The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2002
Filed:
Dec. 01, 1999
Akiya Izumi, Mobara, JP;
Masao Yoshioka, Chiba, JP;
Tatsuo Hamamoto, Mobara, JP;
Norimasa Akiyama, Mobara, JP;
Other;
Abstract
Disclosed are a liquid crystal display device capable of obtaining preferable display images, whose manufacturing cost is low, and which does not deteriorate the environment at the time of fabrication and a method for fabricating the same. According to the invention, there is provided a liquid crystal display device comprising: a first substrate on which a black matrix, a color filter, and a counter electrode are formed; a second substrate on which a plurality of gate signal lines and a plurality of source signal lines which are disposed so as to cross each other via a gate insulating film, thin film transistors disposed in intersecting points of the gate signal lines and the source signal lines, and pixel electrodes in a matrix disposed in the areas surrounded by the gate signal lines and the source signal lines are formed; and a liquid crystal layer provided between the first substrate and the second substrate, wherein the black matrix is formed by a black resin optical shielding layer and a blue filter layer. In a method for fabricating the liquid crystal display device according to the invention, the black matrix part formed by the blue filter layer is constructed by a photoresist film in which a blue pigment is dispersed and the photoresist film is patterned by using back side exposure.