blue. Although the figure shown here is black and white, it is interpreted to contain the color trend of a standard color space diagram as shown in the following figure. https: / / upload.wikimedia.org / wikipedia / commons / 9 / 91 / SRGB_chromaticity_CIE1931.svg Table 11: Provides a breakdown of the data shown in Figure 25d. Table 11: Provides a breakdown of the data shown in Figure 25d.Red Redx x x x x x x0,6406Red Redx x x x x x x0,7094-0,0688108y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y0,3385y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y0,29050,0479959Y is Y0,0863Y is Y0,1013-0,01499Green Greenx x x x x x x0,3192Green Greenx x x x x x x0,20280,11637725y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y0,6086y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y0,7560-0 1473988Y is Y0,3176Y is Y0,3415-0,0239479Bluex x x x x x x0,1545Bluex x x x x x x0,1556-0,0010127y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y0,0602y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y0,02100,03923364Y is Y0,0355Y is Y0,01200,023477521 White pointx x x x x x x0,3081In this case, the white point is knownx x x x x x x0,3117-00035979y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y0,3216y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y0,3312-0,009,534Y is Y0,4394Y is Y0,4549-0,0154604L*3,9692L*4,1088-0,139654a*0,1358a*-0,17620,31201748b*-0,3960b*0,0680-0,464046Thus, FIGS. 22-25 collectively illustrate the addition of dyes and pigments to color filters (e.g., at the subpixel level above, the addition of blue dye and / or pigment may be added to blue subpixels, and the addition of green dye and / or pigment may be added to green subpixel, red dye and / or pigment may be added to red subpixels, and combinations thereof) It has been shown to increase overall brightness, reduce toxic blue light, and maintain or improve color space.Specifically, it can reduce the blue light toxicity coefficient by 7.41% and increase the brightness by 3.7%. As shown in Table 12 below, the percent color space coverage is most relevant to indicate improvements in various standard color space diagrams (NTSC, sRGB, etc.). All measured standards show coverage improvements of 6-36%. Therefore, the addition of dyes and pigments to color filters significantly increases brightness and significantly improves color space. Table 12: Color space measurement of color filters using dyes and pigments Table 12: Color space measurement of color filters using dyes and pigmentsNTSC69,75%67,61%124,63%97,50%sRGB98,48%93,64%175,96%99,88%Adobe RGB73,01%72,33%130,44%99,25%DCI-P372,60%72,58%129,71%99,76%BT.202052,08%52,08%93,06%88,17%Further functions can be added to optimize the stack. A display system according to the present invention may include a backlight unit including an optical stack. The disclosed optical stack may comprise a light emitting system such as a light emitting diode, an array of light emitting diodes, or another light source having substantially white light. These optical stacks may contain layers of optical films which can transmit light or alter the properties of the light passing through them. These include reflective layers, scattering layers, brightness enhancing layers (usually prisms) and polarizing filters. In some embodiments, an optical stack may comprise at least one optical film having at least one light conversion layer therein. Moreover, the same at least one optical film may contain a light absorbing layer thereon or therein. Alternatively, the optical stack may comprise at least one optical film having at least one light converting material therein and at least one optical film having at least one light absorbing material disposed thereon or therein. The stack may also reduce glare, which provides additional advantages to the resulting appearance of the display.In other embodiments, depending on the dye or pigment used and the amount used in the layer of the color filter, the color gamut of the emitted light passing through the filter layer is changed by changing the color gamut visible to the user. The color may vary. By adding certain compounds such as dyes or pigments in certain amounts, the color of the resulting light passing through a color filter within the color gamut may change. In other embodiments, the transmittance and emissivity of the color filter may also be decreased due to the additional compounds, thereby decreasing the color value representing color emission, transmittance, intensity, etc. Reducing color values reduces color overlap, increases sharpness between colors, and improves color control and image sharpness.Color filters may also include dyes that affect the particular color of the associated subpixel in some embodiments. For example, a dye may be added to the blue subpixel because the selected dye or pigment may affect the blue color. In some cases, the dye absorbs blue colors, while in other cases, the dye increases or improves the transmission of blue wavelengths. In some embodiments, the dye may affect wavelengths other than blue light, and in other embodiments, the light may affect wavelengths other than blue light, and in other embodiments, the light may affect blue light wavelengths (particularly at certain wavelengths the user has). (in conjunction with blue light) may increase or improve light transmittance. In another embodiment, the same or different dyes, pigments, or compounds may be added to other color sub-pixels (not limited to red and green sub-pixels) to further control color, color contrast, and image sharpness and reduce the toxicity of certain light in certain wavelength ranges. Adding red and green dyes, compounds, pigments, etc. to the red and green sub-pixels, respectively, results in a shift in color space, thereby changing the light passing through the filter and possibly improving the resulting light representation. In this case, the expansion of the color space or the change of the color definition range improves the user experience and enhances the resultant luminescence. Improved display images and safer illumination improve the user experience and improve the health and well-being of the users.Methods for attenuating blue light emission based on absorption of light (or removal of light) without subsequent emission of light in the visible region of the electromagnetic spectrum generally include other methods without such absorption properties. The brightness (measured and / or perceived) of the display may be reduced compared to an identical reference display. In some cases, the power consumption of the display may be increased (as compared to the power consumption of the reference display) to compensate for the decrease in brightness associated with such absorption. In general, an increased power consumption of the display may be undesirable and may have a negative effect on the battery life, in particular in portable devices.The present invention discloses a