200407930 ⑴ . 玖、發明說明 ~ (發明說明應敘明：發明所屬之技術領域、先前技術、内容、實施方式及圖式簡單說明） 本發明是關於一種包括一顯示幕之顯示裝置，該顯示幕 在其一外側上有一選擇性吸光外部塗層。 因對諸如陰極射線管（CRT)、液晶顯示器（lcd)及電漿顯 不面板（PDP)等不同種類顯示器之使用日益廣泛，對這些顯 不益之要求也已增加。例如要求避免因雜散外來光在顯示 幕表面所引起之不當反射。鏡面及擴散反射之外來光均會 馨 造成所顯示圖像日光對比之減小。這導引出在顯示幕表^ 之外表面上裝置一光學功能層之開發。 對解決上述問題曾有許多建議。例如防反射膜對減少鏡 面反射之周圍光頗為有效。 本么明主要疋關於在CRT—光層所反射來自日光之被擴 散反射周圍光之問題。在顯示幕外部表面附加之光譜選擇 性塗層結構首先會減少到達磷光層之周圍光之量，然後當 其已在磷光層處被擴散反射後會再減少該光之量。因此， 光譜選擇性塗層會減少被反射之周圍光兩次，然而填光^ « 在電子轟擊下所產生光之亮度L(亦即有用之圖像内容）僅 被減少一次。所謂之顯示器亮度對比性能[<：：{)則以此一方 式被增強。LCP之定義為L/，Rdiff，其中^代表顯示幕之 擴散反射係數。LCP值越高，顯示器在曰光對比及光輸出 方面以及因而在圖像品質之性能方面會越好。使用該種膜 及塗層已為眾所週知且頗為廣泛，例如本發明申請人曾以 形色及抗靜電塗層（CAS塗層）名稱發展並製造出該種塗層 。在ΕΡ-0 426 037及ΕΡ-0 335 _號專利文件中亦曾揭露該 -6- (2) 200407930200407930 ⑴. 玖, description of the invention ~ (The description of the invention should state: the technical field, the prior art, the content, the embodiments, and the drawings of the invention are briefly explained) The present invention relates to a display device including a display screen, the display screen A selective light absorbing outer coating is on one of its outer sides. As the use of different types of displays, such as cathode ray tubes (CRT), liquid crystal displays (lcds), and plasma display panels (PDPs), has become more widespread, the requirements for these displays have also increased. For example, it is required to avoid improper reflection caused by stray external light on the display surface. Both specular and diffuse reflections of external light will be pleasant, resulting in reduced daylight contrast in the displayed image. This led to the development of a device with an optical functional layer on the outer surface of the display screen ^. There have been many suggestions for solving the above problems. For example, anti-reflection film is effective for reducing the ambient light reflected by the mirror. Benmemin is mainly concerned with the problem that the light reflected from the CRT-light layer is diffused and reflects the surrounding light. The addition of a spectrally selective coating structure on the outer surface of the display screen will first reduce the amount of light reaching the phosphorescent layer, and then reduce it after it has been diffusely reflected at the phosphorescent layer. Therefore, the spectrally selective coating will reduce the reflected ambient light twice, but the fill light ^ «produced by the electron bombardment will reduce the brightness L (that is, useful image content) only once. The so-called display brightness contrast performance [&:;: {) is enhanced in this way. LCP is defined as L /, Rdiff, where ^ represents the diffuse reflection coefficient of the display screen. The higher the LCP value, the better the display will be in terms of light contrast and light output and therefore in terms of image quality performance. The use of such films and coatings is well known and quite extensive. For example, the applicant of the present invention has developed and manufactured such coatings under the name of shape and antistatic coating (CAS coating). It has also been disclosed in EP-0 426 037 and EP-0 335 _ -6- (2) 200407930
但上述已知結構之缺點是 不於該顯示器上之圖像帶 較暗部分為然，而這在大 種光譜選擇性塗層之其他舉例。 會有紫色或藍紫色之外觀而使顯 點紫色，尤其是在所顯示圖像之 多數應用上均為不欲有者。 -π,兄服上述問題之一 個方式。即是對顯示幕提供一包括含有—種氧化金屬里色 染色之外部過遽層。如此即可達到有黑色或灰色幕之外觀 。但在外部過㈣中納人黑色染色會造成激勵顯示之 降低且對亮度對比性能（LCP)並無任何改善。 因此本發明之-目的是提供一種顯示裝置具有無色之 外觀且可在克服先前技術缺點之同時表現出經 LCP。 ° ^ 上述及其他目的是以本文首段所述之顯示裝置來達成 ，邊裝置之特徵為該顯示幕更被提供有位於該幕内側上 之-波長選擇性吸收内層。於是在第一波長間隔内之光 將為該吸收内層所吸收’而在第二波長間隔内之光將為 選擇性吸光之外塗層吸收》這樣可中和從該顯示裝置反 射之顏色。此外，該波長選擇性吸收内層被適當安排成 能吸收約500至560 nm波長間隔以外之波長，亦即發出必 要之綠光。因而可中和先前技術在顯示器外側上吸收塗 層之藍紫外觀。 在本發明第一實例中，該波長選擇性吸收内層是做為一 綠色濾色器。因而達成可用於諸如CRT、PDP及LCD等大少 數顯示類型之結構。最好該顯示裝置包括一螢光鱗圖案^ 200407930 (3) 發曰及讀;明·續胃 〜、s< 、V、英 而該波長選擇性吸收内層是置於該螢光磷圖案與該幕之内 側間。此外，該顯示裝置包括具有分別用於紅、綠及藍色 刀立之邊光區所組成之螢光鱗圖案，且該波長選擇性吸收 内層是置於綠色螢光磷區與該幕内側之間。因而可達成能 用於具有藍紫色外觀共同頻譜選擇性外部塗層之先前技術 裝置之結構。在本發明第二實例中，該顯示裝置包括一螢 光磷圖案，且該波長選擇性吸收内層是安排成圍著該磷光 圖案磷粒子之色素塗層。於是本發明可實現於一 CRT或類 似裝置中而除色素外不必增加額外組件。該顯示裝罝最好 包括一分別用於紅、綠及藍色分立之螢光區組成之螢光磷 圖案，且該波長選擇性吸收内層被安排成圍著綠色螢光磷 粒子及該幕内側之色素塗層。