TWI363238B - Patterned electro-optical shutter devices - Google Patents

Patterned electro-optical shutter devices Download PDF

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TWI363238B
TWI363238B TW97107092A TW97107092A TWI363238B TW I363238 B TWI363238 B TW I363238B TW 97107092 A TW97107092 A TW 97107092A TW 97107092 A TW97107092 A TW 97107092A TW I363238 B TWI363238 B TW I363238B
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patterned
liquid crystal
alignment
substrate
electro
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TW97107092A
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TW200937086A (en
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Shie Chang Jeng
Chia Wei Kuo
Yan Rung Lin
Chi Chang Liao
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Ind Tech Res Inst
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1363238 九、發明說明: , .【發明所屬之技術領域】 本發明係有關於一種電光元件裝置,特別有關於一種 - 液晶控制的圖案化電光開關元件裝置。 【先前技術】 .電光閘或電光開關(electro-optical shutter)為控制光線 通過與否的裝置。許多材料的物理性質,例如非線性晶體 (non-linear crystal)或液晶材料,即可應用於電光開.關裝 φ 置。典型的液晶顯示器的結構包括一上電極基板與一下電 ' 極基板對向設置。一液晶層夾置於上、下電極基板之間。 ^ 藉由配相層與液晶層介面間的錫鍵力(anchor force)造成的 配向作用及外加電場的效應’使液晶顯不為達到顯不影像 的功能。再者,由於其利用電場的作用使液晶層決定光線 的穿透與否,因此又具有電光開關的功能。 .以傳統的垂直配向型液晶顯示器為例,第1圖係顯示 垂直配向型液晶顯示器結構的剖面示意圖。請參閱第1 • 圖,傳統的垂直配向型液晶顯示器1包括一上電極基板10 與一下電極基板30對向設置,其間夾置一液晶層20。上 電極基板10與下電極基板30分別包括一電極層(未繪 示),以提供驅動液晶層的電場。一上配向層15設置於上 電極基板10和液晶層20之間,提供液晶分子22 —致性的 配向及預傾角。一下配向層25設置於下電極基板30和液. 晶層20之間,以提供液晶分子22 —致性的配向及預傾角。 一上偏光板5貼附於上電極基板10的外側表面,以及一下 1363238 • 偏光板35貼附於下電極基板30的外側表面。於操作時, 施加一特定的電壓於上、下電極基扳1.0、30之間,液晶層 ' 20中液晶分子22因受電場的影響而轉向,而改變原狀態 - 的光學性質。 應注意的是,傳統的垂直配向型液晶顯示器1的結構 必須依賴上配向層15與下配向層25提供液晶分子初始的 垂直配向。·在配向層的製程上,習知技術係先先成一高分 子膜(例如聚亞醯.胺PI),在經特定方向的摩擦(rubbing)配 φ 向。因此,傳統的垂直配向型液晶顯示器因受限於配向模 的材料及製程,耗費相當大的製造成本。因此,業界企需 • 一種免除傳統配向層的液晶顯示器汲電光開關元件,.以降 低材料及製造成本,並進一步拓展液晶元件的應用領域。 【發明内容】 本發明實施例提供一種液晶控制的圖案化電光開關元 件裝置,藉由基板局部表面性質的差異造成局部性吸附而 使配向物質吸附在局部區域,在電場的作用下,造成圖案 • 化的光學性質差異的電光開關元件。 本發明之一實施例提供一種圖案化的電光開關裝置, 包括:一第一基板與一第二基板對向設置’其間夾置一液 ' 晶層;以及一圖案化的配向物質群聚設置於該第一基板與 該液晶層間的一介面間;其中該圖案化的配向物質群聚使 該液晶層内的液晶分子呈均勻一致性的排列。 ’. 本發明另一實施例提供一種圖案化的電光開關裝置, 包括:一第一基板與一第二基板對向設置,其間夾置一液 1363238 J 晶層;一圖案化的電極層設置於該第一基板上,且該第一 * 基板與該圖案化的電極層的表面具有不同的極性,例如一 ' 個是具有極性的表面,而另外一個為非極性表面;以及一 - 圖案化的配向物質群聚選擇性地吸附於該圖案化的電極層 的表面,或吸附於該第一基板的表面;其中該圖案化的配 向物質群聚使該液晶層内的液晶分子呈均勻一致性的排 列。應注意的是,此圖案化的電光開關裝置更包括一額外 的圖案化電極層設置於該第二基板上,且該第二基板與該 $ .額外的圖案化電極層的表面具有不同的極性.;以及一額外 的圖案化配向物質群聚選擇性地吸附於該額外的圖案化電 -,極層的表面,或吸附於該第二基板的表面;其中該圖案化 的配向物質群聚使該液晶層内的液晶分子呈均勻一致性的 排列。 本發明另一實施例提供一種圖案化的電光開關裝置, 包括::一第一基板與一第二基板對向設置,其間夾置一液 晶層;一全面性的電極層設置於該第一基板上,其表面經 鲁 過表面改質處理後而具有不同極性的一第一區域與一第二 區域;以及一圖案化的配向物質.群聚選擇性地吸附於該第 一區域,或吸附於該第二區域;其中該圖案化的配向物賢 ' 群聚使該液晶蜃内的液晶分子..呈均勻一致性的排列:。.應注, 意的是,.此圖案化的電光開關裝置更包括一額外的電極層... 設置於該第二基板上,且該額外的電極層的表面經過表面 改質處理後而具有不同極性的一第三區域與一第四區域; 以及一額外的圖案化配向物質群聚選擇性地吸附於該第三 區域,或吸附於該第四區域;t中社 聚使該液晶層内的液晶分子呈i 木化的配向物質群 為使本發明能更明顯易懂,排列。 所附圖式,作詳細說明如下: 4寸牛貫施例’並配合 【實施方式】 以下以各實施例並伴隨著圖式說明為太 明之參考依擄。在圖式或說明查 \做為本發 分皆使用相同之圖號.。且在圖式二施目似或相同之部 度可擴大,並以簡化或是方:中例之形狀或是厚 將以分別描.述說明值得注意的是,圖^ 牛所f技術領域中具有通常知識者所:的 ^ 彳找之僅為揭示本發明使用之特定方 式,其亚非用以限定本發明。 關=:係1 貝示本發明之-實施例的圖案化的電光開 關裝請a包括-第一化的電光開 置,其間夹置-液晶層12〇。__mi30對向設 圖案化的電極層140設置 :弟-基板11G上’其中電極層14()的表面性 ^陶的表祕質轉,制確地說,其分财有不^ °》生或不同的親水性與疏水性。配向物質群聚150 形成於電極層14〇的表面上,並與液晶層㈣間 2 〃面其中該圖案化的配向物質群聚15()使該液晶 曰12〇内的液晶分子呈均勻,一致性的排列。 1363238 第2B圖係顯示本發明另一實施例的圖案化的電光開 • 關裝置的剖面示意圖。請參閱第2B圖,圖案化的電光開 關裝置100b包括一第一基板n〇與一第二基板13〇對向設 • 置,其間夾置一液晶層120。一圖案化的電極層14〇設置 於第一基板110上,其中電極層14〇的表面性質與第一基 板110的的表面性質相異,更明確地說,其分別具有不同 的表面極性,例如是具有極性的表面,或為非極性表面; 或具有不同的親水性(hydrophilic)或疏水性 φ (hydrophobic)。配向物質群聚15〇,選擇性地形成於第一某 板110的表面上,並與液晶層12〇間具有一介面,其中^ 圖案化的配向物質群聚15〇,使該液晶層12〇内的液晶分= 呈均勻一致性的排列。 第2C圖係顯示本發明又一實施例的圖案化的電光房 關裝置的剖面示意圖。請參閱第2C圖,圖案化的電光二 關裝置職包括-第一基板11G與一第二基板⑽對向韻 置’其間夾置-液晶層12G—電極層14〇,全面性地形成 於第-基板11G上’其中全面性電極層⑽,的表面經一圖 案化表面處理步驟,或者塗佈一圖案化表面改質層於1 上。其中表面處理步驟包含電漿、離子束、電子束或光^ ”面改:質處理、;其中塗佈表面改質層包括塗佈= ^屬、妨分子等材料,使其表面分成表面性質相里 :域鮮二.區域’更明確地說,其分別具有不 =:細的親水性與疏水性。配向物質群聚15〇選 扪也形成於全面性電極層14〇,的第一區域的表面上,並 1363238 ' 與液晶層120間具有一介面,其中該圖案化的配向物質群 、 聚150使該液晶層120内的液晶分子呈均勻一致性的排列9 ' 應注意的是,液晶層120可視為以液晶分子為主體的 混合物,其中可選擇性地添加光學主動材料(optically active substance)、配向物質、雙色性染料(dichroic dye)、 高分子、或其他具光學性質的添加物。 根據本發明之一實施例’配向,物質群聚的材質包括粒 子材料、高分子材料或酸性材料。更明確地說,例如藉由 _ 多面體石夕氧烧寡聚物(polyhedral oligomeric silsesquioxanes,簡稱P0SS)或其衍生物,混於液晶溶液 中。於一實施例中,可選用含苯乙基的多面體矽氧烷寡聚.:+ 物的混合物(phenethyl-POSS Cage Mixture)或含八甲基的 多面體石夕氧烧寡聚物(octamethyl-POSS)或丙基-七-異丁基 取代之多面體石夕氧烧寡聚物(propyl-Hepta-isobutyl substituted P0SS )例如.:含乙胺-丙基異丁基胺的多面體矽 氧烧寡聚物(aminoethyl-aminopropylisobutyl_P〇SS)做為配 • 向物質。配向物質依環境影響而選擇以顆粒或膜的形式群 聚。例如’於本發明之一實施例,POSS可為微粒的形式群 聚,其平均粒徑範圍大抵介於0.001微米至〇·2微米之間。 再者’配向物質群聚的含量佔總體液晶層:質量的 0.01%,20% 〇 此外’除POSS微粒之外,其他具等效的配向物質群 聚’無論透明或不透明、導體或非導體、有機或無機、固 悲或液態’✓、要月b使液晶分子選擇性的配向,皆可應用本 1363238 發明的實施例中。 應注意的是,為了使配向物質群聚能選擇性地形成於 電極基板表面。亦即,基板本身的材質包括玻璃基板或高 分子基板(例如PET)。電極本身亦包括氧化銦錫(IT〇)、氣 化銦鋅(ΙΖΟ)、金屬材料或導電高分子材料。因此,需配合 電極基板表面的極性,而選擇親水性(hydr〇phiiic)或疏水性 (hydrophobic)的配向物質群聚材料。 第3A和3B圖分別顯示根據本發明之一實施例的圖案 • 化的電光開關裝置於操作時電壓開態與關態的示意圖。根 據本發明之一實施例,圖案化的電光開關裝置2〇〇的液晶 層260包括負型液晶分子265與配向物質的混合溶液。於 下電極基板210表面形成與基板極性不同的電極240 (亦 即’如第2A和2ΒΪ的下基板結構)或經過局部表面處理(如 第2C圖的下基板),使得具有垂直配向物質選擇性地群聚 並形成於下基板表面。