system for modifying light emission of a display, in which a light converting or light absorbing material is used at a location remote from the light source of the display (e.g., color filter 112 in FIG. 1 ). A light conversion material is generally capable of absorbing light in a first wavelength range and emitting light in a second wavelength range (and thus "converting" light from one wavelength range to another). A light absorbing material absorbs light in a wavelength range. In this disclosure, the conversion from shorter wavelengths to longer wavelengths may be referred to as "up conversion" and the conversion from longer wavelengths to shorter wavelengths may be referred to as "down conversion". However, these definitions may not be universal and other documents may define upconversion and downconversion inversely (e.g., some documents define them for frequencies inversely proportional to wavelength. Such terms may be defined).Systems using light conversion materials off the display light source absorb light in less useful or harmful wavelength ranges, such as the UV and blue light ranges (especially below about 455 nm), and absorb light in the green and red light ranges can be used to reradiate light in more meaningful and harmless wavelength ranges (from a health perspective) such as wavelength ranges. In some cases, light from shorter blue wavelengths (about 455 nm or less) may be upconverted to longer blue wavelengths, which are less harmful and also useful for display lighting. Thus, a system using a light conversion material at a distance from the light source may modify the light emission of the display system compared to a display system not using such a light conversion material.In some cases, systems using light converting or light absorbing materials at a distance from the light source of the display may be employed in displays of electronic devices to reduce blue light emissions and enable the resulting display. The system can achieve brightness comparable to reference displays without light conversion materials or light absorption layers that are remote from the light source, thereby consuming no more than 10% more energy than reference displays.Systems using light converting or light absorbing materials at a distance from the light source are among the known systems that reduce the blue light emission of displays that do not use light converting or light absorbing materials at a distance from the light source. The color balance of the display may be improved compared to conventional approaches. Some of these known conventional approaches reduce the emission of blue light by absorbing or otherwise removing a portion of the blue light from the spectrum, whereby the amount of light emitted from the display can be varied. In addition to reducing the amount of harmful blue light emitted from electronic display devices, the systems of the present disclosure utilize light converting materials at a distance from the light source as compared to other similar displays to provide attenuation of the blue light without such light converting materials. In some embodiments, a display system comprising a system of the present disclosure including a light converting or light absorbing material at a location remote from the light source may maintain a D65 white point. In some embodiments, a display system comprising a system of the present disclosure including a light converting or absorbing material at a location remote from the light source is substantially the same as a reference display system that does not include a blue light mitigation system.Some embodiments of the systems of the present disclosure use at least one light converting material in combination with at least one light absorbing material to reduce harmful blue light emissions from a display system and maintain the color balance of the display system.Systems of the present invention may comprise multiple light converting or light absorbing materials capable of absorbing light from multiple wavelength ranges, including wavelength ranges other than the UV or blue wavelength ranges.The light converting or light absorbing material may be included or provided in, on, or with the light management film, reflector, or other layer of the film in any suitable manner. In some embodiments, light converting or light absorbing materials may be extruded, cast, or diffused with the film. In some embodiments, light converting or light absorbing materials may be applied to the film. In some embodiments, the light converting or light absorbing material may be included as a separate film layer or applied to one of the layers that make up the backlight unit. In some embodiments, the light converting or absorbing material is included in an adhesive used to glue or laminate one or more layers of the display system, for example any suitable layer or film of the display system 100, or may be provided with adhesive. Such adhesives containing light converting or light absorbing materials are substantially optically transparent and transmit the adhesive, except for the deflection of light associated with absorption and re-emission by the light converting material, light scattering is negligible.In some embodiments, light conversion materials or light absorbing materials may be dispersed or dispersed soluble or insoluble in a material that is a component or precursor of a suitable film or layer of the display system 100. Systems of the present disclosure that include light conversion materials or light absorbing materials can be custom designed to be retrofitted into existing display systems with selectable design parameters including selection of light conversion materials, light absorbing materials, and also other non-converting blocking or filtering compounds. In other examples, new display systems may be designed using systems of the present disclosure that include light conversion and / or light absorption materials. Through a wide selection of LEDs (and / or other light sources), light conversion materials, light absorbing materials and other non-converting blocking or filtering compounds, as well as other optical films and devices, numerous combinations of approaches can be developed to provide displays that take into account the concerns of eye health and at the same time provide high display quality.While embodiments of the disclosed improvements have been illustrated and described, it will be apparent that various changes may be made therein without departing from the scope of the invention. It is also contemplated that various combinations or sub-combinations of specific features and aspects of the disclosed embodiments may be combined with or interchanged with one another to form various types of embodiments. Accordingly, the disclosed improvements are not intended to be limited except as by the appended claims. All references cited are incorporated herein by reference in their entirety.

