TWI237730B - Color projecting display device capable of switching between three-dimension and two-dimension - Google Patents
Color projecting display device capable of switching between three-dimension and two-dimension Download PDFInfo
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1237730 五、發明說明(1) 【發明所屬之技術領域】 本發明係為一種三維/二維可 〒土 2別是可切換三維或二維顯示 【先前技術】 近年來’針對高清晰度電視( 了許多+新型的顯示技術,如··等離 術、薄膜電晶體(TFT)顯示技術, DMD)技術、以及矽基液晶反射式 ’皆可以提供彩色且大面積顯示的 但上述這些顯示技術均為平面 維立體視覺之顯示效果。為此,世 此開展了研究。如,美國專利U s 6, 顯示板的表面貼上微偏振片條,觀 的眼鏡,可使左右眼看到不同的圖 方法。但至今為止’這些立體顯示 不強。 另外’目前的顯示技術所用的 LC0S)都是單色的,要實現 ,1樹/ 才)色顯 複雜的光學系統,先將白多止、丄 ^ , 巴先分成 分別投射到三塊矽基液晶磲+ ^ Λ 不面板 這三束光合成彩色圖像。這種彩色 雜、成本較高、性能不约穩定等缺 緣是,發明人乃根據此等缺失 產品之相關經驗,悉心%察且研究 切換的彩色投影顯示裝 的彩色投影顯示裝置。 HDTV)的應用,發展起 子體顯示(P DP )技 •數位微反射鏡顯示( (LC0S)顯示技術等等 方式。 顯示之技術,不具有三 界上有許多科研人員對 3 5 1,2 8 0提出了在液晶 看者帶上用偏振片製作 像,而形成立體視覺的 技術都較複雜,實用性 矽基液晶顯示面板( 示’通常是採用一套較 紅、綠、藍三基色光, (LC0S)上,然後再將 顯示方法有著機構較複 點。 及依據多年來從事製造 之,乃潛心研究並配合1237730 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention is a three-dimensional / two-dimensional tunable 2 or switchable three-dimensional or two-dimensional display [prior art] In recent years, 'for high-definition television ( Many new display technologies, such as plasma, TFT display technology, DMD technology, and silicon-based liquid crystal reflective type, can provide color and large-area displays, but these display technologies are all It is the display effect of three-dimensional stereo vision. To this end, research has been carried out. For example, U.S. patent US 6, the surface of the display panel is affixed with micro-polarizer strips, and viewing glasses can make the left and right eyes see different drawing methods. But so far, these stereoscopic displays are not strong. In addition, the current LC0S used in display technology are all monochromatic, to achieve, 1 tree / only) color display complex optical system, Baiduzhi, 丄 ^, Baxian are first divided into three silicon-based projection LCD 磲 + ^ Λ These three beams of panel do not synthesize a color image. The disadvantages of such color miscellaneous, high cost, and inconsistent performance are that the inventor carefully and researched the color projection display device of the switched color projection display device based on the relevant experience of these missing products. HDTV) applications, the development of PDP technology • digital micro-mirror display (LC0S) display technology and so on. The display technology does not have many researchers on the Three Realms. 3 5 1, 2 8 0 It is proposed to use polarizers to make images on the LCD viewer belt, and the techniques for forming stereo vision are more complicated. Practical silicon-based liquid crystal display panels (shown usually use a set of red, green, and blue three-color light, LC0S), and then the display method has a more complex mechanism. And based on many years of manufacturing, research and cooperation
第6頁 1237730 五、發明說明(2) 學理之運用,而提出一種設計合理且有效改善上述缺失之 本發明。 【發明内容】 本發明案之其一目的,在於提供一種三維/二維可切 換的彩色投影顯示裝置,藉以實現彩色立體顯示,具有結 構簡單、光學效率高、成本低、實用性強、容易推廣等特 點。 本發明案之其二目的,在於提供一種三維/二維可切 換的彩色投影顯示裝置,藉以更豐富、生動、逼真的顯示 顏色,從而提高圖像質量。 本發明案之其三目的,在於提供一種三維/二維可切 換的彩色投影顯示裝置,藉以三維立體彩色投影顯示和二 維六基色彩色投影顯示之間互相切換的顯示裝置。 本發明案之其四目的,在於提供一種三維/二維可切 換的彩色投影顯示裝置,以利用彩色矽基液晶顯示面板( LC0S)簡化光學系統,提高系統可靠性。 本發明案之其五目的,在於提供一種三維/二維可切 換的彩色投影顯示裝置,藉以利用彩色矽基液晶顯示面板 (LC0S)之設計,以消除圖像失真,使得人的肉眼觀察不 到圖像的畸變,從而提高圖像質量。 依據前述發明目的,本發明係為一種三維/二維可切 換的彩色投影顯示裝置,包括兩片具有微型彩色濾光片列 陣的梦基液晶反射式彩色微顯不晶片和偏振分光棱鏡組等 部件。这兩片碎基液晶反射式彩色微顯不晶片分別輸入相Page 6 1237730 V. Description of the invention (2) The application of the theory, and propose a present invention with a reasonable design and effective improvement of the above-mentioned defects. [Summary of the Invention] Another object of the present invention is to provide a three-dimensional / two-dimensional switchable color projection display device for implementing color three-dimensional display with simple structure, high optical efficiency, low cost, strong practicability, and easy promotion. Features. Another object of the present invention is to provide a three-dimensional / two-dimensional switchable color projection display device, which can display colors more abundantly, vividly, and realistically, thereby improving image quality. A third object of the present invention is to provide a three-dimensional / two-dimensional switchable color projection display device, whereby a display