再者,於上電極基板23〇表面形成 與基板極性不同的電極240或經過局部表面處理,使得具 • 有垂直配向物質250選擇性地群聚並形成於上基板表面。 根據本發明之一實施例,上、下基板上的圖案化電極,可 具有相同的圖案且位於相對應的位置。 ·· 再者,可選擇搭配極化方向不同的偏光板205和,235 ” 分別貼附於上基板與下基板的外侧.。例如,第一偏光板205 的偏光轴與第二偏光板235 .的偏光轴,彼此相互垂真。於 才呆作時’當外加電場為零或小於驅動液晶分子的闊電壓 (threshold voltage)時,於對應於有垂直配向物質群聚的區 1363238 域(在此為電極位置處)液晶分子因為垂直排歹,】而形成p *' 態,而無垂直配向物質群聚的區域(在此為無電極位置處) 因液晶分子水平排列而形成亮態,故此液晶元件可形成圖 案化的明暗區域’如第3A圖所不。另一方面,當外加電 壓大於驅動液晶分子的閥電壓(threshold voltage)時,於對 應電極位置處形成電場’驅動液晶轉向成水平排列、無論 有無電極的區域’皆為亮態,如第3B圖所示.《&gt;因此,電 光開關裝置200無需形成傳統的配向層,即可達到在電場 _ 的作用下’造成圖案化的光學性質差異的電光開關元件。 應注意的是’本實施例的電光開關裝置200可進—步 搭配其他型式的光學板’例如圓形極化偏光板或相位補償 膜(phase compensation film),以提升光學效能因應不同類 趣的用途。 第4A和4B圖分別顯示根據本發明另一實施例的圖案 化的電光開關裝置於操作時電壓開態與關態的示意圖。根 據本發明另一實施例,圖案化的電光開關裝置300的液晶 鲁層320包括一主客式液晶(Guest/host liquid crystal)混合溶 液與配向物質的混合溶液。在此例中,主客式液晶混合溶 液係以負型液晶分子325為主體,雙色性染料分子324為 客體。於下:電極基板310表:面形成極性不同的電極340 (亦 即’如第2A和2B圖的下基板結構)或經過局部表面處理(如 第2C圖的下基板),使得配向物質選擇性地群聚並形成於 下基板表面。再者,於上電極基板330表面形成極性不同 的電極340或經過局部表面處理,使得配向物質322選擇 12 1363238 ϋ地群聚並形成於上基板表面。根據本發明之一實施例, &quot; 上、下基板上的圖案化電極,可具有相同的圖案且位於相 詩應的位置。 於操作時,當外加電場為零或小於驅動液晶分子的閥 電壓(threshold voltage)時,於對應於有垂直配向物質群聚 的區域(在此為電極位置處),液晶分子因為垂直排列而使 得染料分子也為垂直排列,此時染料分子對入射光線有較 小的吸牧雨形成亮態,而無垂直配向物質群聚的區域(在此 鲁 為無電極位置處)因液晶分子水平排列而使得染料分子也 為水平排列,此時染料分子對入射光線有較大的吸收而形1363238 IX. Description of the Invention: [Technical Field] The present invention relates to an electro-optic device, and more particularly to a liquid crystal controlled patterned electro-optical switching device. [Prior Art] An electro-optical shutter or an electro-optical shutter is a device that controls the passage of light. The physical properties of many materials, such as non-linear crystals or liquid crystal materials, can be applied to electro-optical opening and closing. A typical liquid crystal display structure includes an upper electrode substrate disposed opposite the lower electrode substrate. A liquid crystal layer is sandwiched between the upper and lower electrode substrates. ^ The effect of the alignment caused by the anchor force between the phase-matching layer and the liquid crystal layer interface and the effect of the applied electric field make the liquid crystal display not function as a visible image. Furthermore, since the liquid crystal layer determines the penetration of light by the action of the electric field, it has the function of an electro-optical switch. Taking a conventional vertical alignment type liquid crystal display as an example, Fig. 1 is a schematic cross-sectional view showing the structure of a vertical alignment type liquid crystal display. Referring to FIG. 1 , the conventional vertical alignment type liquid crystal display 1 includes an upper electrode substrate 10 disposed opposite to the lower electrode substrate 30 with a liquid crystal layer 20 interposed therebetween. The upper electrode substrate 10 and the lower electrode substrate 30 respectively include an electrode layer (not shown) to provide an electric field for driving the liquid crystal layer. An upper alignment layer 15 is disposed between the upper electrode substrate 10 and the liquid crystal layer 20 to provide a uniform alignment and pretilt angle of the liquid crystal molecules 22. The alignment layer 25 is disposed between the lower electrode substrate 30 and the liquid crystal layer 20 to provide a uniform alignment and pretilt angle of the liquid crystal molecules 22. An upper polarizing plate 5 is attached to the outer surface of the upper electrode substrate 10, and a lower portion 1363238. The polarizing plate 35 is attached to the outer surface of the lower electrode substrate 30. During operation, a specific voltage is applied between the upper and lower electrode bases between 1.0 and 30, and the liquid crystal molecules 22 in the liquid crystal layer '20 are turned by the influence of the electric field to change the optical properties of the original state. It should be noted that the structure of the conventional vertical alignment type liquid crystal display 1 must rely on the upper alignment layer 15 and the lower alignment layer 25 to provide an initial vertical alignment of liquid crystal molecules. • In the process of the alignment layer, the conventional technique first forms a high molecular film (e.g., poly-anthracene amine PI), and is rubbed in a specific direction with a φ direction. Therefore, the conventional vertical alignment type liquid crystal display consumes a considerable manufacturing cost due to limitation of the material and process of the alignment mold. Therefore, there is a need in the industry for a liquid crystal display (electro-optical switching element) that eliminates the conventional alignment layer, thereby reducing material and manufacturing costs, and further expanding the application field of liquid crystal elements. SUMMARY OF THE INVENTION Embodiments of the present invention provide a liquid crystal controlled patterned electro-optical switching element device, which causes localized adsorption by a local surface property difference of a substrate to