| 摘要 |
<p>The display device of the present invention relates to a display device characterized in that it includes a first electrode formed on a substrate, an insulating layer formed on the first electrode in such a way that the first electrode is partially exposed, and a second electrode providing facing the first electrode, and the insulating layer is a positive-type photosensitive polyimide in which the indispensable components are polymer having structural units represented by the following general formula (1) as its chief component and a photoacid generator.
<Chemistry id="chema01" num="0001"><Image id="ia01" he="42" wi="123" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" /></Chemistry> (R<Sup>1</Sup> and R<Sup>2</Sup> represent divalent to octavalent organic groups having at least two carbon atoms, and R<Sup>3</Sup> and R<Sup>4</Sup> represent hydrogen, an alkali metal ion, an ammonium ion or an organic group with 1 to 20 carbons. R<Sup>3</Sup> and R<Sup>4</Sup> may be the same or different. m is an integer in the range 3 to 100,000, and n and o are integers in the range 0 to 2. p and q are integers in the range 0 to 4, and n + q > 0.)</p><p>In accordance with the present invention, patterning of the insulating layer comprising polyimide is possible by a simple process. Furthermore, it is possible to obtain readily the tapered shape which is the preferred cross-section of the insulating layer.</p> |