device capable of switching between a three-dimensional three-dimensional color projection display and a two-dimensional six primary color projection display is used. The fourth object of the present invention is to provide a three-dimensional / two-dimensional switchable color projection display device, which uses a color silicon liquid crystal display panel (LCOS) to simplify the optical system and improve system reliability. A fifth object of the present invention is to provide a three-dimensional / two-dimensional switchable color projection display device, by utilizing a design of a color silicon-based liquid crystal display panel (LC0S) to eliminate image distortion and make it invisible to human eyes. Distortion of the image, thereby improving the image quality. According to the foregoing object of the present invention, the present invention is a three-dimensional / two-dimensional switchable color projection display device, including two dream-based liquid crystal reflective color micro-display chips with polarized color filter arrays, a polarization beam splitter prism group, and the like component. The two pieces of chip-based liquid crystal reflective color micro-display chip are input separately
1237730 五'發明娜(3^' --- 同視角的立體圖像資訊,再分別置於偏振分光棱鏡級 yC| 's Jpn γ\ 照,上方向線偏振光的出口位置,當照明的白色自然光 :Γ 4偏振分光棱鏡組時,被該偏振分光棱鏡組分成兩束 f方向互相正交的線偏振光(S偏振光和ρ偏振光)分 別投射到這兩片矽基液晶反射式彩色微顯示晶片上,經這 兩片石夕基液晶反射式彩色微顯示晶片調製後,改變其偏振 方=(S偏振光轉為p偏振光,p偏振光轉為s偏振光) =:上各自的彩色圖像資訊,再經由該偏振分光棱鏡組合 。二束光,被輸出於匯聚出口,且經投影物鏡投射成像 去*於該成像光是由兩束正交的線偏振光組成的,當觀看 上用偏振片製作的眼鏡時,言亥眼鏡的兩 m向相互垂直的偏振片’即光偏振片,可 2又眼U只看到-個相應偏振方向的圖I,即一個 ϋ只能看到其中-片石夕基液晶反射式彩色微顯示晶片上 的圖像,從而可以獲得立體視覺。 、1237730 Five inventions (3 ^ '--- Stereo image information of the same viewing angle, and then placed in the polarization beam splitting prism level yC |' s Jpn γ \, respectively, the exit position of the linearly polarized light in the upward direction, when the white Natural light: In the case of the Γ 4 polarization beam splitting prism group, two linearly polarized lights (S-polarized light and ρ-polarized light) orthogonal to each other in the f direction are projected by the polarization beam splitting prism component to the two silicon-based liquid crystal reflective color micro-lens. On the display chip, after the modulation of these two Shixiji liquid crystal reflective color micro-display chips, the polarization direction is changed = (S polarized light is converted to p-polarized light, p-polarized light is converted to s-polarized light) =: the respective colors on The image information is then combined by the polarization beam splitting prism. Two beams of light are output at the converging exit and projected and imaged by the projection objective lens. The imaging light is composed of two orthogonal linearly polarized light. When viewed In the case of glasses made with polarizers, the two m-direction perpendicular polarizers of Yanhai glasses, namely light polarizers, can only be seen in Figure 2 and a corresponding polarization direction. Of which-Shishiki liquid crystal reflective color micro display crystal On the image, a stereoscopic vision can be obtained.,
當在這兩片石夕基液晶反射式彩色微顯示晶片中輸入的 圖像是相同的時候’該套裝置也可以切換成非立體視覺的 ^投影顯示裝4,使觀看者不Μ上偏振片目艮鏡就能觀 看’而且可以比常規的投影顯示裝置具有更大的色度。特 別是當這兩片矽基液晶反射式彩色微顯示晶片的_ ^是具 有常規的紅綠藍三基色微型彩色濾光片列陣,而另一片ϋ 具有青、黃、品紅的三基色微型彩色濾光片列陣,則可以 形成一個六基色的彩色顯示系統,使顯示的圖像具有更寬 的色度範圍’可以呈現出更豐富、更生動、更逼真的色JWhen the input image is the same in the two Shixiji liquid crystal reflective color micro-display chips, the device can also be switched to a non-stereoscopic ^ projection display device 4 so that the viewer does not have a polarizer. It can be viewed with a mirror 'and can have a greater chromaticity than a conventional projection display device. Especially when the two silicon-based liquid crystal reflective color micro-display chips _ ^ are conventional red, green and blue three primary color micro-color filter arrays, and the other ϋ has three primary color micro-cyans of cyan, yellow, and magenta. The color filter array can form a six-primary color display system to make the displayed image have a wider chromaticity range. 'It can present richer, more vivid and more realistic colors. J
