TWI425463B - Method for manufacturing flexible display panel - Google Patents
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本發明係關於一種可撓式顯示面板之製造方法，尤指一種製程簡化、產率提升之可撓式顯示面板之製造方法。The present invention relates to a method for manufacturing a flexible display panel, and more particularly to a method for manufacturing a flexible display panel with simplified process and improved yield.
目前面板所使用之間隔物主要有以下三種：高分子系的壓克力樹脂微粒子、玻璃系的棒狀粒子及矽氧系的球狀粒子等，其中高分子系的壓克力樹脂微粒子具有材質柔軟的優點，但缺點在於不易控制粒徑的均一性，容易造成面板間隔距離改變；玻璃系的棒狀粒子具有價格較低的優點，且成品之粒徑控制佳；矽氧系的球狀粒子之優點在於：顆粒形狀較為均勻、粒子比較小(1~13 mm)、散布量較少，但缺點在於材料較硬、容易造成配向膜之損害。上述三種間隔物中，以高分子系的微粒子與玻璃系的棒狀粒子最為普遍。At present, there are mainly three types of spacers used for the panel: acrylic acrylic resin particles, glass-based rod-shaped particles, and xenon-based spherical particles, among which acrylic acrylic resin particles have a material. The advantage of softness, but the disadvantage is that it is difficult to control the uniformity of the particle size, and it is easy to cause the panel spacing distance to change; the rod-like particles of the glass system have the advantage of lower price, and the particle size control of the finished product is good; the cerium-like spherical particles The advantages are that the particle shape is relatively uniform, the particles are relatively small (1~13 mm), and the amount of dispersion is small, but the disadvantage is that the material is hard and easily causes damage to the alignment film. Among the above three kinds of spacers, polymer-based fine particles and glass-based rod-shaped particles are most common.
現今業界一般利用散佈間隔物(spacer spraying)的技術，使上述間隔物均勻散佈於面板中兩相對基板之間，以支持基板之間的間隙，並在面板中形成均勻且適當的間隔距離(cell gap)。不過，散佈間隔物的技術，現今仍需要大量人力與耗費許多時間，不但其中製造程序繁瑣，而且與間隔物搭配使用之溶劑，對於在場之作業人員相當具有危險性，因此而提高許多無需的成本。況且，此種方式難以適用於軟性顯示器，其原因在於軟性顯示器進行外力測試時(舉例如撓曲測試)，容易造成間隔物位移，使撓曲的中間部分發生殘影現象。In the industry today, spacer spraying is generally used to evenly distribute the spacers between two opposite substrates in the panel to support the gap between the substrates and form a uniform and appropriate separation distance in the panel. Gap). However, the technique of distributing spacers still requires a lot of manpower and a lot of time. Not only is the manufacturing process cumbersome, but the solvent used in combination with the spacers is quite dangerous for the workers present, so many unnecessary ones are needed. cost. Moreover, such a method is difficult to apply to a flexible display because the soft display is subjected to an external force test (for example, a flex test), which is liable to cause displacement of the spacer and cause image sticking in the middle portion of the deflection.
因此，對於填充於面板中兩基板之間的間隔物，若能夠改善其製程、增強其抵抗外力所造的形變、維持原有面板間隙值，將更能保證面板原有之光學表現品質及耐用性，同時提升面板之抗撓曲能力。Therefore, if the spacers filled between the two substrates in the panel can improve the manufacturing process, enhance the deformation caused by the external force, and maintain the original panel gap value, the original optical performance quality and durability of the panel can be ensured. Sex, while enhancing the panel's resistance to flexing.
本發明之主要目的係在提供一種可撓式顯示面板之製造方法，俾能縮短製程時間，降低製造成本，提升生產速度，且所製得之可撓式顯示面板具有良好的可撓性，且能保有優秀的光學品質及耐用性。The main object of the present invention is to provide a method for manufacturing a flexible display panel, which can shorten the processing time, reduce the manufacturing cost, increase the production speed, and have a good flexibility in the obtained flexible display panel. Can maintain excellent optical quality and durability.
為達成上述目的，本發明提供一種可撓式顯示面板之製造方法，包括以下步驟：提供一具有一第一導電膜之第一可撓式基板、一具有一第二導電膜之第二可撓式基板及一圖案化之模具；於具有該第二導電膜之該第二可撓式基板表面，塗佈一樹脂組成物；利用一模具，使該樹脂組成物表面突起而形成複數個突起體，光固化或熱固化該樹脂組成物，以形成一體成型之配向膜，因此該配向膜表面具有眾多突起體；組合該第一可撓式基板及該第二可撓式基板，使該配向膜夾置於該第一可撓式基板之該第一導電膜及該第二可撓式基板之該第二導電膜之間；以及注入一流體顯示介質於該第一可撓式基板及該第二可撓式基板之間。To achieve the above object, the present invention provides a method for manufacturing a flexible display panel, comprising the steps of: providing a first flexible substrate having a first conductive film and a second flexible having a second conductive film a substrate and a patterned mold; coating a resin composition on the surface of the second flexible substrate having the second conductive film; forming a plurality of protrusions by protruding a surface of the resin composition by using a mold Curing or thermally curing the resin composition to form an integrally formed alignment film, so that the surface of the alignment film has a plurality of protrusions; combining the first flexible substrate and the second flexible substrate to make the alignment film Sandwiching between the first conductive film of the first flexible substrate and the second conductive film of the second flexible substrate; and injecting a fluid display medium on the first flexible substrate and the first Between two flexible substrates.
在本發明其中一實施態樣中，該模具表面塗佈或噴灑有一離型劑，因此模具上不會沾黏樹脂組成物，而可順利使樹脂組成物表面形成突起體。In one embodiment of the present invention, the surface of the mold is coated or sprayed with a release agent, so that the resin composition is not adhered to the mold, and the surface of the resin composition can be smoothly formed into a protrusion.
在本發明另一實施態樣中，先使樹脂組成物進行交聯，使其中樹脂部份交聯後，再塗佈於第一導電膜表面，因此樹脂組成物同樣不會沾黏在模具上。In another embodiment of the present invention, the resin composition is first crosslinked such that the resin portion is crosslinked and then applied to the surface of the first conductive film, so that the resin composition is not adhered to the mold. .