因而達成可用於有藍紫色外 觀共同頻譜選擇性外部塗層之先前技術裝置之結構。 最後為本發明又一較佳實例，談顯示裝置更包括下述塗 層之一：位於該選擇性吸光外塗層一外側上之一防反射塗 層、一防靜電塗層及一靜電屏蔽塗層或此等塗層之任何組 合。如此可將顯示器之良好防反射特性與經改善之亮度對 比性能（LCP)加以組合。該選擇性吸光外塗層宜於與該第二 外塗層積體形成以便將所施加之塗層數減至最少。 現在參考附圖對各較佳實例作更詳細之說明。 圖1為本發明用於其中之陰極射線管斷面圖。 圖2為圖1所示陰極射線管顯示幕之細節圖。 圖3為對做為使用經修改虹膜（IRIS)塗層，亦即具有光譜 選擇性吸收染色分析試劑（AR)塗層，之入射光波長函數之 (4) (4)200407930However, a disadvantage of the above known structure is that it is not the darker part of the image band on the display, and this is another example of a large number of spectrally selective coatings. Will have a purple or blue-violet appearance and make the display purple, especially in most applications where the displayed image is unwanted. -π, one way to serve the above problem. That is to provide the display screen with an external layer containing a kind of oxidized metal inner tint. In this way, you can achieve a black or gray screen appearance. However, in the external process, the black staining of the human will cause the reduction of the excitation display and does not improve the brightness contrast performance (LCP). It is therefore an object of the present invention to provide a display device which has a colorless appearance and can overcome the disadvantages of the prior art while exhibiting LCP. ° ^ The above and other objects are achieved by the display device described in the first paragraph of this article. The side device is characterized in that the display screen is further provided with an inner layer of wavelength selective absorption on the inside of the screen. Thus, the light in the first wavelength interval will be absorbed by the absorbing inner layer 'and the light in the second wavelength interval will be absorbed by the selective light absorbing outer coating "so as to neutralize the color reflected from the display device. In addition, the wavelength selective absorbing inner layer is appropriately arranged to absorb wavelengths outside the wavelength interval of about 500 to 560 nm, that is, to emit necessary green light. It is thus possible to neutralize the blue-violet appearance of the prior art absorption coating on the outside of the display. In the first example of the present invention, the wavelength selective absorption inner layer is used as a green color filter. Therefore, a structure that can be used for a large number of display types such as CRT, PDP, and LCD is achieved. Preferably, the display device includes a fluorescent scale pattern ^ 200407930 (3) Hair said and read; Ming · Xiawei ~, s <, V, Ying and the wavelength selective absorption inner layer is placed on the fluorescent phosphor pattern and the The inside of the curtain. In addition, the display device includes a fluorescent scale pattern composed of edge light regions for red, green, and blue blades, respectively, and the wavelength selective absorption inner layer is placed in the green phosphorous phosphor region and the inner side of the screen. between. It is thus possible to achieve a structure that can be used in a prior art device having a common spectrally selective outer coating with a blue-violet appearance. In a second example of the present invention, the display device includes a fluorescent phosphor pattern, and the wavelength selective absorption inner layer is a pigment coating arranged to surround the phosphor particles of the phosphor pattern. The present invention can thus be implemented in a CRT or similar device without adding additional components in addition to the pigment. The display device preferably includes a fluorescent phosphor pattern composed of separate fluorescent regions of red, green, and blue, and the wavelength selective absorption inner layer is arranged to surround the green fluorescent phosphor particles and the inside of the screen. Pigment coating. This results in a structure that can be used in prior art devices with a blue-purple appearance common spectral selective outer