Invention Grant
- Patent Title: Liquid crystal display device
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Application No.: US14605256Application Date: 2015-01-26
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Publication No.: US09678391B2Publication Date: 2017-06-13
- Inventor: Takenori Hirota
- Applicant: Japan Display Inc.
- Applicant Address: JP Minato-ku
- Assignee: Japan Display Inc.
- Current Assignee: Japan Display Inc.
- Current Assignee Address: JP Minato-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2014-013755 20140128
- Main IPC: G02F1/1337
- IPC: G02F1/1337 ; G02F1/1343 ; G02F1/1368

Abstract:
In a liquid crystal display device, a TFT substrate and a counter substrate are bonded by a sealing material, with a liquid crystal interposed between the two substrates. An alignment film has a two-layer structure of a lower alignment film not subjected to photo alignment treatment and an upper alignment film subjected to photo alignment treatment and contacting the liquid crystal. A hollow with an increased film thickness is formed in an end portion of the lower alignment film. An end portion of the upper alignment film is determined by the hollow of the lower alignment film. The material, process conditions, or other conditions of the lower alignment film for easy control of outer end dimensions can be selected to easily control the profile of the alignment film as a whole. Thus, it is possible to avoid the reduction of reliability due to the reduction of the bonding strength between the sealing material and the alignment film.
Public/Granted literature
- US20150212373A1 LIQUID CRYSTAL DISPLAY DEVICE Public/Granted day:2015-07-30
Information query
IPC分类: