201106310 六、發明說明： 【發明所屬之技術領域】 本發明係關於用於產生期望光顏色之固定影像、圖形、 照片影像及字元的發光標瑞及發光顯示表面。特定言之， 本發明係關於發光標諸’其使用半導體發光二極體（led) 及鱗光體（光致發光）材料以產生發射光之期望顏色。此 外’本發明係關於在較大表面面積上產生彩色光。 【先前技術】 發光標諸、/顯示器’有時稱為照明標誌或顯示器，用於 許多應用中’包括：用於事務所之名稱標誌，其使用固定 圖形及字元，用於廣告之固定影像標誌，緊急標誌，例如 出口標誌、交通信號、道路標誌，如限速、停車、讓路 (讓步）標誌、方向指示燈標誌等等。 製作發光標總之通常方式係採用背光標諸或顯示器之形 式’其使用包含一或多個白色光源之"光箱”，例如螢光燈 管、氖燈或白織燈泡β顯示器之前面板包含透明渡色片， 通常係彩色透明丙烯酸薄片，其選擇性地過濾白色光，以 提供期望顏色的光發射、圖形或影像。通常，光箱係由薄 片金屬定製成矩形箱或所需字母/字元/符號（通道字母）之 形狀的箱’此一結構結合白色光源可占標誌總成本的較大 比例。用於該等系統内之彩色顏料、染料或著色劑係透明 遽色片，其吸收不需要之彩色光。此方法用於大多數發光 標誌及固定顯示器，以及發光透明度及許多彩色光。此類 標S忽之缺點係必須針對需要的每一顏色製造濾色片，其會 150235.doc 201106310 4加成本。在最小化成本之實踐中，顏色數目限於大約二 十。此外，雖然此類標誌在夜間提供良好性能，但由於其 依賴於光透射而非反射的操作模式，在白天的顏色性能較 弱，此類標誌可呈現"褪色"。此外，增加標誌之亮度導致 白色月光渗出’其造成顏色飽和度偏移，例如深紅色褪色 並呈現發白（粉紅色）紅色。此效應係由於彩色透明面板 之’’顏料強度"，其係針對發射操作模式（夜間）予以最佳 化，因此反射操作模式（白天）的性能通常不可接受。 目前單色標諸及顯示器還有另一使用方法。可使用匹配 目標顏色（例如停止燈及汽車尾燈中之紅色led)之單色光 源。對於大面積顏色標誌、建築照明及重點照明，通常對 較大區段之單一顏色使用此專用彩色光之方法。 另外熟知的係使用LED陣列構造標誌，例如交通標諸， 其中將LED配置成標達' 形式’例如行人穿越道上使用的箭 頭符號及"走/停”器件，其中設計的從LED，，本地"發射之光 之波長與檢視者檢視或感知之彩色光相同。此類標詩通常 進一步包括濾色片或透鏡，以為發射光提供更均勻之顏色/ 強度，或偏移顏色（與使用具有橙色濾光器之白色LED以產 生橙色標誌及/或顯示器或照明元件的情形相同）。 白色發光二極體（LED)係本技術中熟知的，其係較新創 新。直至發展出在電磁頻譜之藍色/紫外線内發射的LED， 發展基於LED之白色光源才變得實際。眾所周知，產生白 色光之LED("白色LED”）包括磷光體，其係光致發光材 料，會吸收LED發射之輻射的一部分並重新發射不同顏色 150235.doc 201106310 (波長）之輻射。例如LED在可見頻譜部分發射藍色光，磷 光體重新發射黃色或綠色及紅色光之組合、綠色及黃色或 黃色及紅色光。磷光體未吸收的LED發射之可見藍色光的 部分與發射之黃色光混合，以提供對眼睛呈現為白色的 光。 預測白色LED可能取代白熾、螢光及氖光源，因為其具 有較長操作壽命，可能長達1〇〇,〇〇〇小時，以及其具有低 功率消耗下之高效率。最近高亮度白色LED已用於取代顯 示器背光單元内之傳統白色螢光及氖燈。具有該等白色背 光之彩色材料具有各種形式，例如乙婦薄膜、彩色聚碳酸 醋及丙烯酸、彩色照片透明度薄膜、用於網版印刷之透明 彩色墨水等。所有該等材料按相同基本原理工作，即包含 透明彩色染料或顏料，其吸收背光白色之不需要的顏色， 並向檢視者透射期望顏色。因此，其全部用作濾色片。使 用白色LED雖然降低了背光發光標誌之功率消耗，但在操 作於白天條件時仍提供了關於顏色飽和度之㈣性能，通 常顏色會呈現褪色。 US 6,883,926揭示一種用於顯示器照明之裝置，其包含 一顯不表面，該顯示表面包括磷光體材料及至少一個發光 半導體器件（LED)，其係、定位成藉由以適當波長之電磁輕 射加以照射而激發磷光體。US 6,883,926教導背光及前光 變更。此一裝置在車輛儀表顯示器中可找 本發明源於提供改良式發光標誌之努力，其提‘供較大靈 活性並至少部分克服了已知標誌之限制。此外，本發明之 150235.doc 201106310 一目的係提供一發光標誌’其增加了發射光之亮度並減小 了顏色飽和度及品質上的劣化。 【發明内容】 依據本具體實施例，一發光標誌包含：一發光顯示表 面’其包括至少一個磷光體；以及至少一個輻射源，其可 操作以產生並照射一選定波長範圍之激發能，該來源係配 置成用以採用激發能照射該顯示表面，以便填光體發射一 選定顏色之輻射，並且其中可選擇該顯示表面以提供從該201106310 VI. Description of the Invention: [Technical Field] The present invention relates to a luminescent and luminescent display surface for producing fixed images, graphics, photo images and characters of a desired light color. In particular, the present invention relates to illuminating targets that use semiconductor light-emitting diodes (LEDs) and spheroidal (photoluminescent) materials to produce a desired color of emitted light. Further, the present invention relates to the generation of colored light over a large surface area. [Prior Art] Illuminated labels, / displays 'sometimes referred to as lighting signs or displays, used in many applications' include: a name mark for a firm that uses fixed graphics and characters for fixed images of advertisements Signs, emergency signs, such as exit signs, traffic signals, road signs, such as speed limit, parking, give way (concession) signs, direction indicator signs, etc. The usual way of making a luminescent standard is to use a backlight or display form. It uses a "lightbox" containing one or more white light sources, such as a fluorescent tube, a xenon lamp or a white woven bulb. The front panel contains transparent The color-transparent film, usually a color transparent acrylic sheet, selectively filters white light to provide a desired color of light emission, pattern or image. Typically, the light box is custom made from sheet metal into a rectangular box or desired letter/word. a box with the shape of a meta/symbol (channel letter). This structure combined with a white light source can account for a large proportion of the total cost of the logo. The color pigments, dyes or colorants used in these systems are transparent enamel sheets, which absorb No need for colored light. This method is used for most illuminating signs and fixed displays, as well as illuminating transparency and many colored lights. The disadvantage of this type of S is that the color filter must be made for each color required, which will be 150235. Doc 201106310 4 plus cost. In the practice of minimizing costs, the number of colors is limited to about twenty. In addition, although such signs provide good performance at night, Due to its mode of operation that relies on light transmission rather than reflection, the color performance during the day is weak, and such marks can exhibit "fade". In addition, increasing the brightness of the mark causes white moonlight to ooze out, which causes color saturation. Shifting, for example, deep red fading and appearing whitish (pink) red. This effect is due to the 'pigment intensity' of the color transparent panel, which is optimized for the emission mode of operation (nighttime), so the reflection mode of operation ( Performance during daytime is generally unacceptable. There are currently other methods of using monochromatic standards and displays. Monochromatic light sources that match the target color (such as stop lights and red LEDs in the taillights of the car) can be used. Architectural lighting and accent lighting, which is typically used for a single color of a larger segment. Also well known is the use of LED arrays to construct signs, such as traffic signs, where the LEDs are configured to be labeled 'forms' such as pedestrians Cross the arrow symbol used on the track and "walk/stop" device, which is designed from LED, local "launch The wavelength of light is the same as the color light that the viewer views or perceives. Such poems typically further include color filters or lenses to provide a more uniform color/intensity for the emitted light, or to offset the color (and use a white LED with an orange filter to produce an orange logo and/or display or lighting element) The situation is the same). White light emitting diodes (LEDs) are well known in the art and are relatively new and innovative. Until the development of LEDs emitting in the blue/ultraviolet spectrum of the electromagnetic spectrum, the development of LED-based white light sources became practical. It is well known that LEDs that produce white light ("white LEDs)) include phosphors, which are photoluminescent materials that absorb a portion of the radiation emitted by the LED and re-emit radiation of different colors 150235.doc 201106310 (wavelength). Blue light is emitted in the visible spectrum portion, the phosphor re-emits a combination of yellow or green and red light, green and yellow or yellow and red light. The portion of the visible blue light emitted by the phosphor unabsorbed LED is mixed with the emitted yellow light. To provide light that appears white to the eye. Predicting white LEDs may replace incandescent, fluorescent, and xenon sources because of their long operating life, potentially up to 1 〇〇, 〇〇〇 hours, and their low power consumption High efficiency. Recently, high-brightness white LEDs have been used to replace traditional white fluorescent and xenon lamps in display backlight units. Color materials with such white backlights come in various forms, such as B-film, colored polycarbonate and acrylic. Color photo transparency film, transparent color ink for screen printing, etc. All these materials are based on the same basic Work, that is, contain transparent color dyes or pigments that absorb the unwanted color of the backlight white and transmit the desired color to the viewer. Therefore, all of them are used as color filters. The use of white LEDs reduces the power of the backlight illumination mark. Consumed, but still provides (4) performance with respect to color saturation when operating in daytime conditions, typically the color will fade. US 6,883,926 discloses a device for display illumination that includes a display surface that includes a phosphor The material and the at least one light emitting semiconductor device (LED) are positioned to excite the phosphor by illumination with a suitable wavelength of electromagnetic light. US 6,883,926 teaches backlighting and front light modification. This device can be used in a vehicle instrument display. The present invention seeks to provide an improved illuminating sign that provides greater flexibility and at least partially overcomes the limitations of known indicia. Furthermore, the present invention provides a luminescent sign ' Increased brightness of emitted light and reduced color saturation and quality degradation. According to this embodiment, a luminescent sign comprises: a luminescent display surface 'which includes at least one phosphor; and at least one radiant source operable to generate and illuminate excitation energy for a selected range of wavelengths, the source being configured to </ RTI> illuminating the display surface with excitation energy such that the light-emitting body emits radiation of a selected color, and wherein the display surface is selectable to provide