adsorb an alignment substance in a local region, and causes a pattern under the action of an electric field. Electro-optical switching elements with different optical properties. An embodiment of the present invention provides a patterned electro-optic switch device, comprising: a first substrate and a second substrate disposed opposite to each other with a liquid layer sandwiched therebetween; and a patterned alignment material group disposed at Between the first substrate and an interface between the liquid crystal layers; wherein the patterned alignment materials are grouped to uniformly and uniformly align the liquid crystal molecules in the liquid crystal layer. According to another embodiment of the present invention, a patterned electro-optical switch device includes: a first substrate disposed opposite to a second substrate, wherein a liquid 1363238 J layer is interposed; and a patterned electrode layer is disposed on On the first substrate, the first * substrate and the surface of the patterned electrode layer have different polarities, for example, one is a surface having a polarity, and the other is a non-polar surface; and a - patterned The group of alignment materials is selectively adsorbed on the surface of the patterned electrode layer or adsorbed on the surface of the first substrate; wherein the patterned alignment material is grouped to make the liquid crystal molecules in the liquid crystal layer uniform arrangement. It should be noted that the patterned electro-optic switch device further includes an additional patterned electrode layer disposed on the second substrate, and the second substrate has a different polarity from the surface of the additional patterned electrode layer. And an additional patterned alignment material group selectively adsorbing on the surface of the additional patterned electro-polar layer, or adsorbed on the surface of the second substrate; wherein the patterned alignment material is clustered The liquid crystal molecules in the liquid crystal layer are arranged in a uniform uniformity. Another embodiment of the present invention provides a patterned electro-optical switch device, including: a first substrate disposed opposite to a second substrate with a liquid crystal layer interposed therebetween; and a comprehensive electrode layer disposed on the first substrate a surface of the first region and a second region having different polarities after the surface modification treatment; and a patterned alignment material. The cluster is selectively adsorbed to the first region, or adsorbed to The second region; wherein the patterned alignment of the alignment is such that the liquid crystal molecules in the liquid crystal cell are arranged in a uniform uniformity: It should be noted that the patterned electro-optic switch device further includes an additional electrode layer disposed on the second substrate, and the surface of the additional electrode layer is subjected to surface modification treatment. a third region and a fourth region of different polarities; and an additional patterned alignment material group selectively adsorbed to the third region or adsorbed to the fourth region; t is concentrated in the liquid crystal layer The liquid crystal molecules are i-woodized aligning substance groups in order to make the invention more understandable and alignable. The drawings are described in detail as follows: 4 inch bovine embodiment </ br> and the following [Embodiment] The following examples are accompanied by the description of the drawings for the reference of Taiming. Use the same figure number in the drawing or description check. And in the second embodiment, the degree of the same or the same can be expanded, and the simplified or square: the shape of the example or the thickness will be described separately. It is worth noting that the figure ^ in the technical field of the cow The general knowledge of the present invention is only to reveal the specific mode of use of the present invention, and the sub-Asian is used to define the present invention. OFF =: The first electro-optic switch is included in the patterned electro-optic switch assembly of the embodiment of the present invention, with the liquid crystal layer 12 夹 interposed therebetween. __mi30 is disposed on the patterned electrode layer 140: on the substrate 11G, the surface of the electrode layer 14 (the surface layer of the electrode layer 14) is turned into a secret, and it is said that the profit is not Different hydrophilicity and hydrophobicity. The alignment material group 150 is formed on the surface of the electrode layer 14〇, and is interposed with the liquid crystal layer (4), wherein the patterned alignment material is clustered 15 () to make the liquid crystal molecules in the liquid crystal layer 12〇 uniform and uniform. Sexual arrangement. 