第8頁 1237730 五、發明說明(4) 來。 另外,在投射到各矽基液晶反射式彩色微顯示晶片上 的照明光,除一部分被該晶片調製後作投影顯示用外,其 餘部分因沒有改變偏振方向,而被按原光路反射回照明系 統’通過一定的裝置可以將該部分光再次反射回來,加以 重復利用,從而有效地提高光的利用效率。 為了使 貴審查員能進一步了解本發明之特徵及技術 内容,請參閱以下有關本發明之詳細說明及附圖,然而所 附圖示僅提供參考與說明用,並非用來對本發明加以限制 者。 【實施方式】 請參閱第一圖所示,本發明係為一種三維/二維可切 換的彩色投影顯示裝置,其中偏振分光棱鏡組1 1是由四 個分別在直角面鍵有偏振分光膜1的直角棱鏡,按X形狀 排列膠合而成的。雨片具有微型彩色濾光片列陣的石夕基液 晶反射式彩色微顯示晶片2和3分別置於該偏振分光棱鏡 組1 1的P方向和S方向線偏振光的出口位置處(如圖所 示),並分別輸入相應不同視角的立體圖像資訊,當照明 的白色自然光5照到偏振分光棱鏡組1 1後,被該偏振分 光棱鏡組1 1分成兩束偏振方向互相正交的S方向線偏振 光6和P方向線偏振光7,這兩束光分別都經過兩次偏振 分光膜1以保證其消光比,然後分別照射到矽基液晶反射 式彩色微顯示晶片3和2上,被該兩片晶片分別調製後, 將部分具有彩色圖像資訊的線偏振光反射,其偏振方向轉Page 8 1237730 V. Description of Invention (4) In addition, except for a part of the illumination light projected on each silicon-based liquid crystal reflective color micro-display chip, which is modulated by the chip for projection display, the remaining part is reflected back to the illumination system according to the original optical path because the polarization direction is not changed. 'With a certain device, this part of the light can be reflected back and reused, thereby effectively improving the efficiency of light utilization. In order to enable your examiner to better understand the features and technical contents of the present invention, please refer to the following detailed description of the present invention and the accompanying drawings, but the drawings are provided for reference and explanation only, and are not intended to limit the present invention. [Embodiment] As shown in the first figure, the present invention is a three-dimensional / two-dimensional switchable color projection display device, in which the polarization beam splitting prism group 11 is composed of four polarization beam splitting films 1 on the right-angle plane keys. Right-angle prism, glued in an X-shape arrangement. Rain sheet Shi Xiji liquid crystal reflective color micro display wafers 2 and 3 with micro color filter arrays are respectively placed at the exit positions of the P-direction and S-direction linearly polarized light of the polarization beam splitting prism group 1 1 (Shown), and input stereo image information at different perspectives. When the illuminated white natural light 5 hits the polarization beam splitting prism group 1 1, the polarization beam splitting prism group 1 1 divides into two beams S whose polarization directions are orthogonal to each other. The linearly polarized light 6 and the linearly polarized light 7 in the P direction pass through the polarization beam splitting film 1 twice to ensure the extinction ratio, and then irradiate the silicon-based liquid crystal reflective color micro display chips 3 and 2, respectively. After being modulated separately by the two wafers, part of the linearly polarized light with color image information is reflected, and its polarization direction is turned.
第9頁 1237730 五、發明說明(5) 查9 〇 ’即光線8和9 ,再次通過偏振分光棱鏡組11, 均分別經過兩次偏振分光膜1 (透過或反射)以保證消光 比(即對比度),並被其合成成一束光線1 0後,經該偏 振分光棱鏡的匯聚出口位置輸出,並通過投影物鏡4放大 成像後作投影顯示用。由於投影圖像的一部分光是來自晶 片3上的p偏振光圖像,而另一部分光是來自晶片2上的 s偏振光圖像,因此,觀看者可以帶上一副用偏振片製作 的眼鏡,該眼鏡的兩個鏡片上分別是兩片偏振方向相互垂 直的偏振片,即s和P光偏振片,使兩個眼睛分別只能看 到S偏振光圖像和p偏振光圖像,從而可以形成立^ 2覺 當兩 的圖像資 的相對位 者不必帶 影顯示裝 的光學效 第二 光棱鏡組 字型排列 示的按“ 相同。它 利於降低 在第 片矽基液晶反射式彩色微顯示晶片2和3上輸入 訊是完全相同的時候,通過調整該兩片顯示晶片 置,可使其兩個投影圖像完全重合,此時,觀看 眼鏡就可觀看到該一維平面顯示圖像。由於該投 置不需要預起偏器件,因而可以有效地提高系統 率〇 ,巧發明的-個實施例的示意圖。t的偏振分 1 1疋由四個常規的偏振分光棱鏡i 2按“米,, m來組合而成的。β的工作原理與第-圖所 ^狀排^組合而成的偏振分光棱鏡組11完全 ::f疋採用常規的商品偏振分光棱鏡組合,有 成本和規模化生產。 二圖所示的裝*中’ $當增加一些波#,可再進Page 9 1237730 V. Description of the invention (5) Check 9 0 ′, that is, light rays 8 and 9, pass through the polarization beam splitting prism group 11 again, and pass through the polarization beam splitting film 1 (transmission or reflection) twice to ensure the extinction ratio (ie contrast ), And after it is synthesized into a light beam 10, it is output through the convergence exit position of the polarization beam splitting prism, and is enlarged and imaged by the projection objective lens 4 for projection display. Since part of the light from the projected image is from the p-polarized light image on the wafer 3 and the other part is from the s-polarized light image on the wafer 2, the viewer can bring a pair of glasses made with a polarizer The two lenses of the glasses are respectively two polarizers whose polarization directions are perpendicular to each other, that is, the s and P light polarizers, so that the two eyes can only see the S polarized light image and the p polarized light image, respectively, so that It can form the two opposite positions of the two image materials. The