coating. Finally, it is another preferred embodiment of the present invention. The display device further includes one of the following coatings: an anti-reflection coating, an antistatic coating, and an electrostatic shielding coating on an outer side of the selective light absorbing outer coating. Layer or any combination of these coatings. This combines the good anti-reflection characteristics of the display with improved brightness contrast performance (LCP). The selective light absorbing overcoat is preferably formed with the second overcoat in order to minimize the number of coatings applied. Preferred embodiments will now be described in more detail with reference to the drawings. Fig. 1 is a sectional view of a cathode ray tube to which the present invention is applied. FIG. 2 is a detailed view of a cathode ray tube display screen shown in FIG. 1. FIG. Figure 3 shows the wavelength of incident light as a function of the modified iris (IRIS) coating, that is, the coating with spectral selective absorption staining analysis reagent (AR). (4) (4) 200407930
裸玻璃反射曲線。 就π度對比性能（LCP)之改善而言，希望諸如在顯示幕i 外側上吸收染色傳輸塗層之選擇性吸光外部塗層2應吸收 輻射光譜綠色與紅色尖峰間之光(日光)。這約為56〇 nm(橘 色），它造成使用具有紫色之染色。^上述之原因，此一紫 色外觀為在大夕數應用上所不願有者。因此需要減少顯示 幕之此-紫色外觀，而本發明正與此一減少有關。 、本發明之主要概念是可對幕之内部加上一種顏色來影響 、擇II吸光塗層之外觀。為此目#，至少在顯示幕内側提 供=分補充材料使得可給與在戟層被反射之外來光一種 /、i色互補之顏色，亦即綠光。如此該顯示幕内所反射之 光對觀看者會顯得有較少紫色。 圖1所示為本發明對其適用之陰極射線管（CRT)顯示器之 斷面圖。該顯示器包括具有一内側及一外側之顯示幕卜顯 不幕1之中央部分是以諸如玻璃之透明材料所製，不過此點 1本t s並不特別重要。但在顯示幕之外側為可能之觀看 者置有選擇性吸光外部塗層2。該選擇性吸光外部塗層最 :、、、 /、中、’’内入一種染色或色素之透明矩陣之彩色塗 層。在顯示幕1之反面，亦即幕之内側，置有-波長選擇性 吸收内層3 ’此層覆蓋住顯示幕1該内表面之一部分。 时圖1所不之幕可用以產生一全色cr丁顯示器。傳統上顯示 =内表面提供有諸如叙發光材料，且安排_電子束碰 :η而產生光。在一全色顯示器巾，諸如一紅綠藍顯示器 ，安排有分立之鱗圖素或碟條片用以分別產生紅、綠及 200407930Bare glass reflection curve. In terms of the improvement of the π-degree contrast performance (LCP), it is desirable that the selective light absorbing outer coating 2 such as an absorption dyeing transmission coating on the outside of the display screen i should absorb light (sunlight) between the green and red peaks of the radiation spectrum. This is approximately 56 nm (orange), which results in the use of a purple stain. ^ For the reasons mentioned above, this purple appearance is undesired in Daxiu application. It is therefore necessary to reduce the purple appearance of the display screen, and the present invention is related to this reduction. The main concept of the present invention is to add a color to the inside of the screen to affect the appearance of the II light-absorbing coating. To this end, at least the supplementary material is provided on the inside of the display screen so that it can give a complementary color to the light outside the halberd layer, i.e., green light. The light reflected in the display will thus appear less purple to the viewer. Fig. 1 is a sectional view of a cathode ray tube (CRT) display to which the present invention is applicable. The display includes a display screen having an inner side and an outer side. The central part of the screen 1 is made of a transparent material such as glass, but this point is not particularly important. However, a selective light absorbing outer coating 2 is placed on the outside of the display screen for possible viewers. The selective light-absorbing outer coating is: a color coating with a transparent matrix dyed or pigmented in it. On the opposite side of the display screen 1, that is, the inside of the screen, a wavelength-selective absorption inner layer 3 'is placed, which covers a part of the inner surface of the display screen 1. The scenario shown in Figure 1 can be used to produce a full-color CR display. Traditionally it has been shown that the inner surface is provided with materials such as luminescent materials, and that electron beams are arranged to collide with: η to produce light. On a full-color display towel, such as a red-green-blue display, discrete scale pixels or discs are arranged to produce red, green, and 200407930, respectively.