1363238 2B is a cross-sectional view showing a patterned electro-optical opening and closing device according to another embodiment of the present invention. Referring to FIG. 2B, the patterned electro-optical switch device 100b includes a first substrate n 〇 and a second substrate 13 〇 opposite to each other with a liquid crystal layer 120 interposed therebetween. A patterned electrode layer 14 is disposed on the first substrate 110, wherein the surface properties of the electrode layer 14 are different from those of the first substrate 110, and more specifically, they have different surface polarities, for example, Is a polar surface, or a non-polar surface; or has a different hydrophilic or hydrophobic φ (hydrophobic). The alignment material group is 15〇, selectively formed on the surface of the first certain plate 110, and has an interface with the liquid crystal layer 12, wherein the patterned alignment material is grouped by 15〇, so that the liquid crystal layer 12〇 The liquid crystals within the = are arranged in a uniform uniformity. Figure 2C is a cross-sectional view showing a patterned electro-optical housekeeping device in accordance with still another embodiment of the present invention. Referring to FIG. 2C, the patterned electro-optical device includes a first substrate 11G and a second substrate (10) opposite to each other, and a liquid crystal layer 12G-electrode layer 14 is interposed therebetween. On the substrate 11G, the surface of the comprehensive electrode layer (10) is subjected to a patterned surface treatment step or a patterned surface modification layer is applied to 1. The surface treatment step comprises a plasma, an ion beam, an electron beam or a light surface modification: a quality treatment; wherein the coating surface modification layer comprises a coating material, a molecular structure, and the like, and the surface thereof is divided into surface properties.里:域鲜二.The area 'more specifically, it has no =: fine hydrophilicity and hydrophobicity. The aligning substance cluster 15 〇 is also formed in the first area of the comprehensive electrode layer 14 〇 On the surface, there is an interface between the liquid crystal layer 120 and the liquid crystal layer 120. The patterned alignment material group and the poly 150 make the liquid crystal molecules in the liquid crystal layer 120 have a uniform uniform arrangement. 9 ' It should be noted that the liquid crystal layer 120 may be regarded as a mixture mainly composed of liquid crystal molecules, wherein an optically active substance, an alignment substance, a dichroic dye, a polymer, or other additives having optical properties may be selectively added. In one embodiment of the present invention, the material of the material grouping includes a particle material, a polymer material or an acidic material. More specifically, for example, by polyhedral polyoxyl oligomer (polyhedra) l oligomeric silsesquioxanes, abbreviated as P0SS) or a derivative thereof, mixed in a liquid crystal solution. In one embodiment, a phenethyl-POSS Cage Mixture containing a phenethyl-containing polyhedral oxane oligo. Or octamethyl-POSS or propyl-Hepta-isobutyl substituted P0SS containing octamethyl-containing polyhedral oxy-octogenated oligomers (propyl-Hepta-isobutyl substituted P0SS), for example: A polyhedral oxirane oligomer (aminoethyl-aminopropylisobutyl_P〇SS) containing ethylamine-propyl isobutylamine is used as a ligand. The alignment materials are selected to be aggregated in the form of particles or membranes depending on environmental influences. In one embodiment of the present invention, the POSS may be in the form of particles, and the average particle size range is generally between 0.001 micrometers and 2 micrometers. Further, the content of the 'alignment substance clusters accounts for the total liquid crystal layer: quality 0.01%, 20% 〇 In addition to 'POSS particles, other equivalent aligning substances cluster 'whether transparent or opaque, conductor or non-conductor, organic or inorganic, solid or liquid '✓, to make b Liquid crystal molecule selection The alignment of the present invention can be applied to the embodiment of the 1363238 invention. It should be noted that in order to enable the grouping of the alignment materials to be selectively formed on the surface of the electrode substrate, that is, the material of the substrate itself includes a glass substrate or a polymer substrate. (For example, PET). The electrode itself also includes indium tin oxide (IT〇), indium zinc oxide (ΙΖΟ), metal material or conductive polymer material. Therefore, it is necessary to match the polarity of the surface of the electrode substrate, and select hydrophilicity (hydr〇). A phiiic) or hydrophobic polymeric material. 