optical effect of the second light prism set is not required to show the optical effect of the second display. It is the same. It is helpful to reduce the reflective color of the first silicon-based liquid crystal. When the input signals on the micro display chips 2 and 3 are completely the same, by adjusting the two display chip positions, the two projection images can be completely overlapped. At this time, the one-dimensional flat display image can be viewed by viewing the glasses. Image. Since this implantation does not require a pre-polarizing device, the system rate can be effectively increased. A schematic diagram of one embodiment of the invention. The polarization division of t is 1 1 疋 by four conventional polarization beam splitting prisms i 2 "M ,, m To combine. The working principle of β is combined with the polarization beam splitting prism group 11 in the figure ^. The complete :: f 疋 uses a conventional commercial polarization beam splitting prism combination, which has cost and large-scale production. The installation shown in the second picture * When you add some waves #, you can enter again
1237730 五、發明說明(6) v地改善圖像的對比度。例如,在 ;顯示晶片2、3的前表面上貝占上—片二t晶反射式彩色 J效地改善在有一定錐度角光線入射時波片,可 況(參見美國專利US5,327,27 ^的對比度下降 1 2間插入一也-分 .M u ^ ^牡谷偏振分光棱鏡 一—刀之一波片也能有效地進一步改善像質 丨浐第一圖疋對第二圖所示的裝置進行改盖# & 丨::]的示意圖。它的偏振分光棱鏡 又-:實 I偏振光2 3。該二分之—波片1 3。的作用可使 c方向旋轉90。(即可使 了使 =’或使P偏振光轉換成s偏振光)。這樣轉= I i到各矽基液晶反射式彩色 曰 ' t及從各石夕基液晶反射式彩色2 ; 3 t的光 過::I Ϊ : 4的成像光線,均經過-次透射和-次反ft Ϊ I比達到最I j且使兩路成像光束合成後的投影光束的消光 |裝=四圖是本發明的三維/二維可切換的彩色投影顯示 ^咅使用之矽基液晶反射式彩色微顯示晶片的截面結構 體i二。該矽基液晶反射式彩色微顯示晶片,包括具有積 …結構的矽基底晶片2 1 、金屬反射鏡列陣2 2 、下 l·阳定向層2 3 、液晶層2 4 、上液晶定向層2 5 、透明 第11頁 1237730 五、發明說明(7) 導電層2 6 、微型紅、綠、藍三基色彩色濾光片列陣2 7 、玻璃基片2 8 ,其中該矽基底晶片2 1 、金屬反射鏡列 陣2 2 、下液晶定向層2 3 、液晶層2 4 、上液晶定向層 2 5、透明導電層2 6 、玻璃基片2 8依次層疊設置並封 裝於一體,圖中僅示出微型彩色濾光片列陣2 7位於透明 導電層2 6和玻璃基片2 8之間的情況,其也可以位於上 液晶定向層2 5與透明導電層2 6之間。兩個液晶定向層 2 6、2 5之間的間隔為0 · 5微米〜1 0微米,優選為 1微米〜6微米,更優選為2微米〜4微米。微型紅、綠 、藍三基色彩色濾光片列陣2 7的每一片均由多層介質光 學薄膜製成,分別透過紅光、綠光、和藍光,而對可見區 域其他光譜則均為高反射。這些微型紅、綠、藍三基色彩 色濾光片列陣2 7的象元的數量、形狀、尺寸和排列方式 均與該矽基底晶片2 1上的金屬反射鏡列陣2 2的象元的 數量、形狀、尺寸和排列方式相一致,形成一一對應關係 。金屬反射鏡列陣2 2中的每一個不僅可作光的反射層, 同時也是金屬電極,可通過尋址驅動電路的控制使它們分 別加上不同的電壓。另外,在微型紅、綠、藍三基色彩色 濾光片列陣2 7的各象元之間的間隙8約在0 · 3〜1微 米之間,間隙8上鍍有非透明鍍層,如鋁、鉻、鎳、銅、 鐵、鋅、鈦、金、銀、始、鶴、錮、I旦、結、碳中的一種 材料或者它們的組合物,可以減少漏光。 製作時首先在一塊對角線尺寸約為1 0毫米〜5 0毫 米大小的矽基底晶片2 1上用C Μ〇S工藝製作可尋址的1237730 V. Description of the invention (6) v Improve the contrast of the image. For example, on the front surfaces of the display wafers 2 and 3, the two-t-crystal reflective color J effectively improves the wave plate when light rays with a certain taper angle are incident, but it is good (see US Patent 5,327,27). The contrast of ^ is decreased by 1 and 2 points are inserted. Mu u ^ ^ The polarizing beam splitting prism 1-knife wave plate can also effectively improve the image quality. Schematic diagram of the device for modification # & 丨 ::]. Its polarization beam splitting prism is also-: real I polarized light 2 3. This half-the wave plate 1 3. The role can rotate the c direction by 90. (you can To make = 'or to convert P-polarized light into s-polarized light). In this way, turn = I i to each silicon-based liquid crystal reflective color, and t from each of the Shiji-based liquid crystal reflective color 2; 3 t :: I Ϊ: The imaging light of 4 passes through -transmission and -reverse ft Ϊ Ϊ I ratio reaches the maximum I j and the extinction of the projection beam after combining the two imaging beams / Two-dimensional switchable color projection display ^ 咅 The cross-sectional structure i of the silicon-based liquid crystal reflective color microdisplay chip used. Type color micro display chip, which includes a silicon substrate wafer 2 1 having a product structure, a metal mirror array 2 2, a lower l-orientation layer 2 3, a liquid crystal layer 2 4, an upper liquid crystal alignment layer 2 5, and a transparent 11th Page 1237730 V. Description of the invention (7) Conductive layer 26, miniature red, green, and blue three-color color filter array 27, glass substrate 2 8 in which the silicon substrate wafer 2 1 and metal mirror array 2 2, lower liquid crystal alignment layer 2 3, liquid crystal layer 2 4, upper liquid crystal alignment layer 2 5, transparent conductive layer 2 6, glass substrate 2 8 are sequentially stacked and packaged in one body, only micro color filters are shown in the figure When