在本發明再一實施態樣中，該樹脂組成物包含一疏水性樹脂，因此該疏水性樹脂部份會聚集於該樹脂組成物表面，而形成一薄薄的疏水膜，所以樹脂組成物同樣不會沾黏在模具上。In still another embodiment of the present invention, the resin composition comprises a hydrophobic resin, so that the hydrophobic resin portion collects on the surface of the resin composition to form a thin hydrophobic film, so the resin composition is the same Will not stick to the mold.
在本發明再另一實施態樣中，於利用該模具之前，更包含一步驟：於該樹脂組成物表面形成一疏水性之樹脂膜，且當該樹脂組成物固化時，該疏水性之樹脂膜亦發生固化，因此仍可形成一體成型之配向膜，且配向膜表面有突起體。In still another embodiment of the present invention, before using the mold, the method further comprises the steps of: forming a hydrophobic resin film on the surface of the resin composition, and when the resin composition is cured, the hydrophobic resin The film also solidifies, so that an integrally formed alignment film can still be formed, and the surface of the alignment film has protrusions.
在本發明復另一實施態樣中，於塗佈該樹脂組成物之後但於利用該模具之前，更包括一步驟：預固化該樹脂組成物，因此樹脂組成物於後續成型過程中，不會沾黏於模具上。In another embodiment of the present invention, after the coating of the resin composition but before using the mold, a step further comprises: pre-curing the resin composition, so that the resin composition does not undergo subsequent molding. Stick to the mold.
同樣，為達成本發明上述目的，本發明另提供一種可撓式顯示面板之製造方法，包括以下步驟：提供一具有一第一導電膜之第一可撓式基板及一具有一第二導電膜之第二可撓式基板；塗佈一樹脂組成物於一模具，使該樹脂組成物於與該模具接觸之表面形成複數個突起體，預固化該樹脂組成物，並將該預固化之樹脂組成物轉貼至具有該第二導電膜之該第二可撓式基板表面；光固化或熱固化該樹脂組成物，以形成一體成型之配向膜；組合該第一可撓式基板及該第二可撓式基板，使該配向膜夾置於該第一可撓式基板之該第一導電膜及該第二可撓式基板之該第二導電膜之間；以及注入一流體顯示介質於該第一可撓式基板及該第二可撓式基板之間。Similarly, in order to achieve the above object of the present invention, the present invention further provides a method for manufacturing a flexible display panel, comprising the steps of: providing a first flexible substrate having a first conductive film and a second conductive film; a second flexible substrate; coating a resin composition in a mold, forming a plurality of protrusions on the surface in contact with the mold, pre-curing the resin composition, and pre-curing the resin The composition is transferred to the surface of the second flexible substrate having the second conductive film; photocuring or thermally curing the resin composition to form an integrally formed alignment film; combining the first flexible substrate and the second a flexible substrate, wherein the alignment film is sandwiched between the first conductive film of the first flexible substrate and the second conductive film of the second flexible substrate; and a fluid display medium is injected therein Between the first flexible substrate and the second flexible substrate.
上述製造方法中，於形成該配向膜之後，可選擇性更包括一步驟：離子化氣體或電子束表面處理該第一可撓式基板及該第二可撓式基板(如在基板邊緣設定塗覆框膠的位置進行表面處理)，以清潔第一可撓式基板及第二可撓式基板表面，使後續第一可撓式基板及第二可撓式基板組合之時，可順利貼合而不會剝離。可使用的離子化氣體或電子束表面處理，舉例如氬氣離子化氣體或電子束表面處理。In the above manufacturing method, after the forming the alignment film, the method further includes: a step of: ionizing the gas or electron beam surface treating the first flexible substrate and the second flexible substrate (eg, setting the coating on the edge of the substrate) The surface of the over-clad glue is surface-treated to clean the surface of the first flexible substrate and the second flexible substrate, so that the subsequent first flexible substrate and the second flexible substrate can be smoothly combined It will not be stripped. An ionized gas or electron beam surface treatment can be used, such as argon ionized gas or electron beam surface treatment.
上述製造方法中，漿狀樹脂組成物可包含光固化型樹脂、熱固化型樹脂、溶劑型樹脂、溶膠凝膠型樹脂或其組合。另外，該樹脂組成物可更包含光起始劑、熱起始劑或其組合。In the above production method, the slurry resin composition may include a photocurable resin, a thermosetting resin, a solvent resin, a sol gel resin, or a combination thereof. In addition, the resin composition may further comprise a photoinitiator, a thermal initiator, or a combination thereof.
上述製造方法中，該固化及該預固化可為低溫式固化、常溫式固化、加熱式固化、光聚合式固化或其組合。倘若使用光聚合式固化方式，可使用之光源舉例如紫外光。In the above manufacturing method, the curing and the pre-curing may be low-temperature curing, normal temperature curing, heating curing, photopolymerization curing, or a combination thereof. If a photopolymerization curing method is used, the light source that can be used is, for example, ultraviolet light.
另外，該些突起體之高度不限，可視需求設計，較佳可介於1 nm至100 μm之範圍，例如：0.005、0.05、0.5、1、5、10、25、50、75、90 μm等。此外，該些突起體之間隙距離不限，可視需求設計，較佳可介於10 μm至2000 μm之範圍，例如：50、100、500、1000、1500 μm等。此外，可撓式基板可使用的材料不限，舉例如高分子材料之基板、金屬材料(如不鏽鋼材料)之基板、超薄玻璃基板等。In addition, the height of the protrusions is not limited, and may be designed according to requirements, preferably ranging from 1 nm to 100 μm, for example: 0.005, 0.05, 0.5, 1, 5, 10, 25, 50, 75, 90 μm. Wait. In addition, the gap distance of the protrusions is not limited, and may be designed according to requirements, preferably ranging from 10 μm to 2000 μm, for example, 50, 100, 500, 1000, 1500 μm, and the like. Further, the material that can be used for the flexible substrate is not limited, and examples thereof include a substrate of a polymer material, a substrate of a metal material (for example, a stainless steel material), an ultra-thin glass substrate, and the like.