相同輻射源發射之光的一不同選定顏色。由於單一低成本 顏色激發源可用於產生任何顏色，此消除了不同色源之需 要並減少了成本。此外，相對於傾向於熱點及陰影的傳統 背光系統，該標誌具有較佳光均勻度。此外，該標誌具有 增加之顏色飽和度及改良之功率效率，因為其使用磷光體 產生選定光之顏色，而非從白色光源吸收不需要之顏色的 渡光器。A different selected color of light emitted by the same radiation source. Since a single low cost color excitation source can be used to create any color, this eliminates the need for different color sources and reduces cost. In addition, the logo has better light uniformity than conventional backlight systems that tend to be hot spots and shadows. In addition, the mark has increased color saturation and improved power efficiency because it uses phosphors to produce the color of the selected light, rather than a light absorbing device that absorbs unwanted colors from the white light source.
可將該至少一 至少一部分上， 個磷光體提供於顯示表面之内或外表 或併入顯示表面之至少一部分内。 面的 為提供多色衫標誌，或選定顏色/色調之標誌，標誌進 步包3第一及第二磷光體其係提供於顯示表面之内或The at least one portion of the at least one phosphor may be provided within or external to the display surface or incorporated into at least a portion of the display surface. To provide a multi-color shirt logo, or to select a color/tone logo, the logo package 3 first and second phosphors are provided within the display surface or
外表面的至少_却八L 刀上。或者/並且，將第一磷光體提供 衣面的至少一部分上，mj將弟二瑪光體摘 供於顯示表面之休主 心外表面的至少一部分上。第一及第二磷兴 體可作為個別層.於 ’作為至少一層内之混合物來提供；或名 彼此鄰近地提供。 另—配置中，將磷光體併入顯示表面之 150235.doc 201106310 至少一部分内。 該標誌進一步包含一濾光器，其對該顯示表面發射之光 實質上係透明的，並過濾光的其他顏色。將該渡光器（較 佳的係彩色透明丙烯酸、乙烯等等）置放於該顯示表面前 方，以便該濾光器反射之光看似與該顯示表面發射之光實 質上係相同顏色。使用顏色反射濾光器，即反射顏色增 強’在白天條件下提供優異顏色性能，並減少了標誌 之”槐色"。（彩色透明丙烯酸、乙烯等等） 為改善強度之均勻度’顯示表面進一步包含光擴散構 件。 一項配置中，將顯示表面配置成字元、符號或器件之形 狀或者/並且，標誌、進一步包含一遮罩，其具有對發射 光實質上係透明的至少一個窗口及/或至少一個光阻擋區 域，其中該窗口及/或光阻擋區域定義一字元、一符號或 一器件。 一項配置中，顯示表面包含波導介質，並將激發源配置 成將激發能耦合至顯示表面内。此一配置中，顯示表面可 為一實質平坦表面，並且將激發能耦合至該顯示表面之一 邊緣的至少一部分内。此一配置消除了光箱之需要並提供 緊湊標誌，其厚度實質上與顯示表面厚度相同。較佳的係 若顯示表面係平坦的，標誌進一步包含與發光表面相反之 表面的至少一部分上之反射器’以增強從發光表面輸出之 光。在替代配置中’其中顯示表面係波導介質，顯示表面 係細長形式，並將激發能耦合至顯示表面之一末端的至少 150235.doc 201106310 7部分内。—項配置中’顯示表面係管狀並包括一鑽孔。 為支日加光輪出，在鑽孔表面之至少—部分上提供一反射 器另配置中，顯示表面係實心形式，並進一步在顯示 表面之外表面的-部分上包含反射器，以增加首選方向上 之光輸出。At least _ but eight L knife on the outer surface. Alternatively, and/or, the first phosphor is provided on at least a portion of the garment surface, and mj is applied to at least a portion of the outer surface of the exterior surface of the display surface. The first and second phosphors may be provided as individual layers. They are provided as a mixture in at least one layer; or the names are provided adjacent to each other. In another configuration, the phosphor is incorporated into at least a portion of the display surface 150235.doc 201106310. The indicia further includes a filter that is substantially transparent to the light emitted by the display surface and that filters other colors of the light. The pulverizer (preferably colored clear acrylic, vinyl, etc.) is placed in front of the display surface such that the light reflected by the filter appears to be substantially the same color as the light emitted by the display surface. Use a color-reflecting filter, ie a reflective color enhancement 'provides excellent color performance under daytime conditions and reduces the logo's "twilight". (Colored transparent acrylic, vinyl, etc.) To improve the uniformity of the intensity' display surface Further comprising a light diffusing member. In one configuration, the display surface is configured in the shape of a character, symbol or device or/and the indicia further comprises a mask having at least one window that is substantially transparent to the emitted light and And/or at least one light blocking region, wherein the window and/or light blocking region defines a character, a symbol or a device. In one configuration, the display surface comprises a waveguide medium and the excitation source is configured to couple excitation energy to Within the display surface. In this configuration, the display surface can be a substantially flat surface and the excitation energy can be coupled into at least a portion of one of the edges of the display surface. This configuration eliminates the need for a light box and provides a compact logo. The thickness is substantially the same as the thickness of the display surface. Preferably, if the surface is flat, the mark further includes a reflector on at least a portion of the surface opposite the light surface to enhance light output from the light emitting surface. In an alternative configuration where the surface-guided waveguide medium is displayed, the display surface is in an elongated form and the excitation energy is coupled to one of the display surfaces The end of the at least 150235.doc 201106310 7 part. In the configuration, the display surface is tubular and includes a borehole. For the daylighting, the reflector is provided at least on a portion of the borehole surface. The display surface is in solid form and further includes a reflector on the - portion of the outer surface of the display surface to increase the light output in the preferred direction.
田”’員示表面係背光或前光時，顯示表面可包含實質平坦 表面；係具有鑽孔之細長形式，其中提供至少—個激發 原或實〜細長形式，其中併入至少一個激發源。顯示表 面可用塑膠材料、聚碳酸酯、熱塑材#、玻璃、丙烯酸、 聚乙烯或聚矽氧材料製造。 有利地，激發源係發光二極體（LED)。使用led在環境 上更清潔’因為其消除了采基燈的需要。較佳的係咖可 操作以發射波長在35G(紫外線）至5⑼nm(藍色）之一範圍内 的輕射。LED提供增加的操作壽命，通f為刚，⑽❹小時， 其係傳統光源之十五倍，因此減少了維護。較佳實施方案 中，led可操作以發射波長在彻至· nm之—範圍内的 輪射，即藍色光。使用藍色光激發源之敎優點係可使用 僅紅色及黃色發㈣光體之組合產生選定顏色之 色 盤。 本發明可預期任何標諸類型，並可包括以下各物：名稱 標訪、廣告標誌、緊急指示燈標總、交通標諸、道路標: 或方向指示燈標誌、。 依據本發明之第二方面 面之發光標誌的發光顯示 ，提供用於根據本發明之第一方 表面，其中可選擇顯示表面以提 150235.doc 201106310 供從相同輻射源發射之光的不同選定顏色。 使用反射濾色片以提供反射顏色增強被視為本身較有創 新性，因此依據本發明之第三方面，發光標誌包含：一發 光顯示表面，其包括至少一個磷光體；至少一個輻射源， 其可操作以產生並輻射選定波長範圍之激發能，該來源係 配置成以激發能照射顯示表面，·以便磷光體發射選定顏色 之輻射；以及一濾光器，其對顯示表面發射之光實質上係 透明的，並過濾光的其他顏色。較佳的係，將該濾色片置 放於顯示表面前方’以便濾光器反射之光看似與顯示表面 發射之光實質上係相同顏色。 依據本發明之第四方面，光源包含：一發光表面，其包 括至少一個磷光體；以及至少一個輻射源，其可操作以產 生並輻射一選定波長範圍之激發能，該輻射源係配置成用 以採用激發能照射該發光表面，以便磷光體發射一選定顏 色之輻射’並且其中可選擇該發光表面以提供從相同輻射 源發射之光的不同選定顏色。根據本發明之光源的一優點 係其減小了所需磷光體之數量。 可將至少一個磷光體提供於發光表面之内或外表面的至 少一部分上，或併入發光表面之至少一部分内。 依據另一方面，發光標誌包含：發光顯示表面及依據本 發明之第四方面的光源。較佳的係，顯示表面進一步包括 反射顏色增強’並包含一濾光器，其對表面發射之光實質 上係透明的，並過濾光的其他顏色，以便濾光器發射之光 看似與顯示表面發射之光實質上係相同顏色。 150235.doc 201106310 【實施方式】 參考圖1，其顯示根據本發明之一背光發光標諸i的—分 解透視圖。在所說明之範例中，標誌丨係準備產生—字= "A"並包含一光箱2,其係配置成字母"A"之形狀。可從薄 片金屬製造、從-塑膠材料模製或從任何其他適當材料構 造光箱。光箱之内表面較佳的係包括—光反射表面以將 光向該標誌之一發光顯示表面3反射。在光箱2内提供若干 發光二極體（LED)4，其較佳的係發射波長範圍41〇至 nm内的藍色光之藍色LED。 發光顯不表面3大體上係平坦形式，並配置成定義字母 "A”之形狀。顯示表面3包含透明/半透明基板5，舉例而 言，諸如一聚碳酸酯' 聚乙烯、丙烯酸或玻璃薄片。將一 層磷光體材料6、光致發光材料提供於下表面上，其係朝 向基板5之LED的表面。可使用任何適當磷光體6，舉例而 言，諸如正矽酸鹽、矽酸鹽及鋁酸鹽材料，只要其可由 LED 4發射之輻射激發。由於較佳具體實施例中，磷光體 係對藍色光作出回應而發射並活化，本文中，將鱗光體稱 為藍色活化發射顏色（BAEC)磷光體。 基板5之一外表面上，提供一顏色增強濾光器層7，以增 強標誌、在日光條件下之顏色效能。 操作中’ LED發射之光8照射磷光體層6，從而導致磷光 體之激發’其發射不同顏色之光，光經過基板5及濾光器 7 ’以從一選定顏色之顯示表面產生光發射9。顏色增強濾 光器7係選擇成大體上對從顯示器發射之光9的顏色透明， 150235.doc 201106310 並過濾光的其他顏色。當顯示表面經受曰光i 〇時，顏色增 強濾光器7將僅反射光1丨，其顏色實質上對應於由標誌發 射之光9的選定顏色，從而提供一增強之顏色效能。此稱 為反射顏色增強’並被視為本身具有創新性。顏色增強滤 光器7可包含彩色顏料及/或彩色染料，例如，其係併入一 乙烯薄膜或與一黏結劑材料混合，並作為基板5上之一層 來提供。如已知’彩色顏料係不可溶的，並可為有機物， 介.J 士〇 Ciba 的 RED254、一 DIKETO-PYRR〇L〇-PYRROLE/f匕 合物或無機物’舉例而言，諸如氧化鐵，而顏色染料可 鲁 溶。 基於顏色發射填光體’特定言之係藍色活化發射著色劑 (BAEC) ’與基於顏色透射（顏色吸收劑）濾光器之熟知標鍵 相比，本發明之標誌提供實質上改良的顏色飽和度及效 率，參見表1。 顏色 輸入功率(W) 功率節省百分比 BAEC磷光體 螢光燈濾色片 紅色 3.71 8.00 53.6% 綠色 1.79 8.00 77.6% 黃色 4.31 8.00 46.2% 表1。輸入功率對輸出光色，對於根據本發明之BAEC填 光體標誌以及使用濾色片及螢光燈之熟知標誌產生相同光 輸出強度。 使用藍色光結合紅色及綠色光發射磷光體提供的實際上 連續的光色/色調之調色盤，其係藉由顯示表面從單色激 發源產生，較佳的係便宜的藍色LED。例如，可單獨藉由 150235.doc •12. 201106310 LED產生藍色光，而不需要磷光體。可藉由較厚紅色磷光 體層產生紅色光，並藉由較厚綠色磷光體層產生綠色光。 在本專利申請書之前後文中，較厚層意味著磷光體具有足 夠數量/濃度，以吸收全部入射之激發輻射。可藉由數量 不足以吸收撞擊磷光體之全部藍色光的綠色磷光體產生黃 色光，此方式使得發射光9係藍色及綠色光之組合，其對 眼睛呈現出黃色。按相似方式，可使用數量不足以吸收全 部藍色光的紅色磷光體產生紫紅色/紫色光，使得藍色光 與發射之黃色光組合，提供對眼睛呈現出紫紅色的發射光 9。可藉由紅色及黃色磷光體之組合產生白色光。應明 白’可藉由磷光體材料組合及/或數量之適當選擇產生顏 色及色調的實質連續調色盤^本發明者希望提供完整顏色 範圍之顯示表面，接著可將其切割為期望之符號、字元或 器件，以適合客戶的應用。此外，使用BAEC產生完整色 域被視為本身具有創新性。 另一配置中，紫外線發射LED可用作磷光體激發源，儘 官此一來源需要使用藍色發射磷光體。紫外線激發源之缺 點係當由塑膠材料製成時其可導致顯示表面劣化，並且需 要特別注意防止紫外線光逃逸，其對觀察者有害。使用藍 色光激發之另一優點係與紫外線相比，其對觀察者較安 全，因此，標誌可按許多不同方式點亮，例如採用藍色泛 光照明之前光。 如圖1所說明，可採用黏結劑材料將磷光體作為一或多 個個別層提供於基板5之下側。或者，可將磷光體提供為 150235.doc 13 201106310 單一層内之混合物。此外，可將磷光體層提供於基板5之 外表面，或在製造期間併入基板材料内。 參考圖2a及2b ’其分別顯示根據本發明之背光發光，，出 口 ”標誌12及穿過圖2a之標誌的線"AA"之斷面圖。整個說 明中，相同參考數字用於表示相似部件。 圖2a及2b内說明的具體實施例中，光箱2及發光顯示表 面3係矩形形狀。如同圖丨之標誌’發光顯示表面3包含透 明/半透明基板5 ’例如聚碳酸酯材料，BAEC磷光體層6及 反射顏色增強濾光器層7。標誌12採用藍色LED 4運作。圖 2a所說明之具體實施例中，藉由遮罩或模板13定義標誌所 顯示之資訊，即詞語"EXIT"。遮罩/模板包含不透明之薄 片材料，且其中已穿過遮罩之整個厚度切割/形成孔徑/窗 口 14，以定義詞語”EXIT"。或者，遮罩13可在提供不透明 遮罩的一側上包含透明材料，以便藉由遮罩之透明區域定 義所需字母、符號或器件。未顯示的另一配置中，其係所 不遮罩之反面’遮罩包含光阻擋區域，以定義任何需要之 資訊’例如其包括字元、符號或器件。採用此一配置，字 元將在彩色發光背景上呈現黑色。 參考圖3 ’其顯示根據本發明之另一具體實施例的側光 發光箭頭指示燈標誌15的分解透視圖。此具體實施例中， 將光箱2散佈並將來自LED 4之激發光8直接耦合至基板5之 一或多個邊緣内’其實質上係平坦形式，並包含透明材 料’例如聚碳酸酯。可在基板5之邊緣内提供較小凹陷/凹 痕16 ’以輔助將光8耦合至基板内。應明白，基板將用作 150235.doc 201106310 波/光導介質，同時將激發輻射擴展至波導介質之體積 上，以便其以實質均勻的方式離開基板表面。為防止標諸 15之下側的發射’並增加輸出光9之強度，在基板$之下側 上提供反射表面17，其係與發光表面相反之側面。可將未 顯示的其他反射塗層提供於基板邊緣周圍，以減小邊緣之 光茂漏。 此具體實施例中，將BAEC磷光體6及反射顏色增強遽光 器7併入乙烯薄膜。