the chip array 27 is located between the transparent conductive layer 26 and the glass substrate 28, it may also be located between the upper liquid crystal alignment layer 25 and the transparent conductive layer 26. The two liquid crystal alignment layers 2 6, 2 The interval between 5 is 0.5 μm to 10 μm, preferably 1 μm to 6 μm, and more preferably 2 μm to 4 μm. Each of the miniature red, green, and blue three-primary color filter arrays 2 7 One piece is made of multilayer dielectric optical film, which transmits red, green, and blue light, and Other spectra are highly reflective. The number, shape, size, and arrangement of these miniature red, green, and blue primary color filter arrays 27 are the same as those of the metal mirror on the silicon substrate 21 The number, shape, size, and arrangement of the pixels of the array 22 are consistent, forming a one-to-one correspondence. Each of the metal mirror arrays 22 can be used not only as a reflective layer of light, but also as metal electrodes. They are controlled by the addressing drive circuit so that they are respectively applied with different voltages. In addition, the gap 8 between the pixels of the miniature red, green, and blue three-color color filter array 27 is about 0 · 3 ~ Between 1 micron, the gap 8 is plated with a non-transparent plating layer, such as aluminum, chromium, nickel, copper, iron, zinc, titanium, gold, silver, starting, crane, hafnium, dendrite, junction, carbon, or Their composition can reduce light leakage. Firstly, the silicon substrate wafer 21 with a diagonal size of about 10 mm to 50 mm is firstly manufactured by C MOS process.
第12頁 1237730 五、發明說明(8) 象元陣列,然後在各象元上鍍上金屬反射鏡2 2 。另外在 一塊與該矽基底晶片2 1尺寸相仿的透明玻璃基片2 8上 ,用光刻和真空鍍膜相結合的方法,製作微型紅、綠、藍 三基色彩色濾光片列陣2 7。將該微型紅、綠、藍三基色 彩色濾光片列陣2 7作平面化處理後,在其上再鍍上一層 透明導電層2 6 ,然後再與該具有金屬反射鏡列陣2 2的 矽基底晶片2 1 —起在其表面均塗布上一層液晶定向層2 3、2 5 (材料為聚 te胺或類似材料),並經過定向處 理(機械磨擦或其他方法)後,將這兩塊基底面對面的合 在一起,中間間隔距離在0 · 5微米至1 0微米之間。在 中間間隔中灌注進液晶2 4 ,並將周邊密封,即製成微型 濾光片列陣與L C〇S基片的組合器件。 第五A圖及第五B圖為彩色濾光片列陣2 7的平面排 列分佈示意圖。每個象元的形狀均為正方形,每三個象元 (紅、綠、藍)以品字型如第五A圖者,或以梳狀(如第 五B圖所示)排列方式組成一個基本象素單元,且呈週期 排列,進而構成整個顯示晝面。 第六圖及第六A圖所示,矽基液晶反射式彩色微顯示 晶片的微型彩色濾光片列陣2 7的每個基本象素單元形狀 分別為由紅、綠、藍三個長與寬之比約為3的長方形微型 濾光片組成的正方形結構,整個列陣為以該正方形結構為 基本單元緊密排列而成的方形結構。且其顯示晝面圖像的 變形失真度更小於第五A圖及第五B圖之象元形狀及排列Page 12 1237730 V. Description of the invention (8) Pixel array, and then metal reflector 2 2 is plated on each pixel. In addition, on a transparent glass substrate 28 having a size similar to that of the silicon substrate wafer 21, a combination of photolithography and vacuum coating was used to fabricate miniature red, green, and blue three-color color filter arrays 27. After planarizing the miniature red, green, and blue three-color color filter array 27, a transparent conductive layer 26 is plated thereon, and then the micro-red, green, and blue primary color filter array 27 is coated with the metal mirror array 22. Silicon substrate wafer 2 1—Coat a layer of liquid crystal alignment layer 2 3, 2 5 on the surface (material is polyteamine or similar material), and after orientation treatment (mechanical friction or other methods), the two pieces The substrates are brought together face-to-face, with an intermediate distance between 0.5 μm and 10 μm. Liquid crystal 24 is poured into the middle interval and the periphery is sealed to form a combined device of a micro filter array and a LCOS substrate. Figures 5A and 5B are schematic diagrams of the plane arrangement distribution of the color filter array 27. The shape of each pixel is a square, and every three pixels (red, green, and blue) are formed in a font shape as shown in the fifth A picture, or in a comb-like arrangement (as shown in the fifth B picture). The basic pixel units are arranged in a cycle to form the entire display day. As shown in FIG. 6 and FIG. 6A, the shape of each basic pixel unit of the miniature color filter array 27 of the silicon-based liquid crystal reflective color micro display chip is respectively composed of three long and red, green, and blue A rectangular structure composed of rectangular micro-filters with a width ratio of about 3, and the entire array is a square structure with the square structure as a basic unit. And the distortion and distortion of the displayed daytime image is smaller than the shape and arrangement of the pixels in the fifth A and fifth B pictures.