3A and 3B are schematic views respectively showing the voltage on and off states of the patterned electro-optical switch device in operation according to an embodiment of the present invention. According to an embodiment of the present invention, the liquid crystal layer 260 of the patterned electro-optical switching device 2 includes a mixed solution of negative liquid crystal molecules 265 and an alignment substance. Forming an electrode 240 having a polarity different from the substrate on the surface of the lower electrode substrate 210 (that is, 'the lower substrate structure as in FIGS. 2A and 2') or a partial surface treatment (such as the lower substrate in FIG. 2C), so as to have a vertical alignment substance selectivity The grounds are clustered and formed on the surface of the lower substrate. Further, electrodes 240 having different polarities from the substrate are formed on the surface of the upper electrode substrate 23 or subjected to partial surface treatment so that the vertical alignment substances 250 are selectively clustered and formed on the surface of the upper substrate. According to an embodiment of the invention, the patterned electrodes on the upper and lower substrates may have the same pattern and be in corresponding positions. Further, the polarizing plates 205 and 235" having different polarization directions may be attached to the outer sides of the upper substrate and the lower substrate, respectively. For example, the polarizing axis of the first polarizing plate 205 and the second polarizing plate 235. The polarization axes, which are perpendicular to each other, when they are inactive, when the applied electric field is zero or less than the threshold voltage driving the liquid crystal molecules, in the region corresponding to the region 1363238 where the vertical alignment material is clustered (here In the electrode position, the liquid crystal molecules form a p*' state because they are vertically drained, and the region where the vertical alignment material is not concentrated (here, the electrodeless position) is formed by the horizontal alignment of the liquid crystal molecules, so the liquid crystal The component can form a patterned bright and dark region as shown in FIG. 3A. On the other hand, when the applied voltage is greater than the threshold voltage for driving the liquid crystal molecules, an electric field is formed at the corresponding electrode position to drive the liquid crystal to be horizontally aligned. The region with or without electrodes is in a bright state, as shown in Fig. 3B. &gt; Therefore, the electro-optic switch device 200 can be realized by the electric field without forming a conventional alignment layer. An electro-optical switching element that causes a difference in patterned optical properties. It should be noted that the electro-optic switching device 200 of the present embodiment can be further matched with other types of optical plates, such as a circularly polarized polarizing plate or a phase compensation film (phase compensation). Film) to enhance the optical performance in response to different types of uses. FIGS. 4A and 4B are schematic diagrams showing the voltage on and off states of the patterned electro-optical switch device in operation according to another embodiment of the present invention. In another embodiment, the liquid crystal layer 320 of the patterned electro-optical switch device 300 includes a mixed solution of a guest/host liquid crystal mixed solution and an alignment substance. In this example, the host-guer liquid crystal mixed solution is The negative-type liquid crystal molecules 325 are the main body, and the dichroic dye molecules 324 are the guest. The lower surface of the electrode substrate 310: the surface is formed with electrodes 340 having different polarities (that is, 'the lower substrate structure as shown in FIGS. 2A and 2B') or through the partial surface. Processing (such as the lower substrate of FIG. 2C) such that the alignment materials are selectively clustered and formed on the surface of the lower substrate. Further, on the upper electrode substrate 330 The surface is formed with electrodes 340 having different polarities or subjected to partial surface treatment, so that the alignment material 322 is selectively grouped and formed on the surface of the upper substrate. According to an embodiment of the present invention, &quot;the patterned electrode on the upper and lower substrates , may have the same pattern and be located at the position of the poem. In operation, when the applied electric field is zero or less than the threshold voltage for driving the liquid crystal molecules, corresponding to the region where the vertical alignment substance is clustered (in This is the position of the electrode), because the liquid crystal molecules are arranged vertically, the dye molecules are also vertically aligned. At this time, the dye molecules have a small absorbing rain to form a bright state, and no vertical alignment material is clustered. The Lu is at the electrodeless position. The liquid crystal molecules are arranged horizontally so that the dye molecules are also horizontally arranged. At this time, the dye molecules have a large absorption of the incident light.