接著將乙烯薄膜（可製造成存貨物品）切 割出形狀，以定義期望字元、符號或器件（圖3之範例中為 箭頭符號），並應用於基板5 〇根據圖3之具體實施例的標 誌之特定優點係減小了標誌之總體厚度，其僅稍大於聚碳 酸酯基板5之厚度’並可包含（例如）五毫米之厚度。若需要 可從兩側檢視之標誌15，將反射表面17散佈並將另一磷光 體/反射顏色增強層提供於基板下側。 參考圖4a及4b，其顯示根據本發明之細長形式的發光標 誌18、19之斷面示意圖。圖乜之具體實施例中，透明基板 5係f狀形式，其係具有鑽孔之細長形式並由熱塑材料製 造。將磷光體6及/或反射顏色增強層7提供於管之外彎曲 表面周圍。基板製造後，將LED 4提供於基板鑽孔内。標 4' 1 8之操作實質上與先前具體實施例所說明的一樣。由於 基板係由熱塑材料製成，藉由加熱基板並在（例如）適當夾 具周圍將官彎曲成所需形式，標誌丨8可形成任何期望字 元、符號或器件之顯示器。參考圖朴，其顯示標誌19，其 中基板5係實心及細長形式。此配置中，將LED併入基板 150235.doc 201106310 材料内。與圖4a之具體實施例相同，藉由將基板5配置成 顯示期望字元等來形成標誌。 圖5&至5d說明根據本發明之另一發光標誌2〇、22，其係 細長形式並且用作光導介質。與圖乜及补之標誌相同，基 板5係配置成一形式，以顯示期望字元等。圖中，標誌 20包含透明基板5，其係桿狀形式，並且其中將光8注入桿 5之一或兩端。藉由内部反射，沿桿之長度對激發能進行 波導。圖5b顯示標誌20，並進一步在基板/顯示表面之外 表面的一部分上包含反射表面21。反射器21增加發射光在 首選方向上之強度。 圖5c中，標諸22包含管狀形式之透明基板5，其包括一 鑽孔，並且其中將光8注入管壁之一或兩端。藉由内部反 射’沿官之長度對激發能進行波導◊圖5d顯示標誌22，並 進一步在鑽孔表面的至少一部分上包含反射表面23。反射 表面增加了自標誌發射光8的強度。此外，標誌22可進— 步在基板/顯示表面之一外表面的至少一部分上包含反射 表面21 (未顯示）’以在首選方向上增加發射光之強度。 標諸18、19、20及22亦可找到作為用於發光標誌之光源 的特定應用。例如’該等標誌可用作光箱内之光源，例如 圖1之配置’其中以半透明層取代顯示表面3，以確保整個 表面上之均勻光輸出。特定優點係減小了製造標誌所需之 碟光體的數量，儘管顏色飽和度/發射光之強度會相應減 小 〇 參考圖6 ’顯示用於產生選定數字之可切換發光標誌24 150235.doc •16· 201106310 的示意圖。標誌24為背光，並具有光箱2 ,其包含可選擇 性切換的藍色LED之陣列。磷光體6及/或反射顏色增強濾 光器7係配置為覆蓋一或多個個別LED的多個區段顯示器 (此範例中係用於顯示阿拉伯數字之七個區段顯示器）之區 段。藉由活化適當LED/區段，可藉由標誌24產生期望數 子。圖7說明可切換箭頭指示標誌25，其以類似於標誌24 之方式包含個別可活化符號26、27及28。標誌25可藉由活 化相關連之激發源選擇性地顯示右（活化區域2 7、2 8)及左 (活化區域26、27)指向箭頭。 使用藍色活化發射著色劑（BAEC)建立完整調色盤 如上所述，可使用BAEC方法建立完整顏色範圍。存在 藍色活化磷光體，其在紅色、橙色、黃色及綠色顏色範圍 内發射。可將此顏色範圍内之一組磷光體最佳化，以建立 一組最終"原"磷光體顏色。為實現位於該等原色之間的色 5周需要混合兩個最近磷光體顏色。增加原色BAEC:磷光體 數目可增加色域。然而，此亦增加了成本，因此一組最佳 化之原色較佳。可使用的最少數目之原色磷光體係兩個： 紅色及與作為第三原色之藍色LED組合的綠色，其提供一 組RGB原色。 B AEC架構需要指定藍色LED之特定頻率及光發射強 度，以便發展可預測、可重製之顏色。理論上，完整顏色 空間僅需要藍色LED、以字母r表示之紅色磷光體及以字 母G表示的綠色磷光體，然而實務中，所有磷光體材料及 LED具有顏色飽和度及效率限制。若定義了藍色光之光學 150235.doc •17· 201106310 參數’例如波長及強度，在藍色及藍色/綠色顏色空間内 使用濾色片顏料及/或染料可用於增強藍色，即如圖8之 C.I.E.色度圖内所說明的顏料增強。顏料增強本身被視為 創新性。隨著顏色接近綠色，顏料增強及磷光體之混合可 用於在BAEC材料内建立最飽和之藍色/綠色色調。藍色顏 料增強提供較大飽和度及藍色顏色之色調控制。與磷光體 一樣’較佳的係選擇有限數目之藍色/藍綠色顏料作為顏 料增強原色。 如上所述’藉由藍色及紅色光之視覺混合產生紫紅色/ 紫色。對於該等顏色’可將藍色lED(可能採用顏料增強） 與紅色碟光體原色混合。藉由改變該等兩個顏色之數量及 密度，會建立紫色陰影。 以下段落說明某些可能的BAEC材料組，及其可適合的 應用。 BAEC乙稀薄膜 據估計美國有超過20,000家標誌商店。生產標誌及顯示 器之最常用方法之一係使用切割乙烯薄膜。該等薄膜使用 鑄造及壓延大量生產。術語，•透明，，或，，半透明，，用於說明該 卓薄膜，因為彩色顏料過濾穿過其的光，而”不透明"著色 劑阻擋光。例如，透明紅色玻璃紙使用"透明"紅色顏料， 並用作紅色濾光器。另一方面，紅色家庭油漆不透明。透 明衫色薄膜與白色背光一起使用，作為常用的招牌系統。 用於競爭產品線之一組透明顏色係在2〇至3〇個不同彩色薄 膜之範圍内。標誌之客戶挑選用於標誌各部分之顏色。此 150235.doc 201106310 稱為"專色"，因為各區域（字母或圖形元件）僅為使用單色 材料之單一純色。不使用混合。該等薄乙烯薄膜過軟，若 無支撐便無法使用。其具有黏性背面，因此應用於更強 固、半透明之基板。根據本發明，可建立一組BAec乙稀 薄膜’用於藍色LED背光及前光標誌。 BAEC聚碳睃酯及丙稀酸薄膜 對於更昂貴之標誌及顯示器，使用彩色聚碳酸酯或丙烯 酸薄片。從固體薄片安排出字母形狀，接著將其放入形狀 與子母類似的疋製光箱内。可針對該等應用製作一組 BAEC聚碳酸酯及/或丙烯酸薄片。除招牌外，可容易地加 工並熱成型該等塑膠薄片商品。其頻繁地用於製造傢具、 燈具、陳列櫃及其他定製產品。該複數個發明者預期在可 使用藍色LED照明的此類產品中使用BAEC聚碳酸酯及丙 稀酸面板。景;^響將係可按任何顏色製造的發光塑耀產品。 BAEC面板將允許任何使用者可藉由選擇適當BAEC材料來 製造彩色發光產品，其全部使用相同藍色L£d。 BAEC專色墨水 專色墨水通常用於商標顏色或具有特定顏色之圖形，但 一般不用於照片品質影像之重製。其可比，，四色"更亮，也 更易於用於許多應用中。可針對網版印刷、噴墨、凹版印 刷、偏移及彈性印刷發展BAEC專色墨水，而磷光體為主 之墨水可用於全部該等印刷程序中，包括喷墨印刷。由於 以BAECiH光體實現良好顏色所需的厚度及固體含量，預 計網版印刷墨水將係最有用及有效的。採用偏移、凹版印 150235.doc -19- 201106310 刷及其他低黏度、薄墨水層印刷技術，則可能無法獲得完 整、飽和之顏色空間。When the surface is backlit or glazed, the display surface may comprise a substantially flat surface; in an elongated form having a borehole, wherein at least one excitation source or a solid to elongated form is provided, wherein at least one excitation source is incorporated. The display surface can be made of plastic material, polycarbonate, thermoplastic #, glass, acrylic, polyethylene or polyoxynitride. Advantageously, the excitation source is a light-emitting diode (LED). The use of led is cleaner in the environment' Because it eliminates the need for a base lamp, a preferred system is operable to emit light at a wavelength in the range of 35 G (ultraviolet) to 5 (9) nm (blue). LEDs provide increased operational life, (10) ❹ hours, which is fifteen times that of a conventional light source, thus reducing maintenance. In a preferred embodiment, the LED is operable to emit a wave having a wavelength in the range of up to nm, that is, blue light. Using blue light The advantage of the excitation source is that a combination of only red and yellow hair (four) light bodies can be used to produce a color wheel of a selected color. The present invention can be expected to be of any type and can include the following: name tag, wide a sign, an emergency indicator, a traffic sign, a road sign: or a direction indicator, the illuminating display of the illuminating sign according to the second aspect of the invention, provided for the first side surface according to the invention, wherein The display surface can be selected to provide 150235.doc 201106310 for different selected colors of light emitted from the same radiation source. The use of reflective color filters to provide reflective color enhancement is considered to be inherently more innovative, and thus is in accordance with the third aspect of the present invention. The illuminating sign comprises: a luminescent display surface comprising at least one phosphor; at least one radiant source operative to generate and radiate excitation energy of a selected wavelength range, the source being configured to illuminate the display surface with excitation energy, The phosphor emits radiation of a selected color; and a filter that is substantially transparent to the light emitted by the display surface and filters other colors of the light. Preferably, the color filter is placed in front of the display surface 'The light reflected by the filter appears to be substantially the same color as the light emitted by the display surface. According to the fourth aspect of the invention The light source includes: a light emitting surface comprising at least one phosphor; and at least one radiation source operative to generate and radiate excitation energy for a selected range of wavelengths, the radiation source configured to illuminate the light emitting surface with excitation energy So that the phosphor emits radiation of a selected color' and wherein the luminescent surface can be selected to provide different selected colors of light emitted from the same source. One advantage of the source according to the invention is that it reduces the desired phosphor The at least one phosphor may be provided on at least a portion of the inner or outer surface of the illuminating surface or incorporated into at least a portion of the illuminating surface. According to another aspect, the illuminating sign comprises: a luminescent display surface and a A light source of four aspects. Preferably, the display surface further comprises a reflective color enhancement 'and includes a filter that is substantially transparent to the light emitted by the surface and filters other colors of the light for the filter to emit The light appears to be substantially the same color as the light emitted by the display surface. 150235.doc 201106310 [Embodiment] Referring to Fig. 1, there is shown an exploded perspective view of a backlight illumination i according to the present invention. In the illustrated example, the logo is prepared to produce - word = "A" and includes a light box 2 that is configured in the shape of a letter "A". The light box can be fabricated from sheet metal, molded from a plastic material, or from any other suitable material. Preferably, the inner surface of the light box includes a light reflecting surface to reflect light toward one of the light emitting display surfaces 3. A plurality of light emitting diodes (LEDs) 4 are provided within the light box 2, preferably blue LEDs that emit blue light in the wavelength range from 41 Å to nm. The illuminating surface 3 is generally in a flat form and is configured to define the shape of the letter "A" The display surface 3 comprises a transparent/translucent substrate 5, such as, for example, a polycarbonate 'polyethylene, acrylic or glass Sheet. A layer of phosphor material 6, a photoluminescent material, is provided on the lower surface that faces the surface of the LED of substrate 5. Any suitable phosphor 6 can be used, for example, such as n-decanoate, citrate And an aluminate material as long as it can be excited by the radiation emitted by the LED 4. Since the phosphorescent system emits and activates in response to the blue light in a preferred embodiment, the scale is referred to herein as the blue activated emission color. (BAEC) Phosphor. On one of the outer surfaces of the substrate 5, a color enhancement filter layer 7 is provided to enhance the color performance of the logo under daylight conditions. In operation, the LED emitted light 8 illuminates the phosphor layer 6, thereby Resulting in the excitation of the phosphor 'which emits light of a different color, the light passes through the substrate 5 and the filter 7' to produce a light emission 9 from a display surface of a selected color. The color enhancement filter 7 is selected to The color of the light 9 emitted from the display is transparent, 150235.doc 201106310 and filters other colors of the light. When the display surface is subjected to the light i, the color enhancement filter 7 will only reflect the light 1 丨, its color essence The color corresponding to the selected color of the light 9 emitted by the mark provides an enhanced color performance. This is referred to as reflective color enhancement' and is considered to be inherently innovative. The color enhancement filter 7 may comprise colored pigments and/or A color dye, for example, is incorporated into a vinyl film or mixed with a binder material and provided as a layer on the substrate 5. As is known, 'color pigments are insoluble and can be organic, J. 