監色。在這種顯示器中有下述兩種方式來實現本發明。 圖2所示為本發明第一實例更詳細之情形，顯示出例如用 於CRT顯示幕一部分之斷面圖。在該顯示幕之内側置有一 圖案化之螢光層4，此處所示為分別用以產生紅、綠及藍光 之條片4R，4G，4B。在該螢光磷層4G與顯示幕1之該内表 面間為每第三條產生綠色之條片4G安排一用以吸收綠之互 補色之過濾層3。如圖2所示’罐條4G之填所反射之外來光 僅包括綠光，藉以中和外部塗層所發出之藍紫光而使顯示 幕有更為中和顏色之外觀且仍保持上述外部塗層所產生亮 度對比性能之改善。在先前技術之顯示器中，光是從其餘 之磷條片4R，4B所反射。 在第二實例（並未明確示出）中，透過使用帶點綠色之色 素而可用加上色素之綠色磷。此處是在顯示幕内側上置一 圖案化螢光層4 ,如用以分別產生紅、綠及藍光之條片 ’ 4G ’ 4B所示。每第三條產生綠色之條片4〇即為著色很重 之綠色磷所構成。在ΕΡ-0 836 2丨5專利文件中即有該種著色 磷之舉例，因而在此不加詳述。因此該綠色素層之功能為 用於每一被覆蓋磷粒子之過濾器（3)。否則本實例之功能即 如上述濾色器之應用。 下面將說明對上述顯示幕結構之兩個實驗： 1) 對具有綠濾色器之CRT上光度對比性能（Lcp)及擴散反射 係數（Rdiff)之測量，該濾色器係置於發綠光之填條片與幕之 内表面間。 2) 對個別具有紅、綠及藍濾色器之測量 •10- 200407930Monitor color. There are two ways to implement the present invention in such a display. Fig. 2 shows a more detailed situation of the first example of the present invention, showing a sectional view, for example, for a part of a CRT display screen. A patterned fluorescent layer 4 is placed inside the display screen. Here shown are strips 4R, 4G, 4B for generating red, green and blue light, respectively. A filter layer 3 for absorbing the complementary colors of green is arranged between the fluorescent phosphor layer 4G and the inner surface of the display screen 1 for every third strip 4G that generates green. As shown in Figure 2, the external light reflected by the filling of the can strip 4G only includes green light. By neutralizing the blue-violet light emitted by the outer coating, the display screen has a more neutral color appearance and still maintains the above-mentioned outer coating. Improved brightness contrast performance produced by layers. In prior art displays, light is reflected from the remaining phosphor strips 4R, 4B. In the second example (not explicitly shown), a green phosphorous to which a pigment is added can be used by using a greenish pigment. Here, a patterned fluorescent layer 4 is placed on the inner side of the display screen, as shown in the strips ′ 4G ′ 4B for generating red, green, and blue light, respectively. Every third strip producing green strips 40 is composed of heavily colored green phosphorous. An example of such colored phosphorous is given in the EP-0 836 2-5 patent document and will not be described in detail here. The function of the green pigment layer is therefore a filter (3) for each covered phosphor particle. Otherwise, the function of this example is the application of the color filter described above. The following two experiments on the structure of the display screen will be described below: 1) Measurement of photometric contrast performance (Lcp) and diffuse reflection coefficient (Rdiff) on a CRT with a green color filter, which is set to emit green light Between the filler strip and the inner surface of the curtain. 2) Measurement of individual red, green and blue color filters • 10- 200407930