成暗態,因此此液晶元件形成圖案化的明暗區域,如第4A 圖所示。另一方面,當外.加電壓大於驅動液晶分子的閥電 壓(threshold v〇ltage)時,於對應電極位置處形成電場,驅 動液晶轉向成水平排列,無論有無電極的區域,因染料分 子也為水平排列.,此時染料分子對入射光線有較大的吸收 成為暗態’如第4B圖所示。因此’電光開關裝置2〇〇無 # 需形成傳統的配向層’即可達到在電場的从:m ^ , 兔琢的作用下,造成圖 _ 案化的光學性質差異的電光開關元件。 應注意的是,本實施例的電光開關裝置3〇〇可進一步 搭配其他料的光學板’例如偏―或相位延遲膜(phase : i^tardatioii film) ’ :以提升光學效能因應不同類型的用途。 本發明各;實施例.中的液晶材料的物性並不限定於正型 液晶(positive dielectric iSOtropy)或負型液晶 dielectric isotropy)。再者,驅動液晶元件的電場亦不限定 13 1363238 於垂直電場驅動型,其他水平電場驅動型,橫向電場驅動 (In-plane Switching,IPS)型、邊緣電場驅動(Fringe Field Switching,FFS)型皆可應用於本發明。再者,液晶操作模 式可為扭轉向列型(Twisted Nematic, TN),垂直配向型 (VA) ’水平配向模式、混合配向向列型(Hybrid Aligned Nematic, HAN)、光學補償彎曲型(Optical Compensated Bend, OCB')或電場控制雙折射型(Eiectrically Controlled Birefringence, ECB)皆可應用於本發明。 本發明雖以實施例揭露如上,然其並非用以限定本發 明的範圍,任何本發明所屬技術領域中具有通常知識者, 在不脫離本發明之精神和範圍内,當可做些許的更動與潤 飾’因此本發明之保護範圍當視後附之中請專利範圍所界 定者為準。 1363238 【圖式簡單說明j _第】圖係顯示傳統垂直配向型液晶顯示器結構的剖面 示意圖,· 關获Li圖係顯示本發明之—實施例的圖案化的電光開 關裝置的剖面示意圖,· 關^二圖係顯示本發明另—實施例的圖案化的電光開 關裝置的剖面示意圖,·It becomes a dark state, so this liquid crystal element forms a patterned bright and dark area as shown in Fig. 4A. On the other hand, when the external voltage is greater than the threshold voltage of the driving liquid crystal molecules, an electric field is formed at the corresponding electrode position, and the liquid crystal is driven to be horizontally arranged, regardless of the presence or absence of the electrode region, because the dye molecules are also Horizontally arranged. At this time, the dye molecules have a large absorption of incident light into a dark state, as shown in Fig. 4B. Therefore, the electro-optical switching device 2 can form a conventional alignment layer to achieve an electro-optical switching element which causes a difference in optical properties of the image from the action of the electric field from: m ^ , the rabbit. It should be noted that the electro-optic switch device 3 of the present embodiment can be further matched with optical plates of other materials such as a phase shift or a phase retardation film (phase: i^tardatioii film): to enhance optical performance and to respond to different types of uses. . The physical properties of the liquid crystal material in the present invention are not limited to positive liquid crystals or negative liquid crystals (isotropy). Furthermore, the electric field for driving the liquid crystal element is not limited to 13 1363238 in the vertical electric field driving type, and other horizontal electric field driving type, in-plane switching (IPS) type, and fringe field switching (FFS) type. It can be applied to the present invention. Furthermore, the liquid crystal operation mode can be Twisted Nematic (TN), Vertical Alignment (VA) 'horizontal alignment mode, Hybrid Aligned Nematic (HAN), Optical Compensated (Optical Compensated) Bend, OCB') or Eiectrically Controlled Birefringence (ECB) can be applied to the present invention. The present invention has been disclosed in the above embodiments, but it is not intended to limit the scope of the present invention. Any one of ordinary skill in the art to which the present invention pertains may be modified. Retouching 'Therefore, the scope of protection of the present invention is subject to the definition of patent scope. 1363238 [Simplified illustration of the drawing j _ _] is a schematic cross-sectional view showing the structure of a conventional vertical alignment type liquid crystal display, and a diagram showing the cross-sectional view of the patterned electro-optic switch device of the embodiment of the present invention. ^ 二图 shows a schematic cross-sectional view of a patterned electro-optical switch device according to another embodiment of the present invention,