由上述可知，在本發明製造方法中，配向膜表面突起而具有多個突起體，這些突起體則具有間隔物的功能，且其突起體的構形可任意設計與佈局(舉例如梯形柱狀、圓形柱狀、三角形柱狀、錐狀、球狀、半球狀等)，且倘若這些突起體的高度一致則較佳，而導電膜的圖案同樣可任意設計與配(舉例如樹枝型、馬蹄型等)。本發明的製造方法可以縮短製程時間，降低製造成本，簡化製程，並自由調控配向膜之膜厚大小，而且所製得之顯示面板，亦具有優異的撓曲性。As can be seen from the above, in the manufacturing method of the present invention, the surface of the alignment film has a plurality of protrusions, and the protrusions have the function of a spacer, and the configuration of the protrusions can be arbitrarily designed and arranged (for example, a trapezoidal columnar shape) , a circular column, a triangular column, a cone, a sphere, a hemisphere, etc., and if the heights of the protrusions are uniform, the pattern of the conductive film can also be arbitrarily designed and matched (for example, a dendrite, Horseshoe type, etc.). The manufacturing method of the invention can shorten the processing time, reduce the manufacturing cost, simplify the process, and freely control the film thickness of the alignment film, and the display panel obtained also has excellent flexibility.
在本發明實施例中，配向膜表面之突起體可利用壓印、滾壓、模具轉印等方式形成，其中壓印可為奈米壓印、網版印刷、凹凸模具壓印等，而模具的製造方式係可為雷射雕刻、化學蝕刻、光微影、機械鑄造等。由於使用上述模具，因此可連續進行製程，減少製程時間使生產率提升，同時簡化製程的複雜性並降低成本。In the embodiment of the present invention, the protrusion of the surface of the alignment film can be formed by using embossing, rolling, mold transfer, etc., wherein the embossing can be nano embossing, screen printing, embossing, etc. The manufacturing method may be laser engraving, chemical etching, photolithography, mechanical casting, or the like. Thanks to the use of the above-mentioned molds, the process can be continuously performed, the process time is reduced, the productivity is improved, and the complexity of the process is reduced and the cost is reduced.
此外，針對樹脂組成物進行固化時，可使用游離輻射或非游離輻射，其中非游離輻射舉例可使用390 nm至780 nm之可見光或180 nm至380 nm之紫外光。Further, when curing the resin composition, free radiation or non-free radiation may be used, and for the non-free radiation, visible light of 390 nm to 780 nm or ultraviolet light of 180 nm to 380 nm may be used.
在可撓式顯示面板所使用之流體顯示介質，可為液晶材料或電泳材料，其中液晶材料舉例如：TN型液晶、MVA型液晶、PVA型液晶、IPS型液晶之向列型液晶，以及膽固醇型液晶、層列型液晶、碟狀液晶、主-賓效應型液晶、旋光性液晶、藍相液晶、高分子複合系液晶等液晶材料。The fluid display medium used in the flexible display panel may be a liquid crystal material or an electrophoretic material, wherein the liquid crystal material is, for example, TN type liquid crystal, MVA type liquid crystal, PVA type liquid crystal, IPS type liquid crystal nematic liquid crystal, and cholesterol. A liquid crystal material such as a liquid crystal, a smectic liquid crystal, a discotic liquid crystal, a main-passive effect liquid crystal, an optically active liquid crystal, a blue phase liquid crystal, or a polymer composite liquid crystal.
在組裝第一可撓式基板及第二可撓式基板形成顯示面板時，其中的組裝製程可包含框膠硬化及基板壓合。此外，可使用高分子基板作為第一可撓式基板及第二可撓式基板。When the first flexible substrate and the second flexible substrate are assembled to form a display panel, the assembly process therein may include sealant hardening and substrate press bonding. Further, a polymer substrate can be used as the first flexible substrate and the second flexible substrate.
本發明可撓式顯示面板的製造過程中，定向處理可為溶液塗佈、電漿聚合、濺鍍之直接定向處理；液晶溶解注入之間接定向處理；或摩擦法、傾斜蒸著法(如單層蒸著、雙層蒸著、旋轉蒸著)、離子束法、電漿法、浸漬法之變形定向處理。此外，上述定向處理所得的配向可為垂直配向、傾斜垂直配向、平行配向、傾斜平行配向。In the manufacturing process of the flexible display panel of the present invention, the directional treatment may be direct directional treatment of solution coating, plasma polymerization, sputtering; directional treatment of liquid crystal dissolution injection; or rubbing method, inclined steaming method (such as single Deformation and orientation treatment of layer evaporation, double layer evaporation, rotary evaporation), ion beam method, plasma method, and dipping method. In addition, the orientation obtained by the above orientation treatment may be vertical alignment, oblique vertical alignment, parallel alignment, and oblique parallel alignment.
以下係藉由特定的具體實施例說明本發明之實施方式，熟習此技藝之人士可由本說明書所揭示之內容輕易地了解本發明之其他優點與功效。本發明亦可藉由其他不同的具體實施例加以施行或應用，本說明書中的各項細節亦可基於不同觀點與應用，在不悖離本發明之精神下進行各種修飾與變更。The embodiments of the present invention are described by way of specific examples, and those skilled in the art can readily appreciate the other advantages and advantages of the present invention. The present invention may be embodied or applied in various other specific embodiments, and various modifications and changes can be made without departing from the spirit and scope of the invention.
本發明之實施例中該等圖式均為簡化之示意圖。惟該等圖示僅顯示與本發明有關之元件，其所顯示之元件非為實際實施時之態樣，其實際實施時之元件數目、形狀等比例為一選擇性之設計，且其元件佈局型態可能更複雜。The drawings in the embodiments of the present invention are simplified schematic diagrams. However, the drawings show only the components related to the present invention, and the components shown therein are not in actual implementation, and the number of components, the shape, and the like in actual implementation are a selective design, and the component layout thereof. The pattern may be more complicated.
實施例一Embodiment 1
首先，參考圖1A至1H，其係本實施例可撓式顯示面板之製作流程示意圖。First, referring to FIG. 1A to FIG. 1H, it is a schematic diagram of a manufacturing process of the flexible display panel of the embodiment.
如圖1A所示，提供一第一可撓式基板21及一第二可撓式基板22。在本實施例中，可使用高分子材料之基板作為該第一可撓式基板21及該第二可撓式基板22，但不以此為限。As shown in FIG. 1A, a first flexible substrate 21 and a second flexible substrate 22 are provided. In the present embodiment, the substrate of the polymer material can be used as the first flexible substrate 21 and the second flexible substrate 22, but not limited thereto.
接著，如圖1B所示，分別於該第一可撓式基板21及該第二可撓式基板22表面，形成一圖案化之第一導電膜23及一圖案化之第二導電膜24。在本實施例中，可使用透明金屬系氧化物導電膜(如ITO)或異方性導電膜(如包含樹脂及導電粒子)作為該第一導電膜23及該第二導電膜24，但不以此為限。Next, as shown in FIG. 1B, a patterned first conductive film 23 and a patterned second conductive film 24 are formed on the surfaces of the first flexible substrate 21 and the second flexible substrate 22, respectively. In the present embodiment, a transparent metal-based oxide conductive film (such as ITO) or an anisotropic conductive film (such as a resin and conductive particles) may be used as the first conductive film 23 and the second conductive film 24, but not This is limited to this.