第13頁 1237730 五、發明說明(9) 方式所顯示之晝面圖像。 而且,第六A圖之微型彩色濾光片列陣2 7通過保持 紅、綠、藍三個象元的寬度之和不變(等於其長度)的前 提下,以適當改變這三個象元的寬度之比,使紅、綠、藍 微型濾光片具有合適的面積比,更可以調整投影圖像的色 調平衡。例如:目前的投影顯示系統的照明光源通常為超 高壓汞燈,而超高壓汞燈的發射光譜中紅光的光譜分量明 顯低於綠光和藍光的光譜分量,因此可以通過適當增加紅 色象元的長方形的寬度,相應減小綠色和藍色象元的寬度 ,以提高紅色象元的面積占總面積的比例,從而進行色補 的 比 寬 長 的 的 狀 形 元 象 的 示 所 圖 A 六 第 。及 衡圖 平六 色第 到, 達但 償 \ ο 最制 的限 狀的 形度 元尺 象子 其分 ,晶 說液 來或 件制 器限 示的 顯藝 型工 微工 人; 口 #力 對子 。 電 高微 過到 如受 值度 比尺 成C 集素 步象 一少 進較 的於 件用 器適 示只 顯狀 於形 利元 不象 狀的 形示 元所 象圖 的A 高六 過第 比如 寬, 長以 此所 因。 即 /IV 素 象 多 較 451- 於 合 適 vUtui 種 一 是 。的 示示 顯所 像圖 圖 A 的七 第 度及 析圖 解七 低第 較 即 片排 日BB和 示狀 顯形 微元 色象 彩個 式三 射藍 反 、 晶.綠 液' 基紅 碎之 的陣 示列 顯片 像光 圖爐 丨色 度彩 析型 解微 高其 紅構 由結 為形 均邊 狀六 形的 元成 口g一 素片 象光 本濾 基型 個微 每的 ,形 形邊 邊四 四行 行平 平個 為三 均藍 式、 方綠 列、 式 方 狀 窩 蜂 呈 元 單 本 基 為 構 結 形 邊 六 該 以 為。 陣成 列而 個列 整排 且密 ,緊Page 13 1237730 V. Description of the daytime image displayed in the method (9) of the invention. In addition, the miniature color filter array 27 of the sixth A picture can appropriately change the three pixels by keeping the sum of the widths of the three pixels of red, green, and blue unchanged (equal to their length). The width ratio of the red, green, and blue micro-filters has an appropriate area ratio, and the tonal balance of the projected image can be adjusted. For example, the current illumination source of projection display systems is usually ultra-high pressure mercury lamps, and the spectral components of red light in the emission spectrum of ultra-high pressure mercury lamps are significantly lower than the spectral components of green and blue light, so red pixels can be appropriately increased by The width of the rectangular shape, correspondingly reduce the width of the green and blue pixels, in order to increase the proportion of the area of the red pixels to the total area, so as to perform color compensation. No. And the balance of the first six colors of the figure, Da Dan compensation \ ο the most restrictive shape of the shape of the yuan ruler, the crystal, said that the liquid or the limit of the display of the artisanal micro-workers; 口 # 力 对child. The electric height is too high. If the value is smaller than the scale, the aerosol step is less advanced, and the device is suitable for the device. It is only displayed in the figure of the shape element that is not like the shape element. The first is width and length. That is, there are more / IV pixel images than 451- for suitable vUtui. One is. The seventh degree and analysis of the seventh degree of the image and the seventh and the third element of the image are shown in Figure A. The row BB and the visible micro-element color image color three shots of blue reflection and crystal. Green liquid 'based red broken Array display film image photograph furnace 丨 Chroma color analysis type solution is slightly high, its red structure is composed of a uniform edge-shaped hexagonal element, a plain film, a light-based filter, a micro-shaped, shaped edge Edge four, four rows, flat and flat are three uniform blue type, square green column, square square nest bee with elementary basic structure as the edge shape six should think. Arrays and rows are dense and dense.