〇Ciba's RED254, a DIKETO-PYRR〇L〇-PYRROLE/f compound or inorganic substance', for example, such as iron oxide, and the color dye can be lubricated. Based on color-emitting fillers' specific blue Activated Emission Colorant (BAEC) 'The logo of the present invention provides substantially improved color saturation and efficiency compared to well-known standard keys based on color transmission (color absorber) filters, see Table 1. Color Input Power (W) Power Saving Percentage BAEC Phosphor Fluorescent Filter Color Red 3.71 8.00 53.6% Green 1.79 8.00 77.6% Yellow 4.31 8.00 46.2% Table 1. Input Power vs. Output Color, for BAEC in accordance with the Invention The light mark and the well-known mark using the color filter and the fluorescent lamp produce the same light output intensity. The blue light is combined with the red and green light emitting phosphor to provide a substantially continuous color/tone palette. Produced by a display surface from a monochromatic excitation source, preferably an inexpensive blue LED. For example, the blue light can be generated by the 150235.doc • 12. 201106310 LED alone, without the need for a phosphor. Red light is produced by the thicker red phosphor layer and green light is produced by the thicker green phosphor layer. Earlier in this patent application, a thicker layer means that the phosphor has a sufficient amount/concentration to absorb all of the incident excitation radiation. The yellow phosphor can be produced by a green phosphor that is insufficient to absorb all of the blue light impinging on the phosphor, in such a way that the emitted light 9 is a combination of blue and green light that appears yellow to the eye. In a similar manner, a red phosphor that is insufficient to absorb all of the blue light can be used to produce a magenta/purple light that combines the blue light with the emitted yellow light to provide a reddish-emitting light 9 to the eye. White light can be produced by a combination of red and yellow phosphors. It will be appreciated that a substantially continuous palette of colors and shades can be produced by appropriate combination of phosphor material combinations and/or quantities. The inventors wish to provide a display surface of a complete range of colors which can then be cut into desired symbols, Characters or devices to suit the customer's application. In addition, the use of BAEC to produce a complete color gamut is considered to be inherently innovative. In another configuration, the UV-emitting LED can be used as a phosphor excitation source, and it is desirable to use a blue-emitting phosphor as desired. The disadvantage of the ultraviolet excitation source is that when it is made of a plastic material, it can cause deterioration of the display surface, and special care must be taken to prevent ultraviolet light from escaping, which is harmful to the observer. Another advantage of using blue light excitation is that it is safer to the viewer than ultraviolet light, so the logo can be illuminated in many different ways, such as using blue floodlight to illuminate the previous light. As illustrated in Figure 1, the phosphor can be provided as a one or more individual layers on the underside of the substrate 5 using a binder material. Alternatively, the phosphor can be provided as a mixture of 150235.doc 13 201106310 in a single layer. Additionally, the phosphor layer can be provided on the outer surface of the substrate 5 or incorporated into the substrate material during fabrication. Referring to Figures 2a and 2b, which respectively show a backlight illumination according to the present invention, an exit "flag 12" and a cross-section through the line "AA" of the logo of Figure 2a. Throughout the description, the same reference numerals are used to indicate similar In the specific embodiment illustrated in Figures 2a and 2b, the light box 2 and the light-emitting display surface 3 are rectangular in shape. Like the logo of the figure 'the light-emitting display surface 3 comprises a transparent/translucent substrate 5' such as a polycarbonate material, The BAEC phosphor layer 6 and the reflective color enhancement filter layer 7. The logo 12 operates with a blue LED 4. In the specific embodiment illustrated in Figure 2a, the information displayed by the logo is defined by the mask or template 13, ie the word " The EXIT" mask/template contains an opaque sheet material, and the aperture/window 14 has been cut/formed through the entire thickness of the mask to define the word "EXIT". Alternatively, the mask 13 may comprise a transparent material on the side providing the opaque mask to define the desired letter, symbol or device by the transparent area of the mask. In another configuration not shown, the opposite side of the mask is 'masked to include a light blocking area to define any desired information' such as including characters, symbols or devices. With this configuration, the characters will appear black on a colored luminescent background. Referring to Figure 3, there is shown an exploded perspective view of a side-lighting arrow indicator mark 15 in accordance with another embodiment of the present invention. In this particular embodiment, the light box 2 is spread and the excitation light 8 from the LED 4 is directly coupled into one or more of the edges of the substrate 5 'which is substantially in a flat form and comprises a transparent material such as polycarbonate. Small depressions/recesses 16' can be provided within the edges of the substrate 5 to assist in coupling the light 8 into the substrate. It will be appreciated that the substrate will act as a 150235.doc 201106310 wave/photoconductive medium while extending the excitation radiation to the volume of the waveguide medium such that it exits the substrate surface in a substantially uniform manner. In order to prevent the emission of the lower side of the label 15 and increase the intensity of the output light 9, a reflective surface 17 is provided on the lower side of the substrate $, which is the side opposite to the light emitting surface. Other reflective coatings, not shown, may be provided around the edges of the substrate to reduce light leakage at the edges. In this embodiment, the BAEC phosphor 6 and the reflective color enhancement calender 7 are incorporated into a vinyl film. The vinyl film (which can be fabricated into an inventory item) is then cut into a shape to define the desired character, symbol or device (arrow symbol in the example of Figure 3) and applied to the substrate 5 标志 the logo according to the embodiment of Figure 3 A particular advantage is that the overall thickness of the logo is reduced, which is only slightly greater than the thickness of the polycarbonate substrate 5' and can include, for example, a thickness of five millimeters. If desired, the reflective surface 17 can be spread from both sides and the other phosphor/reflective color enhancement layer can be provided on the underside of the substrate. Referring to Figures 4a and 4b, there are shown schematic cross-sectional views of illuminating marks 18, 19 in an elongated form in accordance with the present invention. In the specific embodiment of the Figure, the transparent substrate 5 is in the form of an f which has an elongated form of a drilled hole and is made of a thermoplastic material. Phosphor 6 and/or reflective color enhancement layer 7 are provided around the curved surface outside the tube. After the substrate is fabricated, the LED 4 is provided in the substrate bore. The operation of the standard 4' 18 is substantially the same as that described in the previous specific embodiment. Since the substrate is made of a thermoplastic material, the marker 8 can form a display of any desired character, symbol or device by heating the substrate and bending the official into a desired form around, for example, a suitable clamp. Referring to Figure Pak, it shows a logo 19 in which the substrate 5 is in a solid and elongated form. In this configuration, the LEDs are incorporated into the substrate 150235.doc 201106310 material. As in the specific embodiment of