另一方面，如圖1C所示，將一漿狀樹脂組成物25’旋轉塗佈於一模具30表面，使該漿狀樹脂組成物25’填入模具30的凹孔中，因此該漿狀樹脂組成物25’與模具30接觸之表面便形成多個突起體251。而後，同時參考圖1C及1D，預固化該漿狀樹脂組成物25’(圖1C)，而形成預固化之樹脂組成物25"(圖1D)。在本實施例中，該漿狀樹脂組成物25’可為含紫外光硬化型聚氨酯(UV-curing polyurethane)及光起始劑之組成物，且此組成物除含上述兩種成分外，較佳亦可選擇性包含奈米等級之玻璃粉(glass powder)、氧化矽(silica)、碳纖維(carbon fiber)或其組合，但不以此為限。此組成物中，各成分之間之比例可視需要調整，舉例而言，含紫外光硬化型聚氨酯與其他成分之比例可為5~100：1，具體如40：1(2.5%)。此外，旋轉塗佈的條件可視樹脂組成物而定，舉例如下：5至30秒之塗佈時間，200 rpm至600 rpm之轉速，但使用其他條件或其他習知塗佈方法亦可，並不以此為限。再者，預固化該漿狀樹脂組成物25’的方法，可根據該漿狀樹脂組成物25’所含之成份而定，例如本實施使用紫外光硬化型聚氨酯作為該漿狀樹脂組成物25’之主材料，則使用紫外光照射進行預固化，預固化的條件可根據樹脂組成物25進行調整，沒有特別限制。本實施例所使用的模具，可利用雷射雕刻，但不以此為限。On the other hand, as shown in Fig. 1C, a slurry-like resin composition 25' is spin-coated on the surface of a mold 30, and the slurry-like resin composition 25' is filled in a recessed hole of the mold 30, so that the slurry is formed. A plurality of protrusions 251 are formed on the surface of the resin composition 25' which is in contact with the mold 30. Then, referring to Figs. 1C and 1D, the paste resin composition 25' (Fig. 1C) is pre-cured to form a pre-cured resin composition 25" (Fig. 1D). In the present embodiment, the paste resin composition The material 25' may be a composition comprising a UV-curing polyurethane and a photoinitiator, and the composition preferably comprises a nano-grade glass in addition to the above two components. Glass powder, silica, carbon fiber, or a combination thereof, but not limited thereto. In this composition, the ratio between the components may be adjusted as needed, for example, containing ultraviolet light. The ratio of the hardened polyurethane to other components may be from 5 to 100:1, specifically as 40:1 (2.5%). In addition, the conditions of the spin coating may depend on the resin composition, for example as follows: 5 to 30 seconds of coating Time, 200 rpm to 600 rpm, but other conditions or other conventional coating methods may be used, and not limited thereto. Further, the method of pre-curing the slurry resin composition 25' may be Depending on the composition of the paste resin composition 25', for example, the present embodiment uses ultraviolet light hard As the main material of the paste resin composition 25', the modified polyurethane is pre-cured by irradiation with ultraviolet light, and the pre-curing conditions can be adjusted according to the resin composition 25, and are not particularly limited. The mold used in the present embodiment, Laser engraving can be used, but not limited to this.
接者，如圖1E所示，將預固化之樹脂組成物25"，從模具30上轉印至具有第二導電膜24之第二可撓式基板22表面，移除模具30。Next, as shown in FIG. 1E, the pre-cured resin composition 25" is transferred from the mold 30 to the surface of the second flexible substrate 22 having the second conductive film 24, and the mold 30 is removed.
再如圖1F所示，對該預固化之樹脂組成物25"，進行固化，使其完全固化後，形成一體成型之配向膜25。在本實施例中，固化步驟可與預固化步驟相同，但也可不相同，舉例而言，倘若樹脂組成物中，同時含有光起始劑及熱起始劑，於預固化步驟時則利用紫外光進行固化，而於固化步驟時則可利用熱進行固化。再者，固化步驟的條件則依照經過預固化之樹脂組成物25"的厚度、光罩距離及紫外光強度而有所變化，舉例而言，光罩距離可為3公分，紫外光強度可為400 W，但不以此為限。Further, as shown in FIG. 1F, the pre-cured resin composition 25" is cured to be completely cured to form an integrally formed alignment film 25. In this embodiment, the curing step may be the same as the pre-curing step. However, it may be different. For example, if the resin composition contains both a photoinitiator and a thermal initiator, it is cured by ultraviolet light in the pre-curing step, and may be cured by heat in the curing step. Furthermore, the conditions of the curing step vary depending on the thickness of the pre-cured resin composition of 25", the distance between the mask, and the intensity of the ultraviolet light. For example, the distance of the mask can be 3 cm, and the intensity of the ultraviolet light can be It is 400 W, but not limited to this.
然後，如圖1G所示，組合該第一可撓式基板21及該第二可撓式基板22，使該配向膜25夾置於該第一可撓式基板21之該第一導電膜23及該第二可撓式基板22之該第二導電膜24之間。此外，在組合該第一可撓式基板21及該第二可撓式基板22之前，對於該第一可撓式基板21及該第二可撓式基板22，可選擇性進行離子化氣體或電子束表面處理，例如氬氣離子化氣體或電子束表面處理(40W，250mtorr，3 min，但不以此為限)，以清潔兩基板表面，而後，定向處理該第一可撓式基板21之第一導電膜23及該第二可撓式基板22之配向膜25。上述組合方式，可利用紫外光聚合之框膠，塗佈於該第一可撓式基板21上之該第一導電膜23及該第二可撓式基板22上之該配向膜25周圍，而後對準貼合，再以紫外光(400W，80sec)固化框膠。Then, as shown in FIG. 1G, the first flexible substrate 21 and the second flexible substrate 22 are combined, and the alignment film 25 is sandwiched between the first conductive film 23 of the first flexible substrate 21. And between the second conductive film 24 of the second flexible substrate 22. In addition, before the first flexible substrate 21 and the second flexible substrate 22 are combined, the first flexible substrate 21 and the second flexible substrate 22 may be selectively ionized or Electron beam surface treatment, such as argon ionized gas or electron beam surface treatment (40 W, 250 mtorr, 3 min, but not limited thereto) to clean the surfaces of the two substrates, and then the first flexible substrate 21 is oriented. The first conductive film 23 and the alignment film 25 of the second flexible substrate 22. The combination method can be applied to the first conductive film 23 on the first flexible substrate 21 and the alignment film 25 on the second flexible substrate 22 by using a UV-polymerized frame glue, and then Align the fit and cure the sealant with UV light (400W, 80sec).