第14頁 1237730 五、發明說明(ίο) 通過調整這基本象素單元的六邊形的内角度值和各邊 長,可以使其等效長度和等效寬度之比接近於1 。而且通 過調整這基本象素單元的六邊形的内角度值和各邊長,可 以改變各顏色的象元在總顯示面積中所占的比例,從而可 以進行色補償,調整色調平衡。這種蜂窩狀排列結構的優 點是各象元的平行四邊形的邊長長度接近,因此有利於做 得更密集,以得到更多象素,更高解析度。 第七圖及第七A圖所示排列結構的一種具體構形,它 的每個基本象素單元的紅、綠、藍三個微型濾光片的形狀 均為菱形,邊長通常在4〜1 0微米之間。綠色象元3 1 、藍色象元3 2的兩個菱形的形狀相同,各有一個内角a 在50°〜56°之間,優選為53°左右,而另一個象 元,即紅色象元33則有一個内角b在70°〜78°之 間,優選為74 ◦左右。這樣,這個六邊形的基本象素單 元在以蜂窩狀結構排列起來後,其每個基本象素單元的等 效長度和等效寬度之比非常接近於1 ,即這個結構不會帶 來圖形失真變形。而且,各象元菱形的邊長相等,有利於 器件的進一步集成。另外,紅色象元3 3的面積比綠色象 元3 1和藍色象元3 2的面積略大(紅色象元的面積約是 綠色象元面積的1 · 1 1倍),這有助於改善由於照明光 源中紅光光譜能量較弱引起的投影圖像中紅色分量缺乏的 視覺效果。 另外,在微型濾光片之間的間隙3 4上(間隙距離約 在0 · 3〜1微米之間)鑛上一層非透明鍍層,如铭、鉻Page 14 1237730 V. Description of the Invention (ίο) By adjusting the internal angle value and the length of each side of the hexagon of this basic pixel unit, the ratio of its equivalent length and equivalent width can be close to 1. Moreover, by adjusting the internal angle value and the length of each side of the hexagon of this basic pixel unit, the proportion of pixels of each color in the total display area can be changed, so that color compensation can be performed and the tone balance can be adjusted. The advantage of this honeycomb arrangement is that the side lengths of the parallelograms of each pixel are close, so it is conducive to make it denser to get more pixels and higher resolution. A specific configuration of the arrangement shown in Figures 7 and 7A. The shape of the three red, green, and blue micro-filters of each basic pixel unit are rhombuses, and the side length is usually 4 ~ Between 10 microns. The two rhombuses of the green pixel 3 1 and the blue pixel 3 2 have the same shape, each having an internal angle a between 50 ° and 56 °, preferably about 53 °, and the other pixel, the red pixel 33 has an internal angle b between 70 ° and 78 °, preferably about 74 °. In this way, after the hexagonal basic pixel units are arranged in a honeycomb structure, the ratio of the equivalent length and equivalent width of each basic pixel unit is very close to 1, that is, this structure will not bring graphics Distortion. Moreover, the side lengths of the rhombuses of each pixel are equal, which is beneficial to the further integration of the device. In addition, the area of the red pixel 3 3 is slightly larger than that of the green pixel 31 and the blue pixel 32 (the area of the red pixel is about 1.1 times the area of the green pixel), which helps Improve the visual effect of the lack of red component in the projected image due to the weak red light spectral energy in the illumination light source. In addition, a layer of non-transparent coating, such as Ming, chromium, is deposited on the gap 3 4 between the micro-filters (the gap distance is about 0 · 3 ~ 1 micron).
第15頁 1237730 五、發明說明(11) 、鎳、銅、鐵、鋅、鈦、金、銀、翻、鎢、钥、组、錯、 碳中的一種材料或者它們的組合物,可以減少漏光’從而 進一步改善該器件的圖像質量,提高圖像對比度和信噪比 〇 另,為使三維/二維可切換的彩色投影顯示裝置中之 兩片矽基液晶反射式彩色微顯示晶片所顯示的色彩的色階 灰度更豐富,特別可以使這兩片矽基液晶反射式彩色微顯 示晶片的其中一片具有紅綠藍的三基色的微型彩色濾光片 列陣,而另一片則具有青、黃、品紅的三基色微型彩色濾 光片列陣,其製造方法和紅綠藍的三基色的微型彩色濾光 片列陣相同,因此可以構成一個六基色的彩色顯示系統, 使顯示的圖像具有更寬的色度範圍,可以呈現出更豐富、 更生動、更逼真的色彩來。本發明的這套投影顯示裝置通 過控制輸入到碎基液晶反射式彩色微顯不晶片2和3上的 圖像資訊,可以使投影顯示圖像在二維六基色平面顯示和 三維立體顯示間方便地自由切換。另在投射到各矽基液晶 反射式彩色微顯示晶片上的照明光,除一部分被該晶片調 製後改變了其偏振方向,去作投影顯示用外,其餘部分( 包括被微型彩色濾光片列陣反射回去的光,和沒有被液晶 改變偏振方向的光)因沒有改變偏振方向,而被按原光路 反射回照明系統,通過一定的裝置可以將該部分光再次反 射回來,加以重復利用,從而可有效地提高光的利用效率 ,提高投影顯示圖像的亮度。 綜上所述,藉由本發明之「三雄/二維可切換的彩色Page 15 1237730 V. Description of the invention (11) A material or a combination of carbon, nickel, copper, iron, zinc, titanium, gold, silver, iron, tungsten, metal, group, copper, or carbon, can reduce light leakage 'Thereby further improving the image quality of the device, increasing the image contrast and the signal-to-noise ratio. In addition, two silicon-based liquid crystal reflective color microdisplay chips in a three-dimensional / two-dimensional switchable color projection display device are displayed. The color gradation of gray color is more abundant, especially one of the two silicon-based liquid crystal reflective color micro display chips has a red, green and blue three-color micro-color filter array, and the other has a cyan The three primary color micro color filter arrays of yellow, magenta and magenta are manufactured in the same way as the three primary color micro color filter arrays of red, green, and blue. Therefore, a six-primary color color display system can be constructed. The image has a wider chromaticity range, which can present richer, more vivid, and more realistic colors. The projection display device of the present invention can control the image information input to the broken