Fig. 4a, the mark is formed by arranging the substrate 5 to display a desired character or the like. Figures 5 & 5d illustrate another illuminating indicia 2, 22 according to the invention in an elongated form and used as a light guiding medium. Like the map and the complementary flag, the substrate 5 is configured in a form to display desired characters and the like. In the figure, the mark 20 comprises a transparent substrate 5 in the form of a rod, and in which light 8 is injected into one or both ends of the rod 5. The excitation energy is waveguided along the length of the rod by internal reflection. Figure 5b shows the indicia 20 and further includes a reflective surface 21 on a portion of the outer surface of the substrate/display surface. The reflector 21 increases the intensity of the emitted light in the preferred direction. In Figure 5c, reference numeral 22 comprises a transparent substrate 5 in the form of a tube comprising a bore and wherein light 8 is injected into one or both ends of the tube wall. The excitation energy is waveguided along the length of the official by internal reflection. Figure 5d shows the indicia 22 and further includes a reflective surface 23 on at least a portion of the surface of the borehole. The reflective surface increases the intensity of the self-marking emitted light 8. Additionally, the indicia 22 can further include a reflective surface 21 (not shown) on at least a portion of one of the outer surfaces of the substrate/display surface to increase the intensity of the emitted light in a preferred direction. Targets 18, 19, 20 and 22 can also be found as specific applications for the light source used to illuminate the sign. For example, the markers can be used as a light source in a light box, such as the configuration of Figure 1 in which the display surface 3 is replaced with a translucent layer to ensure uniform light output across the surface. A particular advantage is that the number of discs required to make the logo is reduced, although the intensity of the color saturation/emission light is correspondingly reduced. Referring to Figure 6 'shows the switchable illumination flag used to generate the selected number 24 150235.doc • Schematic diagram of 16·201106310. The logo 24 is a backlight and has a light box 2 that contains an array of selectively switchable blue LEDs. Phosphor 6 and/or reflective color enhancement filter 7 is configured to cover a plurality of segment displays of one or more individual LEDs (in this example, seven segment displays for displaying Arabic numerals). The desired number can be generated by the flag 24 by activating the appropriate LED/segment. FIG. 7 illustrates a switchable arrow indicator 25 that includes individual activatable symbols 26, 27, and 28 in a manner similar to the indicia 24. The marker 25 can selectively display the right (activated region 27, 28) and left (activated region 26, 27) pointing arrows by activating the associated excitation source. Creating a Complete Color Palette Using Blue Activated Emitter Colorant (BAEC) As described above, the BAEC method can be used to establish a complete color range. There is a blue activating phosphor that emits in the red, orange, yellow, and green color ranges. One set of phosphors within this color range can be optimized to create a set of final "original" phosphor colors. To achieve a color between the primary colors, it is necessary to mix the two nearest phosphor colors for 5 weeks. Increase the primary color BAEC: The number of phosphors can increase the color gamut. However, this also increases the cost, so a set of optimized primary colors is preferred. The minimum number of primary color phosphorescent systems that can be used are two: red and green in combination with a blue LED as the third primary color, which provides a set of RGB primary colors. The B AEC architecture requires the specific frequency and light emission intensity of the blue LED to be specified in order to develop predictable, reproducible colors. In theory, the full color space requires only a blue LED, a red phosphor represented by the letter r, and a green phosphor represented by the letter G. However, in practice, all phosphor materials and LEDs have color saturation and efficiency limitations. If blue light is defined 150235.doc •17· 201106310 Parameter 'eg wavelength and intensity, use color filter pigments and/or dyes in the blue and blue/green color space to enhance blue, ie as shown The pigment enhancement described in the CIE chromaticity diagram of 8. Pigment enhancement itself is considered innovative. As the color approaches green, pigment enhancement and phosphor blending can be used to create the most saturated blue/green hue within the BAEC material. Blue pigment enhancement provides greater saturation and blue color tone control. As with the phosphor, the preferred system selects a limited number of blue/cyan pigments as the pigment to enhance the primary color. As described above, 'mauve/purple is produced by visual mixing of blue and red light. For these colors 'blue lED (possibly with pigment enhancement) can be mixed with the red disc primaries. By changing the number and density of the two colors, a purple shadow is created. The following paragraphs describe some of the possible BAEC material groups and their suitable applications. BAEC Ethylene Films It is estimated that there are more than 20,000 sign stores in the United States. One of the most common methods of producing logos and displays is the use of cut vinyl films. These films are mass produced using casting and calendering. The term, • transparent, or,, translucent, is used to describe the film because color pigments filter light passing through it, while “opaque” colorants block light. For example, transparent red cellophane uses "transparent" Red pigment, and used as a red filter. On the other hand, the red home paint is opaque. The transparent shirt color film is used together with the white backlight as a commonly used signboard system. One of the transparent color colors used in the competitive product line is 2〇 Within the range of 3 different colored films. The customer of the logo is selected to mark the color of each part. This 150235.doc 201106310 is called "special color" because each area (letter or graphic element) is only used A single solid color of color material. No mixing is used. These thin vinyl films are too soft and cannot be used without support. They have a viscous back surface and are therefore applied to a stronger, translucent substrate. According to the present invention, a set can be established BAec Ethylene Film 'for blue LED backlight and front light logo. BAEC Polycarbonate and Acrylic Film for more expensive signs and displays, use color Polycarbonate or acrylic flakes. The letter shape is arranged from the solid flakes and then placed in a tantalum light box similar in shape to the mother. A set of BAEC polycarbonate and/or acrylic flakes can be made for such applications. In addition to the signboard, these plastic sheet products can be easily processed and thermoformed. They are frequently used in the manufacture of furniture, lamps, showcases and other customized products. The inventors expect this to be possible with blue LED lighting. BAEC polycarbonate and acrylic panels are used in the product category. The luminaire will be a luminescent product that can be made in any color. The BAEC panel will allow any user to fabricate a color luminescent product by selecting the appropriate BAEC material. , all use the same blue L £ d. BAEC spot color ink spot color ink is usually used for trademark color or graphics with specific colors, but generally not used for photo quality image reproduction. It is comparable, four colors " Bright, and easier to use in many applications. Develops BAEC spot color inks for screen printing, inkjet, gravure, offset and flexographic printing, while phosphor-based inks Can be used in all of these printing processes, including inkjet printing. Due to the thickness and solids content required to achieve good color with BAECiH light, screen printing inks are expected to be most useful and effective. Offset, gravure printing 150235 .doc -19- 201106310 Brushes and other low-viscosity, thin ink-layer printing techniques may not provide a complete, saturated color space.