最後，如圖1H所示，利用真空液晶注入機，注入一流體顯示介質26於該第一可撓式基板21及該第二可撓式基板22之間，即完成可撓式顯示面板。於本實施例中，使用摻有3%染料之多區域垂直配向型(multi-domain vertical alignment，MVA)或扭曲向列型(twisted nematic，TN)液晶，但其他種類之液晶亦可使用，並不以此為限。Finally, as shown in FIG. 1H, a flexible liquid crystal injecting device is used to inject a fluid display medium 26 between the first flexible substrate 21 and the second flexible substrate 22 to complete the flexible display panel. In this embodiment, a multi-domain vertical alignment (MVA) or a twisted nematic (TN) liquid crystal doped with 3% dye is used, but other kinds of liquid crystals can also be used, and Not limited to this.
實施例二Embodiment 2
首先，參考圖2A至2G，其係本實施例可撓式顯示面板之製作流程示意圖。First, referring to FIG. 2A to FIG. 2G, it is a schematic diagram of a manufacturing process of the flexible display panel of the embodiment.
類似實施例一，提供一第一可撓式基板21及一第二可撓式基板22，並於其表面分別形成一圖案化之第一導電膜23及一圖案化之第二導電膜24，如圖2A及2B所示。In a first embodiment, a first flexible substrate 21 and a second flexible substrate 22 are provided, and a patterned first conductive film 23 and a patterned second conductive film 24 are respectively formed on the surface thereof. 2A and 2B.
然後，如圖2C所示，塗佈一漿狀樹脂組成物25’於具有該第二導電膜24之第二可撓式基板22。其中，該樹脂組成物所含成分類似於實施例一，但更包含一疏水性樹脂，例如含氟或含矽之樹脂，故此疏水性樹脂部份會自然聚集在樹脂組成物的表面而形成一薄薄的疏水膜。Then, as shown in Fig. 2C, a paste resin composition 25' is applied to the second flexible substrate 22 having the second conductive film 24. Wherein, the resin composition contains a component similar to that of the first embodiment, but further comprises a hydrophobic resin such as a fluorine-containing or cerium-containing resin, so that the hydrophobic resin portion naturally accumulates on the surface of the resin composition to form a A thin hydrophobic film.
接著，如圖2D所示，使用一模具30，讓漿狀樹脂組成物25’表面形成突起體251。此模具可利用雷射雕刻、化學蝕刻、光微影或機械鑄造製得，並可透過壓印、滾壓(roll-to-roll)等方式，於漿狀樹脂組成物25’表面形成突起體251。由於本實施例中漿狀樹脂組成物25’中含有疏水性樹脂，故此步驟過程中，漿狀樹脂組成物25’不會沾黏於模具30上，且突起體251可順利形成。Next, as shown in Fig. 2D, a mold 30 is used to form a protrusion 251 on the surface of the paste resin composition 25'. The mold can be produced by laser engraving, chemical etching, photolithography or mechanical casting, and can form protrusions on the surface of the slurry resin composition 25' by means of embossing, roll-to-rolling or the like. 251. Since the slurry resin composition 25' contains a hydrophobic resin in the present embodiment, the slurry resin composition 25' does not adhere to the mold 30 during the step, and the protrusions 251 can be smoothly formed.
再如圖2E所示，對該漿狀樹脂組成物25’進行固化，而於具有第二導電膜24之第二可撓式基板22表面形成一體成型之配向膜25。Further, as shown in Fig. 2E, the paste resin composition 25' is cured, and an integrally formed alignment film 25 is formed on the surface of the second flexible substrate 22 having the second conductive film 24.
接著，如圖2F所示，組合該第一可撓式基板21及該第二可撓式基板22，使該配向膜25夾置於該第一可撓式基板21之該第一導電膜23及該第二可撓式基板22之該第二導電膜24之間。最後，如圖2G所示，利用真空液晶注入機，注入一流體顯示介質26於該第一可撓式基板21及該第二可撓式基板22之間，即完成可撓式顯示面板。Then, as shown in FIG. 2F, the first flexible substrate 21 and the second flexible substrate 22 are combined, and the alignment film 25 is sandwiched between the first conductive film 23 of the first flexible substrate 21. And between the second conductive film 24 of the second flexible substrate 22. Finally, as shown in FIG. 2G, a liquid crystal display medium 26 is injected between the first flexible substrate 21 and the second flexible substrate 22 by using a vacuum liquid crystal injector to complete the flexible display panel.
實施例三Embodiment 3
參考圖3A至3H，其係本實施例可撓式顯示面板之製作流程示意圖。3A to 3H are schematic diagrams showing the manufacturing process of the flexible display panel of the present embodiment.
如圖3A及3B所示，提供一第一可撓式基板21及一第二可撓式基板22，並於其表面分別形成一圖案化之第一導電膜23及一圖案化之第二導電膜24。As shown in FIG. 3A and FIG. 3B, a first flexible substrate 21 and a second flexible substrate 22 are provided, and a patterned first conductive film 23 and a patterned second conductive layer are respectively formed on the surface thereof. Membrane 24.
然後，如圖3C所示，塗佈一漿狀樹脂組成物25’於具有該第二導電膜24之第二可撓式基板22。其中，該樹脂組成物所含成分類似於實施例一。Then, as shown in Fig. 3C, a paste resin composition 25' is applied to the second flexible substrate 22 having the second conductive film 24. The composition of the resin composition is similar to that of the first embodiment.