苐2C圖係顯示本發明 關裝置的剖面示意圖; 又—實施例的圖案化的電光開 之一實施例的圖案 關態的示意圖;以 第3A和3B圖分別顯示根據本發明 化的電光開關裝置於操作時電壓開態與 及 第4 A和4 B圖分別顯示根據本發 化的電光開關裝置於操作時另-貫施例的圖案 ί主要元件符號說明】 、關態的示意圖。 習知部分(第1圖)2C is a schematic cross-sectional view showing the device of the present invention; and FIG. 3 is a schematic diagram showing a pattern of an electro-optical embodiment of the embodiment; FIG. 3A and FIG. 3B respectively showing an electro-optic switch device according to the present invention. In the operation, the voltage on state and the 4A and 4B diagrams respectively show the pattern of the main component of the electro-optical switch device according to the present invention, and the schematic diagram of the off state. Conventional part (Figure 1)

1〜傳統的垂直配向型液晶顯示器; 5〜上偏光板; ’ 10〜上電極基板; 15〜上配向層; 20〜液晶..層; 22〜液晶分子; 25〜下配向層; 30〜下電極基板; 1363238 35〜下偏光板。 本案部分(第2A〜4B) 100a、100b、100c〜圖案化的電光開關裝置; 110〜第一基板; 120〜液晶層, 130〜第二基板; 140〜圖案化的電極層, 140’〜全面性電極層; 150、150’〜配向物質群聚; 200〜圖案化的電光開關裝置; 210〜下電極基板; 230〜上電極基板; 240〜電極; ' 205、235〜偏光板; 250〜垂直配向物質; 260〜液晶層; 265〜負型液晶分子; 300〜圖案化的電光開關裝置; 310〜下電極基板; - 320〜液晶層; 322〜垂直配向物質; 324〜雙色性染料分子; 325〜正型液晶分子; 3 40〜電極。 161~ conventional vertical alignment type liquid crystal display; 5~ upper polarizing plate; '10~ upper electrode substrate; 15~ upper alignment layer; 20~ liquid crystal.. layer; 22~ liquid crystal molecule; 25~ lower alignment layer; 30~ Electrode substrate; 1363238 35~ lower polarizing plate. Part of this case (2A~4B) 100a, 100b, 100c~ patterned electro-optical switch device; 110~first substrate; 120~liquid crystal layer, 130~second substrate; 140~patterned electrode layer, 140'~ comprehensive Electrode layer; 150, 150'~ alignment material group; 200~ patterned electro-optical switch device; 210~ lower electrode substrate; 230~ upper electrode substrate; 240~ electrode; '205, 235~ polarizer; 250~ vertical Alignment material; 260~liquid crystal layer; 265~ negative liquid crystal molecule; 300~ patterned electro-optical switch device; 310~low electrode substrate; - 320~ liquid crystal layer; 322~ vertical alignment material; 324~ dichroic dye molecule; ~ Positive liquid crystal molecules; 3 40 ~ electrode. 16

Claims (1)

1363238 J 第97107092號 修正日期:101.2.20 修正本 十、申請專利範圍: • 1.一種圖案化的電光開關裝置,包括·‘ 一第一基板與一第二基板對向設置,其間夾置一液晶 •層; 、 一圖案化的電極層設置於該第一基板上,且該第一基 板與該圖案化的電極層的表面具有不同的極性;以及 一圖案化的配向物質群聚選擇性地吸附於該圖案化的 電極層的表面,或吸附於該第一基板的表面; 其中該圖案化的配向物質群聚使該液晶層内的液晶分 子呈均勻一致性的排列。 2. 如申請專利範圍第1項所述之圖案化的電光開關裝 置,更包括一額外的圖案化電極層設置於該第二基板上, 且該第二基板與該額外的圖案化電極層的表面具有不同的 極性;以及 一額外的圖案化配向物質群聚選擇性地吸附於該額外 的圖案化電極層的表面,或吸附於該第二基板的表面; 其中該額外的圖案化配向物質群聚與該液晶層内的液 晶分子呈均勻一致性的排列。 3. 如申請專利範圍第1項所述之圖案化的電光開關裝 ' 置,其中該圖案化的配向物質群聚的材質包括一粒子材 料、一高分子材料或一酸性材料。 4. 如申請專利範圍第3項所述之圖案化的電光開關裝 置,其中該粒子材料包括多面體矽氧烷寡聚物(polyhedral oligomeric silsesquioxanes,簡稱 P0SS)或其衍生物。 17 • 第97107092號 故 . 修正日期:101.2.20 修正本 利把圍第】項所述之圖案化的電光開關裝 置’ ^中該圖案化的電極層的材質包括氧化銦錫(IT〇)、氧 •化麵鋅(ΙΖΟ)、金屬材料或導電高分子材料。 6’如申°月專㈣圍第1項所述之圖案化的電光開關裝 置,其中該液晶層的材質包括-液晶分子及-配向物質。 7. —種圖案化的電光開關裝置,包括: 一第一基板與—第二基板對向設置,其間央置-液晶 層; 一全面性的電極層設置於該第一基板上,其表面經過 表面改質處理後而具有不同極性的一第一區域與一第二區 域;以及 •、 一圖案化的配向物質群聚選擇性地吸附於該第一區 域,或吸附於該第二區域; 其中該圖案化的配向物質群聚使該液晶層内的液晶分 子呈均勻一致性的排列。 8. 如申请專利範圍第7項所述之圖案化的電光開關裝 置’更包括-額外的電極層設置於該第二基板上,且該額 外的電極層的表面經過表面改質處理後而具有不同極性的 /第二區域與一第四區域;以及 、額外的圖案化配向物質群聚選擇性地吸附於該第三 區域’或吸附於該第四區域; 其中該額外的圖案化的配向物質群聚使該液晶層内的 液曰日刀子壬均勻一致性的排列。 9. 如申請專利範圍第7項所述之圖案化的電光開關裝 18 1363238 • .第97107092號 修正日期:101.2.20 修正本 置,其中該圖案化的配向物質群聚的材質包括一粒子材 • 料、一高分子材料或一酸性材料。 - 10.如申請專利範圍第9項所述之圖案化的電光開關裝 ' 置,其中該粒子材料包括多面體矽氧烷寡聚物(polyhedral oligomeric silsesquioxanes,簡稱 P0SS)或其衍生物。 11. 如申請專利範圍第7項所述之圖案化的電光開關裝 置,其中該全面性的電極層的材質包括氧化銦錫(ITO)、氧 化銦鋅(IZO)、金屬材料或導電高分子。 12. 如申請專利範圍第7項所述之圖案化的電光開關裝 置,其中該液晶層的材質包括一液晶分子及一配向物質。 ; 13.如申請專利範圍第7項所述之圖案化的電光開關裝 置,其中該表面改質處理包括塗佈一圖案化的表面改質層 於該全面性電極層上。 14.如申請專利範圍第13項所述之圖案化的電光開關 裝置,其中該圖案化的表面改質層的材質包括氧化物、金 屬、或高分子材料。1363238 J Revision No. 97107092 Revision Date: 101.2.20 Amendment to this Scope of Application: 1. A patterned electro-optic switch device comprising: a first substrate and a second substrate disposed opposite each other a liquid crystal layer; a patterned electrode layer is disposed on the first substrate, and the first substrate has a different polarity from a surface of the patterned electrode layer; and a patterned alignment material is selectively clustered Adsorbing on the surface of the patterned electrode layer or adsorbing on the surface of the first substrate; wherein the patterned alignment of the alignment materials causes the liquid crystal molecules in the liquid crystal layer to be uniformly and uniformly arranged. 