公开(公告)号：US09469735B2

公开(公告)日：2016-10-18

申请号：US14768018

申请日：2014-02-25

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Choon Sup Yoon ,  Seung Hyun Oh

IPC: C08J5/24 ,  C08J5/04 ,  C08J5/00 ,  B32B5/02 ,  C08J5/18

CPC classification number: C08J5/24 ,  B32B5/02 ,  B32B7/06 ,  B32B17/064 ,  B32B2262/101 ,  B32B2315/085 ,  B32B2379/08 ,  C08J5/00 ,  C08J5/043 ,  C08J5/18 ,  C08J2379/08

Abstract: Disclosed is a method of manufacturing a colorless transparent polyimide film having impregnated glass fabric, wherein the surface of the polyimide film substrate having impregnated glass fabric is flattened by two flattening steps using a roll-to-roll process, thereby solving problems with an increase in surface roughness of the polyimide substrate when manufacturing the polyimide film having impregnated glass fabric in order to enhance thermal and mechanical properties of a film for use in flexible display substrates and in cover windows for flat panel displays and mobile phones. As the surface roughness of the polyimide film having impregnated glass fabric is flattened to the level of ones of nm from the level ranging of tens of nm to ones of μm, a thin film transistor process can be performed on the polyimide film substrate and the polyimide film is increased in optical transmittance and transparency and can thus be utilized as flexible display substrates and cover windows for flat panel displays and mobile phones.

Abstract translation: 公开了一种制造具有浸渍玻璃织物的无色透明聚酰亚胺膜的方法，其中具有浸渍玻璃织物的聚酰亚胺膜基材的表面通过使用卷对卷工艺的两个扁平化步骤平坦化，从而解决了增加的问题 为了提高用于柔性显示基板的薄膜和用于平板显示器和移动电话的遮光窗的热和机械性能，制造具有浸渍玻璃布的聚酰亚胺薄膜时，聚酰亚胺基板的表面粗糙度。 由于具有浸渍的玻璃织物的聚酰亚胺膜的表面粗糙度从几十nm到μm的范围内的nm平坦化，所以可以对聚酰亚胺膜基片和聚酰亚胺膜进行薄膜晶体管工艺 膜的透光率和透明度增加，因此可以用作平板显示器和手机的柔性显示基板和盖窗。

公开(公告)号：US09417472B2

公开(公告)日：2016-08-16

申请号：US14191985

申请日：2014-02-27

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Choon Sup Yoon ,  Seung Hyun Oh

IPC: G02B1/10 ,  G02F1/1333

CPC classification number: G02B1/10 ,  G02F1/133305

Abstract: A method of manufacturing a colorless transparent polyimide film having reinforced glass fabric for flexible displays, suitable for use in increasing optical transmittance of a polyimide substrate having reinforced glass fabric for flexible displays. This method enables the glass fabric and the colorless transparent polyimide film to be matched in refractive index when the glass fabric is reinforced in the colorless transparent polyimide film to enhance thermal and mechanical properties of a substrate for flexible displays, thus satisfying high optical transparency and optical transmittance of 85% or more, required of a substrate for flexible displays, and thereby the colorless transparent polyimide film having reinforced glass fabric can be used as a substrate for flexible displays.

Abstract translation: 一种制造具有用于柔性显示器的加强玻璃织物的无色透明聚酰亚胺膜的方法，适用于增加具有用于柔性显示器的加强玻璃织物的聚酰亚胺基底的光透射率。 该方法使玻璃织物和无色透明聚酰亚胺膜在玻璃织物在无色透明聚酰亚胺膜中增强时的折射率匹配，以增强用于柔性显示器的基材的热和机械性能，从而满足高光学透明度和光学性 柔性显示器用基板所需的透光率为85％以上，从而可以使用具有强化玻璃织物的无色透明聚酰亚胺膜作为柔性显示器用基板。