BAEC四色墨水-加色RGB墨水對減色CMYK 四色需要一組原色墨水。對於傳統減色印刷，此顏色空 間係CMYK(青色、深紅色、黃色及黑色）。如上所述，傳 統顏料係減色，而各顏色墨水用作透明濾色片。由於 BAEC四色墨水會產生光，其作用更似CRT或lcd顯示 器，即使用加色理論。加色理論中，原色係RGB(紅色、 綠色及藍色）。 眾所周知’在顏色重製中，可對顏色空間添加額外"原 色"’產生改良的顏色品質。例如，本技術中熟知的 Pantone系統支援稱為"Hexachrome"的六色四色系統。其係 在與標準CMYK墨水相同的減色原理上工作，但該等額外 純色墨水取代用於特定顏色區域之四原色的混合，其中混 合具有減小之飽和度。 理論上’一組BAEC墨水可與紅色及綠色墨水一樣簡 單，以建立基本RGB顏色空間。使用半色調印刷及其他印 刷圖案化的§玄等顏色之混合與已熟知並用於傳統四色印刷 的技術相似。預計更多原色將用於大多數BAEC四色墨水 系統内。藍色及藍色/綠色内之顏料增強墨水的組合將與 選定BAEC填光體墨水組合，以建立可用於四色印刷的原 色墨水系列。 BAEC顏色映射 顏色映射用於BAEC顏色系統之開發。顏色映射内之第 I50235.doc •20· 201106310 一步驟係建立用於各原色之密度顏色映射。隨著磷光體 (或增強顏料）之密度增加，透射的未改變藍色光之數量減 小。此導致發射光的顏色從藍色LED色調向原色色調偏 移。然而隨著密度增加，色調偏移減小，效率開始下降， 因為原色材料之密度變得過厚並截獲光。 按兩種方式使用密度映射。首先，隨著色調偏移，建立 不同顏色。藉由保存用於各原色之每一密度值的顏色測量 值，決定可用顏色表。密度顏色映射之第二及同樣重要的 用途係在發生效率損失前找到用於實現純原色之最佳負 載。 密度映射後，最佳密度設定下，將完成相鄰原色之混合 亚進行顏色取樣，以建立連續顏色空間。從綠色至紅色將 係相鄰彩色磷光體之混合。從綠色/藍色至藍色將係綠色 科光體與藍色增強顏料之混合。從藍色至紅色（紫色）將使 用紅色碟光體與藍色之混合。一旦完成全部該等混合之取 樣，則建立顏色查找表資料庫。此表接著可用於找到最佳 顏色混合配方，以建立任何顏色。 使用反射顏色層之反射顏色增強 在招牌應用中使用磷光體的挑戰之一係在白色光（日光） 内活化時以及採用發射模式内之藍色LED活化時其具有不 同外觀。此係由於磷光體除發射目標顏色外，會反射許多 白色光。反射模式中，許多磷光體在降低的顏色飽和度下 呈現”褪色”’通常與發射模式相比存在顏色偏移。藍色激 發磷光體亦從白色光選擇性地吸收藍色光’從而在普通白 150235.doc •21· 201106310 色室内光或日光中看似彩色β 對於室外招牌等應用，重要的係 重要的係標誌之反射顏色及發射BAEC Four-Color Ink - Additive RGB Ink To reduce color CMYK Four colors require a set of primary inks. For traditional subtractive printing, this color space is CMYK (cyan, magenta, yellow, and black). As described above, conventional pigments are reduced in color, and each color ink is used as a transparent color filter. Since BAEC four-color inks produce light, they act more like CRT or lcd displays, using additive color theory. In the additive color theory, the primary colors are RGB (red, green, and blue). It is well known that in the color reproduction, an extra "primary color" can be added to the color space to produce improved color quality. For example, the Pantone system, which is well known in the art, supports a six color four color system called "Hexachrome". It works on the same subtractive principle as standard CMYK inks, but these additional solid inks replace the blend of the four primary colors used for a particular color region, where the blend has reduced saturation. In theory, a set of BAEC inks can be as simple as red and green inks to create a basic RGB color space. The use of halftone printing and other printing patterns to blend colors such as Xuanxuan is similar to techniques well known and used in conventional four-color printing. More primary colors are expected to be used in most BAEC four-color ink systems. The combination of blue and blue/green pigment-enhanced inks will be combined with the selected BAEC fill-in ink to create a range of primary inks for four-color printing. BAEC color mapping Color mapping is used for the development of BAEC color systems. The first in the color map I50235.doc •20· 201106310 One step is to establish a density color mapping for each primary color. As the density of the phosphor (or reinforcing pigment) increases, the amount of transmitted unaltered blue light decreases. This causes the color of the emitted light to shift from the blue LED hue to the primary hue. However, as the density increases, the hue shift decreases and the efficiency begins to decrease because the density of the primary color material becomes too thick and intercepts the light. Use density mapping in two ways. First, as the hue shifts, different colors are created. The available color table is determined by saving the color measurement values for each density value of each primary color. The second and equally important use of density color mapping is to find the best load for achieving a pure primary color before loss of efficiency occurs. After density mapping, the optimal density setting will complete the color mixing of adjacent sub-colors to create a continuous color space. From green to red will be a mixture of adjacent color phosphors. From green/blue to blue, it will be a blend of green and blue reinforced pigments. From blue to red (purple) you will use a mixture of red and blue. Once all of the mixed samples have been completed, a color lookup table database is created. This table can then be used to find the best color mixing recipe to create any color. Reflective color enhancement using a reflective color layer One of the challenges of using phosphors in signage applications is that they have different appearance when activated in white light (daylight) and when activated by blue LEDs in the emission mode. This is because the phosphor reflects a lot of white light in addition to the target color. In the reflective mode, many phosphors exhibit a "fading" at reduced color saturation, which typically has a color shift compared to the emission mode. The blue-excited phosphor also selectively absorbs blue light from white light' and thus appears to be colored in ordinary white 150235.doc •21· 201106310 color indoor light or sunlight. For outdoor signage applications, important important signs are important Reflected color and emission
反射顏色增強"。採用反 射顏色增強’ I自磷光體之反射光的頻譜回應可比從相同 磷光體表面反射之發射光。反射狀態中，發射光之期望頻 籲 率，但反射光之額外波長，從而在最終反射顏色内建立顏 色偏移及"褪色"外觀》 藉由在磷光體層6前方添加透明顏色增強濾光器層7，例 如其包含彩色顏料，可吸收不需要的光頻率，僅留下目標 顏色。圖9c顯示用於顏色增強層之吸收曲線。藉由使用此 反射顏色增強技術，可建立在發射模式以及反射模式（曰 光）中呈現相同顏色的BAEC磷光體層，參見圖9d。使用顏 色增強濾光器本身被視為具有創新性。 籲 為避免效率損失，必須注意將顏色增強濾光器放置於彩 色磷光體前方。此係由於顏色增強濾光器層將頻率地吸收 活化磷光體之藍色LED光。若顏色增強濾光器層7位於彩 色磷光體與藍色LED光源之間，由於藍色光之吸收，會存 在效率損失。為此原因，未將顏色增強顏料混合至磷光體 内，而係作為碌光體前方之分離層來提供。應明白，使用 增強層亦需要顯示器係背光型’以便點亮磷光體時不會妨 150235.doc .22- 201106310 礙藍色LED。藉由BAEC層轉換至目標彩色光後，則顏色 增強層不會明顯影響顏色。事實上，其亦可增加發射模式 内之飽和度。 建立反射白色光 許多標誌中，需要反射白色。白色發射LED係熟知的， 包含併入黃色填光體之藍色LED，而鱗光體之厚度仍允許 某些藍色光通過磷光體。來自活化磷光體之黃色光及通過 的LED藍色光之和建立最终平衡白色。 BAEC材料以相似方式建立白色，但黃色磷光體將位於 顯不表面遠端。然而，反射模式中，該等BAEC白色面板 將呈現黃色。為校正此色調問題，使用包含藍色顏料之薄 顏色增強層。此對反射模式内之最終面板性能具有少量的 效率衫響。使用者必須決定反射模式内之平衡白色是否值 得額外過濾及發射模式内之少量光損失。此外，光擴散層 可用於建立平衡反射白色光。黃色磷光體（例如YAG:Ce)已 反射白色/黃色光。若在磷光體層前方提供光擴散面板（其 通常係在面板設計中完成），可藉由擴散面板反射額外白 色光’從而減少藍色校正需要。 用以改善夜間性能及顏色品質之發射顏色 頂部具有透明彩色材料（如透明乙烯及丙烯酸薄片）之傳 統白色背光標誌提供可靠的低成本顏色，然而增加亮度導 致白色背光之滲出。此白色光添加導致顏色飽和度之偏 移’即對於紅色’深紅色偏移成褪色的發白（粉紅色）紅 色。依據本發明之一方面’使用磷光體為主之招牌消耗品 150235.doc •23· 201106310 (滾製或薄片商品）提供增加之亮度，而無顏色飽和度及品 質之劣化。根據本發明，隨著藍色背光功率增加，只要前 方材料之磷光體數量足夠高，檢視者可看見越來越亮的單 色。 使用增強顏色層之發射顏色改良 迄今已假定BAEC磷光體之混合可用於針對完整顏色空 間建立期望顏色飽和度。然而，許多磷光體對高度飽和顏 色具有比期望中更廣泛之光發射頻譜。另外使用磷光體完 全消除LED之全部藍色光洩漏可需要極厚磷光體層，其可 能低效或不合需要。 按類似於使用顏色增強層實現改良之反射顏色的方式， 相同原理亦可用於增強發射顏色，參見圖1〇。儘管磷光體 可在目標顏色頻率内建立足夠的光，對於高顏色飽和度可 具有比期望中更廣泛之發射曲線及/或藍色光仍可通過磷 光體》兩者均可藉由發射磷光體層前方之濾色片加以校 正。 使用BAEC顏色墨水、白色及黑色層產生照片影像及灰階 BAEC原色可用於建立全部純色之完全飽和色域（二維顏 色空間）。由於全部顏色共享相同均勻背光，顏色之強度 全部相同，其具有將藍色LED光轉換為新目標顏色之功 能。此類型之飽和顏色對於大多數招牌、專色圖形、燈具 及建築應用符合需要。然而，不可能降低個別顏色之亮 度，因為對於任何個別顏色減小磷光體數量將導致更多藍 色光通過並造成藍色偏移。 150235.doc •24- 201106310 然而，在照片及連續色調圖形中，需要將白色及黑色混 合成純色，以控制亮度及飽和度。藉由將白色及黑色混合 成飽和顏色，即使全部顏色共享固定藍色lED光源，也可 控制飽和度及亮度。此白色及黑色之額外混合將提供照片 影像之印刷（完整3維顏色空間）。 給顏色添加白色可藉由以下方式完成： ”以特定數量之黃色磷光體取代特定面積内之某些彩色 BAEC磷光體，以及 2)充分減小該面積内之磷光體密度，以便來自LED之某 些藍色光可滲出（黃色加藍色產生白色）。 如針對顏色映射的先前段落中所述，應用1}及2)之數量 需要進行顏色映射。 為控制亮度及暗度，添加不透明黑色層。黑色層建立濾 光器，其控制通過的光數量。此允許灰階印刷並控制顏色 亮度。黑色墨水係不透明的（通常基於碳顏料），結果係該 面積内的均勻光吸收。若使用顏色增強，可結合顏色增強 層印刷黑色層，以減小成本及複雜性。 透過各種顏色與白色及黑色之混合的顏色取樣及映射， 可建立BAEC顏色系統之完整3維顏色映射。採用原色與白 色及黑色之完整顏色映射建立灰階，可使用BAEC墨水實 現兀整照片顏色空間及印刷照片。結果係回應於藍色 照明之發光照片影像。 上述顏色分離顯示黑色層在建立印刷顏色影像中的重要 性。此外，可看出各顏色層内亦使用多少白色。添加白色 150235.doc -25- 201106310 及黑色係建立用於可印刷baec磷光體之照片顏色空間所 必需的。採用BAEC顏色，將原色從減色CMY(洋紅色、深 紅色及黃色）改變至加色RGB，但相同白色及黑色原理適 用於任一顏色系統。 用於改善磷光體效率之平面點圖案 與透明CMY墨水不同，若BAEC磷光體及著色劑如傳統 照片印刷一樣直接彼此重疊地分層，其將被壓緊，參見圖 1 lb °此係由於最接近藍色LED光源之磷光體將吸收藍色 光並將其轉換為發射顏色。若將下一磷光體分層於先前磷 光體頂部上，其不會同樣由藍色光活化，並且會吸收第一 碟光體層建立的彩色光。若使用藍色增強著色劑並將磷光 體置於其頂部，表面上之磷光體將吸收並改變校正之藍色 光’使校正效率降低。在baec材料内重疊顏色層導致效 率減小及顏色混合更困難。 此問題之解決方案係建立點圖案，其中磷光體29、30在 相同平面上實質上彼此相鄰，參見圖丨la。平面印刷圖案 中’材料獨立地作用’並具有最大效率。並置顏色之顏色 混合在眼睛内完成，類似於電視螢幕之RGB像素。此系統 之關鍵係確保彩色點29、30足夠小，以在眼睛内具有充分 顏色混合。印刷程序之對齊亦很重要。 墨水差動濕化用於在基板上建立墨水之自然分離。例 如，在上述情形中，若黃色墨水以水為主而紅色墨水以油 為主，則其會相互規避，並傾向於濕化基板，以及避免彼 此重疊。墨水表面能量應彼此匹配，以便其彼此疏離，但 150235.doc -26· 201106310 仍合理地親近基板。 應明白，本文所說明之各種標誌共享下列特徵： •使用單一激發源，較佳的係藍色LED之單色，，作為光 源（410至48〇11111範圍）。使用單一類型之藍色1：^£)取代 了白色背光或不同顏色之光源的需要。 •與磷光體修改顏色LED不同，該等藍色LED不需要磷 光體修改。藉由位於，，遠端"之BAEC(藍色活化發射著 色劑）材料’即磷光體·，建立除藍色外的所有彩色光。 ® BAEC材料不用於修改實體光源，因為未將其印刷或鑄 造於LED内，未將其放置於紫外線螢光管之管内部， 或以任何其他方式用於直接修改光源。相反，將其印 刷、鑄造或以其他方式圖案化至遠端顯示表面上。在 背光面板情形中’包含發射BAEC之彩色圖形位於前顯 示面板上，或直接將其鑄造於前面板之塑膠或其他聚 合物薄膜内。包含BAEC之器件可藉由藍色LED實施背 光或前光。 • BAEC係提供於顏色材料組内。較佳的係，針對各類型 之目標應用，在完整色域内提供一組BAEC材料。 BAEC材料組係設計成提供完整顏色組，以便使用者可 使用一組BAEC產品設計各種彩色產品。為建立顏色 組’將不同磷光體及顏料混合並顏色映射，以建立具 有相似藍色回應及良好顏色飽和度的產品之完整調色 盤。可按不同形式因素提供包含BAEC粉末之產品組， 包括但不限於撓性乙烯薄膜、剛性聚碳酸酯薄片及網 150235.doc -27- 201106310 版印刷墨水。預先製造之BAEC材料組使使用者可簡單 地藉由選擇目標顏色BAEC材料（如切割乙稀標諸情形 中）或藉由以BAEC墨水印刷（如在網版印刷標誌或顯示 器中）而自訂發光彩色產品及圖形顯示器之設計。此系 統使使用者可僅使用一種類型之標準光源（藍色LED)及 BAEC材料建立廣泛的彩色發光器件及顯示器。 • BAEC將組合彩色顏料與彩色構光體，以實現藍色/綠 色發光材料。破光體用於建立從紅色經綠色至黃色的 全部顏色。由於目標顏色接近藍色，磷光體不需要產 生藍色光’因為LED已經建立該等頻率内之光。在 LED產生藍色光之彩色空間區域内，可使用濾色片顏 料（稱為顏料增強）。由於藍色LED有效，在BAEC内使 用彩色顏料主要係為了 ”調諧”藍色之色調。藍色/綠色 頻s普内之顏色亦需要綠色光，以便藍色顏料與綠色磷 光體之混合可用於建立藍色/綠色空間内之顏色。 •可應用相同BAEC鱗光體方法來與紫外線光源一起工 作。使用紫外線光，藍色重製需要藍色發射磷光體。 然而’許多應用中，使用藍色LED取代紫外線更符合 需要，因為紫外線具有對有機材料更具破壞性的缺 點。同樣，曝露於紫外光可損害視力，因為紫外線系 統通常需要輕質緊密，以保護觀察者。另外，藍色 LED充足、低成本且很可靠。在41〇至47〇 ηηι範圍内之 紐波長藍色LED較佳，因為其在激發磷光體時更有 效，並且會提供更純的藍色光，其需要較少彩色顏料 150235.doc -28- 201106310 增強。此外，由於藍色LED不會損害眼睛，BAEC發光 材料不需要加以封閉或緊密接觸藍色LED。使用BAEC 架構之器件可係開放的，因此藍色LED聚光燈可用於 從刖方或後方照党BAEC顯示器，並會從兩端發射目標 影像（假定黑色周圍環境）。 熟習技術人士應明白’可對所揭示的標誌/顯示器配置 作出修改’而不脫離本發明之範疇。例如，雖然示範性實 施方案係針對固定標諸顯示器，本發明者預期本發明亦可 應用於其他應用，其中需要在較大面積上產生選定顏色之 光’例如重點照明及建築照明應用。 