base liquid crystal reflective color micro display chips 2 and 3, so that the projection display image can be conveniently displayed between a two-dimensional and six-primary color plane display and a three-dimensional stereo display. To switch freely. In addition, a part of the illumination light projected on each silicon-based liquid crystal reflective color micro display chip is changed by the chip to change its polarization direction for projection display, and the rest (including the array of micro color filters) The light reflected by the array and the light whose polarization direction has not been changed by the liquid crystal) are not reflected by the liquid crystal, but are reflected back to the lighting system according to the original light path. Through a certain device, this part of the light can be reflected back and reused. It can effectively improve the utilization efficiency of light and increase the brightness of the projection display image. To sum up, with the present invention,
第16頁 1237730 五、發明說明(12) 投影顯示裝置」而有如下有益效果: 1 · 可以方便、簡單、低成本地實現彩色立體顯示。 2 · 可以實現多基色的彩色顯示。 3 · 可以方便地在三維立體彩色顯示模式和二維多基色 的彩色顯示模式間自由切換。 4 ·簡化光學系統,提高系統可靠性。 惟以上所述僅為本發明之較佳可行實施例,非因此拘 限本發明之專利範圍,故舉凡運用本發明之說明書及圖示 内容所為之等效結構變化,均同理皆包含於本發明之範圍 内,給予陳明。Page 16 1237730 V. Description of the invention (12) Projection display device "has the following beneficial effects: 1 · It is convenient, simple and low-cost to realize color stereo display. 2 · Multi-primary color display is possible. 3 · Can easily switch between 3D stereo color display mode and 2D multi-primary color display mode. 4 · Simplify the optical system and improve system reliability. However, the above are only the preferred and feasible embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Therefore, any equivalent structural changes made by using the description and illustrated contents of the present invention are included in the same reason. Within the scope of the invention, Chen Ming was given.
第17頁 1237730 圖式簡單說明 第一圖係本發明的三維/二維可切換的彩色投影顯示裝置 的原理示意圖。 第二圖係本發明的一個實施例的示意圖。 第三圖係本發明的另一個實施例的示意圖 第四圖係本發明的矽基液晶反射式彩色微顯示晶片的截面 結構不意圖。 第五A圖為彩色濾光片列陣的品字型排列平面分佈示意圖 第五B圖為彩色濾光片列陣的梳狀排列排列平面分佈示意 圖 第六圖係本發明的矽基液晶反射式彩色微顯示晶片中的微 型濾光片列陣的正方形排列平面分佈示意圖 第六A圖係本發明的微型濾光片列陣的正方形排列局部放 大圖 第七圖係本發明的矽基液晶反射式彩色微顯示晶片中的微 型濾光片列陣的蜂窩狀排列平面分佈示意圖 第七A圖係本發明的微型濾光片列陣的蜂窩狀排列局部放 大圖 【圖示中參考號數】 本發明 偏振分光膜1 液晶層24 矽基液晶反射式彩色微顯 示晶片2 、3 上液晶定向層25 透明導電層26 投影物鏡4 微型紅、綠、藍三基色 S方向線偏振光6 彩色濾光片列陣2 7Page 17 1237730 Brief description of the drawings The first diagram is a schematic diagram of the three-dimensional / two-dimensional switchable color projection display device of the present invention. The second figure is a schematic diagram of an embodiment of the present invention. The third diagram is a schematic diagram of another embodiment of the present invention. The fourth diagram is a cross-sectional structure of the silicon liquid crystal reflective color microdisplay wafer of the present invention. The fifth diagram A is a schematic diagram of the planar layout of the color filter array of the character-shaped arrangement. The fifth diagram B is the plane layout of the comb-like array of the color filter array. The sixth diagram is a silicon-based liquid crystal reflection type of the present invention. Schematic diagram of the square arrangement of micro-filter arrays in a color microdisplay wafer. Figure 6A is a partially enlarged view of the square arrangement of the micro-filter array of the present invention. Schematic diagram of the planar layout of the honeycomb arrangement of the micro filter array in the color micro display wafer. Figure 7A is a partial enlarged view of the honeycomb arrangement of the micro filter array of the present invention. [Reference number in the figure] The present invention Polarizing beam-splitting film 1 Liquid crystal layer 24 Silicon-based liquid crystal reflective color micro display chip 2, 3 Upper liquid crystal alignment layer 25 Transparent conductive layer 26 Projection objective lens 4 Miniature red, green, and blue three primary colors S-direction linearly polarized light 6 Color filter column Front 2 7
第18頁 1237730 圖式簡單說明 P方向線偏振光7 光線8、9、1 0 偏振分光棱鏡組1 1 偏振分光棱鏡12 金屬反射鏡列陣2 2 下液晶定向層2 3 玻璃基片2 8 綠色象元3 1 藍色象元3 2 紅色象元3 3 間隙3 4Page 18 1237730 Schematic description of P-direction linearly polarized light 7 Rays 8, 9, 1 0 Polarizing beam splitting prism group 1 1 Polarizing beam splitting prism 12 Metal mirror array 2 2 Lower liquid crystal alignment layer 2 3 Glass substrate 2 8 Green Pixel 3 1 Blue Pixel 3 2 Red Pixel 3 3 Gap 3 4
第19頁Page 19
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