2. The patterned electro-optic switch device of claim 1, further comprising an additional patterned electrode layer disposed on the second substrate, and the second substrate and the additional patterned electrode layer The surface has a different polarity; and an additional patterned alignment material is selectively adsorbed to the surface of the additional patterned electrode layer or adsorbed to the surface of the second substrate; wherein the additional patterned alignment material group The alignment is uniform with the liquid crystal molecules in the liquid crystal layer. 3. The patterned electro-optical switch device of claim 1, wherein the patterned material of the alignment material comprises a particulate material, a polymer material or an acidic material. 4. The patterned electro-optical switch device of claim 3, wherein the particulate material comprises polyhedral oligomeric silsesquioxanes (POSS) or derivatives thereof. 17 • No. 97107092. Amendment date: 101.2.20 Correction: The material of the patterned electrode layer in the patterned electro-optic switch device described in item 】 includes indium tin oxide (IT〇), Oxygen and zinc (ΙΖΟ), metal materials or conductive polymer materials. The patterned electro-optical switch device of the first aspect of the invention, wherein the material of the liquid crystal layer comprises - liquid crystal molecules and - alignment materials. 7. A patterned electro-optical switch device, comprising: a first substrate opposite to a second substrate, wherein a central liquid crystal layer is disposed; a comprehensive electrode layer is disposed on the first substrate, and a surface thereof passes through a first region and a second region having different polarities after surface modification; and a patterned alignment of the alignment material selectively adsorbed to the first region or adsorbed to the second region; The patterned alignment of the alignment materials causes a uniform uniform alignment of the liquid crystal molecules in the liquid crystal layer. 8. The patterned electro-optic switch device according to claim 7 further comprising: an additional electrode layer disposed on the second substrate, and the surface of the additional electrode layer is subjected to surface modification treatment Different polarity/second region and a fourth region; and additional patterned alignment material group selectively adsorbs to or adsorbs to the third region; wherein the additional patterned alignment material The clustering causes a uniform uniform arrangement of the liquid knives in the liquid crystal layer. 9. Patterned electro-optical switch device as described in claim 7 of the patent application. 18 1363238 • Revision No. 97107092, dated 101.2.20, the correction of the device, wherein the patterned material of the alignment material comprises a particle material • Material, a polymer material or an acidic material. 10. The patterned electro-optical switch device of claim 9, wherein the particulate material comprises polyhedral oligomeric silsesquioxanes (POSS) or derivatives thereof. 11. The patterned electro-optical switch device of claim 7, wherein the material of the comprehensive electrode layer comprises indium tin oxide (ITO), indium zinc oxide (IZO), a metal material or a conductive polymer. 12. The patterned electro-optic switch device of claim 7, wherein the material of the liquid crystal layer comprises a liquid crystal molecule and an alignment material. 13. The patterned electro-optical switch device of claim 7, wherein the surface modification process comprises applying a patterned surface modifying layer to the overall electrode layer. 14. The patterned electro-optical switch device of claim 13, wherein the patterned surface modifying layer comprises an oxide, a metal, or a polymeric material.
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