’亦即每一條片均有適當顏色之濾色器。 實驗1 在塗層加工中曾對其内表面上置有一綠濾色器之第一顯 示幕以第一染色〉谷液加以處理，該第一染色溶液有〇 · $ %之 第一染色激度。同樣地在塗層加工中曾對其内表面上置有 一綠濾色器之第二顯示幕以第二染色溶液加以處理，該染 色溶液有1 ·0%之第二染色濃度。 最後所造成之機體顏色印象如下：未經塗敷之顯示幕（即 在未施加上述塗層前）有綠色外觀。塗上0·5%溶液之顯示幕 有中性外觀。最後，塗上丨·0%溶液之顯示幕有清晰之藍紫 色外觀。曾作之測量如下: 未塗敷 〇·5%藍紫色 1.0%藍紫色 差 別 亮度對比性 能（白色-D65) 271.0 284.8 + 5.1% 272.9 298.9 + 9.5% Rdiff 10.96% 9.24% -15.7 % --—- 10.63% 7.09% -33.3 % 實驗2 在其内表面上分別置有紅、綠及藍濾色器之第一及第二 顯示幕如上所述曾分別以0.5%及ι·〇%溶液加以處理。 最後所造成之機體顏色印象如下：未經塗敷之顯示幕（即 在未施加上述塗層前）有帶點綠色之外觀。塗上〇·5%溶液之 顯示幕有輕藍紫色外觀。最後，塗上1 ·〇%溶液之顯示示幕 有藍紫色外觀。曾作之測量如下·· 200407930'That is, each piece has a color filter of an appropriate color. Experiment 1 In the coating process, the first display screen with a green color filter on its inner surface was treated with the first dyeing> valley solution, and the first dyeing solution had a first dyeing degree of 0.00% . Similarly, in the coating process, the second display screen having a green color filter on its inner surface was treated with a second dyeing solution having a second dyeing concentration of 1.0%. The resulting color impression of the body is as follows: The uncoated display screen (that is, before the above coating is applied) has a green appearance. The display screen coated with 0.5% solution has a neutral appearance. Finally, the display screen coated with 丨 · 0% solution has a clear blue-violet appearance. The measurements that have been made are as follows: 0.5% blue-violet 1.0% blue-violet differential brightness contrast performance (white-D65) 271.0 284.8 + 5.1% 272.9 298.9 + 9.5% Rdiff 10.96% 9.24% -15.7% ----- 10.63% 7.09% -33.3% Experiment 2 The first and second display screens with red, green, and blue color filters on their inner surfaces were treated with 0.5% and ι · 〇% solutions, respectively, as described above. The resulting color impression of the body is as follows: The uncoated display screen (that is, before the above coating is applied) has a slightly green appearance. The display screen coated with a 0.5% solution had a light blue-purple appearance. Finally, the display screen coated with 1.0% solution had a blue-purple appearance. The measurements that have been made are as follows: 200407930
未塗敷 〇·5%藍紫色 —-—-~~-— w 1.0%藍紫色 差 另ιΐ 亮度對比性 能（白色-D65) 338.8 363.8 + 7,4 % 340.8 390.3 + 14.5 % Rdiff —_ 5.69% 4.51% -20.7 % 5.48% --—— 3.44% -37.2 % 第一個顯示是藍紫染色與帶點綠之外觀，亦即提供有一 綠遽色裔或強烈加入綠色素之碟，可有約5 %之亮度對比性 能（LCP)增益。對用為電腦監視器之CRT顯示器而言，這更 可不需額外成本或很少額外成本即可提供，因這些顯示幕 已被提供有塗層。此外’可從上面之表中看出，在藍紫外 觀可被接受之用途上可獲較高LCP增益。 因此可達到有較少紫色甚至中性色外觀之顯示幕，此外 如上所述’因該彩色層也吸收橘色光，本發明之顯示器可 顯不更飽和之紅色。從上面可看出，LCp之改善約為5至1〇 %而顯不幕有更中和之顏色。亦可從上面及從只有綠濾色 器之實驗1斷定已達成中性顯示外觀。 在本發明一貫例中，本發明之内部及外部塗層可與諸如 一分析試劑（AR)塗層、一防靜電塗層或一靜電障蔽塗層等 之附加塗層合併使用^例如一附加塗層可與該外部塗層積 歧形成而限制在製造上個別塗層之數目。圖3所示為上述之 舉例，它顯不出經修改AR塗層（對標準之AR塗層已加上一 種3強LCP之養色染色）中AR之活動狀態。本發明在顯示幕 外吏用該種AR外部塗層連同内層及外部塗層對圖像品 200407930Uncoated 0 · 5% blue-violet —-—- ~~ -— w 1.0% blue-violet is inferior, brightness contrast performance (white-D65) 338.8 363.8 + 7,4% 340.8 390.3 + 14.5% Rdiff —_ 5.69% 4.51% -20.7% 5.48% ------ 3.44% -37.2% The first display is a blue-violet dyeing and a bit of green appearance, that is, a disc with a green ocher or a strong addition of green pigment can be provided. 