接著，如圖3D所示，先預固化該漿狀樹脂組成物25’，使其形成預固化狀態之樹脂組成物25"。再如圖3E所示，使用一模具30，讓預固化之樹脂組成物25"表面形成突起體251。此模具30表面具有許多球體圖塊，因此可以在該預固化狀態之樹脂組成物25"表面壓出許多球體凹洞，使凹洞與凹洞之間形成突起體251，且因為漿狀樹脂組成物25’有先經過預固化步驟，而形成預固化之樹脂組成物25"，因此不會沾黏於模具30上，可順利形成突起體251。Next, as shown in Fig. 3D, the paste resin composition 25' is pre-cured to form a resin composition 25" in a pre-cured state. Further, as shown in Fig. 3E, a mold 30 is used to allow the pre-cured resin. The surface of the composition 25" forms a protrusion 251. The surface of the mold 30 has a plurality of spherical blocks, so that a plurality of spherical cavities can be pressed out on the surface of the resin composition 25" in the pre-cured state, so that the protrusions 251 are formed between the cavities and the cavities, and the paste resin is composed of The material 25' is subjected to a pre-curing step to form a pre-cured resin composition of 25", so that it does not adhere to the mold 30, and the protrusion 251 can be smoothly formed.
再如圖3F所示，對該預固化之樹脂組成物25"進行第二次固化，而於具有第二導電膜24之第二可撓式基板22表面形成一體成型之配向膜25。Further, as shown in FIG. 3F, the pre-cured resin composition 25" is subjected to a second curing, and the integrally formed alignment film 25 is formed on the surface of the second flexible substrate 22 having the second conductive film 24.
接著，如圖3G所示，組合該第一可撓式基板21及該第二可撓式基板22，使該配向膜25夾置於該第一可撓式基板21之該第一導電膜23及該第二可撓式基板22之該第二導電膜24之間。最後，如圖3H所示，利用真空液晶注入機，注入一流體顯示介質26於該第一可撓式基板21及該第二可撓式基板22之間，即完成可撓式顯示面板。Then, as shown in FIG. 3G, the first flexible substrate 21 and the second flexible substrate 22 are combined, and the alignment film 25 is sandwiched between the first conductive film 23 of the first flexible substrate 21. And between the second conductive film 24 of the second flexible substrate 22. Finally, as shown in FIG. 3H, a liquid crystal display medium 26 is injected between the first flexible substrate 21 and the second flexible substrate 22 by using a vacuum liquid crystal injector to complete the flexible display panel.
實施例四Embodiment 4
參考圖4A至4H，其係本實施例可撓式顯示面板之製作流程示意圖。4A to 4H are schematic diagrams showing the manufacturing process of the flexible display panel of the present embodiment.
如圖4A及4B所示，提供一第一可撓式基板21及一第二可撓式基板22，並於其表面分別形成一圖案化之第一導電膜23及一圖案化之第二導電膜24。As shown in FIG. 4A and FIG. 4B, a first flexible substrate 21 and a second flexible substrate 22 are provided, and a patterned first conductive film 23 and a patterned second conductive layer are respectively formed on the surface thereof. Membrane 24.
然後，如圖4C所示，塗佈一漿狀樹脂組成物25’於具有該第二導電膜24之第二可撓式基板22。其中，該樹脂組成物所含成分類似於實施例一。Then, as shown in Fig. 4C, a paste resin composition 25' is applied to the second flexible substrate 22 having the second conductive film 24. The composition of the resin composition is similar to that of the first embodiment.
接著，如圖4D所示，使用一表面塗佈或噴灑有離型劑之模具30，讓漿狀樹脂組成物25’表面形成突起體251。由於模具30表面具有離型劑，因此漿狀樹脂組成物25’不會沾黏於模具30上，可順利形成突起體251。Next, as shown in Fig. 4D, a mold 30 coated with a surface or coated with a release agent is used to form a protrusion 251 on the surface of the paste resin composition 25'. Since the surface of the mold 30 has a release agent, the slurry resin composition 25' does not adhere to the mold 30, and the protrusions 251 can be smoothly formed.
再如圖4E所示，對該漿狀樹脂組成物25’進行固化，而於具有第二導電膜24之第二可撓式基板22表面形成一體成型之配向膜25。Further, as shown in Fig. 4E, the paste resin composition 25' is cured, and an integrally formed alignment film 25 is formed on the surface of the second flexible substrate 22 having the second conductive film 24.
接著，如圖4F所示，組合該第一可撓式基板21及該第二可撓式基板22，使該配向膜25夾置於該第一可撓式基板21之該第一導電膜23及該第二可撓式基板22之該第二導電膜24之間。最後，如圖4G所示，利用真空液晶注入機，注入一流體顯示介質26於該第一可撓式基板21及該第二可撓式基板22之間，即完成可撓式顯示面板。Then, as shown in FIG. 4F, the first flexible substrate 21 and the second flexible substrate 22 are combined, and the alignment film 25 is sandwiched between the first conductive film 23 of the first flexible substrate 21. And between the second conductive film 24 of the second flexible substrate 22. Finally, as shown in FIG. 4G, a liquid crystal display medium 26 is injected between the first flexible substrate 21 and the second flexible substrate 22 by using a vacuum liquid crystal injector to complete the flexible display panel.
實real 施例五Example 5
參考圖5A至5G，其係本實施例可撓式顯示面板之製作流程示意圖。5A to 5G are schematic diagrams showing the manufacturing process of the flexible display panel of the embodiment.
如圖5A及5B所示，提供一第一可撓式基板21及一第二可撓式基板22，並於其表面分別形成一圖案化之第一導電膜23及一圖案化之第二導電膜24。As shown in FIGS. 5A and 5B, a first flexible substrate 21 and a second flexible substrate 22 are provided, and a patterned first conductive film 23 and a patterned second conductive layer are respectively formed on the surface thereof. Membrane 24.
然後，如圖5C所示，塗佈一部份交聯之樹脂組成物25a。此樹脂組成物25a的製備方法，舉例如下：準備如實施例一所述之漿狀樹脂組成物，以業界常用方式使此漿狀樹脂組成物中部份的主要材料進行交聯，如此便可形成本實施例所使用之部份交聯樹脂組成物25a。Then, as shown in Fig. 5C, a portion of the crosslinked resin composition 25a is applied. The preparation method of the resin composition 25a is exemplified by preparing a paste resin composition as described in Example 1, and crosslinking the main material of the slurry resin composition in a manner conventional in the industry. A part of the crosslinked resin composition 25a used in the present example was formed.
接著，如圖5D所示，使用一滾輪作為模具30，此滾輪表面具有許多球狀凹洞，因此可以在部份交聯樹脂組成物25a表面滾壓形成許多半球狀突起體251。由於使用部分交聯之樹脂組成物25a，因此同樣不會沾黏於模具30上，可順利形成突起體251。Next, as shown in Fig. 5D, a roller is used as the mold 30 having a plurality of spherical cavities on the surface of the roller, so that a plurality of hemispherical projections 251 can be formed on the surface of the partially crosslinked resin composition 25a. Since the partially crosslinked resin composition 25a is used, it is also not adhered to the mold 30, and the protrusions 251 can be formed smoothly.
