Method of manufacturing display panel substrate

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United States of America Patent

PATENT NO 9853070
SERIAL NO

15513173

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Abstract

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A method of manufacturing a display panel substrate having a semiconductor element includes a film forming step of forming a thin film, a resist film forming step of forming a positive resist film on the thin film, a first exposure step of selectively exposing a resist film via a photomask including a pattern of the semiconductor element, a second exposure step of selectively exposing the resist film by scanning and irradiating the resist film with light along an outline shape of the display panel substrate, a developing step of developing the resist film to remove the resist film exposed in the first and second exposure steps and form a resist pattern on the thin film, an etching step of etching the thin film using the resist pattern as a mask, and forming a thin-film pattern by selectively removing the thin film, and a peeling step of peeling the resist pattern.

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Patent Owner(s)

Patent OwnerAddress
SHARP KABUSHIKI KAISHASAKAI-KU SAKAI CITY OSAKA 590-8522

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kadowaki, Shinya Sakai, JP 21 221
Yoshida, Hidefumi Sakai, JP 257 4399

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