【圖式簡單說明】 為了更佳地理解本發明’已僅藉由範例方式並參考附圖 說明了本發明之具體實施例，其中： 圖1係根據本發明之背光發光標誌的分解透視圖； 圖2a係根據本發明之背光發光出口標誌的分解透視圖； 圖2b係穿過圖2a之標諸的線"AA”之斷面圖； 圖3係根據本發明之側光發光箭頭指示燈標誌的分解透 視圖； 圖4a及4b係根據本發明之發光標誌的示意性斷面圖； 圖5a至5d係光導發光標誌之其他具體實施例的示意圖； 圖6係用於產生選定數字之可切換發光標誌的示意圖； 圖7係可切換前頭指不標該的圖式； 圖8係說明顏料增強效應之c.I.E.色度圖； 圖9a至9d係強度對波長之曲線圖，其用於（a)發射模式内 150235.doc •29· 201106310 之藍色活化紅色磷光體，（b)反射日光（白色光）之反射模式 内的藍色活化紅色磷光體，（c)用於顏色增強層之吸收曲 線，以及（d)包括反射顏色校正之反射模式内的藍色活化紅 色磷光體； 圖10係用於未校正及已增強之顏色發射模式内的藍色活 化紅色磷光體及顏色增強濾光器特徵之強度對波長之曲線 圖；以及 圖11a及lib係（a)根據本發明之碳光體點之圖案及（匕）傳 統印刷方案内用於產生照片影像之墨點之佈局的示意圖。 【主要元件符號說明】 1 發光標誌 2 光箱 3 發光顯示表面 4 發光二極體（LED)/輻射源 5 基板/發光顯示表面 6 磷光體 7 顏色增強濾光器 8 光/激發能 9 光 10 曰光 11 光 12 發光標誌 13 遮罩或模板 14 孔徑/窗口 150235.doc 201106310 15 發光標誌 16 凹陷/凹痕 17 反射表面/反射器 18 發光標誌 19 發光標誌 20 發光標誌 21 反射表面/反射器 22 發光標誌 23 反射表面/反射器 24 發光標誌 25 發光標誌 26 個別可活化符號 27 個別可活化符號 28 個別可活化符號 29 磷光體/彩色點 30 磷光體/彩色點 150235.doc -31-Reflective color enhancement ". The spectral response of the reflected light from the phosphor using the reflective color enhancement is comparable to the emitted light reflected from the surface of the same phosphor. In the reflected state, the desired frequency of the emitted light is emitted, but the extra wavelength of the reflected light is used to establish a color shift and "fade" in the final reflected color by adding a transparent color enhancement filter in front of the phosphor layer 6. The layer 7, for example, which contains a color pigment, absorbs unwanted light frequencies, leaving only the target color. Figure 9c shows the absorption curve for the color enhancement layer. By using this reflection color enhancement technique, a BAEC phosphor layer that exhibits the same color in both the emission mode and the reflection mode (曰 light) can be established, see Figure 9d. The use of color enhancement filters is considered innovative in itself. To avoid loss of efficiency, care must be taken to place the color enhancement filter in front of the color phosphor. This is because the color enhancing filter layer will absorb the blue LED light of the activating phosphor in frequency. If the color enhancement filter layer 7 is located between the color phosphor and the blue LED source, there is a loss of efficiency due to absorption of blue light. For this reason, the color-enhancing pigment is not mixed into the phosphor, but is provided as a separation layer in front of the phosphor. It should be understood that the use of the enhancement layer also requires the display to be backlit ‘in order to illuminate the phosphor when it is not possible. 150235.doc .22- 201106310 hamper blue LED. After the BAEC layer is converted to the target colored light, the color enhancement layer does not significantly affect the color. In fact, it also increases the saturation within the emission mode. Establishing Reflective White Light Many signs need to reflect white. White emitting LEDs are well known and include a blue LED incorporating a yellow fill, while the thickness of the scale still allows some of the blue light to pass through the phosphor. The sum of the yellow light from the activating phosphor and the blue light passing through it establishes a final equilibrium white color. The BAEC material establishes white in a similar manner, but the yellow phosphor will be located at the far end of the surface. However, in the reflection mode, the BAEC white panels will appear yellow. To correct this hue problem, a thin color enhancement layer containing a blue pigment is used. This has a small amount of efficiency in the final panel performance in the reflective mode. The user must decide whether the balance white in the reflection mode is worth a small amount of light loss in the extra filtering and emission mode. In addition, a light diffusing layer can be used to create a balanced reflected white light. A yellow phosphor (such as YAG:Ce) has reflected white/yellow light. If a light diffusing panel is provided in front of the phosphor layer (which is typically done in the panel design), additional white light can be reflected by the diffusing panel to reduce the need for blue correction. Emission color for improved nighttime performance and color quality The traditional white backlit logo with transparent colored materials (such as clear vinyl and acrylic flakes) on the top provides reliable, low-cost color, while increasing brightness results in white backlight bleed. This white light addition causes a shift in color saturation', i.e., a reddish (red) reddish fading whitish (pink) red color. In accordance with one aspect of the invention 'phosphor-based signature consumables 150235.doc • 23· 201106310 (rolled or sheeted goods) provides increased brightness without color saturation and deterioration of quality. According to the present invention, as the blue backlight power is increased, as long as the amount of phosphor of the front material is sufficiently high, the viewer can see a brighter single color. Emission color improvement using an enhanced color layer It has heretofore been assumed that a mixture of BAEC phosphors can be used to establish a desired color saturation for a full color space. However, many phosphors have a broader range of light emission spectra than would be expected for highly saturated colors. In addition, the use of a phosphor to completely eliminate all blue light leakage from the LED may require an extremely thick phosphor layer, which may be inefficient or undesirable. The same principle can also be used to enhance the emission color in a manner similar to the use of a color enhancement layer to achieve an improved reflection color, see Figure 1〇. Although the phosphor can establish sufficient light at the target color frequency, for high color saturation there can be a wider range of emission curves than desired and/or blue light can still pass through the phosphor" both can be emitted by the front of the phosphor layer The color filter is corrected. Use BAEC color inks, white and black layers to create photo images and grayscale BAEC primary colors can be used to create fully saturated color gamuts (two-dimensional color spaces) for all solid colors. Since all colors share the same uniform backlight, the intensity of the colors is all the same, which has the function of converting the blue LED light into a new target color. This type of saturated color meets the needs of most signage, spot color graphics, lighting, and architectural applications. However, it is not possible to reduce the brightness of individual colors, as reducing the amount of phosphor for any individual color will result in more blue light passing through and causing a blue shift. 150235.doc •24- 201106310 However, in photos and continuous tone graphics, it is necessary to blend white and black into a solid color to control brightness and saturation. By mixing white and black into a saturated color, saturation and brightness can be controlled even if all colors share a fixed blue lED source. This extra blend of white and black will provide photo image printing (complete 3D color space). Adding white to a color can be accomplished by: "replacement of certain colored BAEC phosphors within a particular area with a particular number of yellow phosphors, and 2) substantially reducing the phosphor density within the area to facilitate illumination from the LED Some blue light can ooze out (yellow plus blue produces white). As described in the previous paragraph for color mapping, the number of applications 1} and 2) requires color mapping. To control brightness and darkness, add an opaque black layer. The black layer establishes a filter that controls the amount of light that passes through. This allows grayscale printing and controls color brightness. Black ink is opaque (usually based on carbon pigment), resulting in uniform light absorption over this area. The black layer can be printed in combination with the color enhancement layer to reduce cost and complexity. Through the color sampling and mapping of various colors and white and black, a complete 3D color mapping of the BAEC color system can be established. The primary color and white color are used. Black's full color map creates grayscale, and BAEC ink can be used to adjust the photo color space and print photos. Responding to the illuminating photo image of the blue illumination. The above color separation shows the importance of the black layer in creating the printed color image. In addition, it can be seen how much white is used in each color layer. Add white 150235.doc -25- 201106310 and The black system is necessary for the photo color space of the printable baec phosphor. The BAEC color is used to change the primary color from the subtractive CMY (magenta, magenta and yellow) to the additive RGB, but the same white and black principles apply. Any color