Claims

A display system comprising a backlight unit comprising a light emitting array; an LCD panel and a color filter comprising one or more absorbing dyes and one or more dye enhancing compounds, wherein the color filter is comprised of a plurality of pixels, each pixel is comprised of red, green and blue sub-pixels, the sub-pixels are comprised of resin, the one or more absorbing dyes and the one or more dye enhancing compounds are disposed within the resin of the at least one color set of the red, green and blue sub-pixels within the color filter.The display system of claim 1, further comprising a light emitting diode integrated into a light emitting array, a reflector adjacent to the light emitting array, a diffuser opposite the reflector, a thin film transistor array layer, and a cover glass layer.The display system of claim 1, wherein the liquid crystal panel is adjacent to the color filter and is composed of a liquid crystal layer disposed between two panel plates.The display system of claim 1, further comprising a first brightness enhancing layer and at least one polarizer, wherein a first polarizer is disposed adjacent to the color filter, the second brightness enhancing layer is adjacent to the first brightness enhancing layer, the second polarizer is disposed adjacent to the backlight unit.The display system of claim 1, wherein the one or more dye enhancing compounds are at least one photoinitiator, a coinitiator, a monomer, and a stabilizer.The display system of claim 1, wherein the one or more dye enhancing compounds are antioxidants.The display system of claim 1, wherein the one or more absorbing dyes are soluble primary light absorbing dyes included in the blue sub-pixels of the color filter.The display system of claim 7, wherein the one or more absorbing dyes further comprise a secondary light absorbing dye that absorbs light at wavelengths less than 415 nm.The display system of claim 7, wherein the one or more absorbing dyes further comprise a secondary light absorbing dye that absorbs light at wavelengths greater than 480 nm.The display system of claim 7, wherein the dominant light absorbing dye reduces the blue phototoxicity factor by up to 20%.The display system of claim 1, wherein the one or more absorbing dyes are soluble primary light absorbing dyes included in the green sub-pixels of the color filter.The display system of claim 11, wherein the one or more absorbing dyes comprise a first secondary light absorbing dye that absorbs light at wavelengths less than 500 nm and a second secondary light absorbing dye that absorbs light at wavelengths greater than 575 nm, or both.The display system of claim 1, wherein the one or more absorbing dyes are soluble primary light absorbing dyes included in the red sub-pixels of the color filter.The display system of claim 13, wherein the one or more absorbing dyes further comprise a secondary light absorbing dye that absorbs light at wavelengths less than 590 nm.The display system of claim 1, wherein the one or more absorbing dyes comprise a first soluble primary dye that absorbs in the wavelength range of 410-430 nm and a second soluble primary dye that absorbs in the wavelength range of 470-495 nm, and any combination thereof.The display system of claim 1, wherein the one or more absorbing dyes are at least one of organic dyes, metal complex dyes, porphyrin compounds, coumarins, retinal pigments, and phthalocyanine compounds.The display system of claim 1, wherein the display system has a brightness reduction of 10% or less compared to a display system that does not contain the one or more absorbing dyes.The display system of claim 1, wherein the color scale changes by 5% or less.The display system of claim 1, wherein the combination of one or more absorbing dyes and one or more dye enhancing compounds is heat resistant and resists color space coordinate changes of greater than 0.005 along the X axis and 0.005 along the Y axis even after being exposed to a temperature of at least 200°C for at least 30 minutes.

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