Display panel having uniaxially-stretched organic polymer film as the substrate
AssigneeHitachi, Ltd.
InventorsTakao Umeda, Takao Miyashita, Yuzuru Shimazaki, Tatsuo Igawa, Ken Sasaki, Shigeru Matsuyama
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Abstract
In a display panel consisting essentially of a pair of substrates whose opposed surfaces are equipped with transparent conductive layers and at least one of which consists of an organic polymer film, and of a display member interposed between said pair of substrates, the improvement wherein said organic polymer film is a uniaxially stretched polyester film.
Claims7
In a display panel comprised of a pair of substrates whose opposed surfaces are equipped with transparent conductive layers and at least one of which comprises an organic polymer film and a polarizer disposed adjacent to said polymer film, and of a display member interposed between said pair of substrates, the improvement wherein said organic polymer film is a uniaxially stretched polyester film selected from the group consisting of uniaxially stretched polyethylene terephthalate, uniaxially stretched polyethylene isophthalate, uniaxially stretched polyphenylene isophthalate and uniaxially stretched polybutylene terephthalate;
- the angle defined between the slow and fast principal axes of birefringence of said uniaxially stretched polymer film and the direction of the axis of polarization of said polarizer is within approximately .+-.3.degree..
Dependencies are inferred from the claim text.