system. The flat dot pattern used to improve the efficiency of the phosphor is different from the transparent CMY ink. If the BAEC phosphor and the coloring agent are layered directly on each other as in conventional photo printing, they will be compacted, see Figure 1 lb °This is because the phosphor closest to the blue LED source will absorb the blue light and convert it to the emission color. If the next phosphor is layered on top of the previous phosphor, it will not be activated by blue light as well, and Will absorb the colored light created by the first disc layer. If a blue enhanced colorant is used and the phosphor is placed on top of it, the phosphor on the surface will absorb And changing the corrected blue light' reduces the correction efficiency. Overlapping the color layer in the baec material leads to reduced efficiency and more difficult color mixing. The solution to this problem is to create a dot pattern in which the phosphors 29, 30 are substantially in the same plane. Adjacent to each other, see Figure 丨la. The 'material acts independently' in the flat print pattern and has maximum efficiency. The color mixing of the juxtaposed colors is done in the eye, similar to the RGB pixels of the TV screen. The key to this system is color. The dots 29, 30 are small enough to have sufficient color mixing in the eye. The alignment of the printing process is also important. Ink differential humidification is used to establish a natural separation of the ink on the substrate. For example, in the above case, if the yellow ink When water is dominant and red ink is oil-based, it will evade each other and tend to wet the substrate and avoid overlapping each other. The surface energy of the inks should match each other so that they are alienated from each other, but 150235.doc -26· 201106310 is still reasonably close to the substrate. It should be understood that the various features described herein share the following features: • Use a single excitation source, preferably a single color blue LED, as the light source (410 to 48〇11111 range). Use a single type of blue 1:^£) instead of a white backlight or a different color source. • Unlike phosphor modification color LEDs, these blue LEDs do not require phosphor modification. All colored light except blue is created by the BAEC (Blue Activated Emitter) material, ie, the phosphor, located at the far end. ® BAEC material is not used to modify a solid light source because it is not printed or cast into the LED, it is not placed inside the tube of the UV fluorescent tube, or used in any other way to directly modify the light source. Instead, it is printed, cast or otherwise patterned onto the distal display surface. In the case of a backlit panel, the color pattern containing the BAEC emission is located on the front display panel or directly cast into the plastic or other polymer film of the front panel. Devices containing BAEC can be backlit or glazed by blue LEDs. • BAEC is available in the color material group. Preferably, a set of BAEC materials is provided in the complete color gamut for each type of target application. The BAEC material group is designed to provide a complete color set so that users can design a variety of color products using a set of BAEC products. To create a color group, the different phosphors and pigments are mixed and color mapped to create a complete palette of products with similar blue response and good color saturation. A product group comprising BAEC powder may be provided in various form factors, including but not limited to flexible vinyl film, rigid polycarbonate sheet and web 150235.doc -27-201106310 printing ink. The pre-manufactured BAEC material set allows the user to customize it simply by selecting the target color BAEC material (eg in the case of cutting Ethylene labels) or by printing in BAEC ink (as in screen printing signs or displays) Design of illuminated color products and graphic displays. This system allows users to build a wide range of color light-emitting devices and displays using only one type of standard light source (blue LED) and BAEC materials. • BAEC will combine color pigments with color illuminators to achieve blue/green luminescent materials. The light-breaking body is used to create all colors from red to green through yellow. Since the target color is close to blue, the phosphor does not need to produce blue light 'because the LED has established light within these frequencies. In the color space where the LED produces blue light, a color filter pigment (called pigment enhancement) can be used. Since blue LEDs are effective, the use of color pigments in BAEC is primarily to "tune" the blue tint. The blue/green color also requires green light so that the blend of blue pigment and green phosphor can be used to create colors in the blue/green space. • The same BAEC scale method can be applied to work with UV sources. Using ultraviolet light, blue reproduction requires a blue emitting phosphor. However, in many applications, the use of blue LEDs instead of UV is more desirable because UV has the disadvantage of being more destructive to organic materials. Similarly, exposure to ultraviolet light can impair vision because ultraviolet systems typically require light weight to protect the viewer. In addition, the blue LED is sufficient, low cost and reliable. The New Wavelength Blue LED in the range of 41〇 to 47〇ηη is preferred because it is more effective in exciting the phosphor and provides a more pure blue light, which requires less color pigment 150235.doc -28- 201106310 Enhanced. In addition, since the blue LED does not damage the eye, the BAEC luminescent material does not need to be closed or in close contact with the blue LED. Devices using the BAEC architecture are open, so blue LED spotlights can be used to view party BAEC displays from the rear or rear, and to emit target images from both ends (assuming black surroundings). It will be apparent to those skilled in the art that the present invention may be modified without departing from the scope of the invention. For example, while the exemplary embodiments are directed to fixed display displays, the inventors expect that the present invention can be applied to other applications where light of a selected color, such as accent lighting and architectural lighting applications, needs to be produced over a relatively large area. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to better understand the present invention, a specific embodiment of the present invention has been described by way of example only and with reference to the accompanying drawings in which: FIG. Figure 2a is an exploded perspective view of a backlight illumination exit sign in accordance with the present invention; Figure 2b is a cross-sectional view through the line "AA" of Figure 2a; Figure 3 is a side-light illuminated arrow indicator in accordance with the present invention 4a and 4b are schematic cross-sectional views of a luminescent sign in accordance with the present invention; Figures 5a through 5d are schematic views of other embodiments of a light-emitting illuminating sign; Figure 6 is for generating a selected number FIG. 7 is a diagram showing a cIE chromaticity diagram illustrating a pigment enhancement effect; FIG. 9 is a graph of intensity versus wavelength, which is used for (a) ) Blue-activated red phosphor in the emission mode 150235.doc •29· 201106310, (b) blue-activated red phosphor in the reflection mode of reflected sunlight (white light), (c) absorption in the color enhancement layer curve, And (d) a blue activated red phosphor in a reflective mode including reflected color correction; Figure 10 is a blue activated red phosphor and color enhancement filter feature for uncorrected and enhanced color emission modes A graph of intensity versus wavelength; and Figures 11a and lib are diagrams of (a) a pattern of carbon dots according to the present invention and a layout of ink dots used to produce a photographic image in a conventional printing scheme. Explanation of symbols] 1 Illuminated sign 2 Light box 3 Illuminated display surface 4 Light-emitting diode (LED) / Radiation source 5 Substrate / Illuminated display surface 6 Phosphor 7 Color-enhanced filter 8 Light/excitation energy 9 Light 10 Twilight 11 Light 12 Illuminated sign 13 Mask or template 14 Aperture / window 150235.doc 201106310 15 Illuminated sign 16 Depression / Dent 17 Reflective surface / reflector 18 Illuminated sign 19 Illuminated sign 20 Illuminated sign 21 Reflecting surface / reflector 22 Illuminated sign 23 Reflective surface/reflector 24 Illuminated sign 25 Illuminated sign 26 Individually activatable symbol 27 Individually activatable symbol 28 Individually activatable symbol 29 Light / color phosphor dot 30 / color dot 150235.doc -31-