Varnish for photo alignment film and liquid crystal display device
AssigneeJapan Display Inc.
InventorsHidehiro SONODA, Takenori HIROTA, Yasushi TOMIOKA, Noboru KUNIMATSU
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Abstract
According to one embodiment, a varnish for a photo alignment film includes an imidization promotor and a first polyamic acid-based compound in an organic solvent. The first polyamic acid-based compound is a polyamic acid or a polyamic acid ester. The imidization promotor has skeleton containing no primary amino group and no secondary amino group. The first polyamic acid-based compound has terminal skeletons containing no primary amino group.
Claims19
A varnish for a photo alignment film comprising an imidization promotor and a first polyamic acid-based compound in an organic solvent, the first polyamic acid-based compound being a polyamic acid or a polyamic acid ester,
- wherein
- the imidization promotor has skeleton containing no primary amino group and no secondary amino group, and the first polyamic acid-based compound has terminal skeletons containing no primary amino group.
A varnish for a photo alignment film comprising a first polyamic acid-based compound in an organic solvent, the first polyamic acid-based compound being a polyamic acid or a polyamic acid ester,
- wherein
- the first polyamic acid-based compound has terminal skeletons containing no primary amino group, and also a diamine skeleton represented by Formula (3) below:
- where L is an aromatic compound group, and I) Y2 is an amino group containing an organic group which may leave by heat, Y3 is H or an amino group containing an organic group which may leave by heat, or II) Y2 and Y3 are bonded together to form a cyclic group containing nitrogen.
Dependencies are inferred from the claim text.