再如圖5E所示，對該樹脂組成物25a進行固化，而於具有第二導電膜24之第二可撓式基板22表面形成一體成型之配向膜25。Further, as shown in FIG. 5E, the resin composition 25a is cured, and an integrally formed alignment film 25 is formed on the surface of the second flexible substrate 22 having the second conductive film 24.
接著，如圖5F所示，組合該第一可撓式基板21及該第二可撓式基板22，使該配向膜25夾置於該第一可撓式基板21之該第一導電膜23及該第二可撓式基板22之該第二導電膜24之間。最後，如圖5G所示，利用真空液晶注入機，注入一流體顯示介質26於該第一可撓式基板21及該第二可撓式基板22之間，即完成可撓式顯示面板。Then, as shown in FIG. 5F, the first flexible substrate 21 and the second flexible substrate 22 are combined, and the alignment film 25 is sandwiched between the first conductive film 23 of the first flexible substrate 21. And between the second conductive film 24 of the second flexible substrate 22. Finally, as shown in FIG. 5G, a liquid crystal display medium 26 is injected between the first flexible substrate 21 and the second flexible substrate 22 by using a vacuum liquid crystal injector to complete the flexible display panel.
實施例六Embodiment 6
參考圖6A至6H，其係本實施例可撓式顯示面板之製作流程示意圖。6A to 6H are schematic diagrams showing the manufacturing process of the flexible display panel of the present embodiment.
如圖6A及6B所示，提供一第一可撓式基板21及一第二可撓式基板22，並於其表面分別形成一圖案化之第一導電膜23及一圖案化之第二導電膜24。As shown in FIG. 6A and FIG. 6B, a first flexible substrate 21 and a second flexible substrate 22 are provided, and a patterned first conductive film 23 and a patterned second conductive layer are respectively formed on the surface thereof. Membrane 24.
然後，如圖6C所示，塗佈一漿狀樹脂組成物25’於具有該第二導電膜24之第二可撓式基板22。其中，該樹脂組成物25’所含成分類似於實施例一。Then, as shown in Fig. 6C, a paste resin composition 25' is applied to the second flexible substrate 22 having the second conductive film 24. Here, the composition of the resin composition 25' is similar to that of the first embodiment.
接著，如圖6D所示，於該漿狀樹脂組成物25’表面形成一疏水性之樹脂膜25b，再如圖6E所示，使用一模具30壓印，讓漿狀樹脂組成物25’表面形成突起體251。因為漿狀樹脂組成物25’表面具有該疏水性之樹脂膜25b，故模具30上不會沾黏有漿狀樹脂組成物25’，可順利形成突起體251。Next, as shown in Fig. 6D, a hydrophobic resin film 25b is formed on the surface of the paste resin composition 25', and as shown in Fig. 6E, a mold 30 is used to imprint the surface of the paste resin composition 25'. A protrusion 251 is formed. Since the surface of the slurry-like resin composition 25' has the hydrophobic resin film 25b, the slurry-like resin composition 25' is not adhered to the mold 30, and the protrusions 251 can be smoothly formed.
再如圖6F所示，對該漿狀樹脂組成物25’及疏水性之樹脂膜25b進行固化，而於具有第二導電膜24之第二可撓式基板22表面形成一體成型之配向膜25。Further, as shown in FIG. 6F, the paste resin composition 25' and the hydrophobic resin film 25b are cured, and the integrally formed alignment film 25 is formed on the surface of the second flexible substrate 22 having the second conductive film 24. .
接著，如圖6G所示，組合該第一可撓式基板21及該第二可撓式基板22，使該配向膜25夾置於該第一可撓式基板21之該第一導電膜23及該第二可撓式基板22之該第二導電膜24之間。最後，如圖6H所示，利用真空液晶注入機，注入一流體顯示介質26於該第一可撓式基板21及該第二可撓式基板22之間，即完成可撓式顯示面板。Then, as shown in FIG. 6G, the first flexible substrate 21 and the second flexible substrate 22 are combined, and the alignment film 25 is sandwiched between the first conductive film 23 of the first flexible substrate 21. And between the second conductive film 24 of the second flexible substrate 22. Finally, as shown in FIG. 6H, a liquid crystal display medium 26 is injected between the first flexible substrate 21 and the second flexible substrate 22 by using a vacuum liquid crystal injector to complete the flexible display panel.
測試例一 配向膜之機械性質測試Test Example 1 Mechanical properties test of the alignment film
於上述實施例製造過程中，表面形成有配向膜25之第二可撓式基板22，進行相關機械性質測試，每種測試進行三次重複。In the manufacturing process of the above embodiment, the second flexible substrate 22 having the alignment film 25 formed on the surface was subjected to relevant mechanical property tests, and each test was repeated three times.
其一係進行洛氏硬度測試，其中測試之樣本平均厚度為1.01至1.2 mm，並使用B標尺洛氏硬度試驗機(Rockwell hardness B-scale(HRB) tester)、1/16吋鋼珠頭，以100公斤荷重進行測試。其二係進行磨耗測試，其中使用ASTMD1044(Tabor wear test) 1000圈，兩邊法碼荷重各為1000公克，樣品重量之精確度達0.0001公克。其三係進行耐壓回復性測試。上述測試所得結果如下表一。The Rockwell hardness test was performed on a series of samples with a mean thickness of 1.01 to 1.2 mm and a Rockwell hardness B-scale (HRB) tester and a 1/16 inch steel ball bead. Tested with a load of 100 kg. The second part is subjected to abrasion test, in which 1000 mm of ASTM D1044 (Tabor wear test) is used, the load of each side of the code is 1000 g, and the accuracy of the sample weight is 0.0001 g. The three systems are tested for pressure recovery. The results of the above tests are shown in Table 1.
其四係以使用手指測試表面具有配向膜之基板的撓曲性能。The four are used to test the flexural properties of the substrate having the alignment film on the surface using a finger.
由上述實驗可知，本發明上述製造方法中所製得之配向膜，具有良好的硬度、磨耗度、耐壓回復性及撓曲性。As is apparent from the above experiments, the alignment film produced by the above production method of the present invention has good hardness, abrasion resistance, pressure recovery property and flexibility.