5% brightness contrast performance (LCP) gain. For CRT monitors used as computer monitors, this can be provided at no additional cost or with little additional cost, as these displays are already coated. In addition, as can be seen from the table above, a higher LCP gain can be obtained in applications where the blue ultraviolet view is acceptable. Therefore, a display screen with less purple or even neutral color appearance can be achieved. In addition, as described above, since the color layer also absorbs orange light, the display of the present invention can show less saturated red. It can be seen from the above that the improvement of LCp is about 5 to 10% with a more neutral color. A neutral display appearance can also be determined from above and from Experiment 1 with only a green filter. In a conventional example of the present invention, the internal and external coatings of the present invention may be used in combination with additional coatings such as an analytical reagent (AR) coating, an antistatic coating, or an electrostatic barrier coating, such as an additional coating. Layers can be formed with the outer coating to limit the number of individual coatings on manufacture. Figure 3 shows the above example, which does not show the active state of AR in the modified AR coating (the standard AR coating has been added with a 3 strong LCP coloring dye). The present invention uses the AR outer coating together with the inner layer and the outer coating on the display product for display products.
⑻ 質甚為有利。圖3所用之AR塗層為一虹獏（irjs)塗層。該 IRIS塗層為一種二或三層之ar塗層，此種塗層在市面上所 售由本發明申請人製造之監視器管上即有，事實上是在其 構成層之一或兩個中納入一前文所述之彩色及抗靜電 (C AS)塗層。圖3之曲線顯示即使有染色，IRIS塗層之ar特 性仍保持不變（近似標準IRIS塗層之性能）而且該染色會增 加LCP。換言之，在理論上及實際上均可將本發明與ARi 利益加以組合。 應注意雖然本發明是參考陰極射線管加以說明，但本發 明同樣適用於為所顯示圖像不同顏色有分立發射區之其他 型顯不器’諸如電漿顯示面板（PDP)及液晶顯示器（LCD)。 此外’本發明亦可與其他塗層結構連同使用，諸如前述之 AR塗層或靜電屏蔽（ES)塗層。 圖式代表符號說明 1 顯示幕 選擇性吸光外部塗層 3 波長選擇性吸收内層 3 過濾層 4’4R’4(3’4B 螢光層 L 亮度 -13-⑻ The quality is very favorable. The AR coating used in FIG. 3 is an irjs coating. The IRIS coating is a two- or three-layer ar coating. Such a coating is available on the monitor tubes manufactured by the applicant of the present invention on the market, and is actually in one or both of its constituent layers. Include a color and antistatic (C AS) coating as described earlier. The curve in Figure 3 shows that even with dyeing, the ar characteristics of the IRIS coating remain unchanged (approximately the performance of a standard IRIS coating) and the dyeing increases LCP. In other words, the benefits of the invention and ARi can be combined theoretically and practically. It should be noted that although the present invention is described with reference to a cathode ray tube, the present invention is equally applicable to other types of displays having discrete emission areas for different colors of displayed images, such as a plasma display panel (PDP) and a liquid crystal display (LCD). ). In addition, the present invention can be used in conjunction with other coating structures, such as the AR coating or electrostatic shielding (ES) coating described above. Explanation of Symbols in the Drawings 1 Display Screen Selective Light Absorption Outer Coating Layer 3 Wavelength Selective Absorption Inner Layer 3 Filter Layer 4’4R’4 (3’4B Fluorescent Layer L Brightness -13-