首先，針對前述實施例製得之可撓性顯示面板，以手指測試其撓曲性能，結果可知，顯示面板其中液晶仍保持均勻，表示配向膜及其表面的突起體仍可維持兩基板之間的距離，表示此顯示面板具有良好的撓曲性。Firstly, the flexible display panel prepared in the foregoing embodiment is tested for flexural performance by fingers. As a result, it can be seen that the liquid crystal remains uniform in the display panel, and the protrusions representing the alignment film and its surface can still maintain between the two substrates. The distance indicates that the display panel has good flexibility.
另進行光電效應顯示測試，所得結果可知，經過本發明所述方法製得之可撓性面板，可以顯示出所設計的圖樣。Further, a photoelectric effect display test was carried out, and as a result, it was found that the flexible panel obtained by the method of the present invention can exhibit the designed pattern.
綜上所述，本發明利用光固化型或熱固化型之樹脂組成物(例如阻水阻氣之紫外光硬化型聚氨酯)，搭配使用模具或轉印模具，經過兩次固化作用，將樹脂組成物形成特定形狀(如表面具有突起體)且一體成型的配向膜，後續製成可撓性顯示面板。其中配向膜不但支撐性強，且價格便宜，再加上整體製程簡單且耗費時間短，可大幅提升生產速率。若搭配使用紫外光硬化型聚氨酯材料，因其具有阻水阻氣之功能性，更可進一步提升軟性顯示器之再現性與可靠度，增強其抵抗外力所造的形變，維持原有面板間隙值，以保證原光學表現品質及耐用性。In summary, the present invention utilizes a photocurable or thermosetting resin composition (for example, a water-blocking ultraviolet curable polyurethane), which is combined with a mold or a transfer mold to form a resin after two curing operations. The object forms an alignment film of a specific shape (such as a protrusion on the surface) and is integrally formed, and is subsequently formed into a flexible display panel. Among them, the alignment film is not only strong in support, but also inexpensive, and the overall process is simple and time-consuming, which can greatly increase the production rate. If it is combined with UV-curable polyurethane material, it has the function of water-blocking and gas-blocking, which can further enhance the reproducibility and reliability of the flexible display, enhance the deformation caused by the external force, and maintain the original panel gap value. To ensure the original optical performance quality and durability.
上述實施例僅係為了方便說明而舉例而已，本發明所主張之權利範圍自應以申請專利範圍所述為準，而非僅限於上述實施例。The above-mentioned embodiments are merely examples for convenience of description, and the scope of the claims is intended to be limited to the above embodiments.
21‧‧‧第一可撓式基板21‧‧‧First flexible substrate
22‧‧‧第二可撓式基板22‧‧‧Second flexible substrate
25a‧‧‧部份交聯樹脂組成物25a‧‧‧Partially crosslinked resin composition
25b‧‧‧疏水性樹脂膜25b‧‧‧hydrophobic resin film
23‧‧‧第一導電膜23‧‧‧First conductive film
24‧‧‧第二導電膜24‧‧‧Second conductive film
25’‧‧‧漿狀樹脂組成物25'‧‧·Pulp resin composition
25"‧‧‧預固化樹脂組成物25"‧‧‧Precured resin composition
25‧‧‧配向膜25‧‧‧Alignment film
251‧‧‧突起體251‧‧‧ protrusions
26‧‧‧流體顯示介質26‧‧‧ Fluid display media
30‧‧‧模具30‧‧‧Mold
圖1A至1H係本發明實施例一中，可撓式顯示面板之製作流程示意圖。1A to 1H are schematic diagrams showing the manufacturing process of a flexible display panel in the first embodiment of the present invention.
圖2A至2G係本發明實施例二中，可撓式顯示面板之製作流程示意圖。2A to 2G are schematic diagrams showing the manufacturing process of the flexible display panel in the second embodiment of the present invention.
圖3A至3H係本發明實施例三中，可撓式顯示面板之製作流程示意圖。3A to 3H are schematic diagrams showing the manufacturing process of the flexible display panel in the third embodiment of the present invention.
圖4A至4G係本發明實施例四中，可撓式顯示面板之製作流程示意圖。4A to 4G are schematic diagrams showing the manufacturing process of the flexible display panel in the fourth embodiment of the present invention.
圖5A至5G係本發明實施例五中，可撓式顯示面板之製作流程示意圖。5A to 5G are schematic diagrams showing the manufacturing process of the flexible display panel in the fifth embodiment of the present invention.
圖6A至6H係本發明實施例六中，可撓式顯示面板之製作流程示意圖。6A to 6H are schematic diagrams showing the manufacturing process of the flexible display panel in the sixth embodiment of the present invention.
21．．．第一可撓式基板twenty one. . . First flexible substrate
22．．．第二可撓式基板twenty two. . . Second flexible substrate
23．．．第一導電膜twenty three. . . First conductive film
24．．．第二導電膜twenty four. . . Second conductive film
25．．．配向膜25. . . Orientation film
251．．．突起體251. . . Protrusion
26．．．流體顯示介質26. . . Fluid display medium
Claims (17)
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|---|---|---|---|---|
| TW200413809A (en) * | 2003-01-24 | 2004-08-01 | Sipix Imaging Inc | An improved electrophoretic display and novel process for its manufacture |
| TW200504407A (en) * | 2003-07-24 | 2005-02-01 | Ind Tech Res Inst | Method for manufacturing liquid crystal display device |
| EP0836892B1 (en) * | 1996-10-21 | 2005-06-01 | Dai Nippon Printing Co., Ltd. | Transfer sheet, and pattern-forming method |
| TW200628302A (en) * | 2004-10-29 | 2006-08-16 | 3M Innovative Properties Co | Optical films incorporating cyclic olefin copolymers |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0836892B1 (en) * | 1996-10-21 | 2005-06-01 | Dai Nippon Printing Co., Ltd. | Transfer sheet, and pattern-forming method |
| TW200413809A (en) * | 2003-01-24 | 2004-08-01 | Sipix Imaging Inc | An improved electrophoretic display and novel process for its manufacture |
| TW200504407A (en) * | 2003-07-24 | 2005-02-01 | Ind Tech Res Inst | Method for manufacturing liquid crystal display device |
| TW200628302A (en) * | 2004-10-29 | 2006-08-16 | 3M Innovative Properties Co | Optical films incorporating cyclic olefin copolymers |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9770889B2 (en) | 2014-02-20 | 2017-09-26 | Industrial Technology Research Institute | Composite plate structure and flexible apparatus |
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